HSB GROUP INC
8-K, 1998-01-12
FIRE, MARINE & CASUALTY INSURANCE
Previous: DAKOTA TELECOMMUNICATIONS GROUP DELAWARE INC, S-8, 1998-01-12
Next: VALERO ENERGY CORP/TX, 4, 1998-01-12



                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


      Date of Report (Date of earliest event reported) - December 31, 1997


                                 HSB GROUP, INC.
             (Exact name of registrant as specified in its charter)


     Connecticut                   001-13135             06-1475343
   (State or other               (Commission           (IRS Employer
jurisdiction of incorporation)    File Number)       Identification No.)


               One State Street, Hartford, Connecticut 06102-5024
               (Address of principal executive offices) (Zip Code)


      Registrant's telephone number, including area code - (860-722-1866)




<PAGE>

Item 5. Other Events.

On January 6, 1998 The Hartford Steam Boiler  Inspection  and Insurance  Company
("HSB"),  the principal  subsidiary of HSB Group,  Inc. (the "Company") sold its
interest  in  Industrial   Risk  Insurers   ("IRI")  to  Employers   Reinsurance
Corporation  in  accordance  with  a  previously  announced  purchase  and  sale
agreement  between  ERC  and  IRI's  twenty-three  member  insurers.  IRI  is an
unincorporated   joint  underwriting   association  which  underwrites  property
insurance  on  highly   protected   risks.   HSB  received   gross  proceeds  of
approximately  $50 million,  prior to transaction  costs, for its 23.5% share in
IRI.  Because the sale was  structured in part as a reinsurance  transaction,  a
portion of HSB's gain will be deferred and recognized over the remaining term of
IRI's in-force business as of the date of the closing of the sale.

Contemporaneous with the close of the sale, IRI was reconstituted with ERC (with
a 99.5%  share ) and HSB (with a .5%  share)  as its sole  members.  Michael  L.
Downs,  senior vice president of the Company and HSB, will be appointed chairman
and  chief  executive  officer  of the  reconstituted  IRI.  HSB will  write the
business for the reconstituted IRI using its insurance licenses and will provide
certain other  services.  It is anticipated  that HSB will transfer its domestic
highly protected risk  manufacturing book of business to IRI and will retain 85%
of the  equipment  breakdown  business and 15% of the  property  business of the
combined insurance portfolio.

In a related transaction,  a Delaware business trust newly formed by the Company
has sold $300 million of 7% Convertible Capital Securities ("Convertible Capital
Securities")  to ERC.  The  proceeds  from the sale  were  used by the  trust to
purchase  7%  Convertible   Subordinated  Deferrable  Interest  Debentures  (the
"Debentures")  from the  Company  pursuant  to the terms of an  Indenture  dated
December  31,1997,  issued by the Company to the First National Bank of Chicago,
as Trustee,  (the  "Indenture")  a copy of which is attached as Exhibit 4.2. The
Company  contributed  $250 million of the proceeds it received  upon the sale of
its Debentures to HSB to support the anticipated increase in its direct writings
attributable to the IRI business.


<PAGE>



The following  represents a pro forma condensed  balance sheet of the Company at
September 30, 1997 assuming the Convertible  Capital  Securities had been issued
as of September 30, 1997.

                           (in millions except ratios)

                                                    Actual           ProForma
                                                   9/30/97            9/30/97
                                                   -------           --------
Cash & Invested Assets                              $713.3           $1,013.3
Insurance Premiums Receivable                        126.8              126.8
Prepaid Acquisition Costs                             45.5               45.5
Reinsurance Assets                                   146.4              146.4
Investment in Radian                                  85.0               85.0
Other                                                139.7              139.7

                                             ==============     ==============
  Total Assets                                    $1,256.7           $1,556.7
                                             ==============     ==============

Unearned Insurance Premiums                         $295.8             $295.8
Claims & Adjustment Expenses                         278.8              278.8
Debt                                                  43.1               43.1
Other Liabilities                                    189.6              189.6

                                             --------------     --------------
  Total Liabilities                                  807.3              807.3
                                             --------------     --------------

Convertible Redeemable Preferred Stock                20.0                    *
HSB Capital Securities I                             108.9              108.9
HSB Capital Securities II                                               300.0
Shareholders' Equity                                 320.5              340.5

                                             ==============     ==============
Total                                             $1,256.7           $1,556.7
                                             ==============     ==============


*The pro forma condensed balance sheet includes adjustments for (i) the issuance
of $300  million of  Convertible  Capital  Securities;  and (ii) the issuance of
398,406  shares of common  stock on  October  30,  1997 upon  conversion  of the
convertible redeemable preferred stock.




<PAGE>


The following represents a pro forma ratio of earnings to fixed charges assuming
the Convertible Capital Securities had been issued as of January 1, 1997.

                                  Actual                  ProForma
                                  1/1/97                  1/1/97
                                  ------                  ---------
Ratio of Earnings to
Fixed Charges                        5.27                    2.42 *





* If pro forma data were adjusted to reflect the potential  investment  earnings
at a 7% rate on the proceeds  from the sale of the $300  million of  Convertible
Capital Securities, the ratio would be approximately 2.96%.


The Convertible Capital Securities are callable by the Company at its option (i)
at any time  after  seven  years;  (ii)  upon the  occurrence  of a tax event as
defined  in the  Indenture;  (iii)  in the  event  that  the  Company  vetoes  a
prospective  purchaser of the  Convertible  Capital  Securities;  or (iv) in the
event of a change in control of ERC.  The  Convertible  Capital  Securities  are
mandatorily  redeemable on December 31, 2017,  and are  redeemable at par plus a
redemption premium, at the option of ERC, in the event of a change in control of
the Company within five years following issuance of the securities.

The  Convertible  Capital  Securities are  convertible,  in whole or in part, at
ERC's option at any time, subject to regulatory approval, into shares of Company
common stock at a conversion  price of $85,  subject to adjustment.  The Company
has provided  certain  registration  rights to ERC in connection with the common
stock into which the Convertible Capital Securities are convertible  pursuant to
a  Registration  Rights  Agreement  dated  December 31, 1997, a copy of which is
attached as Exhibit 4.8.

The  foregoing  summary of the terms of the  Convertible  Capital  Securities is
qualified by reference to the Trust  Agreement dated December 31, 1997 among the
Company, the First National Bank of Chicago, as Property Trustee,  First Chicago
Delaware  Inc.,  as  Delaware  Trustee  and the  Administrative  Trustees  named
therein, a copy of which is attached as Exhibit 4.5.

Were ERC to exercise its conversion  rights in total,  it would hold, on a fully
diluted basis,  approximately  15.3% of the Company's common stock.  Pursuant to
certain  provisions  contained in the Purchase Agreement dated December 31, 1997
attached as Exhibit  4.1,  ERC has agreed to certain  "standstill"  arrangements
which for a period of five years will  preclude ERC from  purchasing  any common
stock of the Company,  other than by exercise of its conversion rights, and will
limit its ability to take  certain  other  actions  with  respect to the Company
during that period.



<PAGE>


Item 7(c)  Exhibits.

Exhibit

4.1      Purchase  Agreement  dated as of  December  31,  1997  among  Employers
         Reinsurance  Corporation,  ERC  Life  Reinsurance  Corporation  and HSB
         Group, Inc.

4.2      Indenture of HSB Group, Inc. relating to the 7.0% Convertible 
         Subordinated Deferrable Interest Debenture Due December 31, 2017

4.3      Form of Certificate of 7.0% Convertible Subordinated Deferrable 
         Interest Debentures due December 31, 2017

4.4      Certificate of Trust of HSB Capital II

4.5      Trust Agreement dated as of December 31, 1997 among HSB Group,
         Inc., The First National Bank of Chicago, First Chicago Delaware Inc.
         and The Administrative Trustees named therein.

4.6      Form of Capital Securities Certificate of HSB Capital II

4.7      Guarantee Agreement between HSB Group, Inc. and The First
         National Bank of Chicago dated as of December 31, 1997 relating
         to HSB Capital II.

4.8      Registration  Rights  Agreement  dated as of  December  31,  1997 among
         Employers Reinsurance Corporation, ERC Life Reinsurance Corporation and
         HSB Group, Inc.










<PAGE>


     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
     Registrant  has duly  caused  this report to be signed on its behalf by the
     undersigned, thereunto duly authorized.


                                 HSB GROUP, INC.



     Dated:  January 12, 1998     /s/ Saul L. Basch
                                  Saul L. Basch
                                  Senior Vice President, Treasurer and
                                  Chief Financial Officer


<PAGE>


                                  EXHIBIT INDEX

Exhibit

4.1      Purchase  Agreement  dated as of  December  31,  1997  among  Employers
         Reinsurance  Corporation,  ERC  Life  Reinsurance  Corporation  and HSB
         Group, Inc.

4.2      Indenture of HSB Group, Inc. relating to the 7.0% Convertible  
         Subordinated Deferrable Interest Debenture Due December 31, 2017

4.3      Form of Certificate of 7.0% Convertible Subordinated Deferrable 
         Interest Debentures due December 31, 2017

4.4      Certificate of Trust of HSB Capital II

4.5      Trust Agreement dated as of December 31, 1997 among HSB Group,
         Inc., The First National Bank of Chicago, First Chicago Delaware Inc.
         and The Administrative Trustees named therein.

4.6      Form of Capital Securities Certificate of HSB Capital II

4.7      Guarantee Agreement between HSB Group, Inc. and The First
         National Bank of Chicago dated as of December 31, 1997 relating
         to HSB Capital II.

4.8      Registration  Rights  Agreement  dated as of  December  31,  1997 among
         Employers Reinsurance Corporation, ERC Life Reinsurance Corporation and
         HSB Group, Inc.




                                                       Exhibit 4.1

                                  $300,000,000

                                 HSB CAPITAL II

                         Convertible Capital Securities
                (liquidation amount $1,000 per Capital Security)
        fully and unconditionally guaranteed to the extent set forth in
                                the Guarantee by

                                 HSB Group, Inc.


                               Purchase Agreement


                                December 31, 1997

ERC Life Reinsurance Corporation
Employers Reinsurance Corporation
5200 Metcalf
P.O. Box 2991
Overland Park, Kansas 66201-1391

Ladies and Gentlemen:

         HSB Capital II (the "Trust"),  a statutory business trust created under
the Business  Trust Act of the State of Delaware (the  "Delaware  Business Trust
Act"), and HSB Group, Inc., a Connecticut corporation, as depositor of the Trust
and as Guarantor (the "Guarantor"), propose, subject to the terms and conditions
stated herein  (including the attached term sheet (the "Term Sheet")),  that the
Trust  issue  and  sell to the  Purchasers  named  in  Schedule  I  hereto  (the
"Purchasers"),  an aggregate  liquidation  amount of $300,000,000 of Convertible
Capital  Securities  (liquidation  amount  $1,000  per  Capital  Security)  (the
"Securities")  representing  undivided beneficial interests in the assets of the
Trust, guaranteed by the Guarantor as to the payment of distributions, and as to
payments on liquidation  or  redemption,  to the extent set forth in a guarantee
agreement (the "Guarantee") between the Guarantor and The First National Bank of
Chicago, as Trustee (the "Guarantee  Trustee").  The proceeds of the sale of the
Securities  and an  aggregate  liquidation  amount of  $9,300,000  of its Common
Securities   (liquidation  amount  $1,000  per  common  security)  (the  "Common
Securities")  are to be invested by the Trust in 7.0%  Convertible  Subordinated
Deferrable Interest Debentures (the "Subordinated Debentures") of the Guarantor,
to be issued  pursuant to an Indenture (the  "Indenture")  between the Guarantor
and The First National Bank of Chicago,  as Trustee (the  "Debenture  Trustee").
The Common Stock of Guarantor  issuable upon  conversion of the Securities  (the
"Guarantor  Common  Stock") will be subject to a registration  rights  agreement
("Registration Rights Agreement") between the Guarantor and the Purchasers.  The
Guarantor is the holding  company of The Hartford  Steam  Boiler  Insurance  and
Inspection Company (the "Principal Subsidiary") and certain of its subsidiaries.

         1. The  Guarantor  and the Trust  jointly and  severally  represent and
warrant to, and agree with, the Purchasers that:




<PAGE>



                (a) The Principal  Subsidiary's Annual Report on Form 10-K/A for
         the fiscal year ended December 31, 1996 and the  Guarantor's  Quarterly
         Report on Form 10-Q for the quarter ended  September 30, 1997 have been
         made available to the Purchasers in connection with the offering of the
         Securities.  All  documents  of  the  Guarantor  or  of  the  Principal
         Subsidiary  subsequently  filed with the United States  Securities  and
         Exchange Commission (the "Commission") pursuant to Section 13(a), 13(c)
         or 15(d) of the  United  States  Securities  Exchange  Act of 1934,  as
         amended (the  "Exchange  Act"),  on or prior to the date hereof and any
         reference to the documents  prepared or distributed in connection  with
         the offering of the Securities shall be deemed to include any documents
         filed with the Commission  pursuant to Section 13(a), 13(c) or 15(d) of
         the  Exchange  Act after the date  hereof  and prior to such  specified
         date;  all  documents  filed under the Exchange Act by the Guarantor or
         the Principal Subsidiary and so deemed to be included, or any amendment
         or  supplement  thereto,  are  hereinafter  called  the  "Exchange  Act
         Reports".  The Exchange  Act Reports,  when they were or are filed with
         the Commission,  conformed or will conform in all material  respects to
         the  applicable  requirements  of the Exchange  Act and the  applicable
         rules and  regulations of the Commission  thereunder.  The Exchange Act
         Reports did not and will not, as of their respective dates,  contain an
         untrue  statement of a material  fact or omit to state a material  fact
         necessary in order to make the statements  therein, in the light of the
         circumstances under which they were made, not misleading;

                (b) There has not been any  material  adverse  change in, or any
         adverse development which materially affects, the business,  properties
         or financial  condition or results of  operations  of the Guarantor and
         its  subsidiaries  taken as a whole since  September 30, 1997 otherwise
         than as set forth or contemplated herein; and, since September 30, 1997
         and  except  as  otherwise  set  forth  herein,  there has not been any
         material change in the capital stock or long-term debt of the Guarantor
         or any of  its  subsidiaries  or any  material  adverse  change  or any
         development  involving a prospective  material  adverse  change,  in or
         affecting  the  general  affairs,   management,   financial   position,
         shareholders'  equity or results of operations of the Guarantor and its
         subsidiaries  taken  as  a  whole,  otherwise  than  as  set  forth  or
         contemplated herein;

                (c) The  Guarantor  has been duly  incorporated  and is  validly
         existing as a corporation  in good standing under the laws of the state
         of Connecticut,  with power and authority  (corporate and other) to own
         its  properties  and conduct its  business as described in the Exchange
         Act Reports,  and has been duly qualified as a foreign  corporation for
         the  transaction  of business and is in good standing under the laws of
         each  other  jurisdiction  in which it owns or  leases  properties,  or
         conducts  any  business,  so as to require  such  qualification,  or is
         subject to no material liability or disability by reason of the failure
         to be so  qualified  in any such  jurisdiction;  and  each  significant
         subsidiary  (as defined in  Regulation  S-X of the  Commission,  each a
         "Significant  Subsidiary") of the Guarantor has been duly  incorporated
         and is validly  existing as a corporation  in good  standing  under the
         laws of its jurisdiction of incorporation;

                (d) The Guarantor has an authorized  capitalization as set forth
         in the Exchange Act  Reports,  and all of the issued  shares of capital
         stock of the Guarantor have been duly and validly authorized and issued
         and are fully paid and non-assessable;  and all of the issued shares of
         capital stock of each Significant Subsidiary of the Guarantor have been
         duly  and  validly   authorized   and   issued,   are  fully  paid  and
         non-assessable and (except for directors'  qualifying shares) are owned
         directly or indirectly by the  Guarantor,  free and clear of all liens,
         encumbrances, equities or claims;



                                                    2

<PAGE>



                (e) The Trust has been duly created and is validly existing as a
         statutory  business trust in good standing under the Delaware  Business
         Trust  Act with the  power  and  authority  to own its  properties  and
         conduct its business as described in the Trust Agreement, and the Trust
         has  conducted no business to date other than as  contemplated  by this
         Agreement,  and it will conduct no business in the future that would be
         inconsistent with the Trust Agreement (as defined below);  the Trust is
         not a party to or bound by any agreement or instrument  other than this
         Agreement,  the  Trust  Agreement  (the  "Trust  Agreement")  among the
         Guarantor,  the  Administrative  Trustees named therein,  and The First
         National Bank of Chicago, as Property Trustee (the "Property Trustee"),
         and First Chicago  Delaware  Inc., as Delaware  Trustee (the  "Delaware
         Trustee"  and,  together  with  the  Administrative  Trustees,  and the
         Property  Trustee,  the  "Issuer  Trustees")  and  the  holders  of the
         Securities  issued  thereunder,  and  the  agreements  and  instruments
         contemplated  by the Trust  Agreement;  the Trust has no liabilities or
         obligations   other  than  those   arising  out  of  the   transactions
         contemplated  by this  Agreement  and the  Trust  Agreement;  based  on
         current  law,  the  Trust  is not  and  will  not be  classified  as an
         association  taxable as a corporation  for United States federal income
         tax purposes; and the Trust is not a party to or subject to any action,
         suit or proceeding of any nature;

                (f) The Securities have been duly and validly  authorized by the
         Trust,  and,  when issued and  delivered  against  payment  therefor as
         provided  herein,  will be duly and  validly  issued and fully paid and
         non-assessable  undivided  beneficial  interests  in the  assets of the
         Trust;  the issuance of the  Securities is not subject to preemptive or
         other similar rights;  the Securities will have the rights set forth in
         the  Trust  Agreement,  and the terms of the  Securities  are valid and
         binding   on  the  Trust;   the   holders   of  the   Securities   (the
         "Securityholders")  will be entitled to the same limitation of personal
         liability  extended to stockholders of private  corporations for profit
         organized under the General Corporation Law of the State of Delaware;

                (g) The  Common  Securities  of the  Trust  have  been  duly and
         validly  authorized  by the Trust and upon delivery by the Trust to the
         Guarantor  against  payment  therefor,  will be duly and validly issued
         undivided beneficial interests in the assets of the Trust; the issuance
         of the Common  Securities is not subject to preemptive or other similar
         rights; and at the Time of Delivery (as defined in Section 4(a) below),
         all of the issued and outstanding  Common  Securities of the Trust will
         be  directly  owned by the  Guarantor  free and  clear of any  security
         interest, mortgage, pledge, lien, encumbrance, claim or equity;

                (h)  The  Guarantee,  the  Subordinated  Debentures,  the  Trust
         Agreement,  the Indenture and the  Registration  Rights  Agreement (the
         Guarantee,  the Subordinated  Debentures,  the Trust Agreement, and the
         Indenture being collectively referred to as the "Guarantor Agreements")
         have  been duly and  validly  authorized  by the  Guarantor  and,  when
         validly executed and delivered by the Guarantor and, in the case of the
         Guarantee,  by  the  Guarantee  Trustee,  in  the  case  of  the  Trust
         Agreement,  by the Trustees and, in the case of the  Indenture,  by the
         Debenture   Trustee,   will   constitute   valid  and  legally  binding
         obligations  of the  Guarantor,  enforceable  in accordance  with their
         respective   terms,   subject,   as  to  enforcement,   to  bankruptcy,
         insolvency,  reorganization,  moratorium  and  similar  laws of general
         applicability relating to or affecting creditors' rights and to general
         equity principles;  and the Subordinated Debentures are entitled to the
         benefits of the Indenture;



                                                    3

<PAGE>



                (i)  The  execution  and  delivery  of  this  Agreement  and the
         Guarantor   Agreements  and  the   consummation  of  the   transactions
         contemplated  herein  and  therein,  have been duly  authorized  by all
         necessary  corporate  action  on the  part of the  Guarantor,  and when
         executed  by the  Guarantor  and the  other  parties  thereto  will not
         conflict  with or result in any breach or violation of any of the terms
         or  provisions  of, or  constitute  a default  under,  or result in the
         creation  or  imposition  of any  security  interest,  lien,  charge or
         encumbrance  upon  any  property  or  assets  of the  Guarantor  or its
         Significant  Subsidiaries pursuant to any indenture,  mortgage, deed of
         trust,  loan  agreement,  contract or other  agreement or instrument to
         which the Guarantor or any of its  Significant  Subsidiaries is a party
         or by which the Guarantor or any of its Significant Subsidiaries may be
         bound or to which any of the property or assets of the Guarantor or any
         of its Significant Subsidiaries is subject, nor will such action result
         in any violation of the provisions of the Certificate of  Incorporation
         or the By-laws of the Guarantor or the Certificate of  Incorporation or
         By-laws of any of its  Significant  Subsidiaries  or any statute or any
         order,  rule or regulation of any court or governmental  agency or body
         having  jurisdiction  over  the  Guarantor  or any  of its  Significant
         Subsidiaries  or any of their  properties;  and no  consent,  approval,
         authorization, order, registration or qualification of or with any such
         court or governmental agency or body is required for the issue and sale
         of  the  Securities  or  the  consummation  by  the  Guarantor  of  the
         transactions   contemplated   by  this   Agreement  or  the   Guarantor
         Agreements,  except  such as have been,  or will have been  obtained or
         received prior to the Time of Delivery;

                (j) The Trust is not,  and after  giving  effect to the offering
         and sale of the Securities will not be, an "investment  company", or an
         entity  "controlled"  by an  "investment  company",  as such  terms are
         defined in the United States Investment Company Act of 1940, as amended
         (the "Investment Company Act");

                (k)  Neither   the   Guarantor   nor  any  of  its   Significant
         Subsidiaries  is in violation of its  Certificate of  Incorporation  or
         By-laws or in default in the  performance or observance of any material
         obligation,   agreement,   covenant  or  condition   contained  in  any
         indenture,  mortgage,  deed of trust,  loan  agreement,  lease or other
         agreement or instrument to which it is a party or by which it or any of
         its properties may be bound;

                (l) There are no legal or  governmental  proceedings  pending to
         which the Guarantor or any of its  Significant  Subsidiaries is a party
         or of which any  property of the  Guarantor  or any of its  Significant
         Subsidiaries  is the subject  which,  if  determined  adversely  to the
         Guarantor or any of its Significant Subsidiaries, would individually or
         in the  aggregate  have a  material  adverse  effect on the  current or
         future  financial   position,   shareholders'   equity  or  results  of
         operations of the Guarantor and its subsidiaries taken as a whole; and,
         to the  best of the  Guarantor's  knowledge,  no such  proceedings  are
         threatened or contemplated by governmental authorities or threatened by
         others.

         2. Subject to the terms and conditions  herein set forth, the Trust and
the Guarantor agree that the Trust shall issue and sell to the  Purchasers,  and
the Purchasers  agree to purchase from the Trust,  at a purchase price of $1,000
per Security, the Securities.

         3. (a) The Purchasers  hereby  acknowledge and agree with the Guarantor
and the Trust that the Securities have not been and will not be registered under
the Securities Act of 1933 (the "Securities Act") and may not be offered or sold
except  pursuant  to an  exemption  from the  registration  requirements  of the
Securities Act and subject to the restrictions on


                                                    4

<PAGE>



transfer and  redemption  rights of the  Guarantor  under the  Indenture and the
Trust  Agreement.  The  Purchasers  further agree that they have not entered and
will not enter into any contractual arrangement with respect to the distribution
or delivery of the  Securities,  except  with the prior  written  consent of the
Company.

                (b) The Purchasers  hereby  acknowledge and agree that they will
not sell,  transfer,  assign or otherwise  dispose of any Guarantor Common Stock
other than in a broad public  distribution  pursuant to the Registration  Rights
Agreement or Rule 144 under the Securities  Act. In any such  distribution,  the
Purchasers will make reasonable efforts to ensure that no one purchaser or group
of related purchasers acquires more than 3.5% of the outstanding Common Stock of
Guarantor in such distribution.

         4. (a) The Securities to be purchased by the Purchasers  hereunder will
be represented by one or more definitive certificated Securities. The Trust will
deliver the  Securities to the  Purchasers,  against  payment by or on behalf of
such Purchasers of the purchase price therefor by wire transfer of Federal (same
day) funds to an  account  designated  by the Trust or against  payment by or on
behalf of the Purchasers of the purchase price therefor by certified or official
bank  check or checks,  payable to the order of the Trust in Federal  (same day)
funds.  The time and date of such delivery and payment shall be 11:30 a.m.,  New
York  City  time,  on  December  31,  1997 or such  other  time  and date as the
Purchasers  and the  Trust  may agree  upon in  writing.  Such time and date are
herein called the "Time of Delivery".

         (b) The  documents  to be  delivered  at the Time of  Delivery by or on
behalf of the  parties  hereto  pursuant  to  Section 7  hereof,  including  any
additional documents requested by the Purchasers pursuant to Section 7(e) hereof
and the  Securities  will be  delivered  at such time and date at the offices of
Skadden, Arps, Slate, Meagher & Flom LLP ("Skadden Arps"), 919 Third Avenue, New
York, New York 10022 (the "Closing Location"),  all at the Time of Delivery. For
the purposes of this Section 4, "New York  Business Day" shall mean each Monday,
Tuesday,  Wednesday,  Thursday  and Friday  which is not a day on which  banking
institutions  in New  York  are  generally  authorized  or  obligated  by law or
executive order to close.

         5. The Guarantor  and the Trust  jointly and  severally  agree with the
Purchasers:

                (a) Not to have the Trust be or become, at any time prior to the
         expiration  of three  years  after the Time of  Delivery,  an  open-end
         investment  company,  unit  investment  trust,   closed-end  investment
         company or face-amount certificate company that is or is required to be
         registered under Section 8 of the Investment Company Act;

                (b) At any time when the  Guarantor is not subject to Section 13
         or 15(d) of the  Exchange  Act and prior to two years  from the Time of
         Delivery,  for  the  benefit  of the  holders  from  time  to  time  of
         Securities,  to furnish at its  expense,  upon  request,  to holders of
         Securities information (the "Additional Issuer Information") satisfying
         the  requirements  of  subsection  (d)(4)(i)  of Rule  144A  under  the
         Securities Act;

                (c) To make  available to the holders of the  Securities as soon
         as  practicable  after the end of each  fiscal  year an  annual  report
         (including  a balance  sheet and  statements  of income,  shareholders'
         equity  and  cash  flows  of  the   Guarantor   and  its   consolidated
         subsidiaries  certified by independent public accountants) and, as soon
         as  practicable  after the end of each of the first  three  quarters of
         each fiscal year  (beginning  with the fiscal  quarter ending after the
         date  hereof),   consolidated  summary  financial  information  of  the
         Guarantor and its subsidiaries for such quarter in reasonable detail;


                                                    5

<PAGE>




                (d) During a period of five years from the date hereof,  to make
         available  to  you  copies  of  all  reports  or  other  communications
         (financial or other) furnished to shareholders of the Guarantor, and to
         make  available  to the  Purchasers  (i) as soon as they are  generally
         available,  copies of any reports and financial statements furnished to
         or filed with the  Commission or any  securities  exchange on which the
         Securities or any class of  securities of the Guarantor is listed;  and
         (ii) such additional  information concerning the business and financial
         condition  of the  Guarantor  as the  Purchasers  may from time to time
         reasonably  request (such financial  statements to be on a consolidated
         basis to the extent the accounts of the Guarantor and its  subsidiaries
         are consolidated in reports furnished to its shareholders  generally or
         to the Commission;

                (e) During the period of two years  after the Time of  Delivery,
         the Guarantor will not, and will not permit any of its "affiliates" (as
         defined  in Rule 144 under the  Securities  Act) to,  resell any of the
         Securities or  Subordinated  Debentures  which  constitute  "restricted
         securities"  under Rule 144 that have been  reacquired  by any of them;
         and

                (f) To  issue  the  Guarantee  and the  Subordinated  Debentures
         concurrently  with the issue and sale of the Securities as contemplated
         herein.

         6. The Guarantor and the Trust jointly and severally covenant and agree
with the  Purchasers  that the  Guarantor  and the Trust will pay or cause to be
paid the  following:  (i) the cost of producing  this  Agreement,  any Guarantor
Agreement,  closing documents (including any compilations thereof) and any other
documents in connection  with the offering,  purchase,  sale and delivery of the
Securities;  (ii) the cost of preparing the  certificates for the Securities and
the Subordinated  Debentures;  (iii) the fees and expenses of the Trustees,  the
Guarantee Trustee and the Debenture  Trustee and any agent of the Trustees,  the
Guarantee  Trustee and the Debenture  Trustee and the fees and  disbursements of
counsel  for the  Trustees  in  connection  with  the  Trust  Agreement  and the
Securities,  counsel for the Guarantee  Trustee in connection with the Guarantee
and counsel for the Debenture  Trustee in connection  with the Indenture and the
Subordinated  Debentures;  and (iv) all other costs and expenses incident to the
performance of its obligations  hereunder  which are not otherwise  specifically
provided  for in this  Section.  It is  understood,  however,  that,  except  as
provided  in this  Section,  the  Purchasers  will pay all of its own  costs and
expenses, including the fees of its counsel.

         7. The  obligations of the Purchasers to purchase the Securities  shall
be subject to the accuracy of the  representations and warranties on the part of
the Guarantor and the Trust contained  herein as of the date hereof and the Time
of Delivery,  to the accuracy of the  statements  of the Guarantor and the Trust
made in any certificates  pursuant to the provisions  hereof, to the performance
by each of the Guarantor and the Trust of its obligations  hereunder and (unless
delivery is not required  until a subsequent  date) to the following  additional
conditions:

                (a) Robert C. Walker,  Senior Vice President and General Counsel
         of the Guarantor and the Trust, shall have furnished to you his written
         opinion,  dated on a date not more  than  five New York  Business  Days
         after the Time of Delivery, in form and substance  satisfactory to you,
         to the effect that:

                    (i) Each of the Guarantor and the Principal  Subsidiary  has
                been duly  incorporated and is validly existing as a corporation
                in good  standing  under the laws of the  State of  Connecticut,
                with  corporate  power and authority to own its  properties  and
                conduct its business as described in the Exchange Act Reports;


                                                    6

<PAGE>




                   (ii) The Guarantor has an  authorized  capitalization  as set
                forth in the Exchange Act Reports;  and all of the issued shares
                of capital stock of the Principal  Subsidiary have been duly and
                validly   authorized   and   issued   and  are  fully  paid  and
                non-assessable and (except for directors' qualifying shares) are
                owned,  to the best of such  counsel's  knowledge,  directly  or
                indirectly  by the  Guarantor,  free  and  clear  of all  liens,
                encumbrances, equities or claims;

                  (iii) To the best of such  counsel's  knowledge and other than
                as set  forth in  Exchange  Act  Reports,  there are no legal or
                governmental  proceedings  pending to which the Guarantor or any
                of its  Significant  Subsidiaries  is a party  or of  which  any
                property of the Guarantor or any of its Significant Subsidiaries
                is the subject which,  if determined  adversely to the Guarantor
                or any of its Significant Subsidiaries, could individually or in
                the aggregate  have a material  adverse effect on the current or
                future consolidated financial position,  shareholders' equity or
                results of  operations  of the  Guarantor  and its  subsidiaries
                taken as a whole; and, to the best of such counsel's  knowledge,
                no  such   proceedings   are  threatened  or   contemplated   by
                governmental authorities or threatened by others;

                   (iv) This  Agreement has been duly  authorized,  executed and
                delivered by the Guarantor and the Trust;

                    (v) The Guarantee,  the Trust  Agreement,  the Indenture and
                the   Registration   Rights   Agreement   have  each  been  duly
                authorized,  executed and delivered by the Guarantor,  and, when
                validly  authorized,  executed and  delivered  by the  Guarantee
                Trustee in the case of the Guarantee,  when validly  authorized,
                executed,  and delivered by the Debenture Trustee in the case of
                the  Indenture,  and  when  validly  authorized,   executed  and
                delivered  by the  Issuer  Trustees  in the  case  of the  Trust
                Agreement, will constitute valid and legally binding instruments
                and  obligations  of  the  Guarantor   enforceable  against  the
                Guarantor,  in accordance with their respective terms,  subject,
                as to enforcement, to bankruptcy, insolvency, reorganization and
                other laws of general  applicability  relating  to or  affecting
                creditors' rights and to general equity principles;

                   (vi)  The  Subordinated   Debentures,   when  duly  executed,
                  authenticated  and issued in accordance with the Indenture and
                  delivered and paid for in accordance with this Agreement, will
                  be valid and legally  binding  obligations  of the  Guarantor,
                  enforceable  in accordance  with their terms,  subject,  as to
                  enforcement,   to  bankruptcy,   insolvency,   reorganization,
                  moratorium and other laws of general applicability relating to
                  or  affecting   creditors'   rights  and  to  general   equity
                  principles  (regardless  of  whether  such  enforceability  is
                  considered  in a proceeding  in equity or at law) and entitled
                  to the benefits provided by the Indenture;

                  (vii) The issuance by the  Guarantor of the  Guarantee and the
                Subordinated  Debentures,  the  compliance by the Guarantor with
                all of the  provisions  of  this  Agreement  and  the  Guarantor
                Agreements,  the  execution,  delivery  and  performance  by the
                Guarantor of this Agreement and the Guarantor Agreements and the
                consummation of the transactions herein and therein contemplated
                will not conflict with or result in a breach or violation of any
                of the material  terms or provisions of, or constitute a default
                under, any indenture, mortgage, deed of trust, loan agreement or
                other agreement or instrument known to such counsel to which the
                Guarantor or any of its  Significant  Subsidiaries is a party or
                by


                                                    7

<PAGE>



                which the Guarantor or any of its  Significant  Subsidiaries  is
                bound or to which any of the property or assets of the Guarantor
                or any of its Significant Subsidiaries is subject, nor will such
                actions  result  in  any  violation  of  the  provisions  of the
                Articles of  Incorporation  or By-Laws of the  Guarantor  or any
                statute or any order,  rule or regulation  known to such counsel
                of any court or governmental  agency or body having jurisdiction
                over the Guarantor or any of its Significant Subsidiaries or any
                of their properties;

                  (viii)   No   consent,   approval,    authorization,    order,
                registration   or   qualification   of  or  with  any  court  or
                governmental agency or body is required of the Guarantor for the
                consummation by the Guarantor of the  transactions  contemplated
                by this Agreement or the Guarantor Agreements;

                   (ix)  Neither  the  Guarantor  nor  any  of  its  Significant
                Subsidiaries is in violation of its Certificate of Incorporation
                or By-laws or in default in the performance or observance of any
                material obligation,  agreement, covenant or condition contained
                in any contract,  indenture,  mortgage,  loan  agreement,  note,
                lease or other  instrument to which it is a party or by which it
                or any of its properties may be bound;

                    (x) The  Exchange  Act  Reports  (other  than the  financial
                statements  and  related  schedules  and  other  financial  data
                therein, as to which such counsel need express no opinion), when
                they were filed with the Commission,  complied as to form in all
                material respects with the requirements of the Exchange Act, and
                the rules and regulations of the Commission thereunder; and such
                counsel  has no reason to  believe  that any of such  documents,
                when they  were so filed,  contained  an untrue  statement  of a
                material fact or omitted to state a material  fact  necessary in
                order  to make  the  statements  therein,  in the  light  of the
                circumstances  under  which  they were made when such  documents
                were so filed, not misleading;

                   (xi) The offer,  sale and delivery of the  Securities and the
                Subordinated  Debentures  in the  manner  contemplated  by  this
                Agreement do not require  registration under the Securities Act;
                and the Trust Agreement,  the Guarantee and the Indenture do not
                require  qualification under the Trust Indenture Act of 1939, as
                amended; and

                  (xii)  The  Trust  is not,  and  after  giving  effect  to the
                offering and sale of the Securities  will not be, an "investment
                company" or an entity  "controlled" by an "investment  company",
                as such terms are defined in the Investment Company Act.

                Such  opinion  of Robert C.  Walker  may be limited to New York,
         Connecticut,  Delaware  and Federal  law.  To the extent such  opinions
         involve matters  governed by New York law, such counsel may assume that
         there are no differences  between New York Law and Connecticut  law. In
         giving such  opinions,  such  counsel may also rely,  as to all matters
         governed  by the laws of  jurisdictions  in which  such  counsel is not
         qualified,  upon  opinions  of other  counsel,  who  shall  be  counsel
         satisfactory to counsel for the  Purchasers,  in which case the opinion
         shall state that he believes  you and they are entitled to rely on such
         opinions.



                                                    8

<PAGE>



                (b) You shall receive not later than five New York Business Days
         from the Time of Delivery the opinion of Skadden Arps, special Delaware
         Counsel for the Trust and the Guarantor, to the effect that:

                    (i) The Trust has been duly created and is validly  existing
                as a business trust in good standing under the Delaware Business
                Trust  Act and,  under  the  Trust  Agreement  and the  Delaware
                Business Trust Act, has the trust power and authority to own its
                properties  and conduct its  business,  all as  described in the
                Trust Agreement,  and all filings required under the laws of the
                State  of  Delaware  with  respect  to the  creation  and  valid
                existence of the Trust as a business trust have been made;

                   (ii) The Trust Agreement, when duly authorized,  executed and
                delivered  by the  Guarantor,  the  Property  Trustee,  and  the
                Delaware  Trustee and when duly  executed  and  delivered by the
                Administrative  Trustee,  will  constitute  a valid and  binding
                obligation of the Guarantor and the Administrative Trustees, and
                is  enforceable  against  the  Guarantor  and the  Trustees,  in
                accordance  with its terms,  and the terms of the  Securities as
                set  forth  in the  Trust  Agreement,  to the  extent  they  are
                obligations of the Trust,  are valid and binding  obligations of
                the Trust in accordance  with the terms of the Trust  Agreement,
                all  subject  to the  effect  upon the  Trust  Agreement  of (a)
                bankruptcy,  insolvency,  reorganization,  moratorium  or  other
                similar laws now or hereafter in effect  relating to  creditors'
                rights   generally,   and  (b)  general   principles  of  equity
                (regardless of whether enforcement is considered in a proceeding
                in equity or at law) and except to the extent that the rights to
                indemnity and contribution  contained  therein may be limited by
                state securities laws or the public policy underlying such laws;

                  (iii)  Under the Trust  Agreement  and the  Delaware  Business
                Trust Act,  the Trust has the trust power and  authority  to (a)
                execute  and  deliver   this   Agreement   and  to  perform  its
                obligations under this Agreement,  and (b) issue and perform its
                obligations under the Securities and the Common Securities;

                   (iv)  Under the Trust  Agreement  and the  Delaware  Business
                Trust  Act,  the  execution  and  delivery  by the Trust of this
                Agreement and the  performance  by the Trust of its  obligations
                thereunder  have been duly  authorized  by all  necessary  trust
                action on the part of the Trust;

                    (v) The Securities have been duly and validly  authorized by
                the Trust  Agreement,  and,  when issued and  delivered  against
                payment  therefor as provided  herein,  will be duly and validly
                issued  and,  subject to the  qualifications  set forth  herein,
                fully paid and non-assessable  undivided beneficial interests in
                the  assets of the  Trust;  under the  Trust  Agreement  and the
                Delaware  Business  Trust Act, the issuance of the Securities is
                not  subject  to  preemptive  or  other  similar   rights;   the
                Securities   will  have  the  rights  set  forth  in  the  Trust
                Agreement;  the  Securityholders,  as  beneficial  owners of the
                Trust,  will be  entitled  to the same  limitation  of  personal
                liability  extended to stockholders of private  corporations for
                profit organized under the General  Corporation Law of the State
                of  Delaware;  provided  that  such  counsel  may note  that the
                Securityholders   may  be  obligated,   pursuant  to  the  Trust
                Agreement,   to  (a)  provide   indemnity   and/or  security  in
                connection  with and pay taxes or  governmental  charges arising
                from transfers or exchanges of Capital  Securities  Certificates
                (as  defined  in  the  Trust  Agreement)  and  the  issuance  of
                replacement Capital Securities Certificates and (b) provide


                                                    9

<PAGE>



                security  and  indemnity  in  connection  with  requests  of  or
                directions  to the  Property  Trustee  (as  defined in the Trust
                Agreement)  to exercise its rights and remedies  under the Trust
                Agreement;

                   (vi)  The  Common  Securities  have  been  duly  and  validly
                authorized by the Trust Agreement; under the Trust Agreement and
                the  Delaware  Business  Trust Act,  the  issuance of the Common
                Securities is not subject to preemptive or other similar rights;

                  (vii) This  Agreement has been duly  authorized,  executed and
                delivered by the Trust;

                  (viii)  The issue and sale of the  Securities  and the  Common
                Securities  by the Trust,  the  execution  and  delivery of this
                Agreement by the Trust,  the compliance by the Trust with all of
                the  provisions  of the  Securities,  and  this  Agreement,  the
                purchase  by the Trust of the  Subordinated  Debentures  and the
                consummation of the transactions herein and therein contemplated
                do not violate (a) the Trust  Agreement  or the  Certificate  of
                Trust of the Trust, or (b) any Applicable Delaware Law;

                   (ix) Based on such  counsel's  review of Applicable  Delaware
                Laws,  no  Governmental  Delaware  Approval  which  has not been
                obtained  or  taken  and is not in  full  force  and  effect  is
                required to  authorize  or is required  in  connection  with the
                execution or delivery by the Trust of the Purchase  Agreement or
                the  performance by the Trust of the  transactions  contemplated
                thereby except that such counsel need not express any opinion in
                this paragraph,  however, as to any Governmental Approvals which
                may be required under state securities of "blue sky" laws.

                In giving such opinion, Skadden Arps may state that (a) the term
         "Applicable  Delaware  Laws"  means only the  Delaware  Trust Act,  the
         General  Corporation Law of the State of Delaware and those laws, rules
         and regulations of the State of Delaware which, in its experience,  are
         ordinarily  applicable to transactions of the type  contemplated by the
         Purchase  Agreement   (excluding  those  laws,  rules  and  regulations
         relating  specifically to insurance  holding  companies);  (b) the term
         "Delaware  Governmental  Authorities"  means any Delaware  legislative,
         judicial,  administrative or regulatory body under Applicable Laws; (c)
         the term "Delaware Governmental Approval" means any consent,  approval,
         license,  authorization  or validation of, or filing,  qualification or
         registration  with,  any Delaware  Governmental  Authority  pursuant to
         Applicable  Laws. In giving such opinion,  Skadden Arps may rely, as to
         all matters governed by the laws of jurisdictions in which such counsel
         is not qualified,  upon opinions of other counsel, who shall be counsel
         satisfactory to counsel for the  Purchasers,  in which case the opinion
         shall state that they believe you and they are entitled to rely on such
         opinions.

                (c) Skadden Arps,  special tax counsel for the Guarantor and the
         Trust, shall furnish to you their written opinion, dated not later than
         five New York  Business  Days after the Time of  Delivery,  in form and
         substance satisfactory to you, to the effect that:

                    (i) The Trust will be  classified as a grantor trust and not
                as an  association  taxable as a  corporation  for United States
                federal income tax purposes.



                                                    10

<PAGE>



                   (ii)  The  Subordinated  Debentures  will be  classified  for
                United States federal income tax purposes as indebtedness of the
                Company.

                (d) Prior to the Time of Delivery,  the  Guarantor and the Trust
         shall have furnished to you such further information,  certificates and
         documents as you may reasonably request.

                (e) (i) There has not been any  material  adverse  change in, or
         any  adverse  development  which  materially  affects,   the  business,
         properties  or  financial  condition  or results of  operations  of the
         Guarantor and its  subsidiaries  taken as a whole since the date hereof
         otherwise than as set forth or contemplated  herein, and (ii) since the
         date hereof  there shall not have been any change in the capital  stock
         or  long-term  debt  of  the  Guarantor  or  any  of  its   Significant
         Subsidiaries or any change, or any development  involving a prospective
         change,  in or affecting  the general  affairs,  management,  financial
         position,   shareholders'  equity  or  results  of  operations  of  the
         Guarantor and its subsidiaries taken as a whole,  otherwise than as set
         forth or  contemplated  herein,  the effect of which,  in any such case
         described in Clause (i) or (ii),  is in the judgment of the  Purchasers
         so material and adverse as to make it  impracticable  or inadvisable to
         proceed  with the  offering or the  delivery of the  Securities  on the
         terms and in the manner contemplated herein;

                (f) On or  after  the  date  hereof  and  prior  to the  Time of
         Delivery,  there shall not have  occurred any of the  following:  (i) a
         suspension or material limitation in trading in securities generally on
         the New York Stock Exchange;  (ii) a suspension or material  limitation
         in  trading  in the  Guarantor's  securities  on  the  New  York  Stock
         Exchange,  (iii) a general  moratorium on commercial banking activities
         declared by either Federal, New York State or Connecticut  authorities;
         or (iv) the outbreak or escalation of hostilities  involving the United
         States or the declaration by the United States of a national  emergency
         or war, if the effect of any such event  specified  in this clause (iv)
         in the judgment of the Purchasers makes it impracticable or inadvisable
         to proceed with the offering or the delivery of the  Securities  on the
         terms and in the manner contemplated herein;

                (g) The  Guarantor  and the Trust  shall have  furnished  to you
         certificates of the Guarantor and the Trust, signed, in the case of the
         Guarantor,  by the Chief Executive  Officer,  the President or a Senior
         Executive  Vice  President  of  the  Guarantor  and  by  the  principal
         accounting or financial  officer of the  Guarantor,  and in the case of
         the Trust, by an Administrative Trustee, dated the Time of Delivery, as
         to the accuracy of the  representations and warranties of the Guarantor
         and the  Trust  herein at and as of such  Time of  Delivery,  as to the
         performance  by the Guarantor and the Trust of all of their  respective
         obligations  hereunder  to be  performed  at or prior  to such  Time of
         Delivery,  and as to such  other  matters  as the  you  may  reasonably
         request.

         8. (a) As of the  Closing,  the  Purchasers  and their  Affiliates  (as
defined in the Exchange  Act) will have no  beneficial  ownership (as defined in
Rule 13d-3  promulgated  under the Exchange Act) of any  securities of Guarantor
other than as a result of the Purchasers' acquisition of the Securities.

                (b) The  Purchasers  hereby agree that, for a period of five (5)
         years from the date hereof,  the Purchasers and their  Affiliates  will
         not:



                                                    11

<PAGE>



                    (i) in any manner acquire, agree to acquire, make any public
                or private  offer or proposal to acquire or announce or disclose
                any intention to make an offer or proposal to acquire,  directly
                or indirectly,  by purchase or otherwise  (except  pursuant to a
                stock split,  stock dividend,  or other pro rata distribution by
                Guarantor to holders of any class of its outstanding  securities
                entitled to vote generally in the election of directors ("Voting
                Securities") or upon conversion of the  Securities),  any Voting
                Securities other than the Securities;

                   (ii)  propose to enter into,  or  announce  or  disclose  any
                intention to propose to enter into, directly or indirectly,  any
                merger,  business  combination or similar transaction  involving
                Guarantor  or  its  Affiliates  or  to  purchase,   directly  or
                indirectly, all or a material portion of the assets of Guarantor
                or any of its Affiliates;

                  (iii) make, or in any way participate, directly or indirectly,
                in any "solicitation" of "proxies" (as such terms are defined or
                used in Regulation  14A of the Exchange Act) to vote, or seek to
                advise or  influence  any person with  respect to the voting of,
                any Voting Securities, or become a "participant" in an "election
                contest" (as such terms are defined or used in Regulation 14A of
                the  Exchange  Act)  relating to the  election of  directors  of
                Guarantor,  or  initiate,  propose or solicit  holders of Voting
                Securities for the approval of any  shareholder  proposal (under
                Rule 14a-8 under the Exchange Act or  otherwise),  provided that
                the  Purchasers  shall  not  be  deemed  to  have  engaged  in a
                "solicitation"  or to have become a "participant"  in accordance
                with this Agreement or by reason of participation in Guarantor's
                solicitation of proxies in connection with any annual or special
                meeting of shareholders of Guarantor;

                   (iv)  form,  join  or in any  way  participate  in a  "group"
                (within the meaning of Section  13(d)(3) of the Exchange Act) or
                otherwise act in concert with any Person, (x) for the purpose of
                circumventing  the  provisions of this  Agreement or (y) for the
                purpose of acquiring, holding, voting or disposing of any Voting
                Securities;

                    (v)  (x)  request  Guarantor  (or its  directors,  officers,
                employees or agents), directly or indirectly, to take any action
                which might require Guarantor or any of its Affiliates to make a
                public  announcement   regarding  the  possibility  of  (A)  the
                acquisition  of  Voting  Securities  by  the  Purchasers,  (B) a
                business  combination,  merger or similar transaction  involving
                the  Purchasers,  on the one hand,  and  Guarantor or any of its
                Affiliates, on the other hand, (C) the sale to the Purchasers of
                all or a material  portion of the assets of  Guarantor or any of
                its  Affiliates,  or (D) the  amendment  or waiver of any of the
                provisions  hereof,  or (y) make any public statement  regarding
                any of the foregoing or with respect to the business, management
                or conduct of Guarantor or its Affiliates;

                   (vi)  deposit  any  Voting  Securities  in a voting  trust or
                subject them to a voting agreement or other agreement of similar
                effect;

                  (vii) arrange,  or participate in the arranging of,  financing
                for the  purchase  of any  Voting  Securities  by any  person or
                entity,  provided  that  the  Purchasers  may,  as part of their
                normal  business  practices  (now  or as  hereinafter  adopted),
                provide  bona  fide  financing  to a third  party so long as the
                effect of such financing would not otherwise  violate any of the
                provisions of this Agreement;


                                                    12

<PAGE>




                  (viii)  participate  in any action by  written  consent of the
                shareholders of Guarantor  unless so requested by the management
                or board of directors of the Guarantor; or

                   (ix)   otherwise   act,  alone  or  in  concert  with  others
                (including by providing financing for another party), to seek or
                offer to control or influence,  in any manner,  the  management,
                Board of Directors or policies of Guarantor,  including, without
                limitation,  by seeking to add or remove any member of the Board
                of Directors of Guarantor.

                (c)  Notwithstanding  the provisions of clause (ii) of paragraph
         (b), the  Purchasers  shall be  permitted to make a proposal  otherwise
         subject  thereto if  another  person or entity has made such a proposal
         and such  proposal has been  publicly  announced,  provided (i) ten New
         York Business  Days have elapsed since the date of public  announcement
         of such other  party's  proposal  and the  Guarantor  has not  publicly
         rejected  such  proposal  and (ii)  the  Purchasers'  proposal  is made
         privately to the Guarantor and is not  publicized by the  Purchasers in
         any manner.  Notwithstanding  the  provisions  of clause  (v)(x)(D)  of
         paragraph  (b),  the  Purchasers  may request an amendment or waiver of
         paragraph  (b),  provided  that  (i) the  Purchasers'  request  is made
         privately to the Chief  Executive  Officer of the Guarantor and (ii) if
         rejected,  no  further  communication  with  respect  thereto  is  made
         publicly  by  the  Purchasers  to  any  person  in  any  manner.  It is
         anticipated  that the  Purchasers  and the Guarantor will be discussing
         and entering  into  various  business  and  contractual  relationships.
         Notwithstanding  the  provisions  of clause (ix) of paragraph  (b), the
         Purchasers  shall be free to (i) discuss  such  relationships  with the
         Guarantor  and to fully assert and protect  their rights  thereunder or
         (ii) meet privately with the Chief Executive Officer and/or Chairman of
         the Board of  Guarantor  to discuss  matters  generally  of interest to
         shareholders other than matters related to control or change of control
         of Guarantor.

                (d) The  Purchasers  agree that they will,  and will cause their
         Affiliates  to, vote any Voting  Securities  of Guarantor in accordance
         with the  recommendation  of the Board of Directors of Guarantor at any
         annual or special meeting or in any action by consent. If the foregoing
         provision is inconsistent  with any law, rule or regulation  applicable
         to Guarantor, such Voting Securities will be voted in proportion to the
         votes of all other holders of Voting Securities.

               (e) The parties hereto  jointly and severally  agree and covenant
          that any breach of this Section 8 by any of them will cause  immediate
          and  irreparable  harm to the other,  for which  there is no  adequate
          remedy at law, and each hereby  acknowledges and consents to the right
          of the other to seek the entry, by a court of competent  jurisdiction,
          of any  temporary,  preliminary  or  permanent  injunction,  or  other
          remedial  relief  which would  arrest or redress any such  breaches of
          this Section 8.

         9. The  respective  agreements,  representations,  warranties and other
statements of the Guarantor  and the Trust and the  Purchasers,  as set forth in
this Agreement or made by or on behalf of them,  respectively,  pursuant to this
Agreement,   shall  remain  in  full  force  and  effect,   regardless   of  any
investigation  (or any statement as to the results thereof) made by or on behalf
of the Purchasers or any controlling person of any Purchasers,  or the Guarantor
and the Trust, or any officer or director or controlling person of the Guarantor
or the Trust, and shall survive delivery of and payment for the Securities.



                                                    13

<PAGE>



         10.  This  Agreement  may be  terminated  by  mutual  agreement  of the
parties, in which event, (i) the Guarantor and the Trust shall not then be under
any  liability or obligation to the  Purchasers  with respect to the  Securities
except as provided in Section 6 hereof and (ii) the Purchasers shall not then be
under  any  liability  or  obligation  to the  Guarantor  with  respect  to this
Agreement except as provided in Section 6 or 8 hereof.

         11. All statements, requests, notices and agreements hereunder shall be
in writing,  and if to the Purchasers  shall be delivered or sent by mail, telex
or facsimile  transmission  to: ERC Life  Reinsurance  Corporation and Employers
Reinsurance  Corporation,  5200 Metcalf,  P.O. Box 2991,  Overland Park,  Kansas
66201-1391,  Attention:  General  Counsel;  and if to the Guarantor or the Trust
shall be delivered or sent by mail or facsimile transmission to HSB Group, Inc.,
One State Street, Hartford,  Connecticut 06102, Attention:  General Counsel. Any
such statements,  requests, notices or agreements shall take effect upon receipt
thereof.

         12.  This  Agreement  shall be binding  upon,  and inure  solely to the
benefit of, the  Purchasers,  the Guarantor  and the Trust and their  respective
successors  and assigns,  and no other  person  shall  acquire or have any right
under or by virtue of this Agreement. No purchaser of any of the Securities from
the  Purchasers  shall be deemed a successor or assign by reason  merely of such
purchase.

         13. Time shall be of the essence of this Agreement.

         14. This  Agreement  shall be governed by and  construed in  accordance
with the laws of the State of New York.

         15.  This  Agreement  may be executed by any one or more of the parties
hereto in any  number of  counterparts,  each of which  shall be deemed to be an
original, but all such respective counterparts shall together constitute one and
the same instrument.


                                                    14

<PAGE>



         If the foregoing is in accordance with your understanding,  please sign
and return to us six counterparts hereof, and upon the acceptance hereof by you,
this letter and such  acceptance  hereof shall  constitute  a binding  agreement
between the Purchasers and the Guarantor and the Trust.


Very truly yours,

HSB CAPITAL II

By:   HSB GROUP, INC.,
      as  Depositor


By:  /s/ Saul L. Basch
     Name: Saul L. Basch
     Title:  Senior Vice President, Treasurer and Chief Financial Officer



HSB GROUP, INC.



By:  /s/ Saul L. Basch_
     Name:  Saul L. Basch
     Title: Senior Vice President, Treasurer and Chief Financial Officer

Accepted as of the date hereof:

EMPLOYERS REINSURANCE CORPORATION


By:/s/ John M. Connelly

ERC LIFE REINSURANCE CORPORATION


By:/s/ John M. Connelly

<PAGE>



                                                 SCHEDULE I

                                                                    Liquidation
                                             Number of              Amount of
                                            Securities              Securities
                                             to be                   to be
        Purchasers                          Purchased               Purchased
        ----------                          -----------            ------------
Employers Reinsurance Corporation.........  180,000                $180,000,000
ERC Life Reinsurance Corporation..........  120,000                 120,000,000
                                            ===========            ============
     
           Total..........................  300,000                $300,000,000
                                            ===========            ============





                                                    16

<PAGE>
                                                              December 30, 1997

                       TERMS OF $300 MILLION CONVERTIBLE SECURITY

A.  Preliminary financial terms

Issuer :            newly created HSB Delaware business trust

Maturity:           20 years

Ranking:            Pari passu with HSB Group Global Floating Rate Junior
                    Subordinated  Debentures,  Series B  (subordinate  to senior
                    indebtedness)

Rate:               7.0% coupon, payable semi-annually

Extension  periods:  Interest may be deferred for up to 10 consecutive  interest
                    periods,  provided  that  during  such period HSB cannot pay
                    dividends  on its common stock or repay debt that ranks pari
                    passu or junior provided that no extension period may extend
                    beyond the stated maturity date.

Redemption:         Upon maturity
                    At option of ERC  (non-transferable  right), (i) upon change
                    in  control  of HSB Group  occurring  within  five  years of
                    issuance, redemption at par plus redemption premium, if any,
                    calculated  in  accordance  with  Schedule  A; (ii) if ERC's
                    purchase of IRI does not close before March 31, 1998;  (iii)
                    if after  good-faith  negotiations and revisions (if any) to
                    the  documentation  in accordance with this Term Sheet,  ERC
                    determines  that  the  Securities  do  not  conform  to  the
                    fundamental  economic  terms  set forth  herein  or  contain
                    provisions that impose material legal or tax consequences or
                    risks  on  ERC  that   could   not  have   been   reasonably
                    anticipated.

Callable:           Upon  change in  control  of  purchaser,  at par
                    "Tax event" (loss of tax  deductibility)
                    After 7 years at par under any circumstances
                    If ERC's purchase of IRI does not close before March 31,
                    1998
                    In the event that HSB vetos a  purchaser  of the convertible
                    securities

Convertibility:     HSB Group common stock at any time, subject to regulatory
                    approval, at conversion price of  $85

B. Standstill Agreement

Term:               5 year term; subject to earlier termination as mutually
                    agreed by the parties

Voting:             Agreement to vote its shares in accordance with
                    recommendation of Board, or if unenforceable in accordance
                    with NYSE policy, then proportionate to voting of 
                    non-affiliated shareholders

Prohibited
activities:         Acquiring additional shares beyond current ownership (need
                    representation on this) and conversion
                    Participating in proxy solicitation/consent solicitation
                    Making  shareholder  proposal
                    Public or private proposal with respect to a business
                    combination, except for private  proposal to HSB  following
                    a public  proposal for business  combination which has not
                    been rejected within 10 business days thereafter by Board of
                    Directors
                    Seeking to add/remove director from board
                    Forming 13D group with other stockholders
                    Making public statements on business management or conduct
                    of HSB
                    Requesting amendment of standstill agreement, other than a
                    non-public request to CEO which, if rejected, may not be
                    followed by a public request

Dispositions of
Convertible:        Rule 144A placement where purchaser agrees to be bound by
                    agreement, subject to HSB right to call at par and to veto
                    the purchaser(s); limit on number of purchasers
                    No registration rights

Disposition of
Common:             Demand registration rights; limits on frequency and number
                    of shares that can be covered; must be in broad public
                    distribution with limit on blocks that can be purchased by
                    third parties; subject to customary hold-backs and 
                    black-outs
<PAGE>


                                   Schedule A
                              (assuming 7% coupon)

     In the event of a change in control of HSB Group  within five years of the
     closing,  if the per share  price paid in the  acquisition  comprising  the
     change in control is below the per share price specified below for the year
     within which the change in control  occurs,  HSB Group must redeem the note
     at the redemption value specified in the following table.

             Minimum                                                    Minimum
             Per share  Premium             Redemption  Redemption      ERC
Redemption   Price      to Par   Par Value  Premium     Value           IRR*
- ----------   -------    -------  ---------  ----------  ----------      -------
Year 1       $92.65     9.00%    $300 M    $ 27,000,000  $327,000,000    16.00%
Year 2        90.95     7.00%     300 M      21,000,000   321,000,000    10.33%
Year 3        89.25     5.00%     300 M      15,000,000   315,000,000     8.53 %
Year 4        87.55     3.00%     300 M       9,000,000   309,000,000     7.67%
Year 5        85.85     1.00%     300 M       3,000,000   303,000,000     7.17%

      *assuming payments at year-end





                                                       Exhibit 4.2

                                 HSB GROUP, INC.



                                       to



                       THE FIRST NATIONAL BANK OF CHICAGO,
                                   as Trustee



                           ---------------------------



                                    INDENTURE


                          Dated as of December 31, 1997


                           ---------------------------



                          7.0% CONVERTIBLE SUBORDINATED
                          DEFERRABLE INTEREST DEBENTURE
                              DUE DECEMBER 31, 2017





<PAGE>



                                                  HSB GROUP, INC.


         Reconciliation  and  tie  between  the  Trust  Indenture  Act  of  1939
(including  cross-references  to  provisions of Section 310 to and including 317
which, pursuant to Section 318(c) of the Trust Indenture Act of 1939, as amended
by the Trust Reform Act of 1990, are a part of and govern the Indenture  whether
or not physically contained therein) and the Indenture, dated as of December 31,
1997.

TRUST INDENTURE ACT SECTION                 INDENTURE SECTION

(ss.) 310 (a) (1), (2) and (5)..............................    6.9
          (a) (3)...........................................    Not Applicable
          (a)(4)............................................    Not Applicable
          (b)...............................................    6.8
          ..................................................    6.10
          (c)...............................................    Not Applicable
(ss.) 311 (a)...............................................    6.13
          (b)...............................................    6.13
          (b) (2)...........................................    7.3(a)
          ..................................................    7.3(a)
(ss.) 312 (a)...............................................    7.1
          ..................................................    7.2(a)
          (b)...............................................    7.2(b)
          (c)...............................................    7.2(c)
(ss.) 313 (a)...............................................    7.3(a)
          (b)...............................................    7.3(b)
          (c)...............................................    7.3(a), 7.3(b)
          (d)...............................................    7.3(c)
(ss.) 314 (a) (1), (2) and (3)..............................    7.4
          (a) (4)...........................................    10.5
          (b)...............................................    Not Applicable
          (c)(1)............................................    1.2
          (c)(2)............................................    1.2
          (c)(3)............................................    Not Applicable
          (d)...............................................    Not Applicable
          (e)...............................................    1.2
          (f)...............................................    Not Applicable
(ss.) 315 (a)...............................................    6.1(a)
          (b)...............................................    6.2
          ..................................................    7.3(a)
          (c)...............................................    6.1(b)
          (d)...............................................    6.1(c)
          (d)(1)............................................    6.1(a)(1)



<PAGE>



          (d)(2)............................................    6.1(c)(2)
          (d)(3)............................................    6.1(c)(3)
          (e)...............................................    5.14
(ss.) 316 (a)...............................................    1.1
          (a)(1)(A).........................................    5.12
          (a)(1)(B).........................................    5.13
          (a)(2)............................................    Not Applicable
          (b)...............................................    5.8
          (c)...............................................    1.4(f)
(ss.) 317 (a)(1)............................................    5.3
          (a)(2)............................................    5.4
          (b)...............................................    10.3
(ss.) 318 (a)...............................................    1.7

- --------------------

Note:     This reconciliation and tie shall not, for any purpose, be deemed to 
          be a part of the Indenture.



<PAGE>



                                TABLE OF CONTENTS
                                                                        Page



                                    ARTICLE I
              DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION..... 1

SECTION 1.1.  Definitions................................................  1
SECTION 1.2.  Compliance Certificate and Opinions........................ 10
SECTION 1.3.  Forms of Documents Delivered to Trustee.................... 11
SECTION 1.4.  Acts of Holders............................................ 11
SECTION 1.5.  Notices, Etc. to Trustee and Corporation................... 13
SECTION 1.6.  Notice to Holders; Waiver.................................. 14
SECTION 1.7.  Conflict with Trust Indenture Act.......................... 14
SECTION 1.8.  Effect of Headings and Table of Contents................... 14
SECTION 1.9.  Successors and Assigns..................................... 14
SECTION 1.10.  Separability Clause....................................... 15
SECTION 1.11.  Benefits of Indenture..................................... 15
SECTION 1.12.  Governing Law............................................. 15
SECTION 1.13.  Non-Business Days......................................... 15

                          ARTICLE II
       SECURITY FORMS.................................................... 15

SECTION 2.1.  Forms Generally............................................ 15
SECTION 2.2.  Form of Face of Security................................... 16
SECTION 2.3.  Form of Reverse of Security................................ 19
SECTION 2.4.  Restrictive Legends........................................ 21
SECTION 2.5.  Form of Trustee's Certificate of Authentication............ 22

                          ARTICLE III
        THE SECURITIES.................................................... 22

SECTION 3.1.  Title and Terms............................................. 22
SECTION 3.2.  Denominations............................................... 22
SECTION 3.3.  Execution, Authentication and Dating........................ 23
SECTION 3.4.  Temporary Securities........................................ 23
SECTION 3.5.  Registration, Transfer and Exchanges........................ 24
SECTION 3.6.  Mutilated, Destroyed, Lost and Stolen Securities............ 27
SECTION 3.7.  Payment of Interest; Interest Rights Preserved.............. 28
SECTION 3.8.  Persons Deemed Owners....................................... 29
SECTION 3.9.  Cancellation................................................ 30
SECTION 3.10.  Computation of Interest.................................... 30

                             - i -


<PAGE>



 SECTION 3.11.  Deferrals of Interest Payment Dates....................... 30
 SECTION 3.12.  Right of Set-Off.......................................... 31
 SECTION 3.13.  Agreed Tax Treatment...................................... 31
 SECTION 3.14.  Shortening of Stated Maturity............................. 31
 SECTION 3.15.  CUSIP Numbers............................................. 31



                           ARTICLE IV
     SATISFACTION AND DISCHARGE........................................... 32

 SECTION 4.1.  Satisfaction and Discharge of Indenture.................... 32
 SECTION 4.2.  Application of Trust Money................................. 33


                            ARTICLE V
           REMEDIES....................................................... 33

 SECTION 5.1.  Events of Default..............................................33
 SECTION 5.2.  Acceleration of Maturity; Rescission and Annulment.............34
 SECTION 5.3.  Collection of Indebtedness and Suits for Enforcement by 
               Trustee....................................................... 36
 SECTION 5.4.  Trustee May File Proofs of Claim.............................. 36
 SECTION 5.5.  Trustee May Enforce Claim Without Possession of Securities.... 37
 SECTION 5.6.  Application of Money Collected................................ 37
 SECTION 5.7.  Limitation on Suits........................................... 38
 SECTION 5.8.  Unconditional Right of Holders to Receive Principal, Premium
          and Interest; Direct Action by Holders of Capital Securities....... 39
 SECTION 5.9.  Restoration of Rights and Remedies............................ 39
 SECTION 5.10.  Rights and Remedies Cumulative............................... 39
 SECTION 5.11.  Delay or Omission Not Waiver................................. 39
 SECTION 5.12.  Control by Holders........................................... 40
 SECTION 5.13.  Waiver of Past Defaults...................................... 40
 SECTION 5.14.  Undertaking for Costs........................................ 41
 SECTION 5.15.  Waiver of Usury, Stay or Extension Laws...................... 41


                           ARTICLE VI
             THE TRUSTEE..................................................... 41

 SECTION 6.1.  Certain Duties and Responsibilities........................... 41
 SECTION 6.2.  Notice of Defaults............................................ 43
 SECTION 6.3.  Certain Rights of Trustee..................................... 43
 SECTION 6.4.  Not Responsible for Recitals or Issuance of Securities........ 44
 SECTION 6.5.  May Hold Securities........................................... 44

                             - ii -


<PAGE>



 SECTION 6.6.  Money Held in Trust.......................................... 44
 SECTION 6.7.  Compensation and Reimbursement............................... 44
 SECTION 6.8.  Disqualification; Conflicting Interests...................... 45
 SECTION 6.9.  Corporate Trustee Required; Eligibility...................... 45
 SECTION 6.10.  Resignation and Removal; Appointment of Successor........... 46
 SECTION 6.11.  Acceptance of Appointment by Successor...................... 47
 SECTION 6.12.  Merger, Conversion, Consolidation or Succession to Business. 48
 SECTION 6.13.  Preferential Collection of Claims Against Corporation....... 49
 SECTION 6.14.  Appointment of Authenticating Agent......................... 49


                                   ARTICLE VII
       HOLDER'S LISTS AND REPORTS BY TRUSTEE AND CORPORATION................ 50

 SECTION 7.1.  Corporation to Furnish Trustee Names and Addresses of Holders. 50
 SECTION 7.2.  Preservation of Information, Communications to Holders........ 51
 SECTION 7.3.  Reports by Trustee............................................ 51
 SECTION 7.4.  Reports by Corporation........................................ 51



                                  ARTICLE 
           CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE.............. 52

SECTION 8.1.  Corporation May Consolidate, Etc., Only on Certain Terms...... 52
SECTION 8.2.  Successor Corporation Substituted............................. 53


                          ARTICLE IX
                              SUPPLEMENTAL INDENTURES....................... 53

SECTION 9.1.  Supplemental Indentures Without Consent of Holders............ 53
SECTION 9.2.  Supplemental Indentures with Consent of Holders............... 54
SECTION 9.3.  Execution of Supplemental Indentures.......................... 56
SECTION 9.4.  Effect of Supplemental Indentures............................. 56
SECTION 9.5.  Conformity with Trust Indenture Act........................... 56
SECTION 9.6.  Reference in Securities to Supplemental Indentures............ 56



                            - iii -


<PAGE>



                                    ARTICLE X
                    COVENANTS................................................ 56

SECTION 10.1.  Payment of Principal, Premium and Interest.................... 56
SECTION 10.2.  Maintenance of Office or Agency............................... 57
SECTION 10.3.  Money for Security Payments to be Held in Trust............... 57
SECTION 10.4.  Statement as to Compliance.................................... 59
SECTION 10.5.  Waiver of Certain Covenants................................... 59
SECTION 10.6.  Additional Sums............................................... 59
SECTION 10.7.  Additional Covenants.......................................... 60


                                   ARTICLE XI
           REDEMPTION OF SECURITIES.......................................... 61

SECTION 11.1.  Applicability of This Article................................. 61
SECTION 11.2.  Election to Redeem; Notice to Trustee......................... 61
SECTION 11.3.  Selection of Securities to be Redeemed........................ 61
SECTION 11.4.  Notice of Redemption.......................................... 62
SECTION 11.5.  Deposit of Redemption Price................................... 63
SECTION 11.6.  Payment of Securities Called for Redemption................... 63
SECTION 11.7.  Right of Redemption of Securities Initially Issued to an 
               Issuer Trust.................................................. 63
SECTION 11.8.  Mandatory Redemption Provisions............................... 64

                          ARTICLE XII
       RANKING; SUBORDINATION OF SECURITIES.................................. 65

SECTION 12.1.  Ranking; Securities Subordinate to Senior Indebtedness....... 65
SECTION 12.2.  No Payment When Senior Indebtedness in Default; Payment
         Over of Proceeds Upon Dissolution, Etc............................. 65
SECTION 12.3.  Payment Permitted If No Default.............................. 67
SECTION 12.4.  Subrogation to Rights of Holders of Senior Indebtedness...... 67
SECTION 12.5.  Provisions Solely to Define Relative Rights.................. 68
SECTION 12.6.  Trustee to Effectuate Subordination.......................... 68
SECTION 12.7.  No Waiver of Subordination Provisions........................ 68
SECTION 12.8.  Notice to Trustee............................................ 69
SECTION 12.9.  Reliance on Judicial Order or Certificate of Liquidating 
               Agent........................................................ 70
SECTION 12.10.  Trustee Not Fiduciary for Holders of Senior Indebtedness.... 70
SECTION 12.11.  Rights of Trustee as Holder of Senior Indebtedness;
         Preservation of Trustee's Rights................................... 70
SECTION 12.12.  Article Applicable to Paying Agents......................... 70
SECTION 12.13.  Certain Conversions or Exchanges Deemed Payment............. 70


                            - iv -


<PAGE>



                          ARTICLE XIII
      CONVERSION OF SECURITIES............................................... 71

 SECTION 13.1.  Conversion Rights............................................ 71
 SECTION 13.2.  Conversion Procedures........................................ 71
 SECTION 13.3.  Conversion Price Adjustments................................. 74
 SECTION 13.4.  Notice of Adjustments of Conversion Price.................... 77
 SECTION 13.5.  Prior Notice of Certain Events............................... 77
 SECTION 13.6.  Dividend or Interest Reinvestment Plans...................... 78
 SECTION 13.7.  Certain Additional Rights.................................... 78
 SECTION 13.8.  Restrictions on Common Stock Issuable Upon Conversion........ 79
 SECTION 13.9.  Trustee Not Responsible for Determining Conversion Price or
          Adjustments........................................................ 79

                           ARTICLE XIV
              EXPENSES....................................................... 80

 SECTION 14.1.  Payment of Expenses by the Corporation....................... 80
 SECTION 14.2.  Term of Agreement............................................ 80
 SECTION 14.3.  Waiver of Notice............................................. 81
 SECTION 14.4.  No Impairment................................................ 81
 SECTION 14.5.  Enforcement.................................................. 81
 SECTION 14.6.  Subrogation.................................................. 81
 SECTION 14.7.  Amendment.................................................... 82



                              - v -


<PAGE>




         INDENTURE,  dated as of December 31, 1997,  between HSB GROUP,  INC., a
Connecticut corporation (the "Corporation"),  having its principal office at One
State Street, Hartford,  Connecticut,  and The First National Bank of Chicago, a
national banking association, as Trustee (the "Trustee").


                           Recitals of the Corporation

         Whereas, the Corporation has duly authorized the execution and delivery
of  this  Indenture  to  provide  for  the  issuance  of  its  7.0%  Convertible
Subordinated  Deferrable Interest Debentures (the "Securities") of substantially
the tenor hereinafter  provided,  including  Securities issued to evidence loans
made to the Corporation with the proceeds from the issuance by HSB Capital II, a
Delaware business trust (the "Issuer Trust") of preferred  undivided  beneficial
interests  in the assets of such Issuer  Trust (the  "Capital  Securities")  and
common  undivided  interests  in the assets of such  Issuer  Trust (the  "Common
Securities"),  and to provide the terms and conditions upon which the Securities
are to be authenticated, issued and delivered; and

         Whereas,  all things necessary to make this Indenture a valid agreement
of the Corporation, in accordance with its terms, have been done.

         Now Therefore, this Indenture Witnesseth:

         For  and in  consideration  of the  premises  and the  purchase  of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities, as follows:


                                    ARTICLE I

             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

         SECTION 1.1.  Definitions.

         For all  purposes  of this  Indenture,  except as  otherwise  expressly
provided or unless the context otherwise requires:

                  (a) The  terms  defined  in this  Article  have  the  meanings
         assigned to them in this Article, and include the plural as well as the
         singular;

                  (b) All other  terms used herein that are defined in the Trust
         Indenture  Act,  either  directly  or by  reference  therein,  have the
         meanings assigned to them therein;


                                                         - 1 -


<PAGE>



               (c) The words  "include",  "includes"  and  "including"  shall be
          deemed to be followed by the phrase "without limitation";

               (d) All  accounting  terms not otherwise  defined herein have the
          meanings  assigned  to  them in  accordance  with  generally  accepted
          accounting principles;

               (e) Whenever the context may require,  any gender shall be deemed
          to include the others;

               (f) Unless the context  otherwise  requires,  any reference to an
          "Article"  or a  "Section"  refers to an Article or a Section,  as the
          case may be, of this Indenture; and

               (g) The words  "hereby",  "herein",  "hereof" and "hereunder" and
          other words of similar  import refer to this  Indenture as a whole and
          not to any particular Article, Section or other subdivision.

         "Act" when used with  respect to any Holder has the meaning  specified
in Section 1.4.

         "Additional Sums" has the meaning specified in Section 10.6.

         "Additional  Taxes"  means  any  additional  taxes,  duties  and  other
governmental  charges to which an Issuer  Trust has become  subject from time to
time as a result of a Tax Event.

         "Affiliate" of any specified  Person means any other Person directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control"  when used with  respect to any  specified  Person  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

         "Authenticating  Agent"  means any  Person  authorized  by the  Trustee
pursuant  to Section  6.14 to act on behalf of the Trustee to  authenticate  the
Securities.

         "Bankruptcy  Code"  means  Title 11 of the  United  States  Code or any
successor statute thereto, in each case as amended from time to time.

         "Board of Directors" means the board of directors of the Corporation or
the  Executive  Committee of the board of directors of the  Corporation  (or any
other committee of the board of directors of the Corporation  performing similar
functions)  or  a  committee  designated  by  the  board  of  directors  of  the
Corporation (or such  committee),  comprised of two or more members of the board
of directors of the Corporation or officers of the Corporation, or both.

         "Board  Resolution"  means  a copy  of a  resolution  certified  by the
Corporate  Secretary or an Assistant  Secretary of the  Corporation to have been
duly adopted by the Board of Directors,

                                                         - 2 -


<PAGE>



or officers of the  Corporation to which authority to act on behalf of the Board
of Directors has been delegated,  and to be in full force and effect on the date
of such certification, and delivered to the Trustee.

         "Business Day" means any day other than (i) a Saturday or Sunday,  (ii)
a day on which banking  institutions  in The City of New York are  authorized or
required by law or executive order to remain closed, or (iii) a day on which the
Corporate Trust Office of the Trustee, or the Corporate Trust Office (as defined
in the related Trust  Agreement) of the Property Trustee or the Delaware Trustee
under the related Trust Agreement, is closed for business.

          "Capital Securities" has the meaning specified in the first recital of
this Indenture.

          "Change of Control"  shall mean an  acquisition of greater than 50% of
the outstanding  voting  securities of either HSB Group,  Inc. or Employers
Reinsurance Corporation, as the case may be.

         "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Exchange Act, or if at any time after the
execution of this  instrument  such  Securities  and Exchange  Commission is not
existing and performing the duties now assigned to it under the Trust  Indenture
Act, then the body performing such duties on such date.

          "Common  Securities" has the meaning specified in the first recital of
this Indenture.

         "Common Stock" means common stock, no par value, of the Corporation.

         "Conversion Agent" has the meaning specified in Section 13.2.

         "Conversion Date" has the meaning specified in Section 13.2.

         "Conversion Price" has the meaning specified in Section 13.1.

         "Corporate  Trust Office" means the principal  office of the Trustee at
which at any particular time its corporate trust business shall be administered.

         "corporation"  includes a corporation,  association,  company,  limited
liability company, joint-stock company or business trust.

         "Corporation"  means the Person named as the "Corporation" in the first
paragraph of this  instrument  until a successor  corporation  shall have become
such pursuant to the  applicable  provisions of this  Indenture,  and thereafter
"Corporation" shall mean such successor corporation.


                                                         - 3 -


<PAGE>



         "Corporation  Request" and "Corporation  Order" mean,  respectively,  a
written  request  or order  signed in the name of the  Corporation  by its Chief
Executive  Officer,  its  President,  one of its Senior Vice  Presidents or Vice
Presidents  and by its  Chief  Financial  Officer,  Treasurer,  Controller,  its
Corporate Secretary or an Assistant Secretary, and delivered to the Trustee.

         "Current  Market Price" means for any day the last reported sale price,
regular  way,  on such day of Common  Stock,  or, if no sale takes place on such
day,  the  average of the  reported  closing  bid and asked  prices on such day,
regular way, in either case as reported on the NYSE Composite Transactions Tape,
or, if the Common Stock is not listed or admitted to trading on the NYSE on such
day, on the principal national  securities exchange on which the Common Stock is
listed or admitted to trading,  exchange,  or the Nasdaq National Market, or, if
the Common Stock is not quoted or admitted to trading on such quotation  system,
on the  principal  quotation  system on which the Common  Stock may be listed or
admitted  to  trading or quoted,  or, if not  listed or  admitted  to trading or
quoted on any national  securities  exchange or quotation system, the average of
the closing  bid and asked  prices of the Common  Stock in the  over-the-counter
market on the day in  question  as reported  by the  National  Quotation  Bureau
Incorporated,  or a similar generally accepted reporting service,  or, if not so
available in such manner,  as  furnished by any NYSE member firm  selected  from
time to time by the Board od Directors  for that purpose or, if not so available
in such manner, as otherwise determined in good faith by the Board of Directors.

         "Debt" means,  with respect to any Corporation,  whether recourse is to
all or a portion of the assets of such Corporation and whether or not contingent
and without  duplication,  (i) every  obligation of such  Corporation  for money
borrowed;  (ii)  every  obligation  of  such  Corporation  evidenced  by  bonds,
debentures,  notes or other similar instruments,  including obligations incurred
in connection  with the  acquisition of property,  assets or  businesses;  (iii)
every  reimbursement  obligation of such  Corporation with respect to letters of
credit,  bankers'  acceptances or similar  facilities  issued for the account of
such Corporation; (iv) every obligation of such Corporation issued or assumed as
the  deferred  purchase  price of  property  or services  (but  excluding  trade
accounts  payable  or accrued  liabilities  arising  in the  ordinary  course of
business);  (v) every capital lease  obligation  of such  Corporation;  (vi) all
indebtedness  of the  Corporation,  whether  incurred on or prior to the date of
this  Indenture  or  thereafter  incurred,  for claims in respect of  derivative
products,  including  interest rate, foreign exchange rate and commodity forward
contracts,  options  and  swaps  and  similar  arrangements;   and  (vii)  every
obligation of the type referred to in clauses (i) through (vi) of another Person
and all dividends of another Person the payment of which,  in either case,  such
Corporation  has  guaranteed  or is  responsible  or  liable  for,  directly  or
indirectly, as obligor or otherwise.

         "Defaulted Interest" has the meaning specified in Section 3.7.

         "Delaware  Trustee" means, with respect to any Issuer Trust, the Person
identified as the "Delaware  Trustee" in the related Trust Agreement,  solely in
its capacity as Delaware Trustee of such Issuer Trust under such Trust Agreement
and not in its individual capacity, or its

                                                         - 4 -


<PAGE>



successor  in interest  in such  capacity,  or any  successor  Delaware  trustee
appointed as therein provided.

         "Distributions",  with  respect  to the Trust  Securities  issued by an
Issuer  Trust,  means  amounts  payable in respect of such Trust  Securities  as
provided  in  the  related   Trust   Agreement   and   referred  to  therein  as
"Distributions".

         "Dollar"  or "$" means the  currency  of the  United  States of America
that,  as at the time of payment,  is legal tender for the payment of public and
private debts.

         "Event of Default" has the meaning specified in Article V.

         "Exchange  Act"  means  the  Securities  Exchange  Act of  1934  or any
successor statute thereto, in each case as amended from time to time.

         "Expiration Date" has the meaning specified in Section 1.4.

         "Extension Period" has the meaning specified in Section 3.11.

         "Guarantee  Agreement"  means,  with respect to any Issuer  Trust,  the
Guarantee  Agreement  executed by the Corporation for the benefit of the Holders
of the Capital  Securities issued by such Issuer Trust, as modified,  amended or
supplemented from time to time.

          "Holder"  means a Person in whose name a Security is registered in the
Securities Register.

         "Indenture"  means this instrument as originally  executed or as it may
from  time  to  time  be  supplemented  or  amended  by one or  more  indentures
supplemental hereto entered into pursuant to the applicable provisions hereof.

          "Interest Payment Date" means the Stated Maturity of an installment of
interest on the Securities.

         "Interest  Rate" means the rate of interest  specified or determined as
specified  in the  Security  as  being  the  rate of  interest  payable  on such
Security.

          "Issuer Trust" has the meaning  specified in the first recital of this
Indenture.

         "Maturity"  when used with  respect to any  Security  means the date on
which the principal of such Security or any installment of principal becomes due
and payable as therein or herein provided,  whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.


                                                         - 5 -


<PAGE>



         "Notice of  Conversion"  means the notice  given by a holder of Capital
Securities to the Conversion  Agent  directing the Conversion  Agent to exchange
such Capital  Securities  for  Securities  and to convert such  Securities  into
Common Stock on behalf of such holder.

          "Notice of Default"  means a written  notice of the kind  specified in
Section 5.1(3).

         "Officers'  Certificate"  means  a  certificate  signed  by  its  Chief
Executive  Officer,  the President or a Senior Vice President,  and by the Chief
Financial Officer,  Treasurer or the Corporate Secretary or Assistant Secretary,
of the Corporation and delivered to the Trustee.

         "Opinion of  Counsel"  means a written  opinion of counsel,  who may be
counsel  for  or an  employee  of  the  Corporation  or  any  Affiliate  of  the
Corporation.

         "Original  Issue Date" means the date of issuance  specified as such in
each Security.

         "Outstanding"  means,  when used in reference to any Securities,  as of
the  date  of  determination,   all  Securities  theretofore  authenticated  and
delivered under this Indenture, except:

               (i) Securities  theretofore  canceled by the Trustee or delivered
          to the Trustee for cancellation;

               (ii)  Securities for whose payment money in the necessary  amount
          has been theretofore deposited with the Trustee or any Paying Agent in
          trust for the Holders of such Securities; and

               (iii)  Securities in  substitution  for or in lieu of which other
          Securities  have been  authenticated  and  delivered or that have been
          paid pursuant to Section 3.7, unless proof satisfactory to the Trustee
          is  presented  that any such  Securities  are held by Holders in whose
          hands such Securities are valid,  binding and legal obligations of the
          Corporation;

provided,  however,  that in  determining  whether the Holders of the  requisite
principal  amount of  Outstanding  Securities  have given any  request,  demand,
authorization,  direction, notice, consent or waiver hereunder, Securities owned
by the  Corporation or any other obligor upon the Securities or any Affiliate of
the  Corporation or such other obligor shall be disregarded and deemed not to be
Outstanding,  except that, in determining whether the Trustee shall be protected
in relying upon any such  request,  demand,  authorization,  direction,  notice,
consent or waiver,  only  Securities that the Trustee knows to be so owned shall
be so disregarded.  Securities so owned that have been pledged in good faith may
be regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's  right so to act with respect to such  Securities and that
the pledgee is not the  Corporation  or any other obligor upon the Securities or
any Affiliate of the Corporation or such other obligor. Upon the written request
of the  Trustee,  the  Corporation  shall  furnish to the  Trustee  promptly  an
Officers'  Certificate listing and identifying all Securities,  if any, known by
the  Corporation to be owned or held by or for the account of the Corporation or
any other obligor on the Securities, or any Affiliate of the

                                                         - 6 -


<PAGE>



Corporation  or such obligor,  and subject to the provisions of Section 6.1, the
Trustee  shall be entitled to accept such  Officers'  Certificate  as conclusive
evidence of the facts therein set forth and of the fact that all  Securities not
listed  therein  are  Outstanding  for the  purpose  of any such  determination.
Notwithstanding  anything herein to the contrary,  Securities shall be deemed to
be Outstanding  notwithstanding the ownership by the Corporation or an Affiliate
of any beneficial interest in such Issuer Trust.

         "Paying  Agent"  means the  Trustee  or any  Person  authorized  by the
Corporation  to pay the  principal  of (or  premium,  if any) or interest on, or
other amounts in respect of, any Securities on behalf of the Corporation.

         "Person" means a legal person,  including any individual,  corporation,
estate,  partnership,  joint  venture,  trust,  unincorporated  association,  or
government or any agency or political  subdivision  thereof, or any other entity
of whatever nature.

         "Place of Payment" means, with respect to the Securities, New York, New
York or Chicago,  Illinois,  where the  principal of (and  premium,  if any) and
interest on the Securities are payable.

         "Predecessor  Security" of any particular Security means every previous
Security  evidencing all or a portion of the same debt as that evidenced by such
particular  Security.  For  the  purposes  of  this  definition,   any  security
authenticated  and  delivered  under Section 3.6 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

         "Procedures" has the meaning specified in Section 13.3.

         "Proceeding" has the meaning specified in Section 12.2.

         "Property  Trustee" means, with respect to the Issuer Trust, the Person
identified as the "Property  Trustee" in the related Trust Agreement,  solely in
its capacity as Property Trustee of such Issuer Trust under such Trust Agreement
and  not in its  individual  capacity,  or its  successor  in  interest  in such
capacity, or any successor property trustee appointed as therein provided.

         "Redemption  Date",  when  used  with  respect  to any  Security  to be
redeemed,  means  the date  fixed for such  redemption  by or  pursuant  to this
Indenture or the terms of such Security.

         "Redemption  Price",  when  used with  respect  to any  Security  to be
redeemed,  means  the  price  at  which it is to be  redeemed  pursuant  to this
Indenture or the terms of such Security.

         "Regular Record Date" for the interest  payable on any Interest Payment
Date,  the day that is fifteen days next  preceding  such Interest  Payment Date
(whether or not a Business Day).


                                                         - 7 -


<PAGE>



         "Responsible Officer", when used with respect to the Trustee, means the
chairman or any  vice-chairman  of the board of  directors,  the chairman or any
vice-chairman of the executive committee of the board of directors, the chairman
of the trust committee,  the president,  any vice president,  the secretary, any
assistant secretary,  the treasurer,  any assistant treasurer,  the cashier, any
assistant cashier,  any trust officer or assistant trust officer, the controller
or any  assistant  controller  or any other  officer of the Trustee  customarily
performing  functions  similar to those performed by any of the above designated
officers and also means, with respect to a particular  matter, any other officer
to whom such  matter is  referred  because of such  officer's  knowledge  of and
familiarity with the particular subject.

         "Restricted  Securities"  means all Securities for which it is required
pursuant to Section 2.4 to bear a Restricted Securities Legend.

         "Restricted Securities Legend" has the meaning specified in Section 
2.4.

         "Restricted   Security"  means  each  Security  required  to  bear  the
Restricted Securities Legend.

         "Rights  Plan"  means  a plan  of the  Corporation  providing  for  the
issuance  by the  Corporation  to all  holders  of its  Common  Stock of  rights
entitling the holders  thereof to subscribe for or purchase  shares of any class
or series of capital stock of the Corporation, which rights are (i) deemed to be
transferred  with such shares of Common Stock and (ii) also issued in respect of
future  issuances of such Common Stock,  in each case until the  occurrence of a
specified event or events.

         "Securities  Act"  means the  Securities  Act of 1933 or any  successor
statute thereto, in each case as amended from time to time.

         "Securities Act Legend" means a Restricted Securities Legend.

          "Securities  Register" and "Securities  Registrar" have the respective
meanings specified in Section 3.5.

          "Security" means any debt security  authenticated  and delivered under
this Indenture.

         "Senior  Indebtedness" means the principal of (and premium, if any) and
interest,  if any  (including  interest  accruing  on or after the filing of any
petition in bankruptcy or for reorganization relating to the Corporation whether
or not such claim for post-petition interest is allowed in such proceeding),  on
Debt of the  Corporation,  whether  incurred  on or  prior  to the  date of this
Indenture  or  hereafter  incurred,   unless,  in  the  instrument  creating  or
evidencing the same or pursuant to which the same is outstanding, it is provided
that such  obligations are not superior in right of payment to the Securities or
to other Debt that is pari  passu  with,  or  subordinated  to, the  Securities,
provided,  however,  that Senior Indebtedness shall not be deemed to include (a)
any Debt of the Corporation that, when incurred and without respect to any

                                                         - 8 -


<PAGE>



election under Section 1111(b) of the Bankruptcy Reform Act of 1978, was without
recourse  to the  Corporation,  (b) any  Debt of the  Corporation  to any of its
Subsidiaries,  (c) any Debt of the  Corporation to any Person who is an employee
of the Corporation and (d) any Securities.

         "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 3.7.

         "Stated  Maturity",  when  used with  respect  to any  Security  or any
installment of principal thereof (or premium, if any) or interest thereon, means
the date  specified  pursuant to the terms of such Security as the fixed date on
which the  principal  of such  Security or such  installment  of  principal  (or
premium,  if any) or interest is due and payable,  as such date may be shortened
as provided  pursuant to the terms of such Security and this  Indenture,  in the
case of the Stated Maturity of any Security,  and subject to the deferral of any
such  date  during  any  Extension  Period,  in the case of any  installment  of
interest.

         "Subsidiary"  means a  corporation  more  than  50% of the  outstanding
voting stock of which is owned, directly or indirectly, by the Corporation or by
one or more  other  Subsidiaries,  or by the  Corporation  and one or more other
Subsidiaries.  For purposes of this definition,  "voting stock" means stock that
ordinarily has voting power for the election of directors,  whether at all times
or only so long as no senior  class of stock has such voting  power by reason of
any contingency.

         "Successor  Security" of any  particular  Security means every Security
issued after, and evidencing all or a portion of the same debt as that evidenced
by, such particular Security. For the purposes of this definition,  any Security
authenticated  and  delivered  under Section 3.6 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

         "Tax  Event"  means the  receipt by the  Issuer  Trust of an Opinion of
Counsel  experienced  in such  matters  to the effect  that,  as a result of any
amendment to, or change  (including any announced  proposed change) in, the laws
(or  any  regulations   thereunder)  of  the  United  States  or  any  political
subdivision  or  taxing  authority  thereof  or  therein,  or as a result of any
official  administrative  pronouncement  or judicial  decision  interpreting  or
applying  such laws or  regulations,  which  amendment or change is effective or
which pronouncement or decision is announced on or after the date of issuance of
the Capital Securities of such Issuer Trust, there is more than an insubstantial
risk that (i) such  Issuer  Trust is, or within 90 days of the  delivery of such
Opinion of Counsel will be,  subject to United  States  federal  income tax with
respect  to  income  received  or  accrued  on  the  Securities  issued  by  the
Corporation to such Issuer Trust,  (ii) interest  payable by the  Corporation on
such  Securities  is not, or within 90 days of the  delivery of such  Opinion of
Counsel will not be,  deductible by the  Corporation,  in whole or in part,  for
United States  federal  income tax  purposes,  or (iii) such Issuer Trust is, or
within 90 days of the delivery of such  Opinion of Counsel  will be,  subject to
more than a de  minimis  amount  of other  taxes,  duties or other  governmental
charges.


                                                         - 9 -


<PAGE>



         "Trust  Agreement"  means,  with respect to the Issuer Trust, the trust
agreement or other governing instrument of such Issuer Trust.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed; provided, however, that if
the Trust  Indenture  Act of 1939 is amended after such date,  "Trust  Indenture
Act" means the Trust Indenture Act of 1939 as so amended.

          "Trust  Securities"  means  the  Common  Securities  and  the  Capital
Securities.

         "Trustee"  means  the  Person  named  as the  "Trustee"  in  the  first
paragraph of this instrument,  solely in its capacity as such Trustee and not in
its  individual  capacity,  until a  successor  Trustee  shall have  become such
pursuant  to  the  applicable  provisions  of  this  Indenture,  and  thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder and,
if at any time  there  is more  than one such  Person,  "Trustee"  as used  with
respect to the Securities shall mean the Trustee with respect to Securities.

         SECTION 1.2.  Compliance Certificate and Opinions.

         Upon any  application  or request by the  Corporation to the Trustee to
take any action under any provision of this  Indenture,  the  Corporation  shall
furnish to the Trustee an  Officers'  Certificate  stating  that all  conditions
precedent  (including  covenants  compliance with which  constitutes a condition
precedent),  if any,  provided  for in this  Indenture  relating to the proposed
action have been  complied  with and an Opinion of Counsel  stating  that in the
opinion of such  counsel  all such  conditions  precedent  (including  covenants
compliance  with which  constitutes  a condition  precedent),  if any, have been
complied with,  except that in the case of any such application or request as to
which the furnishing of such documents is specifically required by any provision
of this  Indenture  relating  to such  particular  application  or  request,  no
additional certificate or opinion need be furnished.

         Every  certificate  or  opinion  with  respect  to  compliance  with  a
condition  or  covenant   provided  for  in  this  Indenture   (other  than  the
certificates provided pursuant to Section 10.4) shall include:

                  (1) a statement by each individual signing such certificate or
         opinion that such  individual  has read such  covenant or condition and
         the definitions herein relating thereto;

                  (2) a  brief  statement  as to the  nature  and  scope  of the
         examination or  investigation  upon which the statements or opinions of
         such individual contained in such certificate or opinion are based;

                  (3) a statement that, in the opinion of such individual, he or
         she has made such  examination  or  investigation  as is  necessary  to
         enable him or her to express an  informed  opinion as to whether or not
         such covenant or condition has been complied with; and

                                                         - 10 -


<PAGE>




                  (4)  a  statement  as to  whether,  in  the  opinion  of  such
         individual, such condition or covenant has been complied with.

         SECTION 1.3.  Forms of Documents Delivered to Trustee.

         In any case where  several  matters are required to be certified by, or
covered by an opinion of, any specified  Person,  it is not  necessary  that all
such  matters  be  certified  by, or covered by the  opinion  of,  only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such  Persons may certify or give an opinion as to other  matters,
and any of such  Persons  may  certify  or give an  opinion  as to such  matters
contained in one or several documents.

         Any  certificate  or opinion of an  officer of the  Corporation  may be
based, insofar as it relates to legal matters, upon a certificate or opinion of,
or representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the  certificate,  opinion or  representations
with  respect to matters upon which his or her  certificate  or opinion is based
are erroneous.  Any such certificate or Opinion of Counsel may be based, insofar
as it  relates  to  factual  matters,  upon a  certificate  or  opinion  of,  or
representations  by, one or more  officers of the  Corporation  stating that the
information  with respect to such factual  matters is in the  possession  of the
Corporation,  unless such counsel knows,  or in the exercise of reasonable  care
should know, that the certificate,  opinion or  representations  with respect to
matters upon which his or her certificate or opinion is based are erroneous.

         Where any  Person is  required  to make,  give or  execute  two or more
applications,  requests, consents, certificates,  statements, opinions, or other
instruments  under this Indenture,  they may, but need not, be consolidated  and
form one instrument.

         SECTION 1.4.  Acts of Holders.

         (a) Any request,  demand,  authorization,  direction,  notice, consent,
waiver or other  action  provided by this  Indenture  to be given to or taken by
Holders  may  be  embodied  in and  evidenced  by one  or  more  instruments  of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing;  and, except as herein otherwise expressly provided,  such
action shall become  effective  when such  instrument or  instruments  is or are
delivered to the Trustee,  and, where it is hereby  expressly  required,  to the
Corporation. Such instrument or instruments (and the action embodied therein and
evidenced  thereby) are herein sometimes referred to as the "Act" of the Holders
signing  such  instrument  or  instruments.  Proof  of  execution  of  any  such
instrument or of a writing appointing any such agent shall be sufficient for any
purpose of this  Indenture  and (subject to Section 6.1)  conclusive in favor of
the Trustee and the Corporation,  if made in the manner provided in this Section
1.4.

         (b) The  fact  and  date of the  execution  by any  Person  of any such
instrument  or  writing  may be proved  by the  affidavit  of a witness  of such
execution or by the certificate of any notary

                                                         - 11 -


<PAGE>



public or other  officer  authorized  by law to take  acknowledgments  of deeds,
certifying that the individual  signing such instrument or writing  acknowledged
to such notary the execution thereof. Where such execution is by a Person acting
in other than such Persons's individual capacity,  such certificate or affidavit
shall also constitute sufficient proof of such Person's authority.

         (c) The  fact  and  date of the  execution  by any  Person  of any such
instrument or writing,  or the authority of the Person  executing the same,  may
also be proved in any other  manner that the  Trustee  deems  sufficient  and in
accordance with such reasonable rules as the Trustee may determine.

         (d) The  ownership  of  Securities  shall be proved  by the  Securities
Register.

         (e) Any request,  demand,  authorization,  direction,  notice, consent,
waiver or other  action by the Holder of any  Security  shall bind every  future
Holder of the same  Security  and the Holder of every  Security  issued upon the
transfer  thereof  or in  exchange  therefor  or in lieu  thereof  in respect of
anything  done or  suffered  to be done by the  Trustee  or the  Corporation  in
reliance  thereon,  whether  or not  notation  of such  action is made upon such
Security.

         (f) The Corporation may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to give, make or take
any request, demand, authorization,  direction, notice, consent, waiver or other
action  provided or  permitted by this  Indenture to be given,  made or taken by
Holders of Securities,  provided that the  Corporation may not set a record date
for, and the provisions of this  paragraph  shall not apply with respect to, the
giving or making of any notice, declaration, request or direction referred to in
the next  succeeding  paragraph.  If any  record  date is set  pursuant  to this
paragraph,  the Holders of  Outstanding  Securities on such record date,  and no
other  Holders,  shall be entitled to take the relevant  action,  whether or not
such Holders remain Holders after such record date, provided that no such action
shall  be  effective  hereunder  unless  taken  on or  prior  to the  applicable
Expiration Date (as defined below) by Holders of the requisite  principal amount
of Outstanding  Securities on such record date.  Nothing in this paragraph shall
be construed to prevent the  Corporation  from setting a new record date for any
action  for  which a  record  date has  previously  been  set  pursuant  to this
paragraph (whereupon the record date previously set shall automatically and with
no action by any  Person be  canceled  and of no  effect),  and  nothing in this
paragraph  shall be construed to render  ineffective any action taken by Holders
of the requisite  principal  amount of  Outstanding  Securities on the date such
action  is  taken.  Promptly  after  any  record  date is set  pursuant  to this
paragraph,  the  Corporation,  at its own  expense,  shall cause  notice of such
record date, the proposed  action by Holders and the applicable  Expiration Date
to be given to the Trustee in writing and to each  Holder of  Securities  in the
manner set forth in Section 1.6.

         The  Trustee  may set any  day as a  record  date  for the  purpose  of
determining the Holders of Outstanding Securities entitled to join in the giving
or making of (i) any Notice of Default,  (ii) any  declaration  of  acceleration
referred to in Section 5.2, (iii) any request to institute  proceedings referred
to in Section 5.7(2), or (iv) any direction referred to in Section 5.12, in each
case with  respect to  Securities.  If any record  date is set  pursuant to this
paragraph, the

                                                         - 12 -


<PAGE>



Holders of  Outstanding  Securities on such record date,  and no other  Holders,
shall be entitled to join in such  notice,  declaration,  request or  direction,
whether or not such Holders remain Holders after such record date, provided that
no such action  shall be  effective  hereunder  unless  taken on or prior to the
applicable  Expiration  Date by Holders  of the  requisite  principal  amount of
Outstanding  Securities on such record date.  Nothing in this paragraph shall be
construed  to prevent the Trustee  from setting a new record date for any action
for which a record  date has  previously  been set  pursuant  to this  paragraph
(whereupon the record date previously set shall automatically and with no action
by any Person be canceled and of no effect), and nothing in this paragraph shall
be construed to render  ineffective any action taken by Holders of the requisite
principal  amount of  Outstanding  Securities  on the date such action is taken.
Promptly after any record date is set pursuant to this  paragraph,  the Trustee,
at the  Corporation's  expense,  shall  cause  notice of such record  date,  the
proposed action by Holders and the applicable Expiration Date to be given to the
Corporation  in writing and to each Holder of Securities in the manner set forth
in Section 1.6.

         With  respect to any record date set  pursuant to this Section 1.4, the
party hereto that sets such record date may designate any day as the "Expiration
Date" and from time to time may change  the  Expiration  Date to any  earlier or
later day,  provided that no such change shall be effective unless notice of the
proposed new Expiration Date is given to the other party hereto in writing,  and
to each Holder of Securities in the manner set forth in Section 1.6, on or prior
to the existing  Expiration  Date. If an Expiration  Date is not designated with
respect to any record date set  pursuant to this  Section  1.4, the party hereto
that set such record date shall be deemed to have initially designated the 180th
day after such record date as the Expiration Date with respect thereto,  subject
to its  right to change  the  Expiration  Date as  provided  in this  paragraph.
Notwithstanding the foregoing,  no Expiration Date shall be later than the 180th
day after the applicable record date.

         (g) Without limiting the foregoing, a Holder entitled hereunder to take
any action  hereunder  with  regard to any  particular  Security  may do so with
regard to all or any part of the principal  amount of such Security or by one or
more duly appointed  agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.

         SECTION 1.5.  Notices, Etc. to Trustee and Corporation.

         Any request, demand, authorization,  direction, notice, consent, waiver
or other  Act of  Holders  or  other  document  provided  or  permitted  by this
Indenture to be made upon, given or furnished to, or filed with,

                  (1)  the  Trustee  by  any  Holder,   any  holder  of  Capital
         Securities or the  Corporation  shall be  sufficient  for every purpose
         hereunder if made, given,  furnished or filed in writing to or with the
         Trustee at its Corporate Trust office, or

                  (2) the  Corporation by the Trustee,  any Holder or any holder
         of Capital  Securities shall be sufficient for every purpose (except as
         otherwise provided in

                                                         - 13 -


<PAGE>



         Section 5.1)  hereunder if in writing and mailed,  first-class  postage
         prepaid,  to the  Corporation  addressed  to it at the  address  of its
         principal  office specified in the first paragraph of this Indenture or
         at any other address previously  furnished in writing to the Trustee by
         the Corporation.

         SECTION 1.6.  Notice to Holders; Waiver.

         Where this Indenture  provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly  provided)
if in writing and mailed,  first-class  postage prepaid, to each Holder affected
by such event,  at the  address of such  Holder as it appears in the  Securities
Register,  not later than the latest  date,  and not earlier  than the  earliest
date,  prescribed for the giving of such notice. If, by reason of the suspension
of or  irregularities  in regular mail service or for any other reason, it shall
be impossible or  impracticable to mail notice of any event to Holders when said
notice is required to be given pursuant to any provision of this Indenture or of
the  relevant  Securities,  then any  manner of giving  such  notice as shall be
satisfactory  to the Trustee  shall be deemed to be a sufficient  giving of such
notice.  In any case  where  notice to  Holders  is given by mail,  neither  the
failure to mail such  notice,  nor any  defect in any  notice so mailed,  to any
particular  Holder shall affect the  sufficiency  of such notice with respect to
other  Holders.  Where this  Indenture  provides for notice in any manner,  such
notice may be waived in writing by the Person  entitled to receive  such notice,
either  before or after the event,  and such waiver shall be the  equivalent  of
such notice.  Waivers of notice by Holders shall be filed with the Trustee,  but
such filing  shall not be a condition  precedent  to the  validity of any action
taken in reliance upon such waiver.

         SECTION 1.7.  Conflict with Trust Indenture Act.

         The Trust  Indenture  Act shall  apply as a matter of  contract to this
Indenture for purposes of  interpretation,  construction and defining the rights
and obligations hereunder,  and this Indenture,  the Corporation and the Trustee
shall be deemed for all  purposes  hereof to be subject to and  governed  by the
Trust  Indenture  Act to the same extent as would be the case if this  Indenture
were qualified under that Act on the date hereof.  Except as otherwise expressly
provided  herein,  if and to the extent  that any  provision  of this  Indenture
limits, qualifies or conflicts with the duties imposed by any of Sections 310 to
317,  inclusive,  of the Trust Indenture Act through operation of Section 318(c)
thereof, such imposed duties shall control.

         SECTION 1.8.  Effect of Headings and Table of Contents.

         The Article and Section  headings  herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.


                                                         - 14 -


<PAGE>



         SECTION 1.9.  Successors and Assigns.

         All covenants and agreements in this Indenture by the Corporation shall
bind its successors and assigns, whether so expressed or not.

         SECTION 1.10.  Separability Clause.

         If any  provision  in this  Indenture  or in the  Securities  shall  be
invalid, illegal or unenforceable,  the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

         SECTION 1.11.  Benefits of Indenture.

         Nothing in this  Indenture  or in the  Securities,  express or implied,
shall give to any Person, other than the parties hereto and their successors and
assigns, the holders of Senior Indebtedness,  the Holders of the Securities and,
to the extent expressly  provided in Sections 5.2, 5.8, 5.9, 5.11, 5.13, 9.1 and
9.2,  the holders of Capital  Securities,  any benefit or any legal or equitable
right, remedy or claim under this Indenture.

         SECTION 1.12.  Governing Law.

         THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

         SECTION 1.13.  Non-Business Days.

         If any Interest Payment Date,  Redemption Date or Stated Maturity shall
not be a  Business  Day,  then  (notwithstanding  any  other  provision  of this
Indenture or the  Securities)  payment of principal of (and premium,  if any) or
interest or other  amounts in respect of such  Security need not be made on such
date, but may be made on the next succeeding Business Day (and no interest shall
accrue in respect of the amounts whose payment is so delayed for the period from
and after such Interest Payment Date, Redemption Date or Stated Maturity, as the
case may be,  until such next  succeeding  Business  Day) except  that,  if such
Business Day falls in the next  succeeding  calendar year, such payment shall be
made on the immediately preceding Business

                                                         - 15 -


<PAGE>



Day (in each case  with the same  force  and  effect as if made on the  Interest
Payment Date or Redemption Date or at the Stated Maturity).


                                   ARTICLE II

                                 SECURITY FORMS

         SECTION 2.1.  Forms Generally.

         The Securities and the Trustee's certificate of authentication shall be
in substantially  the forms set forth in this Article,  or in such other form or
forms as shall be established by or pursuant to a Board  Resolution or in one or
more  indentures  supplemental  hereto,  in  each  case  with  such  appropriate
insertions,  omissions,  substitutions  and other  variations as are required or
permitted by this Indenture and may have such letters, numbers or other marks of
identification  and  such  legends  or  endorsements  placed  thereon  as may be
required  to comply  with  applicable  tax laws or the  rules of any  securities
exchange  or as  may,  consistently  herewith,  be  determined  by the  officers
executing such securities, as evidenced by their execution of the Securities.

         The definitive Securities shall be printed, lithographed or engraved or
produced by any  combination  of these  methods,  if required by any  securities
exchange on which the  Securities may be listed,  on a steel engraved  border or
steel engraved  borders or may be produced in any other manner  permitted by the
rules of any securities  exchange on which the Securities may be listed,  all as
determined  by the officers  executing  such  Securities,  as evidenced by their
execution of such securities.

         SECTION 2.2.  Form of Face of Security.

                                 HSB GROUP, INC.
7.0% Convertible Subordinated Deferrable Interest Debentures due December 31,
2017

No. 1                                                               $309,300,000

         HSB GROUP,  INC., a  Connecticut  corporation  (hereinafter  called the
"Corporation",  which term  includes any  successor  Person under the  Indenture
hereinafter  referred  to), for value  received,  hereby  promises to pay to The
First  National  Bank of  Chicago,  as Property  Trustee,  pursuant to the Trust
Agreement  of HSB  Capital II,  dated as of December  31,  1997,  or  registered
assigns,  the principal sum of Three Hundred Nine Million Three Hundred Thousand
($309,300,000)  Dollars on December 31, 2017;  provided that the Corporation may
shorten the Stated  Maturity  of the  principal  of this  Security to a date not
earlier  than  December 31, 2012 in the  circumstances  described on the reverse
hereof.  The Corporation  further promises to pay interest on said principal sum
from  December 31, 1997 or from the most recent  Interest  Payment Date to which
interest has been paid or duly provided for,  semi-annually (subject to deferral
as set  forth  herein)  in  arrears  on  January  15 and  July 15 of each  year,
commencing January 15,

                                                         - 16 -


<PAGE>



1998, at the rate of 7.0% per annum,  together with Additional  Sums, if any, as
provided in Section 10.6 of the Indenture until the principal  hereof is paid or
duly provided for or made available for payment.  The amount of interest payable
for any period less than a full  interest  period shall be computed on the basis
of a 360-day  year of twelve  30-day  months  and the actual  days  elapsed in a
partial  month in such  period.  The  amount of  interest  payable  for any full
interest  period shall be computed by dividing the applicable  rate per annum by
two. The interest so payable,  and punctually  paid or duly provided for, on any
Interest Payment Date will, as provided in the Indenture,  be paid to the Person
in  whose  name  this  Security  (or  one or  more  Predecessor  Securities)  is
registered at the close of business on the Regular Record Date for such interest
installment,  which  shall be the January 1 or July 1 (whether or not a Business
Day), as the case may be, next  preceding  such Interest  Payment Date. Any such
interest not so punctually paid or duly provided for shall forthwith cease to be
payable to the Holder on such Regular  Record Date and may either be paid to the
Person in whose name this Security (or one or more  Predecessor  Securities)  is
registered at the close of business on a Special  Record Date for the payment of
such  Defaulted  Interest to be fixed by the Trustee,  notice  whereof  shall be
given to  Holders  of  Securities  not less than 10 days  prior to such  Special
Record Date, or be paid at any time in any other lawful manner not  inconsistent
with the  requirements  of any securities  exchange on which the Security may be
listed,  and upon such notice as may be required by such  exchange,  all as more
fully provided in said Indenture.

         So long as no Event of Default  has  occurred  and is  continuing,  the
Corporation  shall have the right, at any time during the term of this Security,
from time to time to defer the payment of interest  on this  Security  for up to
ten  consecutive  semi-annual  interest  payment  periods  with  respect to each
deferral period (each an "Extension Period"), during which Extension Periods the
Corporation  shall have the right to make  partial  payments  of interest on any
Interest  Payment Date,  and at the end of which the  Corporation  shall pay all
interest then accrued and unpaid;  provided,  however,  that no Extension Period
shall extend  beyond the Stated  Maturity of the  principal of this  Security as
then in  effect,  and no such  Extension  Period may end on a date other than an
Interest  Payment  Date;  and provided  further,  however,  that during any such
Extension Period,  the Corporation shall not (i) declare or pay any dividends or
distributions  on, or redeem,  purchase,  acquire or make a liquidation  payment
with  respect  to,  any of the  Corporation's  capital  stock,  or (ii) make any
payment of principal of or interest or premium, if any, on or repay,  repurchase
or redeem any debt  securities  of the  Corporation  that rank pari passu in all
respects with or junior in interest to this Security or (iii) make any guarantee
payments with respect to any guarantee by the Corporation of the debt securities
of any subsidiary of the  Corporation if such guarantee ranks pari passu with or
junior in interest to the Securities  (other than (a) dividends or distributions
in  common  stock of the  Corporation,  (b) any  declaration  of a  dividend  in
connection  with the  implementation  of a  stockholders'  rights  plan,  or the
issuance  of stock  under  any such plan in the  future,  or the  redemption  or
repurchase of any such rights pursuant thereto, (c) payments under the Guarantee
and (d)  purchases  of common  stock  related to the issuance of common stock or
rights under any of the  Corporation's  or its  subsidiaries'  benefit plans for
their  directors,  officers or employees).  Prior to the termination of any such
Extension  Period,  the  Corporation  may further defer the payment of interest,
provided  that no  Extension  Period shall  exceed ten  consecutive  semi-annual
interest payment

                                                         - 17 -


<PAGE>



periods,  and shall not extend  beyond the Stated  Maturity of the  principal of
this  Security or end on a date other than an Interest  Payment  Date.  Upon the
termination of any such Extension Period and upon the payment of all accrued and
unpaid interest then due on any Interest Payment Date, the Corporation may elect
to  begin  a  new  Extension  Period,  subject  to  the  above  conditions.  The
Corporation shall give the Holder of this Security and the Trustee notice of its
election to begin any  Extension  Period at least one  Business Day prior to the
next succeeding  Interest  Payment Date on which interest on this Security would
be payable but for such deferral or so long as such  Securities  are held by HSB
Capital  II, at least one  Business  Day  prior to the  earlier  of (i) the next
succeeding date on which  Distributions on the Capital Securities of such Issuer
Trust  would be payable  but for such  deferral,  and (ii) the date on which the
Property  Trustee of such Issuer  Trust is required to give notice to holders of
such Capital  Securities of the record date or the date such  Distributions  are
payable.

         Payment of the principal of (and premium,  if any) and interest on this
Security will be made at the office or agency of the Corporation  maintained for
that  purpose  in New  York,  New York or  Chicago,  Illinois,  in such  coin or
currency  of the  United  States of  America  as at the time of payment is legal
tender for payment of public and private debts;  provided,  however, that at the
option of the Corporation payment of interest may be made (i) by check mailed to
the address of the Person  entitled  thereto as such address shall appear in the
Securities Register,  or (ii) by wire transfer in immediately available funds at
such place and to such  account  as may be  designated  by the  Person  entitled
thereto as specified in the Securities Register.

         The indebtedness  evidenced by this Security is, to the extent provided
in the  Indenture,  subordinate  and  junior  in right of  payment  to the prior
payment in full of all Senior Indebtedness, and ranks pari passu with HSB Group,
Inc.'s Global Floating Rate Junior Subordinated  Debentures,  Series B, and this
Security is issued  subject to the  provisions  of the  Indenture  with  respect
thereto.  Each Holder of this Security, by accepting the same, (a) agrees to and
shall be bound by such  provisions,  (b)  authorizes  and directs the Trustee on
such Holder's  behalf to take such actions as may be necessary or appropriate to
effectuate the  subordination  so provided,  and (c) appoints the Trustee his or
her attorney-in-fact for any and all such purposes.  Each Holder hereof, by such
Holder's  acceptance  hereof,  waives  all  notice  of  the  acceptance  of  the
subordination provisions contained herein and in the Indenture by each holder of
Senior Indebtedness,  whether now outstanding or hereafter incurred,  and waives
reliance by each such holder upon said provisions.

         Reference is hereby made to the further provisions of this Security set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

         Unless the  certificate of  authentication  hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall  not be  entitled  to any  benefit  under  the  Indenture  or be  valid or
obligatory for any purpose.


                                                         - 18 -


<PAGE>



         IN WITNESS  WHEREOF,  the  Corporation has caused this instrument to be
duly executed under its corporate seal.

                                             HSB GROUP, INC.


                                             By:        --------------------
                                             Name:      Saul L. Basch
                                             Title:     Senior Vice President,
                                                        Treasurer and Chief
                                                        Financial Officer

Attest:

- -------------------
Corporate Secretary

         SECTION 2.3.  Form of Reverse of Security.

         This  Security  is  a  duly  authorized  issue  of  securities  of  the
Corporation  (herein called the  "Securities"),  limited in aggregate  principal
amount to  $309,300,000,  issued under the  Indenture,  dated as of December 31,
1997 (herein  called the  "Indenture"),  between the  Corporation  and The First
National Bank of Chicago,  as Trustee  (herein called the "Trustee",  which term
includes any successor trustee under the Indenture),  to which Indenture and all
indentures  supplemental thereto reference is hereby made for a statement of the
respective rights,  limitations of rights,  duties and immunities  thereunder of
the Corporation, the Trustee, the holders of Senior Indebtedness and the Holders
of the  Securities,  and of the terms upon which the Securities  are, and are to
be, authenticated and delivered.

         All terms used in this Security that are defined in the Indenture or in
the Trust  Agreement,  dated as of December  31, 1997 (as  modified,  amended or
supplemented from time to time, the "Trust Agreement"),  relating to HSB Capital
II (the "Issuer Trust") among the Corporation,  as Depositor, the Trustees named
therein  and the  Holders  from  time to time  of the  Trust  Securities  issued
pursuant  thereto,  shall have the meanings assigned to them in the Indenture or
the Trust Agreement, as the case may be.

         The  Corporation  may  at any  time,  at its  option,  (i) on or  after
December 31, 2004 or (ii) for a reason specified in Article XI of the Indenture,
in  both  cases  subject  to the  terms  and  conditions  of  Article  XI of the
Indenture,  redeem  this  Security  in whole at any time or in part from time to
time  at a  Redemption  Price  equal  to 100% of the  principal  amount  hereof,
together,  in the case of any such  redemption,  with  accrued  interest  to but
excluding the Redemption Date fixed for redemption.


                                                         - 19 -


<PAGE>



         Under limited circumstances,  Employers Reinsurance Corporation may, at
its  option  and  subject  to the  terms and  conditions  of  Article  XI of the
Indenture,  require  the  Corporation  to redeem this  Security  in whole,  at a
Redemption Price as stated in Section 11.8 of the Indenture.

         In addition,  upon the occurrence and during the  continuation of a Tax
Event in respect of the Issuer Trust, the Corporation may, at its option, at any
time within 90 days of the  occurrence and during the  continuation  of such Tax
Event, redeem this Security,  in whole but not in part, subject to the terms and
conditions of Article XI of the Indenture,  at a Redemption  Price equal to 100%
of the principal amount of the 7.0% Convertible Subordinated Deferrable Interest
Debentures so redeemed plus accrued and unpaid  interest  thereon to the date of
redemption.

         In the  event  of  redemption  of this  Security  in part  only,  a new
Security or Securities for the  unredeemed  portion hereof will be issued in the
name of the Holder hereof upon the cancellation hereof.

         The Indenture contains provisions for satisfaction and discharge of the
entire  indebtedness of this Security upon  compliance by the  Corporation  with
certain conditions set forth in the Indenture.

         The Indenture permits, with certain exceptions as therein provided, the
Corporation  and the Trustee at any time to enter into a supplemental  indenture
or  indentures  for the  purpose  of  modifying  in any  manner  the  rights and
obligations of the Corporation  and of the Holders of the  Securities,  with the
consent of the  Holders of not less than a majority in  principal  amount of the
Outstanding  Securities  to be  affected  by such  supplemental  indenture.  The
Indenture also contains provisions  permitting Holders of specified  percentages
in principal amount of the Securities at the time Outstanding,  on behalf of the
Holders of all Securities,  to waive  compliance by the Corporation with certain
provisions of the  Indenture  and certain past defaults  under the Indenture and
their  consequences.  Any such consent or waiver by the Holder of this  Security
shall be conclusive  and binding upon such Holder and upon all future Holders of
this  Security  and of any  Security  issued upon the  registration  of transfer
hereof or in exchange hereof or in lieu hereof,  whether or not notation of such
consent or waiver is made upon this Security.

         As provided in and subject to the  provisions of the  Indenture,  if an
Event of Default with respect to the Securities at the time  Outstanding  occurs
and is continuing, then and in every such case the Trustee or the Holders of not
less than 25% in aggregate  principal  amount of the Outstanding  Securities may
declare the  principal  amount of all the  Outstanding  Securities to be due and
payable  immediately,  by a notice in  writing  to the  Corporation  (and to the
Trustee if given by Holders),  provided  that, if upon an Event of Default,  the
Trustee or such  Holders fail to declare the  principal  of all the  Outstanding
Securities  to be  immediately  due and payable,  the holders of at least 25% in
aggregate  Liquidation  Amount of the Capital  Securities then Outstanding shall
have  the  right  to  make  such  declaration  by a  notice  in  writing  to the
Corporation and the Trustee;  and upon any such declaration the principal of and
the accrued  interest on all the  Securities  shall become  immediately  due and
payable, provided that the

                                                         - 20 -


<PAGE>



payment  of  such  principal  and  interest  on  such  Securities  shall  remain
subordinated to the extent provided in Article XII of the Indenture.

         Subject to the terms and  conditions  set forth in Article  XIII of the
Indenture,  this  Security is  convertible,  at the option of the  Holder,  into
shares of Common Stock.

         No reference  herein to the Indenture and no provision of this Security
or of the Indenture  shall alter or impair the  obligation  of the  Corporation,
which is absolute and  unconditional,  to pay the principal of (and premium,  if
any) and interest on this Security at the times, place and rate, and in the coin
or currency, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set forth,  the  transfer of this  Security  is  registrable  in the  Securities
Register,  upon surrender of this Security for  registration  of transfer at the
office  or  agency  of the  Corporation  maintained  under  Section  10.2 of the
Indenture  for such  purpose,  duly  endorsed  by, or  accompanied  by a written
instrument  of  transfer  in  form  satisfactory  to  the  Corporation  and  the
Securities  Registrar  duly  executed  by,  the Holder  hereof or such  Holder's
attorney duly  authorized in writing,  and thereupon one or more new Securities,
of like tenor, of authorized  denominations and for the same aggregate principal
amount, will be issued to the designated transferee or transferees.

         The Securities are issuable only in registered  form without coupons in
denominations  of  $10,000,000  and any integral  multiple of $100,000 in excess
thereof. As provided in the Indenture and subject to certain limitations therein
set forth,  Securities are exchangeable for a like aggregate principal amount of
Securities  and  of  like  tenor  of a  different  authorized  denomination,  as
requested by the Holder surrendering the same.

         No service charge shall be made for any such  registration  of transfer
or exchange,  but the  Corporation  may require  payment of a sum  sufficient to
cover any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Security for registration of transfer,
the Corporation, the Trustee and any agent of the Corporation or the Trustee may
treat the Person in whose name this  Security is  registered as the owner hereof
for all  purposes,  whether or not this  Security  be  overdue,  and neither the
Corporation,  the  Trustee nor any such agent shall be affected by notice to the
contrary.

         The Corporation and, by its acceptance of this Security or a beneficial
interest  therein,  the Holder of, and any  Person  that  acquires a  beneficial
interest in, this Security agree that for United States Federal, state and local
tax purposes it is intended that this Security constitute indebtedness.

         THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK.


                                                         - 21 -


<PAGE>




         SECTION 2.4.  Restrictive Legends.

                  Restricted  Securities  shall bear the  following  legend (the
"Restricted  Securities Legend") unless the Corporation  determines otherwise in
accordance with applicable law:

                  "THE CONVERTIBLE  SUBORDINATED  DEFERRABLE INTEREST DEBENTURES
         EVIDENCED  HEREBY AND THE COMMON STOCK  ISSUABLE UPON THEIR  CONVERSION
         HAVE NOT BEEN  REGISTERED  UNDER THE U.S.  SECURITIES  ACT OF 1933,  AS
         AMENDED (THE "SECURITIES  ACT"), AND MAY NOT BE OFFERED,  SOLD, PLEDGED
         OR OTHERWISE TRANSFERRED EXCEPT IN WHOLE OR IN PART (BUT IF IN PART, IN
         AMOUNTS  NOT LESS THAN  $10,000,000  IN  PRINCIPAL  AMOUNT) AND ONLY IN
         COMPLIANCE  WITH THE  REQUIREMENTS OF THE SECURITIES ACT OR PURSUANT TO
         AN APPLICABLE EXEMPTION THEREFROM."

         SECTION 2.5.  Form of Trustee's Certificate of Authentication.

         The Trustee's  certificates of authentication shall be in substantially
the following form:

         This is one of the  Securities  designated  therein  referred to in the
within-mentioned Indenture.

Dated:  December 31, 1997

                                        ----------------------------
                                        as Trustee

                                        By:
                                        Authorized Officer


                                   ARTICLE III

                                 THE SECURITIES

         SECTION 3.1.  Title and Terms.

         The aggregate  principal amount of Securities that may be authenticated
and  delivered  under this  Indenture  is  $309,300,000,  except for  Securities
authenticated  and delivered upon  registration  of, transfer of, or in exchange
for, or in lieu of, other Securities pursuant to Sections 3.4, 3.5 or 3.6.



                                                         - 22 -


<PAGE>



         SECTION 3.2.  Denominations.

         The Securities shall be in registered form without coupons and shall be
issuable in denominations  of $10,000,000 and any integral  multiple of $100,000
thereof.

         SECTION 3.3.  Execution, Authentication and Dating.

         The  Securities  shall be executed on behalf of the  Corporation by its
Chief Executive  Officer,  its President or one of its Senior Vice Presidents or
Vice Presidents and attested by its Corporate  Secretary or one of its Assistant
Secretaries.  The signature of any of these  officers on the  Securities  may be
manual or facsimile.

         Securities  bearing the manual or facsimile  signatures of  individuals
who were at any time the  proper  officers  of the  Corporation  shall  bind the
Corporation, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of such Securities or
did not hold such offices at the date of such  Securities.  At any time and from
time to time after the execution and delivery of this Indenture, the Corporation
may  deliver  Securities   executed  by  the  Corporation  to  the  Trustee  for
authentication,  together with a Corporation  Order for the  authentication  and
delivery of such Securities,  and the Trustee in accordance with the Corporation
Order  shall  authenticate  and  deliver  such  Securities.  Securities  may  be
authenticated on original  issuance from time to time and delivered  pursuant to
such  procedures  acceptable to the Trustee  ("Procedures")  as may be specified
from time to time by Corporation Order. Procedures may authorize  authentication
and  delivery  pursuant  to  oral  instructions  of  the  Corporation  or a duly
authorized agent, which instructions shall be promptly confirmed in writing.

         Each Security shall be dated the date of its authentication.

         No Security shall be entitled to any benefit under this Indenture or be
valid or  obligatory  for any purpose,  unless there  appears on such Security a
certificate  of  authentication  substantially  in the form  provided for herein
executed  by  the  Trustee  by the  manual  signature  of one of its  authorized
officers,  and such certificate upon any Security shall be conclusive  evidence,
and the only  evidence,  that  such  Security  has been duly  authenticated  and
delivered hereunder.  Notwithstanding the foregoing,  if any Security shall have
been  authenticated  and  delivered  hereunder  but never issued and sold by the
Corporation,  and the Corporation shall deliver such Security to the Trustee for
cancellation as provided in Section 3.9, for all purposes of this Indenture such
Security  shall  be  deemed  never  to have  been  authenticated  and  delivered
hereunder and shall never be entitled to the benefits of this Indenture.

         SECTION 3.4.  Temporary Securities.

         Pending the preparation of definitive  Securities,  the Corporation may
execute,  and upon Corporation Order the Trustee shall authenticate and deliver,
temporary Securities that are printed, lithographed,  typewritten,  mimeographed
or otherwise produced, in any denomination,

                                                         - 23 -


<PAGE>



substantially  of the tenor of the  definitive  Securities in lieu of which they
are issued and with such appropriate  insertions,  omissions,  substitutions and
other  variations as the officers  executing such  Securities may determine,  as
evidenced by their execution of such Securities.

         If  temporary   Securities  are  issued,  the  Corporation  will  cause
definitive  Securities  to be prepared  without  unreasonable  delay.  After the
preparation  of  definitive  Securities,   the  temporary  Securities  shall  be
exchangeable   for  definitive   Securities  upon  surrender  of  the  temporary
Securities  at the  office  or  agency of the  Corporation  designated  for that
purpose without charge to the Holder. Upon surrender for cancellation of any one
or more  temporary  Securities,  the  Corporation  shall execute and the Trustee
shall  authenticate  and deliver in  exchange  therefor  one or more  definitive
Securities  of  any  authorized  denominations,  of  like  tenor  and  aggregate
principal  amount,  bearing such restrictive  legends as may be required by this
Indenture  and  bearing a number  not  contemporaneously  outstanding.  Until so
exchanged,  the  temporary  Securities  shall in all respects be entitled to the
same benefits under this Indenture as definitive Securities.

         SECTION 3.5.  Registration, Transfer and Exchanges.

         (a)  Registration,  Transfer and Exchange  Generally.  The  Corporation
shall cause to be kept at the  Corporate  Trust Office of the Trustee a register
or registers  (the  "Securities  Register")  in which the registrar and transfer
agent with respect to the Securities (the  "Securities  Registrar"),  subject to
such  reasonable  regulations  as  it  may  prescribe,  shall  provide  for  the
registration  of  Securities  and of transfers  and  exchanges of  Securities as
herein provided.  The Trustee is hereby appointed  Securities  Registrar for the
purpose of  registering  Securities and transfers and exchanges of Securities as
herein provided.

         Upon  surrender  for  registration  of transfer of any  Security at the
office or agency of the Corporation designated for that purpose, the Corporation
shall execute,  and the Trustee shall  authenticate and deliver,  in the name of
the  designated  transferee or  transferees,  one or more new  Securities of any
authorized denominations,  of like tenor and aggregate principal amount, bearing
such  restrictive  legends as may be  required by this  Indenture  and bearing a
number not contemporaneously outstanding.

         At the option of the  Holder,  Securities  may be  exchanged  for other
Securities  of  any  authorized  denominations,  of  like  tenor  and  aggregate
principal  amount,  bearing such restrictive  legends as may be required by this
Indenture and bearing a number not contemporaneously outstanding, upon surrender
of the  Securities  to be  exchanged  at such  office or  agency.  Whenever  any
Securities are so surrendered for exchange,  the Corporation shall execute,  and
the Trustee  shall  authenticate  and deliver,  the  Securities  that the Holder
making the exchange is entitled to receive.

         All Securities issued upon any transfer or exchange of Securities shall
be the valid  obligations  of the  Corporation,  evidencing  the same debt,  and
entitled  to  the  same  benefits  under  this  Indenture,   as  the  Securities
surrendered upon such transfer or exchange.

                                                         - 24 -


<PAGE>




         Neither the Corporation, the Trustee nor the Securities Registrar shall
be  required,  pursuant to the  provisions  of this  Section  3.5, (i) to issue,
register the transfer of or exchange any Security  during a period  beginning at
the opening of business 15 days before the day of selection  for  redemption  of
Securities pursuant to Article XI and ending at the close of business on the day
of mailing of the notice of  redemption,  or (ii) to register the transfer of or
exchange any Security so selected for redemption in whole or in part, except, in
the case of any such Security to be redeemed in part, any portion thereof not to
be redeemed.

         Every Security presented or surrendered for registration of transfer or
exchange  shall (if so  required  by the  Corporation  or the  Trustee)  be duly
endorsed,  or be  accompanied  by a  written  instrument  of  transfer  in  form
satisfactory to the Corporation and the Securities  Registrar,  duly executed by
the Holder thereof or such Holder's attorney duly authorized in writing.

         No service  charge  shall be made to a Holder for any  registration  of
transfer or exchange of Securities, but the Corporation may require payment of a
sum sufficient to cover any tax or other governmental charge that may be imposed
in connection with any transfer or exchange of Securities.

         (b)   Registration,   Transfer,   and  Exchange.   A  Security  may  be
transferred,  in whole or in part, to a Person who takes delivery in the form of
another  Security,   provided  that  the  following  provisions  are  met.  When
Securities  are presented to the  Securities  Registrar  with a request:  (1) to
register the transfer of such Securities; or (2) to exchange such Securities for
Securities  in an  equal  aggregate  principal  amount  of  Securities  of other
authorized  denominations,  the Securities Registrar shall register the transfer
or make the exchange as requested if the  requirements  for such transaction are
met;  provided,  however,  that  the  Securities  surrendered  for  transfer  or
exchange:

                           (A)  shall  be  duly  endorsed  or  accompanied  by a
                  written instrument of transfer in form reasonably satisfactory
                  to the Trustee and the Securities Registrar,  duly executed by
                  the Holder thereof or his attorney duly authorized in writing,
                  delivered to the  Corporation at least 30 Business Days before
                  such intended  transfer,  and the  Corporation  shall not have
                  delivered a written notice of objection to the Holder within 5
                  Business Days prior to the intended transfer,  which notice of
                  objection  shall state  whether the  Corporation  is objecting
                  pursuant to subsection (D) or (E) below;

                           (B) in the case of Restricted  Securities,  are being
                  transferred  in  compliance  with  the   requirements  of  the
                  Securities   Act  or  pursuant  to  an  applicable   exemption
                  therefrom  and are  accompanied  by the  following  additional
                  information and documents:  a Restricted Security Certificate,
                  satisfactory   to  the  Trustee  and  duly   executed  by  the
                  transferor  Holder or his attorney duly authorized in writing,
                  in the  form  attached  hereto  as  Exhibit  A (a  "Restricted
                  Securities  Transfer  Certificate")  and an Opinion of Counsel
                  reasonably acceptable to the Corporation and to the Securities
                  Registrar to the effect that such transfer is in

                                                         - 25 -


<PAGE>



                  compliance   with  the  Securities  Act,  in  which  case  the
                  transferee  Holder  shall  take  delivery  in  the  form  of a
                  Restricted Security, subject to Section 3.5(c);

                           (C) shall be  accompanied  by a  statement  that such
                  transferee  agrees  in  writing  to be bound by the  terms and
                  provisions of the Trust Agreement and the Purchase Agreement;

                           (D) shall be subject to the right of the  Corporation
                  to veto  the  Holder's  choice  of  such  Person  to whom  the
                  proposed  transfer or disposition is to occur by giving notice
                  of such objection to the Holder as described in (A) above; and

                           (E) shall,  pursuant  to Section  4.2(a)(iii)  of the
                  Trust Agreement, be subject to the right of the Corporation to
                  cause the Issuer Trust to redeem at a Redemption  Price stated
                  in Section 11.7,  the Security or Securities  surrendered  for
                  transfer or exchange by giving notice of such objection to the
                  Holder as described in (A) above.

                  (c)  Securities  Act Legends.  Except as set forth below,  all
Securities or a new Security that is issued in exchange for another  Security or
any  portion  thereof,  upon  transfer  or  otherwise,  shall bear a  Restricted
Securities Legend:


                  (i) At any time after the Securities may be freely transferred
         without  registration under the Securities Act or without being subject
         to transfer restrictions pursuant to the Securities Act, a new Security
         which does not bear a  Securities  Act Legend may be issued in exchange
         for or in lieu of a Security or any portion  thereof which bears such a
         legend if the  Corporation  has received  from the Holder an Opinion of
         Counsel as  described in  subsection  (vi) below and if the Trustee has
         received an Unrestricted Securities Transfer Certificate in the form of
         Exhibit B hereto (an "Unrestricted  Securities Transfer  Certificate"),
         satisfactory  to the  Trustee  and duly  executed by the Holder of such
         legended Security or his attorney duly authorized in writing, and after
         such  date  and  receipt  of  such   certificate,   the  Trustee  shall
         authenticate and deliver such a new Security in exchange for or in lieu
         of such other Security as provided in this section;

                  (ii) a new Security that does not bear a Restricted Securities
         Legend  may be  issued  in  exchange  for or in  lieu  of a  Restricted
         Security or any portion  thereof that bears such a legend if, after the
         receipt by the  Corporation  of an Opinion of Counsel as  described  in
         subsection (vi) below, in the Corporation's sole judgment, placing such
         a legend  upon such new  Security is not and will not be  necessary  to
         ensure compliance with the registration  requirements of the Securities
         Act, and the Trustee,  at the written  direction of the  Corporation in
         the form of an Officers'  Certificate,  shall  authenticate and deliver
         such a new Security as provided in this section;



                                                         - 26 -


<PAGE>



                  (iii) Securities distributed to a holder of Capital Securities
         upon dissolution of the Issuer Trust shall bear a Restricted Securities
         Legend if the Capital Securities so held bear a similar legend; and

                  (iv) The Holder  agrees  that it will not effect the  proposed
         transfer or  disposition of the Security until such Holder has provided
         to the  Corporation  an  Opinion of  Counsel  satisfactory  in form and
         substance to the Corporation that such proposed disposition or transfer
         is exempt from registration under the Securities Act and any applicable
         state  securities  laws. The Corporation  shall use its best efforts to
         comply  with  any  state  securities  laws,  but  shall  in no event be
         required,  in  connection  therewith,  to qualify to do business in any
         state where it is not then  qualified  or to take any action that would
         subject  it to tax or to the  general  service  of process in any state
         where it is not then subject.

         SECTION 3.6.  Mutilated, Destroyed, Lost and Stolen Securities.

         If any mutilated  Security is surrendered to the Trustee  together with
such security or indemnity as may be required by the  Corporation or the Trustee
to save each of them  harmless,  the  Corporation  shall execute and the Trustee
shall  authenticate  and deliver in exchange  therefor a new  Security,  of like
tenor and aggregate  principal amount,  bearing the same legends,  and bearing a
number not contemporaneously outstanding.

         If there shall be delivered to the  Corporation  and to the Trustee (i)
evidence  to  their  satisfaction  of the  destruction,  loss  or  theft  of any
Security, and (ii) such security or indemnity as may be required by them to save
each of them harmless,  then, in the absence of notice to the Corporation or the
Trustee  that such  Security  has been  acquired by a bona fide  purchaser,  the
Corporation  shall execute and upon its request the Trustee  shall  authenticate
and  deliver,  in lieu of any such  destroyed,  lost or stolen  Security,  a new
Security, of like tenor and aggregate principal amount, bearing the same legends
as  such  destroyed,   lost  or  stolen  Security,  and  bearing  a  number  not
contemporaneously outstanding.

         If any such mutilated, destroyed, lost or stolen Security has become or
is about to become due and  payable,  the  Corporation  in its  discretion  may,
instead of issuing a new Security, pay such Security.

         Upon the  issuance of any new  Security  under this  Section  3.6,  the
Corporation  may  require the  payment of a sum  sufficient  to cover any tax or
other governmental  charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

         Every new  Security  issued  pursuant  to this  Section  in lieu of any
destroyed,  lost or stolen  Security  shall  constitute  an original  additional
contractual obligation of the Corporation, whether or not the destroyed, lost or
stolen Security shall be at any time enforceable by anyone, and shall

                                                         - 27 -


<PAGE>



be entitled to the same benefits of this Indenture  equally and  proportionately
with any and all other Securities duly issued hereunder.

         The provisions of this Section 3.6 are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities.

         SECTION 3.7.  Payment of Interest; Interest Rights Preserved.

         Interest on any Security  that is payable,  and is  punctually  paid or
duly provided for, on any Interest  Payment Date, shall be paid to the Person in
whose name that Security (or one or more  Predecessor  Securities) is registered
at the close of business on the Regular Record Date for such interest in respect
of such Securities,  except that,  unless otherwise  provided in the Securities,
interest  payable on the Stated Maturity of the principal of a Security shall be
paid to the Person to whom principal is paid. The initial payment of interest on
any  Security  that is  issued  between a Regular  Record  Date and the  related
Interest Payment Date shall be payable as provided in such Security.

         Any interest on any Security that is due and payable, but is not timely
paid or duly provided for, on any Interest  Payment Date for Securities  (herein
called  "Defaulted  Interest"),  shall  forthwith  cease  to be  payable  to the
registered  Holder on the relevant  Regular Record Date by virtue of having been
such Holder, and such Defaulted Interest may be paid by the Corporation,  at its
election in each case, as provided in Clause (1) or (2) below:

                  (1) The Corporation may elect to make payment of any Defaulted
         Interest  to the  Persons  in whose  names  the  Securities  (or  their
         respective  Predecessor  Securities)  are  registered  at the  close of
         business on a Special  Record  Date for the  payment of such  Defaulted
         Interest, which shall be fixed in the following manner. The Corporation
         shall notify the Trustee in writing of the amount of Defaulted Interest
         proposed  to be paid  on each  Security  and the  date of the  proposed
         payment,  and at the same time the  Corporation  shall deposit with the
         Trustee an amount of money equal to the aggregate amount proposed to be
         paid in respect of such Defaulted  Interest or shall make  arrangements
         satisfactory  to the Trustee for such deposit  prior to the date of the
         proposed payment, such money when deposited to be held in trust for the
         benefit of the Persons entitled to such Defaulted  Interest as provided
         in this Clause (1).  Thereupon the Trustee  shall fix a Special  Record
         Date for the  payment of such  Defaulted  Interest,  which shall be not
         more  than 15 days and not less  than 10 days  prior to the date of the
         proposed  payment  and not less than 10 days  after the  receipt by the
         Trustee  of the  notice of the  proposed  payment.  The  Trustee  shall
         promptly notify the Corporation of such Special Record Date and, in the
         name and at the expense of the  Corporation,  shall cause notice of the
         proposed payment of such Defaulted Interest and the Special Record Date
         therefor to be mailed, first-class postage prepaid, to each Holder of a
         Security at the address of such Holder as it appears in the  Securities
         Register not less than 10 days prior to such Special  Record Date.  The
         Trustee may, in its discretion, in the name and at the expense

                                                         - 28 -


<PAGE>



         of the  Corporation,  cause a similar  notice to be  published at least
         once in a newspaper,  customarily  published in the English language on
         each  Business  Day  and  of  general  circulation  in the  Borough  of
         Manhattan,  The City of New York, but such  publication  shall not be a
         condition  precedent to the  establishment of such Special Record Date.
         Notice of the  proposed  payment  of such  Defaulted  Interest  and the
         Special  Record Date  therefor  having been mailed as  aforesaid,  such
         Defaulted  Interest  shall be paid to the  Persons  in whose  names the
         Securities (or their respective Predecessor  Securities) are registered
         on such Special Record Date and shall no longer be payable  pursuant to
         the following Clause (2).

                  (2) The Corporation may make payment of any Defaulted Interest
         in any other lawful manner not  inconsistent  with the  requirements of
         any  securities  exchange on which the  Securities  in respect of which
         interest is in default  may be listed  and,  upon such notice as may be
         required by such exchange (or by the Trustee if the  Securities are not
         listed),  if, after notice given by the  Corporation  to the Trustee of
         the proposed payment pursuant to this Clause (2), such payment shall be
         deemed practicable by the Trustee.

         Subject to the foregoing  provisions of this Section 3.7, each Security
delivered under this Indenture upon transfer of or in exchange for or in lieu of
any other Security shall carry the rights to interest accrued and unpaid, and to
accrue, that were carried by such other Security.

         SECTION 3.8.  Persons Deemed Owners.

         The  Corporation,  the Trustee and any agent of the  Corporation or the
Trustee  shall treat the Person in whose name any Security is  registered as the
owner of such Security for the purpose of receiving  payment of principal of and
(subject  to  Section  3.7) any  interest  on such  Security  and for all  other
purposes  whatsoever,  whether or not such Security be overdue,  and neither the
Corporation,  the Trustee nor any agent of the  Corporation or the Trustee shall
be affected by notice to the contrary.

         SECTION 3.9.  Cancellation.

         All  Securities  surrendered  for  payment,  redemption,   transfer  or
exchange  shall,  if  surrendered  to any  Person  other  than the  Trustee,  be
delivered to the Trustee,  and any such  Securities and  Securities  surrendered
directly to the Trustee for any such purpose  shall be promptly  canceled by it.
The  Corporation  may at any time  deliver to the Trustee for  cancellation  any
Securities previously authenticated and delivered hereunder that the Corporation
may have  acquired in any manner  whatsoever,  and all  Securities  so delivered
shall be promptly canceled by the Trustee.  No Securities shall be authenticated
in lieu of or in  exchange  for any  Securities  canceled  as  provided  in this
Section 3.9,  except as  expressly  permitted  by this  Indenture.  All canceled
Securities  shall be destroyed by the Trustee and the Trustee  shall  deliver to
the Corporation a certificate of such destruction.


                                                         - 29 -


<PAGE>



         SECTION 3.10.  Computation of Interest.

          Interest on the Securities for any partial period shall be computed on
the basis of a 360- day year of twelve  30-day  months and the actual  number of
days elapsed in any partial month in such period, and interest on the Securities
for a full period shall be computed by dividing the rate per annum by the number
of interest periods that together constitute a full twelve months.

         SECTION 3.11.  Deferrals of Interest Payment Dates.

          So long as no Event of Default has  occurred  and is  continuing,  the
Corporation shall have the right, at any time during the term, from time to time
to defer the payment of interest on such  Securities  for up to ten  consecutive
semi-annual  interest  payment periods with respect to each such deferral period
(each, an "Extension  Period"),  during which Extension  Periods the Corporation
shall  have the right to make  partial  payments  of  interest  on any  Interest
Payment  Date.  No  Extension  Period shall end on a date other than an Interest
Payment Date. At the end of any such Extension Period the Corporation  shall pay
all interest then accrued and unpaid on the Securities;  provided, however, that
no Extension  Period shall extend beyond the Stated Maturity of the principal of
the  Securities;  and provided  further,  however that during any such Extension
Period,  the  Corporation  shall  not  (i)  declare  or  pay  any  dividends  or
distributions  on, or redeem,  purchase,  acquire or make a liquidation  payment
with  respect  to,  any of the  Corporation's  capital  stock,  or (ii) make any
payment of principal of or interest or premium, if any, on or repay,  repurchase
or redeem any debt  securities  of the  Corporation  that rank pari passu in all
respects  with or junior in interest  to the  Securities  or make any  guarantee
payments with respect to any guarantee by the Corporation of the debt securities
of any Subsidiary of the  Corporation if such guarantee ranks pari passu with or
junior in interest to the Securities  (other than (a) dividends or distributions
of  Common  Stock of the  Corporation,  (b) any  declaration  of a  dividend  in
connection  with the  implementation  of a  stockholders'  rights  plan,  or the
issuance of Common Stock under any such plan in the future, or the redemption or
repurchase of any such rights pursuant thereto, (c) payments under the Guarantee
Agreement  and (d)  purchases of Common Stock  related to the issuance of Common
Stock  or  rights  under  any of the  Corporation's  or  any  Subsidiary  of the
Corporation's benefit plans for their directors, officers or employees. Prior to
the termination of any such Extension Period,  the Corporation may further defer
the payment of interest,  provided  that no Event of Default has occurred and is
continuing,  and  provided  further  that no  Extension  Period shall exceed the
period or  periods  specified  in such  Securities,  extend  beyond  the  Stated
Maturity  of the  principal  of such  Securities  or end on a date other than an
Interest  Payment Date.  Upon the  termination of any such Extension  Period and
upon the  payment of all accrued and unpaid  interest  then due on any  Interest
Payment Date, the Corporation may elect to begin a new Extension Period, subject
to  the  above  conditions.  The  Corporation  shall  give  the  Holders  of the
Securities  and the Trustee  notice of its election to begin any such  Extension
Period at least one Business Day prior to the next succeeding  Interest  Payment
Date on which  interest on Securities  would be payable but for such deferral or
so long as any such  Securities  are held by such  Issuer  Trust,  at least  one
Business  Day  prior to the  earlier  of (i) the next  succeeding  date on which
Distributions  on the Capital  Securities  of such Issuer Trust would be payable
but for such deferral, and (ii) the date

                                                         - 30 -


<PAGE>



on which the Property Trustee of such Issuer Trust is required to give notice to
holders  of  such  Capital  Securities  of the  record  date  or the  date  such
Distributions are payable.

         The Trustee shall promptly give notice of the Corporation's election to
begin any such Extension Period to the Holders of the Outstanding Securities.

         SECTION 3.12.  Right of Set-Off.

          Notwithstanding anything to the contrary herein, the Corporation shall
have the  right  to set off any  payment  it is  otherwise  required  to make in
respect of any such Security to the extent the Corporation has theretofore made,
or is  concurrently  on the date of such  payment  making,  a payment  under the
Guarantee  Agreement  relating  to  such  Security  or to a  holder  of  Capital
Securities pursuant to an action undertaken under Section 5.8 of this Indenture.

         SECTION 3.13.  Agreed Tax Treatment.

         Each Security issued  hereunder shall provide that the Corporation and,
by its acceptance of a Security or a beneficial interest therein, the Holder of,
and any Person that acquires a beneficial  interest in, such Security agree that
for United States federal, state and local tax purposes it is intended that such
Security constitutes indebtedness.

         SECTION 3.14.  Shortening of Stated Maturity.

         If specified or as contemplated  by Section 2.1, the Corporation  shall
have the right to shorten the Stated Maturity of the principal of the Securities
at any time to any date.

         SECTION 3.15.  CUSIP Numbers.

         The  Corporation in issuing the Securities may (but is not required to)
use "CUSIP"  numbers (if then  generally in use),  and, if so, the Trustee shall
use  "CUSIP"  numbers  in  notices of  redemption  and other  similar or related
materials as a  convenience  to Holders;  provided that any such notice or other
materials may state that no representation is made as to the correctness of such
numbers  either as printed on the  Securities  or as  contained in any notice of
redemption or other  materials and that reliance may be placed only on the other
identification numbers printed on the Securities,  and any such redemption shall
not be affected by any defect in or omission of such numbers.


                                   ARTICLE IV

                           SATISFACTION AND DISCHARGE

         SECTION 4.1.  Satisfaction and Discharge of Indenture.


                                                         - 31 -


<PAGE>



         This Indenture shall, upon Corporation Request,  cease to be of further
effect  (except  as to any  surviving  rights of  registration  of  transfer  or
exchange of Securities herein expressly  provided for and as otherwise  provided
in this  Section  4.1) and the  Trustee,  on demand of and at the expense of the
Corporation,  shall execute proper  instruments  acknowledging  satisfaction and
discharge of this Indenture, when

                  (1) either

                           (A)(1) all Securities  theretofore  authenticated and
                  delivered (other than (i) Securities that have been destroyed,
                  lost or stolen and that have been replaced or paid as provided
                  in Section 3.6 and (ii) Securities for whose payment money has
                  theretofore  been deposited in trust or segregated and held in
                  trust  by  the  Corporation  and  thereafter   repaid  to  the
                  Corporation  or  discharged  from such  trust,  as provided in
                  Section   10.3)  have  been   delivered  to  the  Trustee  for
                  cancellation; or

                         (B) all such  Securities not  theretofore  delivered to
                  the Trustee for cancellation

                                    (i) have become due and payable, or

                                    (ii) will  become  due and  payable at their
                           Stated  Maturity  within  one  year  of the  date  of
                           deposit, or

                                    (iii) are to be called for redemption within
                           one  year  under  arrangements  satisfactory  to  the
                           Trustee for the giving of notice of redemption by the
                           Trustee  in the  name,  and at  the  expense,  of the
                           Corporation, or

                                    (iv) are tendered for conversion pursuant to
                           Section 13.2,

         and the  Corporation,  in the case of subclause  (B)(i),  (ii) or (iii)
         above,  has  deposited  or caused to be  deposited  with the Trustee as
         trust  funds in trust for such  purpose  an amount in the  currency  or
         currencies in which the  Securities  are payable  sufficient to pay and
         discharge the entire  indebtedness  on such  Securities not theretofore
         delivered to the Trustee for cancellation,  for principal (and premium,
         if any)  and  interest  to the  date of such  deposit  (in the  case of
         Securities  that have become due and payable) or to the Stated Maturity
         or Redemption Date, as the case may be;

               (2) the  Corporation has paid or caused to be paid all other sums
          payable hereunder by the Corporation; and


                                                         - 32 -


<PAGE>



                  (3) the  Corporation has delivered to the Trustee an Officers'
         Certificate  and an Opinion of Counsel each stating that all conditions
         precedent   herein  provided  for  relating  to  the  satisfaction  and
         discharge of this Indenture have been complied with.

Notwithstanding   the  satisfaction   and  discharge  of  this  Indenture,   the
obligations of the Corporation to the Trustee under Section 6.7, the obligations
of the  Trustee to any  Authenticating  Agent under  Section  6.14 and, if money
shall have been deposited  with the Trustee  pursuant to subclause (B) of Clause
(1) of this Section 4.1, the  obligations  of the Trustee  under Section 4.2 and
the last paragraph of Section 10.3 shall survive.

         SECTION 4.2.  Application of Trust Money.

         Subject to the  provisions of the last  paragraph of Section 10.3,  all
money deposited with the Trustee  pursuant to Section 4.1 shall be held in trust
and applied by the Trustee,  in accordance with the provisions of the Securities
and this Indenture,  to the payment, either directly or through any Paying Agent
(including  the  Corporation  acting as its own Paying Agent) as the Trustee may
determine,  to the Persons entitled thereto,  of the principal (and premium,  if
any) and interest for the payment of which such money or  obligations  have been
deposited with or received by the Trustee.


                                    ARTICLE V

                                    REMEDIES

         SECTION 5.1.  Events of Default.

         "Event  of  Default",   wherever   used  herein  with  respect  to  the
Securities,  means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

                  (1) default in the payment of any  interest  upon any Security
         when it becomes due and payable,  and continuance of such default for a
         period of 30 days  (subject to the  deferral of any due date in respect
         of any interest in the case of an Extension Period); or

               (2) default in the payment of the  principal of (or  premium,  if
          any, on) any Security at its Maturity; or

                  (3) failure on the part of the Corporation  duly to observe or
         perform  in  any  material  respects  any  other  of the  covenants  or
         agreements on the part of the  Corporation in the Securities or in this
         Indenture for a period of 90 days after the date on which

                                                         - 33 -


<PAGE>



         written notice of such failure, requiring the Corporation to remedy the
         same and stating  that such notice is a "Notice of Default"  shall have
         been given by registered or certified  mail to the  Corporation  by the
         Trustee or to the  Corporation  and the  Trustee  by the  Holders of at
         least 25% in aggregate principal amount of the Outstanding  Securities;
         or

                  (4)  the  entry  of  a  decree  or  order  by a  court  having
         jurisdiction  in the premises  adjudging the  Corporation a bankrupt or
         insolvent,   or  approving  as  properly   filed  a  petition   seeking
         reorganization  of the  Corporation  under the  Bankruptcy  Code or any
         other similar  applicable  Federal or State law,  which decree or order
         shall have continued undischarged and unstayed for a period of 60 days;
         or the entry of a decree or order of a court having jurisdiction in the
         premises for the  appointment of a receiver or liquidator or trustee or
         assignee in  bankruptcy  or  insolvency  of the  Corporation  or of its
         property,  or for the winding up or liquidation  of its affairs,  which
         decree or order shall have  continued  undischarged  and unstayed for a
         period of 60 days; or

                  (5)  the   commencement   by  the   Corporation  of  voluntary
         proceedings  to be  adjudicated  a  bankrupt,  or  the  consent  by the
         Corporation to the filing of a bankruptcy proceeding against it, or the
         filing by the  Corporation  of a petition or answer or consent  seeking
         reorganization  under the Bankruptcy  Code or any other similar Federal
         or State law,  or the consent by the  Corporation  to the filing of any
         such petition,  or the consent by the Corporation to the appointment of
         a receiver  or  liquidator  or trustee or  assignee  in  bankruptcy  or
         insolvency of it or of its property,  or the making by the  Corporation
         of an assignment for the benefit of creditors,  or the admission by the
         Corporation  in writing of its inability to pay its debts  generally as
         they become due; or

               (6)  any  other  Event  of  Default   provided  with  respect  to
          Securities.

         SECTION 5.2.  Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default  (other  than an Event of Default  specified  in
Section  5.1(4) or 5.1(5)) with respect to  Securities  at the time  Outstanding
occurs and is continuing, then and in every such case the Trustee or the Holders
of not less than 25% in aggregate principal amount of the Outstanding Securities
may declare the  principal  amount of all the  Securities  to be due and payable
immediately,  by a notice in writing to the  Corporation  (and to the Trustee if
given by Holders),  provided that, if, upon an Event of Default,  the Trustee or
the  Holders  of not  less  than  25% in  principal  amount  of the  Outstanding
Securities fail to declare the principal of all the  Outstanding  Securities (or
specified portion thereof) to be immediately due and payable,  the holders of at
least 25% in  aggregate  Liquidation  Amount (as  defined in the  related  Trust
Agreement) of Capital  Securities  issued by such Issuer Trust then  outstanding
shall  have the right to make such  declaration  by a notice in  writing  to the
Corporation and the Trustee; and upon any such declaration such principal amount
(or specified portion thereof) of and the accrued interest on all the Securities
shall become  immediately due and payable.  If an Event of Default  specified in
Section  5.1(4) or 5.1(5) with  respect to  Securities  at the time  Outstanding
occurs,  the principal  amount of all the Securities and the accrued interest on
all the Securities shall

                                                         - 34 -


<PAGE>



automatically,  and without any  declaration  or other action on the part of the
Trustee or any Holder, become immediately due and payable.  Payment of principal
(and premium,  if any) and interest on such Securities shall remain subordinated
to the extent  provided in Article XII  notwithstanding  that such amount  shall
become immediately due and payable as herein provided.

         At any time after such a declaration  of  acceleration  with respect to
Securities  has been made and  before a judgment  or decree  for  payment of the
money due has been  obtained by the  Trustee as  hereinafter  in this  Article V
provided,  the  Holders  of a  majority  in  aggregate  principal  amount of the
Outstanding  Securities,  by written notice to the  Corporation and the Trustee,
may rescind and annul such declaration and its consequences if:

               (1) the  Corporation has paid or deposited with the Trustee a sum
          sufficient to pay:

                    (A) all overdue installments of interest on all Securities,

                    (B)  the  principal  of  (and  premium,   if  any,  on)  any
               Securities   that  have  become  due   otherwise   than  by  such
               declaration of acceleration, and

                    (C) all sums paid or advanced by the Trustee  hereunder  and
               the reasonable compensation, expenses, disbursements and advances
               of the Trustee, its agents and counsel; and

               (2) all Events of Default with respect to Securities,  other than
          the  non-payment  of the principal of  Securities  that has become due
          solely by such acceleration,  have been cured or waived as provided in
          Section 5.13.

         If the Holders of the  Securities  fail to annul such  declaration  and
waive such  default,  the  holders of a Majority  in  Liquidation  Amount of the
Capital  Securities (as defined in the related Trust  Agreement)  issued by such
Issuer Trust shall also have the right to rescind and annul such declaration and
its  consequences by written notice to the Corporation and the Trustee,  subject
to the  satisfaction of the conditions set forth in Clauses (1) and (2) above of
this Section 5.2.

         No such  rescission  shall affect any subsequent  default or impair any
right consequent thereon.

          SECTION 5.3.  Collection of Indebtedness  and Suits for Enforcement by
     Trustee.

         The Corporation covenants that if:

                  (1)  default  is made in the  payment  of any  installment  of
         interest on any Security when such interest becomes due and payable and
         such default continues for a period of 30 days, or


                                                         - 35 -


<PAGE>



               (2)  default  is  made in the  payment  of the  principal  of (or
          premium, if any, on) any Security at the Maturity thereof,

the Corporation  will, upon demand of the Trustee,  pay to the Trustee,  for the
benefit of the Holders of such Securities, the whole amount then due and payable
on such  Securities for principal (and premium,  if any),  including any sinking
fund payment or analogous obligations,  and interest,  and, in addition thereto,
all amounts owing to the Trustee under Section 6.7.

         If the  Corporation  fails  to pay such  amounts  forthwith  upon  such
demand,  the Trustee,  in its own name and as trustee of an express  trust,  may
institute  a  judicial  proceeding  for the  collection  of the  sums so due and
unpaid,  and may prosecute such proceeding to judgment or final decree,  and may
enforce  the same  against  the  Corporation  or any  other  obligor  upon  such
Securities  and  collect  the  moneys  adjudged  or decreed to be payable in the
manner  provided  by law out of the  property  of the  Corporation  or any other
obligor upon the Securities, wherever situated.

         If an Event  of  Default  with  respect  to  Securities  occurs  and is
continuing, the Trustee may in its discretion proceed to protect and enforce its
rights and the rights of the Holders of Securities by such appropriate  judicial
proceedings  as the Trustee shall deem most effectual to protect and enforce any
such rights,  whether for the specific  enforcement of any covenant or agreement
in this Indenture or in aid of the exercise of any power granted  herein,  or to
enforce any other proper remedy.

         SECTION 5.4.  Trustee May File Proofs of Claim.

         In  case  of any  receivership,  insolvency,  liquidation,  bankruptcy,
reorganization,   arrangement,   adjustment,   composition   or  other  judicial
proceeding  relative to the Corporation or any other obligor upon the Securities
or the property of the Corporation or of such other obligor or their creditors,

                  (a) the Trustee  (irrespective of whether the principal of the
         Securities  shall then be due and  payable as therein  expressed  or by
         declaration or otherwise and  irrespective of whether the Trustee shall
         have made any  demand on the  Corporation  for the  payment  of overdue
         principal  (or  premium,  if any) or  interest)  shall be entitled  and
         empowered, by intervention in such proceeding or otherwise,

                           (1) to file and prove a claim for the whole amount of
                  principal (and premium,  if any) and interest owing and unpaid
                  in respect of the  Securities and to file such other papers or
                  documents as may be necessary or advisable and to take any and
                  all actions as are authorized under the Trust Indenture Act in
                  order to have the claims of the Holders and any predecessor to
                  the Trustee  under  Section  6.7 allowed in any such  judicial
                  proceedings; and


                                                         - 36 -


<PAGE>



                           (2) in particular, the Trustee shall be authorized to
                  collect and receive  any moneys or other  property  payable or
                  deliverable  on any such claims and to distribute  the same in
                  accordance with Section 5.6; and

                  (b) any custodian,  receiver,  assignee, trustee,  liquidator,
         sequestrator   (or  other  similar   official)  in  any  such  judicial
         proceeding is hereby authorized by each Holder to make such payments to
         the Trustee for distribution in accordance with Section 5.6, and in the
         event that the  Trustee  shall  consent to the making of such  payments
         directly to the Holders, to pay to the Trustee any amount due to it and
         any predecessor Trustee under Section 6.7.

         Nothing  herein  contained  shall be deemed to authorize the Trustee to
authorize  or  consent to or accept or adopt on behalf of any Holder any plan of
reorganization,  arrangement, adjustment or composition affecting the Securities
or the rights of any Holder  thereof,  or to  authorize  the  Trustee to vote in
respect of the claim of any Holder in any such  proceeding;  provided,  however,
that the  Trustee  may,  on behalf of the  Holders,  vote for the  election of a
trustee in  bankruptcy  or similar  official and be a member of a creditors'  or
other similar committee.

         SECTION 5.5.  Trustee May Enforce Claim Without Possession of 
Securities.

         All rights of action and claims under this  Indenture or the Securities
may be prosecuted  and enforced by the Trustee  without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such  proceeding  instituted by the Trustee shall be brought in its own name
as trustee of an express trust,  and any recovery of judgment shall,  subject to
Article XII and after  provision  for the  payment of all the amounts  owing the
Trustee and any  predecessor  Trustee under Section 6.7, its agents and counsel,
be for the ratable  benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

         SECTION 5.6.  Application of Money Collected.

         Any money or property  collected  or to be applied by the Trustee  with
respect  to  Securities  pursuant  to this  Article  V shall be  applied  in the
following  order,  at the date or dates fixed by the Trustee and, in case of the
distribution  of such money or property on account of principal (or premium,  if
any) or interest,  upon  presentation of the Securities and the notation thereon
of the payment if only partially paid and upon surrender thereof if fully paid:

               FIRST:  To the  payment of all  amounts  due the  Trustee and any
          predecessor Trustee under Section 6.7;

               SECOND:  Subject to Article  XII,  to the  payment of the amounts
          then due and unpaid upon Securities of principal (and premium, if any)
          and  interest  in  respect  of which or for the  benefit of which such
          money has been collected, ratably, without preference

                                                         - 37 -


<PAGE>



          or priority of any kind,  according  to the amounts due and payable on
          such  Securities  for principal  (and  premium,  if any) and interest,
          respectively; and

               THIRD:  The  balance,  if any, to the Person or Persons  entitled
          thereto.

         SECTION 5.7.  Limitation on Suits.

         Subject  to Section  5.8,  no Holder of any  Securities  shall have any
right to institute any proceeding,  judicial or otherwise,  with respect to this
Indenture or for the appointment of a receiver, assignee, trustee, liquidator or
sequestrator  (or other  similar  official) or for any other  remedy  hereunder,
unless:

               (1) such  Holder  has  previously  given  written  notice  to the
          Trustee  of  a  continuing  Event  of  Default  with  respect  to  the
          Securities;

               (2) the  Holders  of not  less  than 25% in  aggregate  principal
          amount of the Outstanding  Securities  shall have made written request
          to the Trustee to  institute  proceedings  in respect of such Event of
          Default in its own name as Trustee hereunder;

               (3) such Holder or Holders have offered to the Trustee reasonable
          indemnity  against the costs,  expenses and liabilities to be incurred
          in compliance with such request;

               (4) the  Trustee  for 60 days after its  receipt of such  notice,
          request  and  offer of  indemnity  has  failed to  institute  any such
          proceeding; and

               (5) no direction  inconsistent with such written request has been
          given to the Trustee  during  such  60-day  period by the Holders of a
          majority in aggregate principal amount of the Outstanding Securities;

it being  understood and intended that no one or more of such Holders shall have
any right in any manner  whatever  by virtue of, or by  availing  itself of, any
provision of this  Indenture to affect,  disturb or prejudice  the rights of any
other  Holders  of  Securities,  or to obtain or to seek to obtain  priority  or
preference  over any other of such  Holders or to enforce  any right  under this
Indenture,  except in the manner  herein  provided and for the equal and ratable
benefit of all such Holders.

          SECTION  5.8.  Unconditional  Right of Holders  to Receive  Principal,
     Premium and Interest; Direct Action by Holders of Capital Securities.

         Notwithstanding  any other provision in this  Indenture,  the Holder of
any  Security  shall have the right,  which is absolute  and  unconditional,  to
receive  payment of the  principal  of (and  premium,  if any) and  (subject  to
Sections  3.7 and 3.11)  interest  on such  Security  on the  respective  Stated
Maturities  expressed in such  Security (or, in the case of  redemption,  on the
Redemption  Date) and to institute suit for the enforcement of any such payment,
and such right

                                                         - 38 -


<PAGE>



shall not be impaired without the consent of such Holder.  Any registered holder
of Capital  Securities shall have the right,  upon the occurrence of an Event of
Default  described in Section  5.1(1) or 5.1(2),  to  institute a suit  directly
against the  Corporation  for enforcement of payment to such holder of principal
of  (premium,  if any) and  (subject to Sections  3.7 and 3.11)  interest on the
Securities having a principal amount equal to the aggregate  Liquidation  Amount
(as defined in the related Trust  Agreement) of such Capital  Securities held by
such holder.

         SECTION 5.9.  Restoration of Rights and Remedies.

         If the Trustee,  any Holder or any holder of Capital  Securities issued
by any Issuer Trust has instituted any proceeding to enforce any right or remedy
under this Indenture and such proceeding has been  discontinued or abandoned for
any reason, or has been determined adversely to the Trustee, such Holder or such
holder of Capital Securities,  then and in every such case the Corporation,  the
Trustee,  such Holders and such holder of Capital  Securities shall,  subject to
any determination in such proceeding,  be restored severally and respectively to
their former positions hereunder,  and thereafter all rights and remedies of the
Trustee,  such Holder and such holder of Capital  Securities  shall  continue as
though no such proceeding had been instituted.

         SECTION 5.10.  Rights and Remedies Cumulative.

         Except as otherwise  provided in the last  paragraph of Section 3.6, no
right or remedy herein  conferred upon or reserved to the Trustee or the Holders
is intended to be  exclusive  of any other right or remedy,  and every right and
remedy shall,  to the extent  permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or  otherwise.  The  assertion or employment of any right or remedy
hereunder,  or  otherwise,   shall  not  prevent  the  concurrent  assertion  or
employment of any other appropriate right or remedy.

         SECTION 5.11.  Delay or Omission Not Waiver.

         No delay or omission of the Trustee,  any Holder of any Security or any
holder of any Capital Security to exercise any right or remedy accruing upon any
Event of Default with respect to the  Securities  shall impair any such right or
remedy or  constitute  a waiver of any such Event of Default or an  acquiescence
therein.

         Every right and remedy given by this Article V or by law to the Trustee
or to the  Holders  and the right and  remedy  given to the  holders  of Capital
Securities  by Section 5.8 may be exercised  from time to time,  and as often as
may be deemed expedient,  by the Trustee,  the Holders or the holders of Capital
Securities, as the case may be.


                                                         - 39 -


<PAGE>



         SECTION 5.12.  Control by Holders.

         The Holders of not less than a majority in aggregate  principal  amount
of the Outstanding  Securities  shall have the right to direct the time,  method
and place of conducting any  proceeding for any remedy  available to the Trustee
or exercising any trust or power  conferred on the Trustee,  with respect to the
Securities, provided that:

          (1) such  direction  shall not be in conflict  with any rule of law or
     with this Indenture,

          (2) the Trustee may take any other action deemed proper by the Trustee
     that is not inconsistent with such direction, and

          (3) subject to the  provisions  of Section 6.1, the Trustee shall have
     the right to decline to follow such  direction if a Responsible  Officer or
     Officers of the Trustee shall, in good faith, determine that the proceeding
     so directed would be unjustly prejudicial to the Holders not joining in any
     such direction or would involve the Trustee in personal liability.

         SECTION 5.13.  Waiver of Past Defaults.

         The Holders of not less than a majority in aggregate  principal  amount
of the Outstanding Securities affected thereby and, the holders of a Majority in
Liquidation  Amount of the Capital  Securities  (as defined in the related Trust
Agreement)  issued by such Issuer  Trust may waive any past  default or Event of
Default  hereunder and its consequences with respect to such Securities except a
default:

                  (1) in the payment of the principal of (or premium, if any) or
         interest on any  Security  (unless  such default has been cured and the
         Corporation  has paid to or deposited with the Trustee a sum sufficient
         to pay all matured  installments  of interest and all principal of (and
         premium,   if  any,  on)  all   Securities   due   otherwise   than  by
         acceleration), or

                  (2) in respect of a covenant  or  provision  hereof that under
         Article IX cannot be  modified  or amended  without the consent of each
         Holder of any Outstanding Security affected.

         Any such  waiver  shall be deemed to be on behalf of the Holders of all
the  Securities  and in the case of a waiver by holders  of  Capital  Securities
issued by the Issuer Trust, by the holders of all the Capital  Securities issued
by such Issuer Trust.

         Upon any such waiver,  such default or Event of Default  shall cease to
exist, and any default or Event of Default arising  therefrom shall be deemed to
have been cured, for every

                                                         - 40 -


<PAGE>



purpose of this Indenture;  but no such waiver shall extend to any subsequent or
other default or Event of Default or impair any right consequent thereon.

         SECTION 5.14.  Undertaking for Costs.

         All parties to this Indenture  agree,  and each Holder of any Security,
by its acceptance thereof, shall be deemed to have agreed, that any court may in
its discretion  require,  in any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken or
omitted by it as  Trustee,  the filing by any party  litigant in such suit of an
undertaking  to pay the  costs of such  suit,  and that  such  court  may in its
discretion  assess  reasonable  costs,  including  reasonable  attorneys'  fees,
against  any party  litigant  in such suit,  having due regard to the merits and
good  faith of the  claims or  defenses  made by such  party  litigant;  but the
provisions  of this Section 5.14 shall not apply to any suit  instituted  by the
Trustee, to any suit instituted by any Holder or group of Holders holding in the
aggregate  more  than  10% in  aggregate  principal  amount  of the  Outstanding
Securities,  or to any suit  instituted by any Holder for the enforcement of the
payment of the principal of (or premium,  if any) or interest on any Security on
or after the respective Stated Maturities expressed in such Security.

         SECTION 5.15.  Waiver of Usury, Stay or Extension Laws.

         The  Corporation  covenants  (to the extent that it may lawfully do so)
that it will not at any time insist upon, or plead, or in any manner  whatsoever
claim or take the benefit or  advantage  of, any usury,  stay or  extension  law
wherever  enacted,  now or at any time hereafter in force,  which may affect the
covenants or the  performance of this  Indenture;  and the  Corporation  (to the
extent  that it may  lawfully  do so) hereby  expressly  waives  all  benefit or
advantage  of any such law,  and  covenants  that it will not  hinder,  delay or
impede the execution of any power herein granted to the Trustee, but will suffer
and  permit  the  execution  of every  such power as though no such law had been
enacted.


                                   ARTICLE VI

                                   THE TRUSTEE

         SECTION 6.1.  Certain Duties and Responsibilities.

         (a) Except during the continuance of an Event of Default,

                  (1) the  Trustee  undertakes  to perform  such duties and only
         such duties as are  specifically  set forth in this  Indenture,  and no
         implied  covenants  or  obligations  shall be read into this  Indenture
         against the Trustee; and

                  (2) in the  absence of bad faith on its part,  the Trustee may
         conclusively   rely,  as  to  the  truth  of  the  statements  and  the
         correctness of the opinions expressed therein, upon

                                                         - 41 -


<PAGE>



         certificates or opinions furnished to the Trustee and conforming to the
         requirements  of  this   Indenture;   but  in  the  case  of  any  such
         certificates or opinions that by any provisions hereof are specifically
         required to be furnished to the Trustee,  the Trustee  shall be under a
         duty to examine the same to  determine  whether or not they  conform to
         the requirements of this Indenture.

         (b) If an Event of Default has occurred and is continuing,  the Trustee
shall exercise such of the rights and powers vested in it by this Indenture, and
use the same  degree of care and skill in their  exercise,  as a prudent  person
would exercise or use under the  circumstances  in the conduct of his or her own
affairs.

         (c) No  provision of this  Indenture  shall be construed to relieve the
Trustee from liability for its own negligent  action,  its own negligent failure
to act, or its own wilful misconduct except that:

               (1) this Subsection shall not be construed to limit the effect of
          Subsection (a) of this Section 6.1;

               (2) the  Trustee  shall not be liable  for any error of  judgment
          made in good faith by a Responsible Officer, unless it shall be proved
          that the Trustee was negligent in  ascertaining  the pertinent  facts;
          and

               (3) the Trustee  shall not be liable  with  respect to any action
          taken or omitted to be taken by it in good  faith in  accordance  with
          the  direction  of Holders  pursuant to Section  5.12  relating to the
          time,  method and place of conducting  any  proceeding  for any remedy
          available to the Trustee,  or exercising any trust or power  conferred
          upon the Trustee, under this Indenture with respect to the Securities.

         (d) No provision of this Indenture  shall require the Trustee to expend
or risk  its own  funds  or  otherwise  incur  any  financial  liability  in the
performance  of any of its duties  hereunder,  or in the  exercise of any of its
rights or powers,  if there  shall be  reasonable  grounds  for  believing  that
repayment of such funds or adequate  indemnity against such risk or liability is
not reasonably assured to it.

         (e) Whether or not therein  expressly so provided,  every  provision of
this  Indenture  relating  to the  conduct  or  affecting  the  liability  of or
affording  protection to the Trustee shall be subject to the  provisions of this
Section 6.1.

         SECTION 6.2.  Notice of Defaults.

         Within 30 days after actual  knowledge by a Responsible  Officer of the
Trustee  of  the  occurrence  of  any  default  hereunder  with  respect  to the
Securities,  the Trustee shall transmit by mail to all Holders of Securities, as
their names and  addresses  appear in the  Securities  Register,  notice of such
default, unless such default shall have been cured or waived; provided, however,

                                                         - 42 -


<PAGE>



that,  except in the case of a default in the  payment of the  principal  of (or
premium, if any) or interest on any Security,  the Trustee shall be protected in
withholding such notice if and so long as the board of directors,  the executive
committee or a trust committee of directors and/or  Responsible  Officers of the
Trustee in good faith  determines  that the withholding of such notice is in the
interests of the Holders of Securities;  and provided further, however, that, in
the case of any default of the character  specified in Section  5.1(3),  no such
notice to Holders of Securities  shall be given until at least 30 days after the
occurrence  thereof.  For the purpose of this Section  6.2,  the term  "default"
means any event that is, or after notice or lapse of time or both would  become,
an Event of Default with respect to Securities.

         SECTION 6.3.  Certain Rights of Trustee.

         Subject to the provisions of Section 6.1:

         (a) the Trustee may rely and shall be protected in acting or refraining
from acting upon any resolution,  certificate,  statement,  instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, Security or
other paper or document  believed by it to be genuine and to have been signed or
presented by the proper party or parties;

         (b) any request or direction of the Corporation  mentioned herein shall
be sufficiently  evidenced by a Corporation Request or Corporation Order and any
resolution  of the Board of Directors may be  sufficiently  evidenced by a Board
Resolution;

         (c) whenever in the  administration of this Indenture the Trustee shall
deem it  desirable  that a matter  be  proved or  established  prior to  taking,
suffering or omitting any action  hereunder,  the Trustee (unless other evidence
be herein specifically prescribed) may, in the absence of bad faith on its part,
rely upon an Officers' Certificate;

         (d) the Trustee may consult with counsel and the advice of such counsel
or any  Opinion  of  Counsel  shall  be  full  and  complete  authorization  and
protection in respect of any action  taken,  suffered or omitted by it hereunder
in good faith and in reliance thereon;

         (e) the Trustee  shall be under no  obligation  to exercise  any of the
rights or powers  vested in it by this  Indenture at the request or direction of
any of the Holders  pursuant to this  Indenture,  unless such Holders shall have
offered to the  Trustee  reasonable  security  or  indemnity  against the costs,
expenses and  liabilities  that might be incurred by it in  complying  with such
request or direction;

         (f) the Trustee shall not be bound to make any  investigation  into the
facts or matters stated in any resolution,  certificate,  statement, instrument,
opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
Security or other paper or document,  but the Trustee in its discretion may make
such inquiry or investigation into such facts or matters as it may see fit; and


                                                         - 43 -


<PAGE>



         (g) the Trustee may  execute any of the trusts or powers  hereunder  or
perform  any  duties  hereunder  either  directly  or by or  through  agents  or
attorneys  and the  Trustee  shall  not be  responsible  for any  misconduct  or
negligence  on the part of any agent or attorney  appointed  by it with due care
hereunder.

         SECTION 6.4.  Not Responsible for Recitals or Issuance of Securities.

         The  recitals  contained  herein  and in  the  Securities,  except  the
Trustee's  certificates of  authentication,  shall be taken as the statements of
the Corporation,  and neither the Trustee nor any  Authenticating  Agent assumes
any responsibility  for their correctness.  The Trustee makes no representations
as to the  validity  or  sufficiency  of this  Indenture  or of the  Securities.
Neither the Trustee nor any  Authenticating  Agent shall be accountable  for the
use or application by the Corporation of the Securities or the proceeds thereof.

         SECTION 6.5.  May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Securities
Registrar or any other agent of the Corporation,  in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Sections
6.8 and 6.13,  may otherwise deal with the  Corporation  with the same rights it
would  have  if  it  were  not  Trustee,  Authenticating  Agent,  Paying  Agent,
Securities Registrar or such other agent.

         SECTION 6.6.  Money Held in Trust.

         Money held by the  Trustee in trust  hereunder  need not be  segregated
from other  funds  except to the extent  required  by law  (including  the Trust
Indenture  Act).  The Trustee  shall be under no  liability  for interest on any
money received by it hereunder except as otherwise agreed with the Corporation.

         SECTION 6.7.  Compensation and Reimbursement.

         The Corporation agrees:

                  (1) to pay to the  Trustee  from time to time such  reasonable
         compensation for all services  rendered by it hereunder in such amounts
         as the Corporation and the Trustee shall agree from time to time (which
         compensation  shall not be limited by any provision of law in regard to
         the compensation of a trustee of an express trust);

                  (2)  to  reimburse  the  Trustee  upon  its  request  for  all
         reasonable expenses, disbursements and advances incurred or made by the
         Trustee in accordance  with any provision of this Indenture  (including
         the reasonable  compensation and the expenses and  disbursements of its
         agents and counsel),  except any such expense,  disbursement or advance
         as may be attributable to its negligence or bad faith; and


                                                         - 44 -


<PAGE>



                  (3) to  indemnify  the  Trustee  for,  and to hold it harmless
         against,  any loss,  liability  or expense  (including  the  reasonable
         compensation  and the  expenses  and  disbursements  of its  agents and
         counsel) incurred without  negligence,  wilful misconduct or bad faith,
         arising out of or in connection  with the acceptance or  administration
         of this trust or the performance of its duties hereunder, including the
         costs and expenses of defending  itself  against any claim or liability
         in connection  with the exercise or performance of any of its powers or
         duties hereunder. This indemnification shall survive the termination of
         this Indenture.

         When the Trustee incurs expenses or renders  services after an Event of
Default  specified  in Section  5.1(4) or 5.1(5)  occurs,  the  expenses and the
compensation   for  the  services  are  intended  to   constitute   expenses  of
administration under the Bankruptcy Code.

         SECTION 6.8.  Disqualification; Conflicting Interests.

         (a) The Trustee for the  Securities  shall be subject to the provisions
of Section 310(b) of the Trust  Indenture Act.  Nothing herein shall prevent the
Trustee  from  filing with the  Commission  the  application  referred to in the
second to last paragraph of said Section 310(b).

         (b) The Trust  Agreement  and the Guarantee  Agreement  with respect to
each Issuer Trust shall be deemed to be specifically described in this Indenture
for the purposes of clause (i) of the first proviso  contained in Section 310(b)
of the Trust Indenture Act.

         SECTION 6.9.  Corporate Trustee Required; Eligibility.

         There shall at all times be a Trustee hereunder which shall be:

                  (a) a corporation  organized and doing business under the laws
         of the United States of America or of any State or Territory thereof or
         the  District  of  Columbia,  authorized  under  such laws to  exercise
         corporate  trust powers and subject to  supervision  or  examination by
         Federal, State, Territorial or District of Columbia authority, or

                  (b) a corporation or other Person organized and doing business
         under  the laws of a foreign  government  that is  permitted  to act as
         Trustee  pursuant  to a rule,  regulation  or order of the  Commission,
         authorized  under such laws to exercise  corporate  trust  powers,  and
         subject to  supervision  or  examination  by  authority of such foreign
         government or a political subdivision thereof substantially  equivalent
         to supervision or examination applicable to United States institutional
         trustees,

in either case having at the time of appointment  securities rated in one of the
three highest rating categories by a nationally  recognized  statistical  rating
organization and a combined capital and surplus of at least $50,000,000. If such
corporation publishes reports of condition at least annually, pursuant to law or
to the requirements of the aforesaid  supervising or examining authority,  then,
for the purposes of this Section 6.9 and to the extent permitted by the Trust

                                                         - 45 -


<PAGE>



Indenture  Act, the combined  capital and surplus of such  corporation  shall be
deemed to be its  combined  capital  and surplus as set forth in its most recent
report of condition so  published.  If at any time the Trustee shall cease to be
eligible in accordance  with the provisions of this Section 6.9, it shall resign
immediately  in the  manner and with the effect  hereinafter  specified  in this
Article  VI.  Neither the  Corporation  nor any Person  directly  or  indirectly
controlling,  controlled by or under common control with the  Corporation  shall
serve as Trustee for the Securities.

         SECTION 6.10.  Resignation and Removal; Appointment of Successor.

         (a) No  resignation  or removal of the Trustee and no  appointment of a
successor  Trustee  pursuant to this Article VI shall become effective until the
acceptance of appointment by the successor Trustee under Section 6.11.

         (b) The Trustee may resign at any time with  respect to the  Securities
by giving  written  notice  thereof  to the  Corporation.  If an  instrument  of
acceptance by a successor  Trustee shall not have been  delivered to the Trustee
within 30 days after the giving of such  notice of  resignation,  the  resigning
Trustee may petition any court of competent  jurisdiction for the appointment of
a successor Trustee with respect to the Securities.

         (c)  The  Trustee  may be  removed  at any  time  with  respect  to the
Securities by Act of the Holders of a majority in aggregate  principal amount of
the Outstanding Securities, delivered to the Trustee and to the Corporation.

         (d) If at any time:

         (1) the  Trustee  shall fail to comply with  Section 6.8 after  written
request  therefor by the  Corporation  or by any Holder who has been a bona fide
Holder of a Security for at least six months, or

         (2) the Trustee shall cease to be eligible  under Section 6.9 and shall
fail to resign after written request  therefor by the Corporation or by any such
Holder, or

         (3) the Trustee shall become incapable of acting or shall be adjudged a
bankrupt or insolvent  or a receiver of the Trustee or of its property  shall be
appointed or any public  officer  shall take charge or control of the Trustee or
of its property or affairs for the purpose of  rehabilitation,  conservation  or
liquidation,

then, in any such case, (i) the Corporation, acting pursuant to the authority of
a Board  Resolution,  may remove the Trustee with respect to the Securities,  or
(ii)  subject to Section  5.14,  any Holder who has been a bona fide Holder of a
Security  for at least six months  may,  on behalf of such Holder and all others
similarly situated, petition any court of competent jurisdiction for the removal
of the Trustee with respect to the Securities and the appointment of a successor
Trustee or Trustees.

                                                         - 46 -


<PAGE>




         (e) If the Trustee  shall  resign,  be removed or become  incapable  of
acting,  or if a vacancy shall occur in the office of Trustee for any cause with
respect  to the  Securities,  the  Corporation,  by a  Board  Resolution,  shall
promptly appoint a successor Trustee with respect to the Securities.  If, within
one year after such resignation,  removal or incapability,  or the occurrence of
such  vacancy,  a successor  Trustee  with  respect to the  Securities  shall be
appointed by Act of the Holders of a majority in aggregate  principal  amount of
the  Outstanding  Securities  delivered  to the  Corporation  and  the  retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance
of such appointment, become the successor Trustee with respect to the Securities
and  supersede  the  successor  Trustee  appointed  by  the  Corporation.  If no
successor Trustee with respect to the Securities shall have been so appointed by
the  Corporation  or  the  Holders  and  accepted   appointment  in  the  manner
hereinafter  provided,  any Holder who has been a bona fide Holder of a Security
for at least six months may,  subject to Section  5.14, on behalf of such Holder
and all others similarly situated,  petition any court of competent jurisdiction
for the appointment of a successor Trustee with respect to the Securities.

         (f) The  Corporation  shall give  notice of each  resignation  and each
removal of the Trustee with respect to the Securities and each  appointment of a
successor  Trustee with respect to the  Securities by mailing  written notice of
such event by first-class mail, postage prepaid, to the Holders of Securities as
their names and addresses appear in the Securities  Register.  Each notice shall
include the name of the successor Trustee with respect to the Securities and the
address of its Corporate Trust Office.

         SECTION 6.11.  Acceptance of Appointment by Successor.

         (a) In case of the  appointment  hereunder of a successor  Trustee with
respect to all  Securities,  every such  successor  Trustee so  appointed  shall
execute,  acknowledge and deliver to the Corporation and to the retiring Trustee
an instrument  accepting  such  appointment,  and thereupon the  resignation  or
removal of the  retiring  Trustee  shall  become  effective  and such  successor
Trustee,  without any further act, deed or conveyance,  shall become vested with
all the rights,  powers,  trusts and duties of the retiring Trustee; but, on the
request of the  Corporation  or the successor  Trustee,  such  retiring  Trustee
shall,  upon  payment  of  its  charges,   execute  and  deliver  an  instrument
transferring to such successor Trustee all the rights,  powers and trusts of the
retiring  Trustee and shall duly assign,  transfer and deliver to such successor
Trustee all property and money held by such retiring Trustee hereunder.

         (b) In case of the  appointment  hereunder of a successor  Trustee with
respect to the  Securities,  the  Corporation,  the  retiring  Trustee  and each
successor  Trustee with respect to the  Securities  shall execute and deliver an
indenture  supplemental  hereto wherein each successor Trustee shall accept such
appointment and which (1) shall contain such provisions as shall be necessary or
desirable to transfer and confirm to, and to vest in, each successor Trustee all
the rights,  powers,  trusts and duties of the retiring  Trustee with respect to
the Securities,  (2) if the retiring Trustee is not retiring with respect to all
Securities,  shall  contain  such  provisions  as shall be deemed  necessary  or
desirable  to  confirm  that all the  rights,  powers,  trusts and duties of the
retiring Trustee with respect to the Securities,  and (3) shall add to or change
any of the

                                                         - 47 -


<PAGE>



provisions of this  Indenture as shall be necessary to provide for or facilitate
the  administration  of the trusts hereunder by more than one Trustee,  it being
understood  that  nothing  herein  or  in  such  supplemental   indenture  shall
constitute  such  Trustees  co-trustees  of the same  trust  and that  each such
Trustee shall be trustee of a trust or trusts hereunder  separate and apart from
any trust or trusts hereunder  administered by any other such Trustee;  and upon
the execution and delivery of such  supplemental  indenture the  resignation  or
removal of the retiring  Trustee shall become  effective to the extent  provided
therein  and each such  successor  Trustee,  without any  further  act,  deed or
conveyance,  shall become vested with all the rights,  powers, trusts and duties
of the retiring  Trustee with respect to the Securities;  but, on request of the
Corporation or any successor  Trustee,  such retiring Trustee shall duly assign,
transfer  and deliver to such  successor  Trustee all property and money held by
such retiring Trustee hereunder with respect to the Securities.

         (c) Upon request of any such successor  Trustee,  the Corporation shall
execute  any and all  instruments  for more fully and  certainly  vesting in and
confirming to such successor  Trustee all rights,  powers and trusts referred to
in paragraph (a) or (b) of this Section 6.11, as the case may be.

         (d) No successor  Trustee  shall accept its  appointment  unless at the
time of such acceptance  such successor  Trustee shall be qualified and eligible
under this Article VI.

     SECTION 6.12. Merger, Conversion, Consolidation or Succession to Business.

         Any  corporation  into which the Trustee may be merged or  converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion  or  consolidation  to which  the  Trustee  shall be a party,  or any
corporation  succeeding  to all or  substantially  all  of the  corporate  trust
business of the Trustee, shall be the successor Trustee hereunder, provided such
corporation  shall be otherwise  qualified  and eligible  under this Article VI,
without the  execution  or filing of any paper or any further act on the part of
any of the parties hereto. If any Securities shall have been authenticated,  but
not  delivered,  by the  Trustee  then  in  office,  any  successor  by  merger,
conversion  or  consolidation  to such  authenticating  Trustee  may adopt  such
authentication  and  deliver  the  Securities  so  authenticated,   and  if  any
Securities shall not have been  authenticated,  any successor to the Trustee may
authenticate such Securities either in the name of any predecessor Trustee or in
the  name of  such  successor  Trustee,  and in all  cases  the  certificate  of
authentication  shall have the full force which it is  provided  anywhere in the
Securities or in this Indenture that the certificate of the Trustee shall have.

         SECTION 6.13.  Preferential Collection of Claims Against Corporation.

         If  and  when  the  Trustee  shall  be or  become  a  creditor  of  the
Corporation  (or any other  obligor upon the  Securities),  the Trustee shall be
subject to the provisions of the Trust Indenture Act regarding the collection of
claims against the Corporation (or any such other obligor).


                                                         - 48 -


<PAGE>



         SECTION 6.14.  Appointment of Authenticating Agent.

         The Trustee may appoint an Authenticating  Agent or Agents with respect
to the Securities,  which shall be authorized to act on behalf of the Trustee to
authenticate  the  Securities  issued  upon  original  issue and upon  exchange,
registration  of transfer or partial  redemption  thereof or pursuant to Section
3.5, and Securities so  authenticated  shall be entitled to the benefits of this
Indenture and shall be valid and obligatory for all purposes as if authenticated
by the Trustee  hereunder.  Wherever  reference is made in this Indenture to the
authentication  and delivery of  Securities  by the Trustee or to the  Trustee's
certificate  of  authentication,  such  reference  shall be  deemed  to  include
authentication and delivery on behalf of the Trustee by an Authenticating  Agent
or the Authenticating  Agent's  certificate of authentication set forth for this
Section 6.14. Each  Authenticating  Agent shall be acceptable to the Corporation
and shall at all times be a corporation  organized and doing  business under the
laws of the United States of America or of any State or Territory thereof or the
District of Columbia, authorized under such laws to act as Authenticating Agent,
having a combined  capital and surplus of not less than  $50,000,000 and subject
to  supervision or  examination  by Federal,  State,  Territorial or District of
Columbia authority.  If such Authenticating Agent publishes reports of condition
at least  annually,  pursuant  to law or to the  requirements  of the  aforesaid
supervising or examining  authority,  then for the purposes of this Section 6.14
and to the extent permitted by the Trust Indenture Act, the combined capital and
surplus of such Authenticating  Agent shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published. If
at any time an  Authenticating  Agent shall  cease to be eligible in  accordance
with the provisions of this Section 6.14, such Authenticating Agent shall resign
immediately in the manner and with the effect specified in this Section 6.14.

         Any  corporation  into which an  Authenticating  Agent may be merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation  succeeding to all or substantially  all of
the corporate trust business of an Authenticating  Agent, shall be the successor
Authenticating  Agent hereunder,  provided such  corporation  shall be otherwise
qualified and eligible under this Section 6.14,  without the execution or filing
of any paper or any further act on the part of the Trustee or the Authenticating
Agent.

         An Authenticating Agent may resign at any time by giving written notice
thereof to the  Trustee  and to the  Corporation.  The  Trustee  may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such  Authenticating  Agent and to the  Corporation.  Upon  receiving  such a
notice of resignation  or upon such a  termination,  or in case at any time such
Authenticating  Agent  shall  cease  to  be  eligible  in  accordance  with  the
provisions  of  this  Section   6.14,   the  Trustee  may  appoint  a  successor
Authenticating  Agent,  which shall be acceptable to the  Corporation  and shall
give  notice of such  appointment  in the manner  provided in Section 1.6 to all
Holders of  Securities  with  respect to which  such  Authenticating  Agent will
serve.  Any successor  Authenticating  Agent upon  acceptance of its appointment
hereunder  shall  become  vested with all the  rights,  powers and duties of its
predecessor

                                                         - 49 -


<PAGE>



hereunder,  with like effect as if originally named as an Authenticating  Agent.
No successor  Authenticating  Agent shall be appointed unless eligible under the
provision of this Section 6.14.

         The  Trustee  agrees to pay to each  Authenticating  Agent from time to
time reasonable  compensation  for its services under this Section 6.14, and the
Trustee shall be entitled to be  reimbursed  for such  payments,  subject to the
provisions of Section 6.7.

         If an appointment is made pursuant to this Section 6.14, the Securities
may  have  endorsed  thereon,  in  addition  to  the  Trustee's  certificate  of
authentication,  an alternative  certificate of  authentication in the following
form:

         This is one of the  Securities  designated  therein  referred to in the
within mentioned Indenture.


Dated:  ___________________                -------------------
                                            as Trustee


                                             By: ------------------
                                             As Authenticating Agent


                                             By:-------------------
                                             Authorized Officer


                                   ARTICLE VII

              HOLDER'S LISTS AND REPORTS BY TRUSTEE AND CORPORATION

    SECTION 7.1.  Corporation to Furnish Trustee Names and Addresses of Holders.

         The Corporation will furnish or cause to be furnished to the Trustee:

                  (a)  semi-annually,  on or before  January 1 or July 1 of each
         year, a list, in such form as the Trustee may  reasonably  require,  of
         the names and  addresses  of the  Holders as of a date not more than 15
         days prior to the delivery thereof, and

                  (b) at such other times as the Trustee may request in writing,
         within  30 days  after  the  receipt  by the  Corporation  of any  such
         request,  a list of similar form and content as of a date not more than
         15 days prior to the time such list is furnished,


                                                         - 50 -


<PAGE>



in each case to the extent such  information  is in the possession or control of
the  Corporation  and has not  otherwise  been  received  by the  Trustee in its
capacity as Securities Registrar.

         SECTION 7.2.  Preservation of Information, Communications to Holders.

         (a) The Trustee shall  preserve,  in as current a form as is reasonably
practicable,  the names and  addresses  of Holders  contained in the most recent
list  furnished  to the  Trustee as  provided  in Section  7.1 and the names and
addresses  of Holders  received  by the Trustee in its  capacity  as  Securities
Registrar.  The  Trustee may  destroy  any list  furnished  to it as provided in
Section 7.1 upon receipt of a new list so furnished.

         (b) The rights of  Holders  to  communicate  with  other  Holders  with
respect to their rights under this  Indenture or under the  Securities,  and the
corresponding rights and privileges of the Trustee,  shall be as provided in the
Trust Indenture Act.

         (c) Every Holder of Securities,  by its acceptance thereof, agrees with
the Corporation and the Trustee that neither the Corporation nor the Trustee nor
any  agent  of  either  of them  shall  be held  accountable  by  reason  of the
disclosure  of  information  as to the names and  addresses  of the Holders made
pursuant to the Trust Indenture Act.

         SECTION 7.3.  Reports by Trustee.

         (a) The Trustee shall  transmit to Holders such reports  concerning the
Trustee and its actions under this Indenture as may be required  pursuant to the
Trust Indenture Act, at the times and in the manner provided pursuant thereto.

         (b) Reports so required to be  transmitted  at stated  intervals of not
more than 12 months shall be  transmitted no later than July 15 in each calendar
year,  commencing  with the first July 15 after the first issuance of Securities
under this Indenture.

         (c) If this  Indenture  shall  have  been  qualified  under  the  Trust
Indenture  Act,  a copy  of  each  such  report  shall,  at  the  time  of  such
transmission to Holders,  be filed by the Trustee with each securities  exchange
upon  which  any  Securities  are  listed  and  also  with the  Commission.  The
Corporation  will  notify  the  Trustee  when any  Securities  are listed on any
securities exchange.

         SECTION 7.4.  Reports by Corporation.

         The  Corporation  shall file with the Trustee and with the  Commission,
and transmit to the Holders, such information,  documents and other reports, and
such summaries  thereof,  as may be required pursuant to the Trust Indenture Act
at the times and in the manner  provided in the Trust  Indenture  Act;  provided
that any such  information,  documents or reports  required to be filed with the
Commission  pursuant to Section 13 or Section 15(d) of the Exchange Act shall be
filed with the  Trustee  within 15 days after the same is  required  to be filed
with the Commission.  At any time when the Corporation is not subject to Section
13 or 15(d) of the Exchange Act,

                                                         - 51 -


<PAGE>



upon the request of a Holder or beneficial owner of a Security,  the Corporation
shall  continue to file with the  Commission and provide the Trustee and Holders
with the annual reports and the  information,  documents and other reports which
are specified in Sections 13 and 15(d) of the Exchange Act. The Corporation also
shall comply with the other  provisions of Trust  Indenture Act Section  314(a),
provided,  however,  that the  Corporation  shall be required,  pursuant to this
Section  7.4,  to  provide  any  document,  report or other  information  to the
Commission  only if this  Indenture  shall have been  qualified  under the Trust
Indenture Act.


                                  ARTICLE VIII

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

         SECTION 8.1.  Corporation May Consolidate, Etc., Only on Certain Terms.

         The  Corporation  shall not  consolidate  with or merge  into any other
Person or convey,  transfer or lease its properties and assets  substantially as
an entirety to any Person,  and no Person shall  consolidate  with or merge into
the  Corporation  or  convey,  transfer  or  lease  its  properties  and  assets
substantially as an entirety to the Corporation, unless:

                  (1) if the Corporation  shall  consolidate  with or merge into
         another  Person or convey,  transfer or lease its properties and assets
         substantially as an entirety to any Person,  the corporation  formed by
         such  consolidation  or into  which  the  Corporation  is merged or the
         Person that  acquires by conveyance  or transfer,  or that leases,  the
         properties and assets of the Corporation  substantially  as an entirety
         shall be a  corporation,  partnership  or trust  organized and existing
         under the laws of the United  States of America or any State thereof or
         the District of Columbia and shall  expressly  assume,  by an indenture
         supplemental  hereto,  executed and  delivered to the Trustee,  in form
         satisfactory  to the  Trustee,  the due  and  punctual  payment  of the
         principal of (and premium,  if any) and interest on all the  Securities
         and the  performance of every covenant of this Indenture on the part of
         the Corporation to be performed or observed;

                  (2) immediately  after giving effect to such  transaction,  no
         Event of Default,  and no event that, after notice or lapse of time, or
         both, would constitute an Event of Default,  shall have occurred and be
         continuing; and

                  (3) the  Corporation has delivered to the Trustee an Officers'
         Certificate  and  an  Opinion  of  Counsel,   each  stating  that  such
         consolidation,  merger,  conveyance,  transfer  or  lease  and any such
         supplemental  indenture  comply  with  this  Article  VIII and that all
         conditions  precedent  herein provided for relating to such transaction
         have been complied with;  and the Trustee,  subject to Section 6.1, may
         rely  upon  such  Officers'  Certificate  and  Opinion  of  Counsel  as
         conclusive  evidence that such  transaction  complies with this Section
         8.1.


                                                         - 52 -


<PAGE>



         SECTION 8.2.  Successor Corporation Substituted.

         Upon any  consolidation  or merger by the Corporation  with or into any
other Person,  or any  conveyance,  transfer or lease by the  Corporation of its
properties and assets  substantially  as an entirety to any Person in accordance
with Section 8.1, the successor corporation formed by such consolidation or into
which the Corporation is merged or to which such  conveyance,  transfer or lease
is made shall succeed to, and be  substituted  for, and may exercise every right
and power of, the  Corporation  under this  Indenture with the same effect as if
such successor Person had been named as the Corporation herein; and in the event
of any such conveyance,  transfer or lease, the Corporation  shall be discharged
from all obligations and covenants under this Indenture and the Securities.

         Such successor Person may cause to be executed, and may issue either in
its own name or in the  name of the  Corporation,  any or all of the  Securities
issuable   hereunder  that  theretofore  shall  not  have  been  signed  by  the
Corporation and delivered to the Trustee;  and, upon the order of such successor
Person instead of the Corporation  and subject to all the terms,  conditions and
limitations in this Indenture  prescribed,  the Trustee shall  authenticate  and
shall  deliver  any  Securities  that  previously  shall  have been  signed  and
delivered by the officers of the  Corporation to the Trustee for  authentication
pursuant  to such  provisions  and any  Securities  that such  successor  Person
thereafter shall cause to be executed and delivered to the Trustee on its behalf
for the purpose pursuant to such provisions.  All the Securities so issued shall
in all respects have the same legal rank and benefit under this Indenture as the
Securities theretofore or thereafter issued in accordance with the terms of this
Indenture.

         In case of any such  consolidation,  merger,  conveyance,  transfer  or
lease,  such  changes  in  phraseology  and form  may be made in the  Securities
thereafter to be issued as may be appropriate.


                                   ARTICLE IX

                             SUPPLEMENTAL INDENTURES

         SECTION 9.1.  Supplemental Indentures Without Consent of Holders.

         Without the consent of any Holders, the Corporation, when authorized by
a Board  Resolution,  and the  Trustee,  at any time and from time to time,  may
enter into one or more indentures  supplemental  hereto, in form satisfactory to
the Trustee, for any of the following purposes:

                  (1) to  evidence  the  succession  of  another  Person  to the
         Corporation,  and the assumption by any such successor of the covenants
         of the Corporation contained herein and in the Securities contained; or


                                                         - 53 -


<PAGE>



                  (2) to  convey,  transfer,  assign,  mortgage  or  pledge  any
         property  to or with the  Trustee  or to  surrender  any right or power
         herein conferred upon the Corporation; or

                  (3) to  add to the  covenants  of the  Corporation  for  the
         benefit of the Holders of Securities; or

                  (4) to add any additional Events of Default for the benefit of
         the Holders of Securities; or

                  (5) to  change  or  eliminate  any of the  provisions  of this
         Indenture,  provided  that any such  change  or  elimination  shall (a)
         become  effective  only when there is no Security  Outstanding  created
         prior to the execution of such supplemental  indenture that is entitled
         to the benefit of such  provision  or (b) not apply to any  Outstanding
         Securities; or

                  (6) to cure  any  ambiguity,  to  correct  or  supplement  any
         provision  herein that may be defective or inconsistent  with any other
         provision  herein,  or to make any other  provisions  with  respect  to
         matters or questions  arising under this Indenture,  provided that such
         action  pursuant  to this  clause  (6) shall not  adversely  affect the
         interest of the Holders of Securities in any material respect or for so
         long  Capital  Securities  issued  by the  Issuer  Trust  shall  remain
         outstanding, the holders of such Capital Securities; or

                  (7) to evidence and provide for the  acceptance of appointment
         hereunder by a successor  Trustee with respect to the Securities and to
         add to or change any of the  provisions  of this  Indenture as shall be
         necessary to provide for or facilitate the administration of the trusts
         hereunder by more than one  Trustee,  pursuant to the  requirements  of
         Section 6.11(b); or

                  (8) to comply with the requirements of the Commission in order
         to effect or maintain the  qualification  of this  Indenture  under the
         Trust Indenture Act.

         SECTION 9.2.  Supplemental Indentures with Consent of Holders.

         With  the  consent  of the  Holders  of not  less  than a  majority  in
aggregate principal amount of the Outstanding Securities, by Act of said Holders
delivered to the Corporation and the Trustee,  the Corporation,  when authorized
by a Board Resolution, and the Trustee may enter into an indenture or indentures
supplemental  hereto for the purpose of adding any  provisions to or changing in
any  manner  or  eliminating  any of the  provisions  of  this  Indenture  or of
modifying  in any  manner the rights of the  Holders  of  Securities  under this
Indenture; provided, however, that no such supplemental indenture shall, without
the consent of the Holder of each Outstanding Security affected thereby,

                  (1) change the Stated  Maturity  of the  principal  of, or any
         installment  of  interest  on, any  Security,  or reduce the  principal
         amount thereof or the rate of interest  thereon or any premium  payable
         upon the redemption thereof, or change the place of payment

                                                         - 54 -


<PAGE>



         where,  or the coin or  currency  in which,  any  Security  or interest
         thereon  is  payable,  or impair  the right to  institute  suit for the
         enforcement of any such payment on or after the Stated Maturity thereof
         (or, in the case of redemption, on or after the Redemption Date), or

                  (2) reduce the percentage in aggregate principal amount of the
         Outstanding  Securities,  the consent of whose  Holders is required for
         any such  supplemental  indenture,  or the consent of whose  Holders is
         required for any waiver (of compliance with certain  provisions of this
         Indenture  or  certain  defaults  hereunder  and  their   consequences)
         provided for in this Indenture, or

                  (3) modify any of the provisions of this Section 9.2,  Section
         5.13 or Section  10.5,  except to increase  any such  percentage  or to
         provide that  certain  other  provisions  of this  Indenture  cannot be
         modified or waived  without the consent of the Holder of each  Security
         affected thereby;

provided  further,   however,   that,  so  long  as  Capital  Securities  remain
outstanding,  (i) no such  amendment  shall be made that  adversely  affects the
holders of such Capital  Securities in any material respect,  and no termination
of this  Indenture  shall  occur,  and no  waiver  of any  Event of  Default  or
compliance  with any covenant under this Indenture  shall be effective,  without
the prior consent of the holders of at least a Majority in Liquidation Amount of
such Capital  Securities (as defined in the related Trust Agreement)  unless and
until the principal of (and premium,  if any, on) the Securities and all accrued
and (subject to Section  3.11) unpaid  interest  thereon have been paid in full,
and (ii) no amendment  shall be made to Section 5.8 of this Indenture that would
impair the rights of the  holders  of  Capital  Securities  issued by the Issuer
Trust  provided  therein  without the prior  consent of the holders of each such
Capital  Security  then  outstanding  unless  and  until the  principal  of (and
premium,  if any,  on) the  Securities  and all accrued and  (subject to Section
3.11) unpaid interest thereon have been paid in full.

         A  supplemental  indenture  that changes or eliminates  any covenant or
other  provision of this Indenture  that has expressly been included  solely for
the benefit of the Securities or any Capital Securities of the Issuer Trust that
holds the  Securities,  or that modifies the rights of the Holders of Securities
or holders of such Capital  Securities  with  respect to such  covenant or other
provision,  shall be deemed not to affect the rights under this Indenture of the
Holders of Securities or holders of Capital Securities.

         It shall not be necessary for any Act of Holders under this Section 9.2
to approve the particular form of any proposed  supplemental  indenture,  but it
shall be sufficient if such Act shall approve the substance thereof.


                                                         - 55 -


<PAGE>



         SECTION 9.3.  Execution of Supplemental Indentures.

         In  executing  or  accepting  the  additional  trusts  created  by  any
supplemental indenture permitted by this Article IX or the modifications thereby
of the trusts  created by this  Indenture,  the  Trustee  shall be  entitled  to
receive,  and (subject to Section 6.1) shall be fully protected in relying upon,
an Officers' Certificate and an Opinion of Counsel stating that the execution of
such  supplemental  indenture is authorized or permitted by this Indenture,  and
that all conditions  precedent  herein provided for relating to such action have
been complied  with.  The Trustee may, but shall not be obligated to, enter into
any such supplemental indenture that affects the Trustee's own rights, duties or
immunities under this Indenture or otherwise.

         SECTION 9.4.  Effect of Supplemental Indentures.

         Upon the execution of any supplemental indenture under this Article IX,
this Indenture shall be modified in accordance therewith,  and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities  theretofore or thereafter  authenticated and delivered  hereunder
shall be bound thereby.

         SECTION 9.5.  Conformity with Trust Indenture Act.

         Every  supplemental  indenture  executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

         SECTION 9.6.  Reference in Securities to Supplemental Indentures.

         Securities  authenticated  and  delivered  after the  execution  of any
supplemental indenture pursuant to this Article IX may, and shall if required by
the  Corporation,  bear a notation in form approved by the Corporation as to any
matter provided for in such supplemental  indenture. If the Corporation shall so
determine,  new  Securities  so modified  as to  conform,  in the opinion of the
Corporation,  to any such supplemental indenture may be prepared and executed by
the Corporation and  authenticated  and delivered by the Trustee in exchange for
Outstanding Securities.


                                    ARTICLE X

                                    COVENANTS

         SECTION 10.1.  Payment of Principal, Premium and Interest.

         The Corporation  covenants and agrees for the benefit of the Securities
that it will duly and punctually pay the principal of (and premium,  if any) and
interest on the Securities in accordance  with the terms of such  Securities and
this Indenture.


                                                         - 56 -


<PAGE>



         SECTION 10.2.  Maintenance of Office or Agency.

         The  Corporation  will  maintain  in  each  Place  of  Payment  for the
Securities an office or agency where  Securities may be presented or surrendered
for payment, where Securities may be surrendered for registration of transfer or
exchange and where notices and demands to or upon the  Corporation in respect of
the  Securities  and this  Indenture may be served.  The  Corporation  initially
appoints the Trustee,  acting through its Corporate  Trust Office,  as its agent
for said  purposes.  The  Corporation  will give  prompt  written  notice to the
Trustee of any change in the  location of any such  office or agency.  If at any
time the Corporation  shall fail to maintain such office or agency or shall fail
to furnish the Trustee with the address thereof, such presentations, surrenders,
notices and demands may be made or served at the  Corporate  Trust Office of the
Trustee, and the Corporation hereby appoints the Trustee as its agent to receive
all such presentations, surrenders, notices and demands.

         The  Corporation may also from time to time designate one or more other
offices or agencies where the Securities may be presented or surrendered for any
or all of such  purposes,  and may from time to time rescind such  designations;
provided,  however,  that no such  designation or rescission shall in any manner
relieve the  Corporation  of its  obligation  to maintain an office or agency in
each Place of Payment for  Securities for such purposes.  The  Corporation  will
give prompt written notice to the Trustee of any such designation and any change
in the location of any such office or agency.

         SECTION 10.3.  Money for Security Payments to be Held in Trust.

         If the  Corporation  shall at any time act as its own Paying Agent with
respect to the Securities,  it will, on or before each due date of the principal
of (or premium, if any) or interest on any of the Securities, segregate and hold
in trust for the benefit of the Persons entitled thereto a sum sufficient to pay
the principal  (or premium,  if any) or interest so becoming due until such sums
shall be paid to such Persons or otherwise  disposed of as herein provided,  and
will promptly notify the Trustee of its failure so to act.

         Whenever the Corporation shall have one or more Paying Agents, it will,
prior to 10:00 a.m.,  New York City time,  on each due date of the  principal of
(or premium, if any) or interest on any Securities,  deposit with a Paying Agent
a sum sufficient to pay the amount so becoming due, such sum to be held in trust
for the benefit of the Persons entitled to such amount,  and (unless such Paying
Agent is the Trustee) the  Corporation  will promptly  notify the Trustee of its
failure so to act.

         The Corporation  will cause each Paying Agent other than the Trustee to
execute  and  deliver to the Trustee an  instrument  in which such Paying  Agent
shall agree with the Trustee,  subject to the  provisions  of this Section 10.3,
that such Paying Agent will:

                  (1) hold all sums held by it for the payment of the  principal
         of (and  premium,  if any) and interest on the  Securities in trust for
         the benefit of the Persons entitled thereto

                                                         - 57 -


<PAGE>



         until such sums shall be paid to such Persons or otherwise disposed of
         as herein provided;

                  (2) give the Trustee notice of any default by the  Corporation
         (or any  other  obligor  upon  such  Securities)  in the  making of any
         payment of principal (or premium, if any) or interest in respect of any
         Security;

                  (3) at any time during the  continuance  of any  default  with
         respect to the  Securities,  upon the written  request of the  Trustee,
         forthwith  pay to the  Trustee all sums so held in trust by such Paying
         Agent; and

                  (4) comply with the  provisions  of the Trust  Indenture Act
         applicable to it as a Paying Agent.

         The  Corporation  may at any time,  for the  purpose of  obtaining  the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by  Corporation  Order  direct any Paying  Agent to pay, to the Trustee all sums
held in trust by the  Corporation or such Paying Agent,  such sums to be held by
the Trustee  upon the same trusts as those upon which such sums were held by the
Corporation or such Paying Agent;  and, upon such payment by any Paying Agent to
the Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

         Any money  deposited with the Trustee or any Paying Agent, or then held
by the Corporation in trust for the payment of the principal of (or premium,  if
any) or interest on any Security  and  remaining  unclaimed  for two years after
such principal (or premium, if any) or interest has become due and payable shall
(unless  otherwise  required by  mandatory  provision of  applicable  escheat or
abandoned  or  unclaimed  property  law) be paid on  Corporation  Request to the
Corporation,  or (if  then  held by the  Corporation)  shall  (unless  otherwise
required by mandatory  provision of applicable escheat or abandoned or unclaimed
property  law) be  discharged  from such trust;  and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Corporation
for payment thereof,  and all liability of the Trustee or such Paying Agent with
respect to such trust money,  and all  liability of the  Corporation  as trustee
thereof,  shall thereupon  cease;  provided,  however,  that the Trustee or such
Paying  Agent,  before  being  required to make any such  repayment,  may at the
expense of the Corporation cause to be published once, in a newspaper  published
in the English  language,  customarily  published  on each  Business  Day and of
general  circulation in the Borough of Manhattan,  The City of New York,  notice
that such money remains  unclaimed  and that,  after a date  specified  therein,
which  shall  not be less than 30 days  from the date of such  publication,  any
unclaimed   balance  of  such  money  then  remaining  will  be  repaid  to  the
Corporation.


                                                         - 58 -


<PAGE>



         SECTION 10.4.  Statement as to Compliance.

         The Corporation shall deliver to the Trustee, within 120 days after the
end of each fiscal year of the  Corporation  ending  after the date  hereof,  an
Officers'  Certificate  covering the preceding calendar year, stating whether or
not to the best knowledge of the signers  thereof the  Corporation is in default
in the  performance,  observance or fulfillment of or compliance with any of the
terms,  provisions,  covenants  and  conditions  of this  Indenture,  and if the
Corporation shall be in default, specifying all such defaults and the nature and
status thereof of which they may have knowledge. For the purpose of this Section
10.4,  compliance  shall be  determined  without  regard to any grace  period or
requirement of notice provided pursuant to the terms of this Indenture.

         SECTION 10.5.  Waiver of Certain Covenants.

         Subject to the rights of holders  of Capital  Securities  specified  in
Section  9.2, if any, the  Corporation  may omit in any  particular  instance to
comply with any covenant or  condition  provided  pursuant to Section  9.1(3) or
9.1(4)  with  respect  to the  Securities,  if before or after the time for such
compliance the Holders of at least a majority in aggregate  principal  amount of
the  Outstanding  Securities  shall,  by Act of such Holders,  either waive such
compliance in such instance or generally waive  compliance with such covenant or
condition,  but no such  waiver  shall  extend to or  affect  such  covenant  or
condition except to the extent so expressly waived, and, until such waiver shall
become  effective,  the  obligations  of the  Corporation in respect of any such
covenant or condition shall remain in full force and effect.

         SECTION 10.6.  Additional Sums.

          So long as no Event of Default  has  occurred  and is  continuing  and
except as  otherwise  specified  or as  contemplated  by Section 2.1, if (i) the
Issuer Trust is the Holder of all of the Outstanding Securities,  and (ii) a Tax
Event has  occurred  and is  continuing  in respect of such  Issuer  Trust,  the
Corporation shall pay to such Issuer Trust (or its permitted successor under the
related  Trust  Agreement)  for so long as such Issuer  Trust (or its  permitted
successor) is the registered holder of the Outstanding Securities, together with
any payment of principal of (or premium, if any) or interest on such Securities,
such  additional  sums  as  may  be  necessary  in  order  that  the  amount  of
Distributions  then  payable by such  Issuer  Trust in  respect  of the  related
Capital  Securities and Common  Securities in accordance  with the terms thereof
shall not be reduced as a result of any  Additional  Taxes arising from such Tax
Event (the  "Additional  Sums").  Whenever in this  Indenture or the  Securities
there is a reference  in any context to the payment of principal of (or premium,
if any) or interest on the  Securities,  such mention shall be deemed to include
mention of the payments of the Additional Sums provided for in this paragraph to
the extent that, in such context,  Additional Sums are, were or would be payable
in respect thereof pursuant to the provisions of this paragraph, and any express
mention of the  payment of  Additional  Sums (if  applicable)  in any  provision
hereof shall not be construed as excluding  Additional Sums in those  provisions
hereof  where such  express  mention is not made;  provided,  however,  that the
deferral of the payment of interest pursuant to Section 3.11 or the

                                                         - 59 -


<PAGE>



terms of the Securities  shall not defer the payment of any Additional Sums that
may be due and payable.

         SECTION 10.7.  Additional Covenants.

         The  Corporation  covenants  and agrees with each Holder of  Securities
that it shall not, and it shall not permit any Subsidiary of the Corporation to,
(x)  declare  or pay any  dividends  or  distributions  on, or redeem  purchase,
acquire  or make a  liquidation  payment  with  respect  to,  any  shares of the
Corporation's capital stock, or (y) make any payment of principal of or interest
or premium, if any, on or repay, repurchase or redeem any debt securities of the
Corporation  that rank pari passu in all respects  with or junior in interest to
the  Securities or make any guarantee  payments with respect to any guarantee by
the  Corporation of the debt  securities of any Subsidiary of the Corporation if
such  guarantee  ranks pari passu with or junior in interest  to the  Securities
(other than (a) dividends or  distributions  in common stock of the Corporation,
(b) any  declaration of a dividend in connection  with the  implementation  of a
stockholders'  rights plan,  or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee Agreement and (d) purchases of common stock related
to the issuance of common stock or rights under any of the  Corporation's or any
Subsidiary of the Corporation's  benefit plans for their directors,  officers or
employees  if at such time (i) there shall have  occurred any event of which the
Corporation has actual knowledge that (A) with the giving of notice or the lapse
of time,  or both,  would  constitute  an Event of Default and (B) in respect of
which the Corporation  shall not have taken  reasonable  steps to cure, (ii) the
Corporation  shall be in default with respect to its payment of any  obligations
under the Guarantee  Agreement relating to the Capital Securities issued by such
Issuer Trust, or (iii) the Corporation  shall have given notice of its selection
of an Extension  Period with respect to the  Securities  as provided  herein and
shall not have rescinded such notice, or such Extension Period, or any extension
thereof, shall be continuing.

         The Corporation also covenants with each Holder of Securities issued to
the  Issuer  Trust  (i) to hold,  directly  or  indirectly,  100% of the  Common
Securities  of such Issuer Trust,  provided that any permitted  successor of the
Corporation hereunder may succeed to the Corporation's  ownership of such Common
Securities,  (ii)  as  holder  of such  Common  Securities,  not to  voluntarily
terminate,  wind-up or liquidate such Issuer Trust, other than (a) in connection
with a  distribution  of the  Securities  to the holders of the related  Capital
Securities  in  liquidation  of such Issuer  Trust,  or (b) in  connection  with
certain mergers,  consolidations or amalgamations permitted by the related Trust
Agreement,  and (iii) to use its reasonable  efforts,  consistent with the terms
and provisions of such Trust  Agreement,  to cause such Issuer Trust to continue
to be classified  as a grantor trust and not to be taxable as a corporation  for
United States federal income tax purposes.



                                                         - 60 -


<PAGE>



                                   ARTICLE XI

                            REDEMPTION OF SECURITIES

         SECTION 11.1.  Applicability of This Article.

         Redemption  of  Securities  as  permitted  or  required  by any form of
Security issued pursuant to this Indenture shall be made in accordance with such
form of Security and this Article XI; provided,  however,  that if any provision
of any such form of Security  shall  conflict with any provision of this Article
XI, the provision of such form of Security shall govern.  Each Security shall be
subject to partial redemption only in integral multiples of $100,000.

         SECTION 11.2.  Election to Redeem; Notice to Trustee.

         The  election  of the  Corporation  to redeem any  Securities  shall be
evidenced by or pursuant to a Board Resolution. In case of any redemption at the
election of the  Corporation,  the Corporation  shall, not less than 30 nor more
than 60 days prior to the  Redemption  Date  (unless a shorter  notice  shall be
satisfactory to the Trustee),  notify the Trustee and the Property Trustee under
the  related  Trust  Agreement,  of such  date and of the  principal  amount  of
Securities to be redeemed and provide the additional  information required to be
included in the notice or notices  contemplated  by Section 11.4;  provided that
for so long as the Securities are held by the Issuer Trust, such notice shall be
given  not less  than 30 nor more  than 75 days  prior to such  Redemption  Date
(unless a shorter notice shall be satisfactory to the Property Trustee under the
related Trust  Agreement).  In the case of any redemption of Securities prior to
the expiration of any  restriction on such  redemption  provided in the terms of
such  Securities,  the  Corporation  shall furnish the Trustee with an Officers'
Certificate  and  an  Opinion  of  Counsel   evidencing   compliance  with  such
restriction.

         SECTION 11.3.  Selection of Securities to be Redeemed.

         If less than all the  Securities  are to be  redeemed,  the  particular
Securities  to be redeemed  shall be selected not more than 60 days prior to the
Redemption Date by the Trustee,  from the Outstanding  Securities not previously
called  for  redemption,  by such  method  as the  Trustee  shall  deem fair and
appropriate  and which may provide for the selection for redemption of a portion
of the principal amount of any Security, provided that the unredeemed portion of
the  principal  amount of any Security  shall be in an  authorized  denomination
(which  shall not be less than the  minimum  authorized  denomination)  for such
Security.

         The Trustee shall  promptly  notify the  Corporation  in writing of the
Securities  selected for partial  redemption and the principal amount thereof to
be redeemed.  For all purposes of this Indenture,  unless the context  otherwise
requires,  all provisions relating to the redemption of Securities shall relate,
in the case of any  Security  redeemed  or to be redeemed  only in part,  to the
portion  of the  principal  amount  of such  Security  that has been or is to be
redeemed.


                                                         - 61 -


<PAGE>



         SECTION 11.4.  Notice of Redemption.

         Notice  of  redemption  shall  be given by  first-class  mail,  postage
prepaid,  mailed not less than 30 nor more than 60 days prior to the  Redemption
Date, to each Holder of Securities to be redeemed, at the address of such Holder
as it appears in the  Securities  Register,  provided  that;  for so long as the
Securities  are held by the Issuer  Trust,  such notice  shall be given not less
than 30 nor more than 75 days prior to such  Redemption  Date  (unless a shorter
notice shall be  satisfactory  to the Property  Trustee  under the related Trust
Agreement).

         With respect to  Securities  to be redeemed,  each notice of redemption
shall state:

                  (a) the Redemption Date;

                  (b) the Redemption Price or, if the Redemption Price cannot be
         calculated  prior to the time the  notice is  required  to be sent,  an
         estimate of the  Redemption  Price together with a statement that it is
         an estimate and that the actual  Redemption Price will be calculated on
         the third  Business Day prior to the  Redemption  Date (and, if such an
         estimate of the Redemption Price is given, a subsequent notice shall be
         given as set  forth  above on the date that  such  Redemption  Price is
         calculated setting forth the actual Redemption Price);

                  (c)  if  less  than  all  Outstanding  Securities  are  to  be
         redeemed,  the identification  (and, in the case of partial redemption,
         the respective  principal  amounts) of the particular  Securities to be
         redeemed;

                  (d) if the  Securities are  convertible,  (A) that a Holder of
         Securities who desires to convert such Securities called for redemption
         must satisfy the requirements for conversion  contained in Article XIII
         below and (B) the Conversion Price;

                  (e) that on the Redemption  Date,  the  Redemption  Price will
         become due and payable upon each such Security or portion thereof,  and
         that interest thereon,  if any, shall cease to accrue on and after said
         date;and

                  (f) the  place  or  places  where  such  Securities  are to be
         surrendered for payment of the Redemption Price.

         Notice of  redemption  of  Securities to be redeemed at the election of
the  Corporation  shall be given by the  Corporation  or,  at the  Corporation's
request,  by the Trustee in the name and at the expense of the  Corporation  and
shall be irrevocable. The notice if mailed in the manner provided above shall be
conclusively  presumed  to have  been  duly  given,  whether  or not the  Holder
receives such notice.  In any case, a failure to give such notice by mail or any
defect in the notice to the Holder of any Security  designated for redemption as
a whole or in part shall not  affect the  validity  of the  proceedings  for the
redemption of any other Security.


                                                         - 62 -


<PAGE>



         SECTION 11.5.  Deposit of Redemption Price.

         Prior to 10:00  a.m.,  New  York  City  time,  on the  Redemption  Date
specified in the notice of  redemption  given as provided in Section  11.4,  the
Corporation will deposit with the Trustee or with one or more Paying Agents (or,
if the  Corporation  is acting as its own Paying  Agent,  the  Corporation  will
segregate  and hold in trust as  provided  in  Section  10.3) an amount of money
sufficient to pay the Redemption  Price of, and any accrued interest on, all the
Securities (or portions thereof) that are to be redeemed on that date.

         SECTION 11.6.  Payment of Securities Called for Redemption.

         If any notice of redemption has been given as provided in Section 11.4,
the  Securities or portion of  Securities  with respect to which such notice has
been given  shall  become due and payable on the date and at the place or places
stated in such notice at the applicable  Redemption Price, together with accrued
interest  to  the  Redemption  Date.  On  presentation  and  surrender  of  such
Securities at a Place of Payment in said notice  specified,  the said Securities
or the specified  portions thereof shall be paid and redeemed by the Corporation
at the  applicable  Redemption  Price,  together  with  accrued  interest to the
Redemption Date; provided,  however,  that installments of interest whose Stated
Maturity is on or prior to the Redemption Date will be payable to the Holders of
such Securities,  or one or more Predecessor  Securities,  registered as such at
the close of business on the relevant  record dates according to their terms and
the provisions of Section 3.8.

         Upon   presentation  of  any  Security   redeemed  in  part  only,  the
Corporation shall execute and the Trustee shall  authenticate and deliver to the
Holder thereof, at the expense of the Corporation, a new Security or Securities,
of  authorized  denominations,  in  aggregate  principal  amount  equal  to  the
unredeemed  portion of the  Security so presented  and having the same  Original
Issue Date, Stated Maturity and terms.

         If any  Security  called  for  redemption  shall  not be so  paid  upon
surrender  thereof for  redemption,  the principal of (and premium,  if any, on)
such Security  shall,  until paid, bear interest from the Redemption Date at the
rate prescribed therefor in such Security.

     SECTION 11.7.  Right of Redemption  of  Securities  Initially  Issued to an
Issuer Trust.

         The  Corporation,  at its option,  may redeem such Securities (i) on or
after  December 31, 2004, in whole at any time or in part from time to time at a
Redemption  Price specified in such Security,  together with accrued interest to
but excluding  the  Redemption  Date,  (ii) upon the  occurrence  and during the
continuation  of a Tax  Event in whole  (but not in part) at any time  within 90
days following the occurrence and during the continuation of such Tax Event at a
Redemption  Price specified in such Security,  together with accrued interest to
but excluding the Redemption  Date,  (iii) upon a Change of Control of Employers
Reinsurance Corporation,  in whole at any time or in part from time to time at a
Redemption  Price  equal  to 100% of the  principal  amount  of the  Securities,
together, in the case of any such redemption, with accrued

                                                         - 63 -


<PAGE>



interest to but excluding the Redemption Date, (iv) in connection with Employers
Reinsurance   Corporation's  proposed  transfer  or  disposition  of  Securities
pursuant  to Section  5.4(c) of the Trust  Agreement  or  Section  3.5(b) of the
Indenture,  in whole at any time or in part  from  time to time at a  Redemption
Price equal to 100% of the principal amount of the Securities,  together, in the
case  of any  such  redemption,  with  accrued  interest  to but  excluding  the
Redemption  Date and (v) on or after March 31, 1998,  in the event that the sale
of Industrial  Risk Insurers to Employers  Reinsurance  Corporation has not been
completed,  in whole at any time or in part  from  time to time at a  Redemption
Price equal to 100% of the principal amount of the Securities,  together, in the
case  of any  such  redemption,  with  accrued  interest  to but  excluding  the
Redemption Date.

         If less  than all the  Securities  are to be  redeemed,  the  aggregate
principal amount of such Securities remaining Outstanding after giving effect to
such  redemption  shall be  sufficient  to satisfy any  provisions  of the Trust
Agreement  related to the Issuer  Trust to which such  Securities  were  issued,
including any requirement in such Trust Agreement as to the minimum  Liquidation
Amount (as defined in such Trust  Agreement) of Capital  Securities  that may be
held by a holder of Capital Securities thereunder.

         SECTION 11.8.  Mandatory Redemption Provisions.

         (i) In the event of a Change of Control of HSB Group,  Inc. within five
years  after the  Original  Issuance  Date,  if the per share  price paid in the
acquisition  comprising  the  Change of  Control  is below  the per share  price
specified  below  for the year  within  which  the  Change  of  Control  occurs,
Employers  Reinsurance  Corporation,  at its option  (which  right  shall not be
transferable),  may require the Corporation to redeem all Outstanding Securities
in  whole  (but not in part)  at any  time at a  Redemption  Price  equal to the
Redemption Value for each Security as specified in the following table:



Redemption                 Minimum Per Share Price              Redemption Value
- ----------                 -----------------------              ----------------

Year 1                              $ 92.65                            109.00%

Year 2                                90.95                            107.00%

Year 3                                89.25                            105.00%

Year 4                                87.55                            103.00%

Year 5                                85.85                            101.00%



                                                         - 64 -


<PAGE>



         The Minimum Per Share Price stated above shall be subject to adjustment
in accordance with the provisions of Article XIII.

         (ii) In  addition,  (A) if, on or prior to January 8, 1998,  after good
faith negotiation and revisions (if any) to the documentation in accordance with
the provisions of the Term Sheet attached to the Purchase  Agreement,  Employers
Reinsurance  Corporation  determines  that the  Securities do not conform to the
fundamental  economic  terms set forth in the Term Sheet or  contain  provisions
that impose material legal or tax consequences or risks on Employers Reinsurance
Corporation  that  could  not  have  been  reasonably  anticipated  prior to the
purchase  of  the  Securities  or  Employers  Reinsurance  Corporation  has  not
receieved  the  opinions of counsel  referred to in Section  7(b) and (c) of the
Purchase  Agreement,  or (B) on or after March 31,  1998,  in the event that the
sale of Industrial  Risk Insurers to Employers  Reinsurance  Corporation has not
been completed,  then, in the case of either (A) or (B),  Employers  Reinsurance
Corporation, at its option (which right shall not be transferable),  may require
the Corporation to redeem within sixty (60) days after notice to the Corporation
of such desired redemption all Outstanding Securities in whole (but not in part)
at any time at a Redemption  Price equal to 100% of the principal  amount of the
Securities,  together, in the case of any such redemption, with accrued interest
to but excluding the Redemption Date.


                                   ARTICLE XII

                      RANKING; SUBORDINATION OF SECURITIES

         SECTION 12.1.  Ranking; Securities Subordinate to Senior Indebtedness.

         The Corporation covenants and agrees, and each Holder of a Security, by
its acceptance thereof,  likewise covenants and agrees,  that, to the extent and
in the manner  hereinafter  set forth in this  Article  XII,  the payment of the
principal  of  (and  premium,  if  any)  and  interest  on  each  and all of the
Securities are hereby expressly made subordinate and subject in right of payment
to the prior  payment in full of all  Senior  Indebtedness.  The  payment of the
principal  of  (and  premium,  if  any)  and  interest  on  each  and all of the
Securities  shall rank pari passu with HSB Group,  Inc.'s  Global  Floating Rate
Junior Subordinated Debentures, Series B.

     SECTION 12.2. No Payment When Senior Indebtedness in Default;  Payment Over
of Proceeds Upon Dissolution, Etc.

         If the Corporation shall default in the payment of any principal of (or
premium,  if any) or interest on any Senior  Indebtedness  when the same becomes
due and  payable,  whether at maturity or at a date fixed for  prepayment  or by
declaration  of  acceleration  or otherwise,  then,  upon written notice of such
default to the Corporation by the holders of Senior  Indebtedness or any trustee
therefor, unless and until such default shall have been cured or waived or shall
have  ceased to exist,  no direct or  indirect  payment  (in cash,  property  or
securities,  by  set-off  or  otherwise)  shall be made or  agreed to be made on
account of the principal of (or premium, if

                                                         - 65 -


<PAGE>



any) or  interest  on any of the  Securities,  or in respect of any  redemption,
repayment, retirement, purchase or other acquisition of any of the Securities.

         In  the  event  of  (a)  any  insolvency,   bankruptcy,   receivership,
liquidation,   reorganization,   readjustment,   composition  or  other  similar
proceedings relating to the Corporation,  its creditors or its property, (b) any
proceeding  for  the  liquidation,  dissolution  or  other  winding  up  of  the
Corporation,  voluntary or involuntary,  whether or not involving  insolvency or
bankruptcy proceedings, (c) any assignment by the Corporation for the benefit of
creditors or (d) any other  marshaling  of the assets of the  Corporation  (each
such event, if any, herein sometimes referred to as a "Proceeding"),  all Senior
Indebtedness  (including any interest thereon accruing after the commencement of
any  such  proceedings)  shall  first  be paid in full  before  any  payment  or
distribution,  whether in cash,  securities or other property,  shall be made to
any  Holder  of any  of the  Securities  on  account  thereof.  Any  payment  or
distribution,  whether  in  cash,  securities  or  other  property  (other  than
securities of the Corporation or any other corporation provided for by a plan of
reorganization or readjustment the payment of which is subordinate,  at least to
the  extent  provided  in these  subordination  provisions  with  respect to the
indebtedness  evidenced  by  the  Securities,  to  the  payment  of  all  Senior
Indebtedness  at the time  outstanding  and to any securities  issued in respect
thereof  under any such plan of  reorganization  or  readjustment),  that  would
otherwise (but for these subordination  provisions) be payable or deliverable in
respect of the Securities shall be paid or delivered  directly to the holders of
Senior  Indebtedness  in accordance with the priorities then existing among such
holders until all Senior  Indebtedness  (including any interest thereon accruing
after the commencement of any Proceeding) shall have been paid in full.

         In the event of any Proceeding, after payment in full of all sums owing
with respect to Senior  Indebtedness,  the Holders of the  Securities,  together
with the holders of any obligations of the Corporation  ranking on a parity with
the  Securities,  shall be entitled to be paid from the remaining  assets of the
Corporation the amounts at the time due and owing on account of unpaid principal
of (and  premium,  if  any)  and  interest  on the  Securities  and  such  other
obligations before any payment or other distribution,  whether in cash, property
or otherwise,  shall be made on account of any capital stock or any  obligations
of the Corporation ranking junior to the Securities and such other obligations.

         If,  notwithstanding the foregoing,  any payment or distribution of any
character or any security,  whether in cash, securities or other property (other
than  securities of the Corporation or any other  corporation  provided for by a
plan of reorganization  or readjustment the payment of which is subordinate,  at
least to the extent provided in these  subordination  provisions with respect to
the  indebtedness  evidenced  by the  Securities,  to the  payment of all Senior
Indebtedness  at the time  outstanding  and to any securities  issued in respect
thereof  under  any  such  plan of  reorganization  or  readjustment),  shall be
received  by the  Trustee  or any  Holder in  contravention  of any of the terms
hereof and  before  all Senior  Indebtedness  (including  any  interest  thereon
accruing after the commencement of any Proceeding) shall have been paid in full,
such  payment or  distribution  or  security  shall be received in trust for the
benefit of, and shall be paid over or delivered and  transferred to, the holders
of the Senior Indebtedness at the time outstanding in

                                                         - 66 -


<PAGE>



accordance  with the priorities then existing among such holders for application
to the  payment  of all  Senior  Indebtedness  remaining  unpaid,  to the extent
necessary to pay all such Senior  Indebtedness  (including any interest  thereon
accruing after the  commencement  of any  Proceeding) in full. If the Trustee or
any  Holder  fails to  endorse  or  assign  any such  payment,  distribution  or
security, each holder of Senior Indebtedness is hereby irrevocably authorized to
endorse or assign the same.

         The  Trustee  and the Holders  shall take such  action  (including  the
delivery of this Indenture to an agent for the holders of Senior Indebtedness or
consent to the filing of a financing  statement with respect  hereto) as may, in
the opinion of counsel  designated  by the  holders of a majority  in  principal
amount of the Senior  Indebtedness  at the time  outstanding,  be  necessary  or
appropriate to assure the effectiveness of the  subordination  effected by these
provisions.

         The  provisions  of this  Section  12.2 shall not  impair  any  rights,
interests,  remedies or powers of any secured  creditor  of the  Corporation  in
respect of any security  interest the creation of which is not prohibited by the
provisions of this Indenture.

         The securing of any obligations of the Corporation,  otherwise  ranking
on a parity with the Securities or ranking junior to the  Securities,  shall not
be  deemed  to  prevent  such  obligations  from   constituting,   respectively,
obligations  ranking on a parity with the  Securities  or ranking  junior to the
Securities.

         SECTION 12.3.  Payment Permitted If No Default.

         Nothing contained in this Article XII or elsewhere in this Indenture or
in any of the Securities shall prevent (a) the Corporation,  at any time, except
during the  pendency  of the  conditions  described  in the first  paragraph  of
Section  12.2 or of any  Proceeding  referred  to in Section  12.2,  from making
payments at any time of  principal of (and  premium,  if any) or interest on the
Securities,  or (b) the application by the Trustee of any moneys  deposited with
it hereunder to the payment of or on account of the  principal of (and  premium,
if any) or interest on the  Securities  or the  retention of such payment by the
Holders,  if, at the time of such  application  by the Trustee,  it did not have
knowledge that such payment would have been prohibited by the provisions of this
Article XII.

         SECTION 12.4.  Subrogation to Rights of Holders of Senior Indebtedness.

         Subject to the  payment in full of all  amounts due or to become due on
all  Senior  Indebtedness,  or the  provision  for such  payment in cash or cash
equivalents  or  otherwise  in a manner  satisfactory  to the  holders of Senior
Indebtedness, the Holders of the Securities shall be subrogated to the extent of
the payments or  distributions  made to the holders of such Senior  Indebtedness
pursuant to the  provisions  of this  Article XII  (equally and ratably with the
holders of all  indebtedness  of the  Corporation  that by its express  terms is
subordinated to Senior Indebtedness of the Corporation to substantially the same
extent as the Securities are

                                                         - 67 -


<PAGE>



subordinated  to the  Senior  Indebtedness  and is  entitled  to like  rights of
subrogation by reason of any payments or  distributions  made to holders of such
Senior Indebtedness) to the rights of the holders of such Senior Indebtedness to
receive payments and distributions of cash,  property and securities  applicable
to the Senior  Indebtedness  until the  principal of (and  premium,  if any) and
interest  on the  Securities  shall  be  paid  in  full.  For  purposes  of such
subrogation,  no  payments  or  distributions  to  the  holders  of  the  Senior
Indebtedness  of any cash,  property or  securities  to which the Holders of the
Securities  or the Trustee would be entitled  except for the  provisions of this
Article XII, and no payments over pursuant to the provisions of this Article XII
to the  holders  of Senior  Indebtedness  by Holders  of the  Securities  or the
Trustee,  shall, as among the  Corporation,  its creditors other than holders of
Senior  Indebtedness,  and the  Holders  of the  Securities,  be  deemed to be a
payment or  distribution  by the  Corporation  to or on  account of such  Senior
Indebtedness.

         SECTION 12.5.  Provisions Solely to Define Relative Rights.

         The provisions of this Article XII are and are intended  solely for the
purpose of defining the relative  rights of the Holders of the Securities on the
one hand and the  holders  of Senior  Indebtedness  on the other  hand.  Nothing
contained  in  this  Article  XII  or  elsewhere  in  this  Indenture  or in the
Securities is intended to or shall (a) impair,  as between the  Corporation  and
the Holders of the  Securities,  the obligations of the  Corporation,  which are
absolute  and  unconditional,  to pay  to the  Holders  of  the  Securities  the
principal of (and  premium,  if any) and interest on the  Securities as and when
the same shall become due and payable in accordance with their terms; (b) affect
the relative rights against the Corporation of the Holders of the Securities and
creditors of the Corporation  other than their rights in relation to the holders
of Senior Indebtedness; or (c) prevent the Trustee or the Holder of any Security
(or to the extent expressly provided herein, the holder of any Capital Security)
from exercising all remedies otherwise  permitted by applicable law upon default
under this  Indenture,  including  filing and voting  claims in any  Proceeding,
subject to the rights,  if any,  under this Article XII of the holders of Senior
Indebtedness  to receive  cash,  property and  securities  otherwise  payable or
deliverable to the Trustee or such Holder.

         SECTION 12.6.  Trustee to Effectuate Subordination.

         Each Holder of a Security,  by its acceptance  thereof,  authorizes and
directs  the  Trustee  on such  Holder's  behalf to take  such  action as may be
necessary or appropriate to acknowledge or effectuate the subordination provided
in this Article XII and appoints the Trustee such Holder's  attorney-in-fact for
any and all such purposes.

         SECTION 12.7.  No Waiver of Subordination Provisions.

         No right of any present or future holder of any Senior  Indebtedness to
enforce  subordination  as  herein  provided  shall  at any  time  in any way be
prejudiced  or  impaired  by any  act or  failure  to  act  on the  part  of the
Corporation or by any act or failure to act, in good faith,  by any such holder,
or by any noncompliance by the Corporation with the terms, provisions and

                                                         - 68 -


<PAGE>



covenants of this Indenture,  regardless of any knowledge  thereof that any such
holder may have or be otherwise charged with.

         Without in any way limiting the generality of the immediately preceding
paragraph, the holders of Senior Indebtedness may, at any time and from to time,
without  the  consent  of or  notice  to  the  Trustee  or  the  Holders  of the
Securities,  without  incurring  responsibility  to  such  Holders  and  without
impairing or releasing the  subordination as provided in this Article XII or the
obligations hereunder of such Holders to the holders of Senior Indebtedness,  do
any one or more of the  following:  (i)  change  the  manner,  place or terms of
payment  or  extend  the  time  of  payment  of,  or  renew  or  alter,   Senior
Indebtedness, or otherwise amend or supplement in any manner Senior Indebtedness
or any  instrument  evidencing  the same or any  agreement  under  which  Senior
Indebtedness is outstanding; (ii) sell, exchange, release or otherwise deal with
any property pledged, mortgaged or otherwise securing Senior Indebtedness; (iii)
release  any  Person  liable  in  any  manner  for  the   collection  of  Senior
Indebtedness;  and (iv) exercise or refrain from  exercising  any rights against
the Corporation and any other Person.

         SECTION 12.8.  Notice to Trustee.

         The Corporation  shall give prompt written notice to the Trustee of any
fact known to the  Corporation  that would prohibit the making of any payment to
or by the Trustee in respect of the Securities.  Notwithstanding  the provisions
of this Article or any other provision of this Indenture,  the Trustee shall not
be charged with  knowledge of the existence of any facts that would prohibit the
making of any payment to or by the Trustee in respect of the Securities,  unless
and until the  Trustee  shall have  received  written  notice  thereof  from the
Corporation  or a holder of Senior  Indebtedness  or from any trustee,  agent or
representative therefor;  provided,  however, that if the Trustee shall not have
received the notice provided for in this Section 12.8 at least two Business Days
prior to the date upon which by the terms  hereof any monies may become  payable
for any purpose (including the payment of the principal of (and premium, if any,
on) or  interest  on any  Security),  then,  anything  herein  contained  to the
contrary  notwithstanding,  the Trustee  shall have full power and  authority to
receive  such  monies and to apply the same to the  purpose  for which they were
received  and shall not be  affected by any notice to the  contrary  that may be
received by it within two Business Days prior to such date.

         Subject to the provisions of Section 6.1, the Trustee shall be entitled
to rely on the  delivery  to it of a  written  notice  by a Person  representing
himself  or  herself  to be a holder of  Senior  Indebtedness  (or a trustee  or
attorney-in-fact  therefor)  to  establish  that such notice has been given by a
holder of Senior  Indebtedness (or a trustee or attorney-in-fact  therefor).  If
the Trustee  determines  in good faith that  further  evidence is required  with
respect  to the  right of any  Person  as a holder  of  Senior  Indebtedness  to
participate  in any payment or  distribution  pursuant to this  Article XII, the
Trustee  may  request  such  Person  to  furnish   evidence  to  the  reasonable
satisfaction of the Trustee as to the amount of Senior Indebtedness held by such
Person,  the extent to which such  Person is  entitled  to  participate  in such
payment or  distribution  and any other  facts  pertinent  to the rights of such
Person under this Article XII, and if such evidence is

                                                         - 69 -


<PAGE>



not furnished, the Trustee may defer any payment to such Person pending judicial
determination as to the right of such Person to receive such payment.

     SECTION 12.9.  Reliance on Judicial  Order or  Certificate  of  Liquidating
Agent.

         Upon any payment or distribution of assets of the Corporation  referred
to in this Article XII, the Trustee,  subject to the  provisions of Section 6.1,
and the  Holders of the  Securities  shall be entitled to rely upon any order or
decree entered by any court of competent jurisdiction in which any Proceeding is
pending,  or a certificate of the trustee in bankruptcy,  receiver,  liquidating
trustee, custodian, assignee for the benefit of creditors, agent or other Person
making such payment or distribution,  delivered to the Trustee or to the Holders
of  Securities,  for  the  purpose  of  ascertaining  the  Persons  entitled  to
participate  in  such  payment  or  distribution,  the  holders  of  the  Senior
Indebtedness and other  indebtedness of the  Corporation,  the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all other
facts pertinent thereto or to this Article XII.

         SECTION 12.10.  Trustee Not Fiduciary for Holders of Senior 
Indebtedness.

         The Trustee, in its capacity as trustee under this Indenture, shall not
be deemed to owe any fiduciary  duty to the holders of Senior  Indebtedness  and
shall not be liable to any such holders if it shall in good faith mistakenly pay
over or  distribute to Holders of  Securities  or to the  Corporation  or to any
other  Person  cash,  property  or  securities  to which any  holders  of Senior
Indebtedness shall be entitled by virtue of this Article XII or otherwise.

     SECTION  12.11.  Rights  of  Trustee  as  Holder  of  Senior  Indebtedness;
Preservation of Trustee's Rights.

         The  Trustee in its  individual  capacity  shall be entitled to all the
rights set forth in this  Article  XII with  respect to any Senior  Indebtedness
that may at any time be held by it, to the same  extent  as any other  holder of
Senior Indebtedness,  and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

         SECTION 12.12.  Article Applicable to Paying Agents.

         If at any time any Paying Agent other than the Trustee  shall have been
appointed by the Corporation and be then acting hereunder, the term "Trustee" as
used in this Article shall in such case (unless the context otherwise  requires)
be construed as extending to and including  such Paying Agent within its meaning
as fully for all intents and purposes as if such Paying Agent were named in this
Article in addition to or in place of the Trustee.


                                                         - 70 -


<PAGE>



         SECTION 12.13.  Certain Conversions or Exchanges Deemed Payment.

         For the purpose of this Article only,  (a) the issuance and delivery of
junior  securities upon conversion or exchange of Securities shall not be deemed
to  constitute  a payment or  distribution  on account of the  principal  of (or
premium,  if any) or interest on the Securities or on account of the purchase or
other  acquisition of Securities,  and (b) the payment,  issuance or delivery of
cash  (including  any payments for  fractional  shares),  property or securities
(other than junior  securities)  upon conversion or exchange of a Security shall
be deemed to constitute  payment on account of the  principal of such  security.
For the purpose of this Section,  the term "junior  securities" means (i) shares
of any stock of any class of the  Company  and (ii)  securities  of the  Company
which are subordinated in right of payment to all Senior  Indebtedness which may
be  outstanding  at the time of  issuance  or  delivery  of such  securities  to
substantially  the same extent as, or to a greater  extent than,  the Securities
are so subordinated as provided in this Article.


                                  ARTICLE XIII

                            CONVERSION OF SECURITIES

         SECTION 13.1.  Conversion  Rights.  Subject to and upon compliance with
the provisions of this Article and subject to the receipt by the Corporation and
the Holder of the  appropriate  Regulatory  Approvals (as defined below) and the
termination  of the  applicable  waiting  periods  under  the  Hart-Scott-Rodino
Antitrust  Improvements Act of 1976, as amended, and the related regulations and
published interpretations,  the Securities are convertible, at the option of the
Holder,  into  fully  paid  and  nonassessable  shares  of  Common  Stock of the
Corporation at an initial  conversion rate of 11.7647 shares of Common Stock for
each $1,000 in aggregate  principal amount of Securities  (equal to a conversion
price of $85 per share of Common  Stock),  subject to adjustment as described in
this Article XIII (as adjusted the "Conversion  Price").  A Holder of Securities
may convert  any portion of the  principal  amount of the  Securities  into that
number of fully paid and nonassessable  shares of Common Stock (calculated as to
each  conversion  to the nearest  1/100th of a share)  obtained by dividing  the
principal  amount of the Securities to be converted by the Conversion  Price. In
case a Security or portion  thereof is called for  redemption,  such  conversion
right in respect of the  Security or portion so called shall expire at the close
of  business  on  the  Business  Day  immediately  preceding  the  corresponding
Redemption Date, unless the Corporation  defaults in making the payment due upon
redemption.

         "Regulatory  Approvals" shall mean all necessary  insurance  regulatory
and other filings and/or approvals and any licenses and permits, authorizations,
consents, orders or approvals of, or registrations, declarations or filings with
all regulatory  bodies as may be required to be obtained or made with respect to
either  party in order to permit the  parties  to  consummate  the  transactions
contemplated  hereby which are to be consummated on or prior to the Closing Date
(as defined in the Trust Agreement).


                                                         - 71 -


<PAGE>



         SECTION 13.2. Conversion  Procedures.  (a) In order to convert all or a
portion of the  Securities,  the Holder  thereof  shall  deliver to the Property
Trustee,  as conversion agent or to such other agent appointed for such purposes
(the  "Conversion  Agent")  an  irrevocable  Notice  of  Conversion  in the form
attached hereto as Exhibit C setting forth the principal amount of Securities to
be  converted,  together  with the name or names,  if other than the Holder,  in
which the shares of Common Stock should be issued upon conversion and, surrender
to the  Conversion  Agent the  Securities  to be  converted,  duly  endorsed  or
assigned  to the  Corporation  or in blank.  In  addition,  a holder of  Capital
Securities  may  exercise  its right under the Trust  Agreement  to convert such
Capital  Securities  into Common Stock by delivering to the Conversion  Agent an
irrevocable Notice of Conversion setting forth the information called for by the
preceding  sentence and  directing  the  Conversion  Agent (i) to exchange  such
Capital  Security  for a  portion  of the  Securities  held by the  Trust (at an
exchange rate of $1000 principal amount of Securities for each Capital Security)
and (ii) to immediately convert such Securities,  on behalf of such holder, into
Common  Stock of the  Corporation  pursuant  to this  Article  XIII and, if such
Capital Securities are in definitive form, surrendering such Capital Securities,
duly endorsed or assigned to the Corporation or in blank. So long as any Capital
Securities are  outstanding,  the Trust shall not convert any Securities  except
pursuant to a Notice of Conversion delivered to the Conversion Agent by a holder
of Capital Securities.

         If a Notice of Conversion  is delivered on or after the Regular  Record
Date and prior to the subsequent  Interest Payment Date, the Holder of record on
the Regular  Record Date will be  entitled to receive the  interest  paid on the
subsequent  Interest  Payment Date on the portion of  Securities to be converted
notwithstanding  the  conversion  thereof prior to such  Interest  Payment Date.
However,  if  aredemption  date falls  between a record date and the  subsequent
Interest Payment Date, the holder will be entitled to receive,  on such Interest
Payment Date,  the interest  accured to, but  excluding,  the  redemption  date.
Except  as  otherwise  provided  in the  first  and  second  sentences  of  this
paragraph, in the case of any Security which is converted, interest whose Stated
Maturity is on or after the date of  conversion  of such  Security  shall not be
payable,  and the  Corporation  shall not make nor be required to make any other
payment,  adjustment or allowance with respect to accrued but unpaid interest on
the Securities being  converted,  which shall be deemed to be paid in full. Each
conversion shall be deemed to have been effected  immediately prior to the close
of  business  on the day on which the Notice of  Conversion  was  received  (the
"Conversion  Date") by the Conversion  Agent from the Holder or from a holder of
the Capital Securities effecting a conversion thereof pursuant to its conversion
rights  under the Trust  Agreement,  as the case may be.  The  Person or Persons
entitled to receive the Common  Stock  issuable  upon such  conversion  shall be
treated for all purposes as the record holder or holders of such Common Stock as
of the  Conversion  Date and such  Person or  Persons  will cease to be a record
Holder  or record  Holders  of the  Securities  on that  date.  As  promptly  as
practicable on or after the Conversion  Date,  the  Corporation  shall issue and
deliver at the office of the Conversion Agent,  unless otherwise directed by the
Holder or holder in the Notice of Conversion,  a certificate or certificates for
the  number of full  shares  of  Common  Stock  issuable  upon such  conversion,
together with the cash payment,  if any, in lieu of any fraction of any share to
the Person or Persons  entitled to receive the same. The Conversion  Agent shall
deliver such certificate or certificates to such Person or Persons.

                                                         - 72 -


<PAGE>




                  (b) The  Corporation's  delivery upon  conversion of the fixed
number of shares of Common  Stock  into  which the  Securities  are  convertible
(together with the cash payment,  if any, in lieu of fractional shares) shall be
deemed to satisfy the  Corporation's  obligation to pay the principal  amount at
Maturity of the  portion of  Securities  so  converted  and any unpaid  interest
accrued on such Securities at the time of such conversion.

                  (c) No  fractional  shares of Common Stock will be issued as a
result of  conversion,  but in lieu thereof,  the  Corporation  shall pay to the
Conversion  Agent a cash  adjustment  in an amount equal to the same fraction of
the Current Market Price with respect to such fractional interest on the date on
which  the  Securities  or  Capital  Securities,  as the case may be,  were duly
surrendered to the Conversion Agent for conversion,  and the Conversion Agent in
turn will make such  payment,  if any,  to the Holder of the  Securities  or the
holder of the Capital Securities so converted.

                  (d) In the event of the  conversion  of any  Security  in part
only, a new Security or Securities for the  unconverted  portion thereof will be
issued in the name of the Holder thereof upon the  cancellation  of the Security
converted in part in accordance with Section 3.5.

                  (e) In effecting the conversion transactions described in this
Section,  the  Conversion  Agent is acting as agent of the  holders  of  Capital
Securities (in the exchange of Capital  Securities for  Securities) and as agent
of the  Holders of  Securities  (in the  conversion  of  Securities  into Common
Stock),  as the case may be. The  Conversion  Agent is hereby  authorized (i) to
exchange  Securities held by the Trust from time to time for Capital  Securities
in connection with the conversion of such Capital  Securities in accordance with
this  Article XIII and (ii) to convert all or a portion of the  Securities  into
Common Stock and  thereupon to deliver such shares of Common Stock in accordance
with the  provisions  of this  Article  XIII and to  deliver  to the Trust a new
Security or Securities for any resulting unconverted principal amount.

                  (f) All shares of Common Stock  delivered  upon any conversion
of   Restricted   Securities   shall  bear  a  Restrictive   Securities   Legend
substantially  in the  form  of the  legend  required  to be set  forth  on such
Securities and shall be subject to the restrictions on transfer provided in such
legend and in Section 3.5 hereof.  Neither the Trustee nor the Conversion  Agent
shall  have  any  responsibility  for  the  inclusion  or  content  of any  such
Restrictive Securities Legend on such Common Stock; provided,  however, that the
Trustee or the Conversion Agent shall have provided to the Corporation or to the
Corporation's  transfer  agent for such Common Stock,  prior to or  concurrently
with  a  request  to  the  Corporation  to  deliver  to  such  Conversion  Agent
certificates for such Common Stock, written notice that the Securities delivered
for conversion are Restricted Securities.

                  (g) The  Corporation  shall  at all  times  reserve  and  keep
available out of its authorized and unissued  Common Stock,  solely for issuance
upon the conversion of the Securities,  such number of shares of Common Stock as
shall from time to time be issuable upon the  conversion  of all the  Securities
then  outstanding.  Notwithstanding  the  foregoing,  the  Corporation  shall be
entitled  to  deliver  upon  conversion  of  Securities  shares of Common  Stock
reacquired and held

                                                         - 73 -


<PAGE>



in the treasury of the  Corporation  (in lieu of the issuance of authorized  and
unissued  shares of Common Stock) so long as any such  treasury  shares are free
and clear of all liens,  charges,  security interests or encumbrances.  Whenever
the Corporation  issues shares of Common Stock upon conversion of Securities and
the  Corporation  has in effect at such time a share purchase  rights  agreement
under which holders of Common Stock are issued rights  ("Rights")  entitling the
holders under certain circumstances to purchase an additional share or shares of
stock,  the  Corporation  will  issue,  together  with each such share of Common
Stock,  such number of Rights  (which number may be a fraction) as shall at that
time be issuable  with a share of Common Stock  pursuant to such share  purchase
rights agreement (currently, half of a Right). Any shares of Common Stock issued
upon conversion of the Securities shall be duly  authorized,  validly issued and
fully paid and  nonassessable.  The Conversion Agent shall deliver the shares of
Common Stock received upon conversion of the Securities to the converting Holder
free and clear of all  liens,  charges,  security  interests  and  encumbrances,
except  for United  States  withholding  taxes.  The  Corporation  shall use its
reasonable  best  efforts  to  obtain  and keep in force  such  governmental  or
regulatory  permits or other  authorizations as may be required by law, in order
to enable the  Corporation to lawfully issue Common Stock upon conversion of the
Securities  and to  lawfully  deliver  the  Common  Stock  to each  Holder  upon
conversion of the Securities.

                  (h) The  Corporation  will pay any and all  taxes  that may be
payable  in  respect  of the issue or  delivery  of  shares  of Common  Stock on
conversion of Securities. The Corporation shall not, however, be required to pay
any tax which may be payable in respect of any  transfer  involved  in the issue
and  delivery  of shares of Common  Stock in a name other than that in which the
Securities so converted were registered,  and no such issue or delivery shall be
made  unless  and  until  the  Person  requesting  such  issue  has  paid to the
Conversion  Agent  the  amount  of  any  such  tax,  or has  established  to the
satisfaction of the Conversion Agent that such tax has been paid.

                  (i) Nothing in this Article  XIII shall limit the  requirement
of the  Corporation to withhold taxes pursuant to the terms of the Securities or
as set  forth  in  this  Agreement  or  otherwise  require  the  Trustee  or the
Corporation to pay any amounts on account of such withholdings.

     SECTION 13.3.  Conversion Price Adjustments.  The conversion price shall be
subject to adjustment (without duplication) from time to time as follows:

                  (a) In case the Corporation shall, while any of the Securities
are outstanding,  (i) pay a dividend or make a distribution  with respect to its
Common Stock in shares of Common Stock, (ii) subdivide its outstanding shares of
Common  Stock,  (iii)  combine  its  outstanding  shares of Common  Stock into a
smaller  number of shares or (iv)  issue by  reclassification  of its  shares of
Common  Stock any shares of capital  stock of the  Corporation,  the  conversion
privilege and the Conversion  Price in effect  immediately  prior to such action
shall be adjusted so that the Holder of any  Securities  thereafter  surrendered
for  conversion  shall be  entitled  to receive  the number of shares of capital
stock of the Corporation  which he would have owned  immediately  following such
action had such Securities been converted immediately prior thereto. An ad-

                                                         - 74 -


<PAGE>



justment made pursuant to this subsection (a) shall become effective immediately
after the record date in the case of a dividend or other  distribution and shall
become effective  immediately after the effective date in case of a subdivision,
combination  or  reclassification  (or  immediately  after the record  date if a
record date shall have been  established for such event).  If, as a result of an
adjustment  made  pursuant to this  subsection  (a),  the Holder of any Security
thereafter surrendered for conversion shall become entitled to receive shares of
two or more classes or series of capital stock of the Corporation,  the Board of
Directors (whose  determination  shall be conclusive and shall be described in a
Board  Resolution  filed with the Trustee) shall determine the allocation of the
adjusted  Conversion  Price between or among shares of such classes or series of
capital  stock.  In the event  that such  dividend,  distribution,  subdivision,
combination or issuance is not so paid or made, the Conversion Price shall again
be  adjusted  to be the  Conversion  Price which would then be in effect if such
record date had not been fixed.

                  (b) In case the Corporation shall, while any of the Securities
are  Outstanding,  issue  rights or warrants to all holders of its Common  Stock
entitling  them (for a period  expiring  within 45 days  after the  record  date
mentioned  below) to subscribe for or purchase shares of Common Stock at a price
per share less than the Current  Market  Price per share of Common  Stock on the
record date mentioned  below,  the Conversion  Price for the Securities shall be
adjusted so that the same shall equal the price  determined by  multiplying  the
Conversion  Price in effect  immediately  prior to the date of  issuance of such
rights or warrants by a fraction of which the  numerator  shall be the number of
shares of Common  Stock  outstanding  on the date of  issuance of such rights or
warrants  plus the number of shares which the  aggregate  offering  price of the
total number of shares so offered for subscription or purchase would purchase at
such Current Market Price,  and of which the denominator  shall be the number of
shares of Common  Stock  outstanding  on the date of  issuance of such rights or
warrants  plus the  number of  additional  shares of Common  Stock  offered  for
subscription or purchase.  Such adjustment  shall become  effective  immediately
after the record date for the determination of stockholders  entitled to receive
such rights or  warrants.  To the extent  that no shares of Common  Stock are so
delivered after the expiration of such rights or warrants,  the Conversion Price
shall be adjusted to the Conversion  Price whixh would then be in effect if such
date fixed for the determination of stockholders entitled to receive such rights
or warrants had not been fixed. For the purposes of this subsection,  the number
of shares of Common Stock at any time outstanding  shall not include shares held
in the treasury of the Corporation.  The Corporation  shall not issue any rights
or  warrants  in respect of shares of Common  Stock held in the  treasury of the
Corporation.  In case any rights or warrants  referred to in this  subsection in
respect of which an  adjustment  shall have been made shall  expire  unexercised
within 45 days  after the same  shall  have  been  distributed  or issued by the
Corporation,  the  Conversion  Price  shall  be  readjusted  at the time of such
expiration  to the  Conversion  Price  that  would  have  been in  effect  if no
adjustment  had been made on account of the  distribution  or  issuance  of such
expired rights or warrants.

                  (c) Subject to the last sentence of this subparagraph, in case
the Corporation  shall,  by dividend or otherwise,  distribute to all holders of
its Common Stock evidences of its indebtedness, shares of any class or series of
capital stock, cash or assets(or rights or warrants

                                                         - 75 -


<PAGE>



to subscribe for or purchase any of its securities,  but excluding any rights or
warrants  referred to in  subparagraph  (b), any dividend or  distribution  paid
exclusively in cash and any dividend or distribution referred to in subparagraph
(a) of this Section  13.3),  the  Conversion  Price shall be reduced so that the
same shall equal the price  determined by multiplying  the  Conversion  Price in
effect  immediately prior to the effectiveness of the Conversion Price reduction
contemplated by this subparagraph (c) by a fraction of which the numerator shall
be the Current  Market Price per share of the Common Stock on the date fixed for
the payment of such  distribution  (the  "Reference  Date") less the fair market
value  (as   determined  in  good  faith  by  the  Board  of  Directors,   whose
determination  shall be conclusive and described in a resolution of the Board of
Directors),  on  the  Reference  Date,  of  the  portion  of  the  evidences  of
indebtedness, shares of capital stock, cash and assets so distributed or of such
subscription  rights or warrants applicable to one share of Common Stock and the
denominator  shall be such current  market price per share of the Common  Stock,
such reduction to become effective  immediately prior to the opening of business
on the day following the Reference Date;  provided,  however,  that in the event
the  numerator  shall be less than  one,  in lieu of the  foregoing  adjustment,
adequate  provision  shall be made so that each Holder of Securities  shall have
the right to receive upon conversion the amount of such distribution such Holder
would have received had such Holder converted each Security immediately prior to
the reference  date. In the event that such dividend or  distribution  is not so
paid or made, the Conversion  Price shall again be adjusted to be the Conversion
Price which would then be in effect if such  dividend  or  distribution  had not
occurred.  If the Board of  Directors  determines  the fair market  value of any
distribution for purposes of this subparagraph (c) by reference to the actual or
when issued trading market for any securities  comprising such distribution,  it
must in doing so consider the prices in such market over the same period used in
computing the current  market price per share of Common  Stock.  For purposes of
this  subparagraph  (c), any dividend or  distribution  that includes  shares of
Common Stock or rights or warrants to subscribe for or purchase shares of Common
Stock  shall be deemed  instead  to be (i) a  dividend  or  distribution  of the
evidences of  indebtedness,  shares of capital stock,  cash or assets other than
such shares of Common  Stock or such rights or warrants  (making any  Conversion
Price reduction required by this subparagraph (c)) immediately  followed by (ii)
a dividend  or  distribution  of such  shares of Common  Stock or such rights or
warrants (making any further conversion price reduction required by subparagraph
(a) or (b)),  except (A) the Reference Date of such dividend or  distribution as
defined in this subparagraph shall be substituted as (x) "the record date in the
case of a dividend  or other  distribution,"  and (y) "the  record  date for the
determination  of stockholders  entitled to receive such rights or warrants" and
(z) "the date fixed for such determination"  within the meaning of subparagraphs
(a) and (b) and (B) any shares of Common  Stock  included  in such  dividend  or
distribution  shall not be deemed  outstanding  for  purposes of  computing  any
adjustment of the conversion price in subparagraph (a).

                  (d) If the distribution date for the Rights of the Corporation
provided in the Shareholders Rights Plan, as presently  constituted or under any
similar plan occurs prior to the Conversion Date, and a Holder of the Securities
who converts such  Securities  after such  distribution  date is not entitled to
receive  the  Rights  that  would  otherwise  be  attached  (but for the date of
conversion) to the shares of Common Stock received upon such conversion, then an

                                                         - 76 -


<PAGE>



adjustment  shall be made to the  Conversion  Price  pursuant  to clause (ii) of
Section  13.4(a)  as  if  the  Rights  were  being  distributed  to  the  common
stockholders of the Corporation immediately prior to such conversion. If such an
adjustment is made and the Rights are later redeemed, invalidated or terminated,
then a corresponding reversing adjustment shall be made to the Conversion Price,
on an equitable basis, to take account of such event.

                  (e) The  Corporation  shall have the right to reduce from time
to time the Conversion  Price by any amount  selected by the Corporation for any
period of at least 30 days,  provided,  that Corporation  shall give at least 15
days'  notice of such  reduction to the Trustee and the  Property  Trustee.  The
Corporation may, at its option, make such reductions in the Conversion Price, in
addition to those set forth above in Section 13.3(a),  as the Board of Directors
deems  advisable  to avoid or diminish any income tax to holders of Common Stock
resulting  from any  dividend  or  distribution  of stock (or  rights to acquire
stock) or from any event treated as such for income tax purposes.  No adjustment
of the  Conversion  Price will be made upon the issuance of any shares of Common
Stock pursuant to any present or future plan providing for the  reinvestment  of
dividends  or  interest  payable  on  securities  of  the  Corporation  and  the
investment  of additional  optional  amounts in shares of Common Stock under any
such plan, or the issuance of any shares of Common Stock or options or rights to
purchase such shares pursuant to any present or future employee  benefit plan or
program of the  Corporation  or  pursuant  to any  option,  warrant,  right,  or
exercisable,  exchangeable or convertible  security which does not constitute an
issuance to all holders of Common Stock of rights or warrants  entitling holders
of such rights or warrants to  subscribe  for or purchase  Common  Stock at less
than  the  Current  Market  Price.  There  shall  also be no  adjustment  of the
Conversion  Price in case of the  issuance  of any Common  Stock (or  securities
convertible  into or  exchangeable  for Common  Stock),  except as  specifically
described above.

                  (f) If any action would require  adjustment of the  Conversion
Price  pursuant to more than one of the  provisions  described  above,  only one
adjustment  shall be made and such adjustment  shall be the amount of adjustment
that has the highest absolute value to the Holder of the Securities.

     SECTION  13.4.  Notice of  Adjustments  of Conversion  Price.  Whenever the
Conversion Price is adjusted as herein provided:

                  (a) the  Corporation  shall  compute the  adjusted  conversion
price and shall prepare a certificate  signed by the Chief Financial  Officer or
the Treasurer of the Corporation setting forth the adjusted conversion price and
showing in reasonable  detail the facts upon which such adjustment is based, and
such certificate shall forthwith be filed with the Trustee, the Conversion Agent
and the transfer agent for the Capital Securities and the Securities; and

                  (b) a notice  stating the  Conversion  Price has been adjusted
and setting forth the adjusted  Conversion Price shall as soon as practicable be
mailed by the  Corporation to all record  holders of Capital  Securities and the
Securities at their last  addresses as they appear upon the stock transfer books
of the Corporation and the Trust and the Securities Registrar.

                                                         - 77 -


<PAGE>




         SECTION 13.5.  Prior Notice of Certain Events.
                  In case:

                           (i) the  Corporation  shall  declare any dividend (or
         any other  distribution) on its Common Stock, other than (x) a dividend
         payable  in shares of Common  Stock or (y) a  dividend  payable in cash
         that would not require an adjustment pursuant to Section 13.3(c);

                           (ii) the Corporation  shall authorize the granting to
         all holders of Common Stock of rights or warrants to  subscribe  for or
         purchase  any  shares  of stock of any  class or series or of any other
         rights or warrants;

                           (iii) of any  reclassification of Common Stock (other
         than a subdivision or combination of the outstanding Common Stock, or a
         change in par value,  or from par value to no par value, or from no par
         value to par  value),  or of any  consolidation  or merger to which the
         Corporation  is a party and for which approval of  stockholders  of the
         Corporation  shall be  required,  or of the sale or  transfer of all or
         substantially all of the assets of the Corporation or of any compulsory
         share  exchange  whereby  the  Common  Stock is  converted  into  other
         securities, cash or other property; or

                         (iv)  of  the  voluntary  or  involuntary  dissolution,
         liquidation or winding up of the Corporation;

then the Corporation  shall (A) if any Capital  Securities are outstanding under
the Trust  Agreement,  cause to be filed with the transfer agent for the Capital
Securities, and shall cause to be mailed to the holders of record of the Capital
Securities, at their last addresses as they shall appear upon the stock transfer
books of the Trust or (B) shall  cause to be mailed to all Holders at their last
addresses as they shall appear in the Security Register,  at least 15 days prior
to the  applicable  record or effective  date  hereinafter  specified,  a notice
stating  (x) the date on which a record (if any) is to be taken for the  purpose
of such dividend, distribution,  rights or warrants or, if a record is not to be
taken, the date as of which the holders of Common Stock of record to be entitled
to such dividend,  distribution,  rights or warrants are to be determined or (y)
the date on which such reclassification,  consolidation, merger, sale, transfer,
share  exchange,  dissolution,  liquidation  or winding up is expected to become
effective,  and the date as of which it is expected that holders of Common Stock
of record  shall be  entitled  to  exchange  their  shares  of Common  Stock for
securities,  cash or other  property  deliverable  upon  such  reclassification,
consolidation,  merger, sale, transfer, share exchange, dissolution, liquidation
or winding up (but no  failure to mail such  notice or any defect  therein or in
the mailing  thereof shall affect the validity of the corporate  action required
to be specified in such notice).


                                                         - 78 -


<PAGE>



         SECTION 13.6. Dividend or Interest Reinvestment Plans.  Notwithstanding
anything  to the  contrary  in this  Article  13, the  issuance of any shares of
Common Stock pursuant to any plan providing for the reinvestment of dividends or
interest  payable  on  securities  of the  Corporation  and  the  investment  of
additional  optional  amounts in shares of Common Stock under any such plan, and
the issuance of any shares of Common Stock or options or rights to purchase such
shares  pursuant to any employee  benefit plan or program of the  Corporation or
pursuant  to  any  option,  warrant,  right  or  exercisable,   exchangeable  or
convertible  security  outstanding  as of the date  the  Securities  were  first
issued,  shall  not be deemed  to  constitute  an  issuance  of Common  Stock or
exercisable,  exchangeable or convertible securities by the Corporation to which
any of the adjustment provisions described above applies. There shall also be no
adjustment  of the  Conversion  Price in case of the  issuance  of any stock (or
securities convertible into or exchangeable for stock) of the Corporation except
as specifically described in this Article XIII.

         SECTION 13.7.  Certain Additional Rights.

         In case the  Corporation  shall,  by dividend or otherwise,  declare or
make  a  distribution  on  its  Common  Stock  referred  to in  Section  13.3(c)
(including,  without limitation,  dividends or distributions  referred to in the
last  sentence  of Section  13.3(c)),  the Holders of the  Securities,  upon the
conversion thereof subsequent to the close of business on the date fixed for the
determination of stockholders entitled to receive such distribution and prior to
the  effectiveness  of the  Conversion  Price  adjustment  in  respect  of  such
distribution,  shall also be entitled to receive for each share of Common  Stock
into which the  Securities  are  converted,  the portion of the shares of Common
Stock,  rights,  warrants,  evidences of indebtedness,  shares of capital stock,
cash  and  assets  so  distributed  applicable  to one  share of  Common  Stock;
provided,  however,  that, at the election of the  Corporation  (whose  election
shall be evidenced by a resolution  of the Board of  Directors)  with respect to
all Holders so converting,  the Corporation may, in lieu of distributing to such
Holder any portion of such  distribution not consisting of cash or securities of
the  Corporation,  pay such  Holder an amount in cash  equal to the fair  market
value  thereof (as  determined  in good faith by the Board of  Directors,  whose
determination  shall be conclusive and described in a resolution of the Board of
Directors).  If any  conversion  of  Securities  described  in  the  immediately
preceding  sentence  occurs  prior to the  payment  date for a  distribution  to
holders of Common Stock which the Holder of  Securities so converted is entitled
to  receive  in  accordance  with  the  immediately   preceding  sentence,   the
Corporation  may elect (such  election to be evidenced  by a  resolution  of the
Board of  Directors)  to  distribute to such Holder a due bill for the shares of
Common Stock,  rights,  warrants,  evidences of indebtedness,  shares of capital
stock, cash or assets to which such Holder is so entitled,  provided,  that such
due bill  (i)  meets  any  applicable  requirements  of the  principal  national
securities exchange or other market on which the Common Stock is then traded and
(ii)  requires  payment or  delivery  of such  shares of Common  Stock,  rights,
warrants, evidences of indebtedness,  shares of capital stock, cash or assets no
later  than the date of  payment  or  delivery  thereof  to holders of shares of
Common Stock receiving such distribution.


                                                         - 79 -


<PAGE>



         SECTION 13.8.  Restrictions on Common Stock Issuable Upon Conversion.

                  (a) Shares of Common Stock to be issued upon  conversion  of a
Security in respect of Restricted Capital Securities shall bear such restrictive
legends as the Corporation may provide in accordance with applicable law.

                  (b) If shares of Common Stock to be issued upon  conversion of
a Security in respect of Restricted Capital Securities are to be registered in a
name other than that of the Holder of such Capital Security,  then the Person in
whose name such shares of Common Stock are to be registered  must deliver to the
Conversion  Agent a certificate  satisfactory  to the  Corporation and signed by
such Person,  as to compliance with the  restrictions on transfer  applicable to
such Capital Security. Neither the Trustee nor any Conversion Agent or Registrar
shall be required to register in a name other than that of the Holder  shares of
Common  Stock  issued upon  conversion  of any such  Security in respect of such
Capital Securities not so accompanied by a properly completed certificate.

     SECTION 13.9.  Trustee Not Responsible for Determining  Conversion Price or
Adjustments.

         Neither the Trustee nor any Conversion Agent shall at any time be under
any duty or  responsibility  to any Holder of any Security or to any holder of a
Capital  Security  to  determine  whether  any facts exist which may require any
adjustment of the Conversion  Price,  or with respect to the nature or extent of
any such adjustment when made, or with respect to the method employed, or herein
or in any supplemental  indenture  provided to be employed,  in making the same.
Neither the Trustee nor any Conversion  Agent shall be accountable  with respect
to the  validity or value (or the kind of account) of any shares of Common Stock
or of any  securities or property,  which may at any time be issued or delivered
upon the conversion of any Security;  and neither the Trustee nor any Conversion
Agent makes any representation with respect thereto. Neither the Trustee nor any
Conversion Agent shall be responsible for any failure of the Corporation to make
any cash payment or to issue,  transfer or deliver any shares of Common Stock or
stock  certificates  or other  securities  or property upon the surrender of any
Security for the purpose of conversion, or, except as expressly herein provided,
to comply with any of the covenants of the  Corporation  contained in Article 10
or this Article 13.


                                   ARTICLE XIV

                                    EXPENSES

SECTION 14.1.  Payment of Expenses by the Corporation.

                  The  Corporation   hereby   irrevocably  and   unconditionally
guarantees to each person or entity to whom any Issuer Trust is now or hereafter
becomes indebted or liable (the "Expense  Beneficiaries") the full payment, when
and as due, of any and all Expense Obligations (as hereinafter  defined) to such
Expense Beneficiaries. As used herein, "Expense Obligations" means

                                                         - 80 -


<PAGE>



any costs,  expenses or liabilities of any Issuer Trust,  other than obligations
of an Issuer Trust to pay to holders of any Capital  Securities or other similar
interests  in such Issuer  Trust the amounts  due such  holders  pursuant to the
terms of the Capital Securities or such other similar interests, as the case may
be. This Article XIV is intended to be for the benefit of, and to be enforceable
by, all such Expense  Beneficiaries,  whether or not such Expense  Beneficiaries
have received notice hereof.

SECTION 14.2.  Term of Agreement.

                  This Article XIV shall  terminate  and be of no further  force
and effect with  respect to holders of  securities  of an Issuer  Trust upon the
later of (a) the date on which full payment has been made of all amounts payable
to  all  holders  of  all  the  Capital  Securities  (whether  upon  redemption,
liquidation,  exchange or  otherwise)  of such Issuer  Trust and (b) the date on
which there are no Expense Beneficiaries remaining; provided, however, that this
Article XIV shall continue to be effective or shall be  reinstated,  as the case
may be, with respect to such Issuer Trust,  if at any time any holder of Capital
Securities of such Issuer Trust or any Expense  Beneficiary must restore payment
of any sums paid under the Capital  Securities of such Issuer  Trust,  under any
Expense Obligation, under the guarantee agreement by the Corporation in favor of
holders of Capital Securities of such Issuer Trust or under this Article XIV for
any reason whatsoever. Subject to the terms of this Article XIV, the obligations
of  the  Corporation  under  this  Article  XIV  are  continuing,   irrevocable,
unconditional and absolute.

SECTION 14.3.  Waiver of Notice.

         The  Corporation  hereby waives notice of acceptance of the  agreements
contained in this Article XIV and of any Expense  Obligation to which it applies
or may apply, and the Corporation hereby waives presentment, demand for payment,
protest, notice of nonpayment,  notice of dishonor, notice of redemption and all
other notices and demands.

SECTION 14.4.  No Impairment.

         The  obligations,  covenants,  agreements and duties of the Corporation
under this  Article XIV shall in no way be affected or impaired by reason of the
happening from time to time of any of the following:

                  (a) the  extension of time for the payment by the Trust of all
or any portion of the Expense  Obligations  or for the  performance of any other
obligation   under,   arising  out  of,  or  in  connection  with,  the  Expense
Obligations;

                  (b) any failure,  omission,  delay or lack of diligence on the
part of the  Expense  Beneficiaries  to enforce,  assert or exercise  any right,
privilege,  power or remedy conferred on the Expense  Beneficiaries with respect
to the  Expense  Obligations  or any  action  on the  part of the  Issuer  Trust
granting indulgence or extension of any kind; or


                                                         - 81 -


<PAGE>



                  (c) the  voluntary or  involuntary  liquidation,  dissolution,
sale of any collateral, receivership, insolvency, bankruptcy, assignment for the
benefit of creditors,  reorganization,  arrangement, composition or readjustment
of debt of,  or other  similar  proceedings  affecting,  the Trust or any of the
assets of the Issuer Trust.

There shall be no obligation of the Expense  Beneficiaries to give notice to, or
obtain the consent of, the  Corporation  with respect to the happening of any of
the foregoing.

SECTION 14.5.  Enforcement.

                  An Expense  Beneficiary  may  enforce  this  Article  directly
against  the  Corporation  and the  Corporation  waives  any  right or remedy to
require  that any action be  brought  against  the Trust or any other  person or
entity before proceeding against the Corporation.

SECTION 14.6.  Subrogation.

         The Corporation shall be subrogated to all (if any) rights of the Trust
in respect of any amounts paid to the Expense  Beneficiaries  by the Corporation
under this Article XIV with respect to the  applicable  Issuer Trust;  provided,
however,  that the  Corporation  shall not  (except  to the extent  required  by
mandatory provisions of law) be entitled to enforce or exercise any rights which
it may acquire by way of subrogation or any  indemnity,  reimbursement  or other
agreement,  in all cases as a result of payment  under this  Article XIV, if, at
the time of any such payment,  any amounts are due and unpaid under this Article
XIV.

SECTION 14.7.  Amendment.

                  So  long as  there  remains  any  Expense  Beneficiary  or any
Capital  Securities of an Issuer Trust are  outstanding,  this Article XIV shall
not be modified or amended in any manner adverse to such Expense  Beneficiary of
such Issuer  Trust or to the holders of the  Capital  Securities  of such Issuer
Trust without the written  consent of such Expense  Beneficiary or such holders,
as applicable.

         This Indenture may be executed in any number of  counterparts,  each of
which so executed shall be deemed to be an original,  but all such  counterparts
shall together constitute but one and the same instrument.

                                                         - 82 -


<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed and attested, all as of the day and year first above written.


                                    HSB GROUP, INC.


                                    By:  /s/ Saul L. Basch
                                    Name:  Saul L. Basch
                                    Title: Senior Vice President, Chief
                                    Financial Officer, Treasurer


Attest: 

By:     /s/ R. Kevin Price
        Corporate Secretary



                                   THE FIRST NATIONAL BANK OF
                                   CHICAGO, as Trustee


                                   By: /s/ Melissa G. Weisman
                                   Name: Melissa G. Weisman
                                   Title:     Vice President


Attest:

By:










<PAGE>



                                                Exhibit A -- Form of Restricted
                                                Securities Transfer Certificate








                        RESTRICTED SECURITIES CERTIFICATE

                  (For transfers pursuant to Section 3.5(b) of
                        the Indenture referred to below)


[-------------------------],
  as Securities Registrar
[address]

Re: 7.0% Convertible  Subordinated  Deferrable Interest Debentures of HSB Group,
Inc. (the "Securities")

         Reference is made to the Indenture,  dated as of December 31, 1997 (the
"Indenture"),  between HSB Group, Inc., a Connecticut corporation, and The First
National  Bank of  Chicago,  as  Trustee.  Terms used  herein and defined in the
Indenture or in  Regulation  S, Rule 144A or Rule 144 under the U.S.  Securities
Act of 1933, as amended (the "Securities Act"), are used herein as so defined.

                  This certificate  relates to $__________  aggregate  principal
amount of Securities,  which are evidenced by the following  certificate(s) (the
"Specified Securities"):

                  CUSIP No(s). ___________________________

                  CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the  "Undersigned")
hereby  certifies  that  either  (i)  it is the  sole  beneficial  owner  of the
Specified Securities or (ii) it is acting on behalf of all the beneficial owners
of the  Specified  Securities  and is duly  authorized  by  them to do so.  Such
beneficial  owner or owners are referred to herein  collectively as the "Owner".
Such Specified  Securities are registered in the name of the Undersigned,  as or
on behalf of the Owner.

         The Owner has requested that the Specified Securities be transferred to
another  person  (the  "Transferee")  who will  take  delivery  in the form of a
Restricted  Security.  In  connection  with  such  transfer,  the  Owner  hereby
certifies that,  unless such transfer is being effected pursuant to an effective
registration  statement  under  the  Securities  Act,  it is being  effected  in
compliance  with  the  requirements  of the  Securities  Act or  pursuant  to an
applicable exemption therefrom and in accordance with all applicable  securities
laws of the states of the United States and other jurisdictions.

         This certificate and the statements  contained herein are made for your
benefit and the benefit of the  Corporation and the Purchaser (as defined in the
Trust  Agreement  relating  to the  Issuer  Trust to which the  Securities  were
initially issued).



                                       A-1

<PAGE>







Dated:
                                                     (Print   the  name  of  the
                                                     Undersigned,  as such  term
                                                     is  defined  in the  second
                                                     paragraph      of      this
                                                     certificate.)


                                                     By:
                                                     Name:
                                                     Title:

                                                     (If  the  Undersigned  is a
                                                     corporation, partnership or
                                                     fiduciary, the title of the
                                                     person signing on behalf of
                                                     the  Undersigned   must  be
                                                     stated.)


                                       A-2

<PAGE>



                       EXHIBIT B -- Form of Unrestricted
                       Securities Transfer Certificate


                       UNRESTRICTED SECURITIES CERTIFICATE

                 (For  removal of  Securities  Act  Legends  pursuant to Section
3.5(c) of the Indenture )


The First National Bank of Chicago
One First National Plaza - Suite 0126
Chicago, Illinois 60670-0126

Attention:  Corporate Trust Administration

Re:  7.0%  Convertible   Subordinated   Deferrable   Interest   Debentures  (the
"Securities")

                  Reference is made to the  Indenture,  dated as of December 31,
1997, between HSB Group. Inc. (the "Corporation") and The First National Bank of
Chicago,  as  Trustee  (the  "Trustee").  Terms used  herein and  defined in the
Indenture or in Regulation S or Rule 144 under the U.S.  Securities Act of 1933,
as amended (the "Securities Act"), are used herein as so defined.

         This  certificate  relates to  ________________  shares of  Securities,
which  are   evidenced  by  the   following   certificate(s)   (the   "Specified
Securities"):

         CUSIP No(s). ____________________________

         CERTIFICATE No(s). ______________________

         The  person in whose  name this  certificate  is  executed  below  (the
"Undersigned")  hereby certifies that either (i) it is the sole beneficial owner
of the Specified Securities or (ii) it is acting on behalf of all the beneficial
owners of the Specified Securities and is duly authorized by them to do so. Such
beneficial  owner or owners are referred to herein  collectively as the "Owner".
The Specified  Securities are registered in the name of the Undersigned as or on
behalf of the Owner.

         The Owner has requested that the Specified  Securities be exchanged for
Securities  bearing no Securities  Act Legend  pursuant to Section 5.4(d) of the
Trust  Agreement and Section  3.5(c) of the Indenture.  In connection  with such
exchange,  the Owner hereby  certifies  that the  exchange is occurring  after a
holding period of at least two years  (computed in accordance with paragraph (d)
of Rule 144) has elapsed since the Specified  Securities were last acquired from
the Trust or from an affiliate of the Trust,  whichever is later,  and the Owner
is not, and during the preceding  three months has not been, an affiliate of the
Trust.  The Owner also  acknowledges  that any future transfers of the Specified
Securities must comply with all applicable  securities laws of the states of the
United States and other jurisdictions.


                                       B-1

<PAGE>




         This certificate and the statements  contained herein are made for your
benefit and the benefit of the Trust and the Purchaser.

Dated:___________________________________
                  (Print the name of the Undersigned, as such term is defined in
                  the second paragraph of this certificate.)



                  By:____________________________
                  Name:
                  Title:


                  (If  the   Undersigned  is  a   corporation,   partnership  or
                  fiduciary,  the title of the  person  signing on behalf of the
                  Undersigned must be stated.)



                                       B-2

<PAGE>


                                                                EXHIBIT C


                           NOTICE OF CONVERSION

To:      HSB Group, Inc.

         The undersigned owner of this Security hereby irrevocably exercises the
option to convert this Security,  or the portion below  designated,  into Common
Stock of HSB GROUP, INC. in accordance with the terms of the Indenture  referred
to in this Security,  and directs that the shares issuable and deliverable  upon
conversion,  together with any check in payment for fractional shares, be issued
in the name of and  delivered to the  undersigned,  unless a different  name has
been indicated in the assignment  below.  If shares are to be issued in the name
of a person other than the  undersigned,  the undersigned  will pay all transfer
taxes payable with respect thereto.

         Any Holder,  upon the exercise of its  conversion  rights in accordance
with the  terms of the  Indenture  and the  Security,  agrees to be bound by the
terms of the Registration Rights Agreement relating to the Common Stock issuable
upon conversion of the Security.

Date:             

in whole
        ----------
                                          Portions of Security to be converted
in part                                  ($1,000 or integral multiples thereof):
        ----------
                                          $
                                            ----------------------------      

                                            ----------------------------
                                          Signature (for conversion only)

                                   Please Print or Typewrite Name and
                                   Address, Including Zip Code, and Social
                                   Security or Other Identifying Number

                                   ------------------------------------



Signature Guarantee: *
                       ---------------------
*        Signature must be guaranteed by an institution which is a member of one
         of the  following  recognized  Signature  Guaranty  Programs:  (i)  The
         Securities Transfer Agent Medallion Program (STAMP);  (ii) The New York
         Stock  Exchange  Medallion  Program  (MSP);  (iii) The  Stock  Exchange
         Medallion  Program  (SEMP);  or (iv) in such other  guarantee  programs
         acceptable to the Trustee.

0148917.04-01S7a
                                                   C-1

<PAGE>




                                                           Exhibit 4.3

                                 HSB GROUP, INC.

7.0% Convertible Subordinated Deferrable Interest Debentures due December 31,
2017

THE CONVERTIBLE SUBORDINATED INTEREST DEFERRABLE DEBENTURES EVIDENCED HEREBY AND
THE COMMON STOCK ISSUABLE UPON THEIR  CONVERSION HAVE NOT BEEN REGISTERED  UNDER
THE U.S.  SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND MAY NOT
BE OFFERED,  SOLD,  PLEDGED OR OTHERWISE  TRANSFERRED EXCEPT IN WHOLE OR IN PART
(BUT IF IN PART, IN AMOUNTS NOT LESS THAN  $10,000,000 IN PRINCIPAL  AMOUNT) AND
ONLY IN COMPLIANCE WITH THE REQUIREMENTS OF THE U.S.  SECURITIES ACT OF 1933, AS
AMENDED, OR PURSUANT TO AN APPLICABLE EXCEMPTION THEREFROM.


No. R-1                                                            $309,300,000

HSB  GROUP,   INC.,   a   Connecticut   corporation   (hereinafter   called  the
"Corporation",  which term  includes any  successor  Person under the  Indenture
hereinafter  referred  to), for value  received,  hereby  promises to pay to The
First  National  Bank of  Chicago,  as Property  Trustee,  pursuant to the Trust
Agreement  of HSB  Capital II,  dated as of December  31,  1997,  or  registered
assigns,  the principal sum of Three Hundred Nine Million Three Hundred Thousand
($309,300,000)  Dollars on December 31, 2017;  provided that the Corporation may
shorten the Stated  Maturity  of the  principal  of this  Security to a date not
earlier  than  December 31, 2012 in the  circumstances  described on the reverse
hereof.  The Corporation  further promises to pay interest on said principal sum
from  December 31, 1997 or from the most recent  Interest  Payment Date to which
interest has been paid or duly provided for,  semi-annually (subject to deferral
as set  forth  herein)  in  arrears  on  January  15 and  July 15 of each  year,
commencing  January  15,  1998,  at the rate of 7.0% per  annum,  together  with
Additional  Sums, if any, as provided in Section 10.6 of the Indenture until the
principal hereof is paid or duly provided for or made available for payment. The
amount of interest payable for any period less than a full interest period shall
be  computed  on the basis of a 360-day  year of twelve  30-day  months  and the
actual days elapsed in a partial  month in such  period.  The amount of interest
payable  for any  full  interest  period  shall  be  computed  by  dividing  the
applicable  rate per annum by two. The interest so payable,  and punctually paid
or duly  provided  for, on any Interest  Payment  Date will,  as provided in the
Indenture,  be paid to the  Person in whose name this  Security  (or one or more
Predecessor  Securities)  is  registered at the close of business on the Regular
Record Date for such interest installment,  which shall be the January 1 or July
1 (whether  or not a Business  Day),  as the case may be,  next  preceding  such
Interest Payment Date. Any such interest not so punctually paid or duly provided
for shall  forthwith  cease to be payable to the Holder on such  Regular  Record
Date and may either be paid to the Person in whose name this Security (or one or
more Predecessor Securities) is registered at the close of business on a Special
Record  Date  for the  payment  of such  Defaulted  Interest  to be fixed by the
Trustee, notice whereof shall be given to Holders of Securities not less than 10
days  prior to such  Special  Record  Date,  or be paid at any time in any other
lawful manner not inconsistent with the requirements of any securities  exchange
on which the Security may be listed,  and upon such notice as may be required by
such exchange, all as more fully provided in said Indenture.

So long as no Event of Default has occurred and is continuing,  the  Corporation
shall have the right, at any time during the term of this Security, from time to
time to defer the payment of interest on this Security for up to ten consecutive
semi-annual  interest payment periods with respect to each deferral period (each
an "Extension  Period"),  during which Extension  Periods the Corporation  shall
have the right to make  partial  payments of interest  on any  Interest  Payment
Date,  and at the end of which  the  Corporation  shall  pay all  interest  then
accrued and unpaid;  provided,  however,  that no Extension  Period shall extend
beyond the Stated  Maturity of the principal of this Security as then in effect,
and no such  Extension  Period may end on a date other than an Interest  Payment
Date; and provided further,  however, that during any such Extension Period, the
Corporation  shall not (i) declare or pay any dividends or distributions  on, or
redeem, purchase,  acquire or make a liquidation payment with respect to, any of
the  Corporation's  capital  stock,  or (ii) make any payment of principal of or
interest  or  premium,  if any,  on or  repay,  repurchase  or  redeem  any debt
securities  of the  Corporation  that rank pari  passu in all  respects  with or
junior in interest to this  Security or (iii) make any  guarantee  payments with
respect  to any  guarantee  by the  Corporation  of the debt  securities  of any
subsidiary of the  Corporation if such guarantee ranks pari passu with or junior
in interest to the  Securities  (other than (a)  dividends or  distributions  in
common stock of the Corporation, (b) any declaration of a dividend in connection
with the implementation of a stockholders' rights plan, or the issuance of stock
under any such plan in the future,  or the  redemption or repurchase of any such
rights pursuant  thereto,  (c) payments under the Guarantee and (d) purchases of
common stock  related to the issuance of common stock or rights under any of the
Corporation's or its subsidiaries'  benefit plans for their directors,  officers
or  employees).  Prior to the  termination  of any such  Extension  Period,  the
Corporation  may  further  defer  the  payment  of  interest,  provided  that no
Extension  Period  shall exceed ten  consecutive  semi-annual  interest  payment
periods,  and shall not extend  beyond the Stated  Maturity of the  principal of
this  Security or end on a date other than an Interest  Payment  Date.  Upon the
termination of any such Extension Period and upon the payment of all accrued and
unpaid interest then due on any Interest Payment Date, the Corporation may elect
to  begin  a  new  Extension  Period,  subject  to  the  above  conditions.  The
Corporation shall give the Holder of this Security and the Trustee notice of its
election to begin any  Extension  Period at least one  Business Day prior to the
next succeeding  Interest  Payment Date on which interest on this Security would
be payable but for such deferral or so long as such  Securities  are held by HSB
Capital  II, at least one  Business  Day  prior to the  earlier  of (i) the next
succeeding date on which  Distributions on the Capital Securities of such Issuer
Trust  would be payable  but for such  deferral,  and (ii) the date on which the
Property  Trustee of such Issuer  Trust is required to give notice to holders of
such Capital  Securities of the record date or the date such  Distributions  are
payable.

         Payment of the principal of (and premium,  if any) and interest on this
Security will be made at the office or agency of the Corporation  maintained for
that  purpose  in New  York,  New York or  Chicago,  Illinois,  in such  coin or
currency  of the  United  States of  America  as at the time of payment is legal
tender for payment of public and private debts;  provided,  however, that at the
option of the Corporation payment of interest may be made (i) by check mailed to
the address of the Person  entitled  thereto as such address shall appear in the
Securities Register,  or (ii) by wire transfer in immediately available funds at
such place and to such  account  as may be  designated  by the  Person  entitled
thereto as specified in the Securities Register.

         The indebtedness  evidenced by this Security is, to the extent provided
in the  Indenture,  subordinate  and  junior  in right of  payment  to the prior
payment in full of all Senior Indebtedness, and ranks pari passu with HSB Group,
Inc.'s Global Floating Rate Junior Subordinated  Debentures,  Series B, and this
Security is issued  subject to the  provisions  of the  Indenture  with  respect
thereto.  Each Holder of this Security, by accepting the same, (a) agrees to and
shall be bound by such  provisions,  (b)  authorizes  and directs the Trustee on
such Holder's  behalf to take such actions as may be necessary or appropriate to
effectuate the  subordination  so provided,  and (c) appoints the Trustee his or
her attorney-in-fact for any and all such purposes.  Each Holder hereof, by such
Holder's  acceptance  hereof,  waives  all  notice  of  the  acceptance  of  the
subordination provisions contained herein and in the Indenture by each holder of
Senior Indebtedness,  whether now outstanding or hereafter incurred,  and waives
reliance by each such holder upon said provisions.

         Reference is hereby made to the further provisions of this Security set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

         Unless the  certificate of  authentication  hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall  not be  entitled  to any  benefit  under  the  Indenture  or be  valid or
obligatory for any purpose.



         IN WITNESS  WHEREOF,  the  Corporation has caused this instrument to be
duly executed under its corporate seal.

                                             HSB GROUP, INC.


                                             By:        /s/ Saul L. Basch
                                             Name:      Saul L. Basch
                                             Title:     Senior Vice President,
                                                        Treasurer and Chief
                                                        Financial Officer

Attest:

/s/ Roberta A. O'Brien
Assistant Corporate Secretary

         SECTION 2.3.  Form of Reverse of Security.

         This  Security  is  a  duly  authorized  issue  of  securities  of  the
Corporation  (herein called the  "Securities"),  limited in aggregate  principal
amount to  $309,300,000,  issued under the  Indenture,  dated as of December 31,
1997 (herein  called the  "Indenture"),  between the  Corporation  and The First
National Bank of Chicago,  as Trustee  (herein called the "Trustee",  which term
includes any successor trustee under the Indenture),  to which Indenture and all
indentures  supplemental thereto reference is hereby made for a statement of the
respective rights,  limitations of rights,  duties and immunities  thereunder of
the Corporation, the Trustee, the holders of Senior Indebtedness and the Holders
of the  Securities,  and of the terms upon which the Securities  are, and are to
be, authenticated and delivered.

         All terms used in this Security that are defined in the Indenture or in
the Trust  Agreement,  dated as of December  31, 1997 (as  modified,  amended or
supplemented from time to time, the "Trust Agreement"),  relating to HSB Capital
II (the "Issuer Trust") among the Corporation,  as Depositor, the Trustees named
therein  and the  Holders  from  time to time  of the  Trust  Securities  issued
pursuant  thereto,  shall have the meanings assigned to them in the Indenture or
the Trust Agreement, as the case may be.

         The  Corporation  may  at any  time,  at its  option,  (i) on or  after
December 31, 2004 or (ii) for a reason specified in Article XI of the Indenture,
in  both  cases  subject  to the  terms  and  conditions  of  Article  XI of the
Indenture,  redeem  this  Security  in whole at any time or in part from time to
time  at a  Redemption  Price  equal  to 100% of the  principal  amount  hereof,
together,  in the case of any such  redemption,  with  accrued  interest  to but
excluding the Redemption Date fixed for redemption.

         Under limited circumstances,  Employers Reinsurance Corporation may, at
its  option  and  subject  to the  terms and  conditions  of  Article  XI of the
Indenture,  require  the  Corporation  to redeem this  Security  in whole,  at a
Redemption Price as stated in Section 11.8 of the Indenture.

         In addition,  upon the occurrence and during the  continuation of a Tax
Event in respect of the Issuer Trust, the Corporation may, at its option, at any
time within 90 days of the  occurrence and during the  continuation  of such Tax
Event, redeem this Security,  in whole but not in part, subject to the terms and
conditions of Article XI of the Indenture,  at a Redemption  Price equal to 100%
of the principal amount of the 7.0% Convertible Subordinated Deferrable Interest
Debentures so redeemed plus accrued and unpaid  interest  thereon to the date of
redemption.

         In the  event  of  redemption  of this  Security  in part  only,  a new
Security or Securities for the  unredeemed  portion hereof will be issued in the
name of the Holder hereof upon the cancellation hereof.

         The Indenture contains provisions for satisfaction and discharge of the
entire  indebtedness of this Security upon  compliance by the  Corporation  with
certain conditions set forth in the Indenture.

         The Indenture permits, with certain exceptions as therein provided, the
Corporation  and the Trustee at any time to enter into a supplemental  indenture
or  indentures  for the  purpose  of  modifying  in any  manner  the  rights and
obligations of the Corporation  and of the Holders of the  Securities,  with the
consent of the  Holders of not less than a majority in  principal  amount of the
Outstanding  Securities  to be  affected  by such  supplemental  indenture.  The
Indenture also contains provisions  permitting Holders of specified  percentages
in principal amount of the Securities at the time Outstanding,  on behalf of the
Holders of all Securities,  to waive  compliance by the Corporation with certain
provisions of the  Indenture  and certain past defaults  under the Indenture and
their  consequences.  Any such consent or waiver by the Holder of this  Security
shall be conclusive  and binding upon such Holder and upon all future Holders of
this  Security  and of any  Security  issued upon the  registration  of transfer
hereof or in exchange hereof or in lieu hereof,  whether or not notation of such
consent or waiver is made upon this Security.

     As provided in and subject to the provisions of the Indenture,  if an Event
of Default with respect to the Securities at the time Outstanding  occurs and is
continuing,  then and in every such case the  Trustee or the Holders of not less
than 25% in aggregate principal amount of the Outstanding Securities may declare
the  principal  amount of all the  Outstanding  Securities to be due and payable
immediately,  by a notice in writing to the  Corporation  (and to the Trustee if
given by Holders),  provided  that, if upon an Event of Default,  the Trustee or
such Holders fail to declare the principal of all the Outstanding  Securities to
be  immediately  due and  payable,  the  holders  of at least  25% in  aggregate
Liquidation  Amount of the Capital  Securities then  Outstanding  shall have the
right to make such declaration by a notice in writing to the Corporation and the
Trustee; and upon any such declaration the principal of and the accrued interest
on all the Securities  shall become  immediately due and payable,  provided that
the payment of such  principal  and  interest on such  Securities  shall  remain
subordinated to the extent provided in Article XII of the Indenture.

         Subject to the terms and  conditions  set forth in Article  XIII of the
Indenture,  this  Security is  convertible,  at the option of the  Holder,  into
shares of Common Stock.

         No reference  herein to the Indenture and no provision of this Security
or of the Indenture  shall alter or impair the  obligation  of the  Corporation,
which is absolute and  unconditional,  to pay the principal of (and premium,  if
any) and interest on this Security at the times, place and rate, and in the coin
or currency, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set forth,  the  transfer of this  Security  is  registrable  in the  Securities
Register,  upon surrender of this Security for  registration  of transfer at the
office  or  agency  of the  Corporation  maintained  under  Section  10.2 of the
Indenture  for such  purpose,  duly  endorsed  by, or  accompanied  by a written
instrument  of  transfer  in  form  satisfactory  to  the  Corporation  and  the
Securities  Registrar  duly  executed  by,  the Holder  hereof or such  Holder's
attorney duly  authorized in writing,  and thereupon one or more new Securities,
of like tenor, of authorized  denominations and for the same aggregate principal
amount, will be issued to the designated transferee or transferees.

         The Securities are issuable only in registered  form without coupons in
denominations  of  $10,000,000  and any integral  multiple of $100,000 in excess
thereof. As provided in the Indenture and subject to certain limitations therein
set forth,  Securities are exchangeable for a like aggregate principal amount of
Securities  and  of  like  tenor  of a  different  authorized  denomination,  as
requested by the Holder surrendering the same.

         No service charge shall be made for any such  registration  of transfer
or exchange,  but the  Corporation  may require  payment of a sum  sufficient to
cover any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Security for registration of transfer,
the Corporation, the Trustee and any agent of the Corporation or the Trustee may
treat the Person in whose name this  Security is  registered as the owner hereof
for all  purposes,  whether or not this  Security  be  overdue,  and neither the
Corporation,  the  Trustee nor any such agent shall be affected by notice to the
contrary.

         The Corporation and, by its acceptance of this Security or a beneficial
interest  therein,  the Holder of, and any  Person  that  acquires a  beneficial
interest in, this Security agree that for United States Federal, state and local
tax purposes it is intended that this Security constitute indebtedness.

         THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK.

The Trustee's certificates of authentication shall be in substantially the
following form:

This is one of the Securities referred to in the within-mentioned Indenture.

Dated:  December 31, 1997

THE FIRST NATIONAL BANK OF CHICAGO
as Trustee



By: /s/ Steve M. Husbands
Authorized Officer

                                                            Exhibit 4.4


                              CERTIFICATE OF TRUST
                                OF HSB CAPITAL II

                  This  Certificate  of Trust of HSB  Capital II (the  "Trust"),
dated  as of  December  31,  1997,  is  being  duly  executed  and  filed by the
undersigned,  as trustee,  to form a business trust under the Delaware  Business
Trust Act (12 Del. C. (S) 3801 et seq.).

               1. NAME.  The name of the business  trust being formed  hereby is
HSB Capital II.

               2.  DELAWARE  TRUSTEE.  The name and  business  address of the
trustee of the Trust with a principal place of business in the State of Delaware
is: First Chicago Delaware Inc., 300 King Street, Wilmington, Delaware 19801.

               3.  EFFECTIVE  DATE.  This   Certificate  of  Trust  shall  be
affective upon the filing of this Certificate of Trust.

               IN WITNESS WHEREOF,  the undersigned trustee of the Trust, has
executed this Certificate of Trust as of the date first above written.



                              Name: Saul L. Basch
                              Title: Administrative Trustee



                              Name: Roberta O'Brien
                              Title: Administrative Trustee


                              Name:  Robert C. Walker
                              Title: Administrative Trustee


                              FIRST CHICAGO DELAWARE INC.,
                              as Delaware Trustee


                              By:
                              Name:  Melissa G. Weisman
                              Title: Vice President





                                                            Exhibit 4.5

                                 TRUST AGREEMENT

                                      among


                                HSB GROUP, INC.,
                                  as Depositor


                       THE FIRST NATIONAL BANK OF CHICAGO
                               as Property Trustee


                           FIRST CHICAGO DELAWARE INC.
                               as Delaware Trustee


                                       and


                    THE ADMINISTRATIVE TRUSTEES NAMED HEREIN


                           ---------------------------



                          Dated as of December 31, 1997


                           ---------------------------



                                 HSB CAPITAL II






<PAGE>



                                 HSB CAPITAL II

                Certain Sections of this Trust Agreement relating
               to Sections 310 through 318 of the Trust Indenture
                                  Act of 1939:

Trust Indenture Act Section                            Trust Agreement Section

((ss.))  310    (a)(1).....................................     8.7
                (a)(2).....................................     8.7
                (a)(3).....................................     8.9
                (a)(4).....................................     2.7(a)(ii)
                (b)........................................     8.8
((ss.))  311    (a).......................................      8.13
                (b)........................................     8.13
((ss.))  312    (a)........................................     5.7
                (b)........................................     5.7
                (c)........................................     5.7
((ss.))  313    (a)........................................     8.15
                (a)(4).....................................     8.15
                (b)........................................     8.15
                (c)........................................     10.8
                (d)........................................     8.15(c)
((ss.))  314    (a)........................................     8.16
                (b)........................................     Not Applicable
                (c)(1).....................................     8.17
                (c)(2).....................................     8.17
                (c)(3).....................................     Not Applicable
                (d)........................................     Not Applicable
                (e)........................................     1.1, 8.17
((ss.))  315    (a)........................................     8.1(a), 8.3(a)
                (b)........................................     8.2, 10.8
                (c)........................................     8.1(a)
                (d)........................................     8.1, 8.3
                (e)........................................     Not Applicable
((ss.))  316    (a)........................................     Not Applicable
                (a)(1)(A)..................................     Not Applicable
                (a)(1)(B)..................................     Not Applicable
                (a)(2).....................................     Not Applicable
                (b)........................................     5.12
                (c)........................................     6.7
((ss.))  317    (a)(1).....................................     Not Applicable
                (a)(2).....................................     Not Applicable
                (b)........................................     5.9
((ss.))  318    (a)........................................     10.10

- ----------------------- 
Note: This reconciliation and tie sheet shall not, for any purpose, be deemed to
be a part of the Trust Agreement.



<PAGE>



                               TABLE OF CONTENTS

                                                                        Page
          


                                    ARTICLE I

                                  DEFINED TERMS

SECTION 1.1. Definitions....................................................  1


                          ARTICLE II

               ESTABLISHMENT OF THE ISSUER TRUST

SECTION 2.1. Name     ....................................................... 11
SECTION 2.2. Office of the Delaware Trustee; Principal Place of Business....  11
SECTION 2.3. Initial Contribution of Trust Property; Organizational Expenses  11
SECTION 2.4. Issuance of the Capital Securities.............................  12
SECTION 2.5. Issuance of the Common Securities; Subscription and Purchase o f
                      Debentures............................................  12
SECTION 2.6. Declaration of Trust...........................................  12
SECTION 2.7. Authorization to Enter into Certain Transactions...............  13

SECTION 2.8. Assets of Trust................................................  16
SECTION 2.9. Title to Trust Property........................................  16


                          ARTICLE III

                        PAYMENT ACCOUNT

SECTION 3.1. Payment Account................................................. 16

                          ARTICLE IV

             DISTRIBUTIONS; REDEMPTION; CONVERSION

SECTION 4.1. Distributions................................................... 17
SECTION 4.2. Redemption...................................................... 18
SECTION 4.3. Conversion...................................................... 21
SECTION 4.4. Subordination of Common Securities.............................. 23


                                                i

<PAGE>



SECTION 4.5. Payment Procedures.............................................. 24
SECTION 4.6. Tax Returns and Reports......................................... 24
SECTION 4.7. Payment of Taxes, Duties, Etc. of the Issuer Trust.............. 24
SECTION 4.8. Payments under Indenture or Pursuant to Direct Actions.......... 24

                           ARTICLE V

                 TRUST SECURITIES CERTIFICATES
SECTION 5.1. Initial Ownership.............................................. 25
SECTION 5.2. The Trust Securities Certificates.............................. 25
SECTION 5.3. Execution and Delivery of Trust Securities Certificates........ 25
SECTION 5.4. Registration, Transfer and Exchange Generally; Certain Transfers
             and Exchanges; Securities Act Legends.......................... 26
SECTION 5.5. Mutilated, Destroyed, Lost or Stolen Trust Securities
             Certificates................................................... 29
SECTION 5.6. Persons Deemed Holders......................................... 30
SECTION 5.7. Access to List of Holders' Names and Addresses................. 30
SECTION 5.8. Maintenance of Office or Agency................................ 30
SECTION 5.9. Appointment of Paying Agents................................... 31
SECTION 5.10. Ownership of Common Securities by Depositor................... 31
SECTION 5.11. Restrictive Legends........................................... 32



                          ARTICLE VI

               ACTS OF HOLDERS; MEETINGS; VOTING

SECTION 6.1. Limitations on Voting Rights.....................................34
SECTION 6.2. Notice of Meetings...............................................35
SECTION 6.3. Meetings of Holders of the Capital Securities....................35
SECTION 6.4. Voting Rights....................................................36
SECTION 6.5. Proxies, etc.....................................................36
SECTION 6.6. Holder Action by Written Consent.................................36
SECTION 6.7. Record Date for Voting and Other Purposes........................36
SECTION 6.8. Acts of Holders..................................................37
SECTION 6.9. Inspection of Records............................................38

                          ARTICLE VII

                REPRESENTATIONS AND WARRANTIES

SECTION 7.1. Representations and Warranties of the Property Trustee and the 
             Delaware Trustee................................................ 38
SECTION 7.2. Representations and Warranties of Depositor..................... 39


                                               ii

<PAGE>




                                  ARTICLE VIII

                       THE ISSUER TRUSTEES; PAYING AGENTS

 SECTION 8.1. Certain Duties and Responsibilities.......................... 40
 SECTION 8.2. Certain Notices.............................................. 42
 SECTION 8.3. Certain Rights of Property Trustee........................... 43
 SECTION 8.4. Not Responsible for Recitals or Issuance of Securities....... 45


 SECTION 8.5. May Hold Securities.......................................... 45
 SECTION 8.6. Compensation; Indemnity; Fees................................ 45
 SECTION 8.7. Corporate Property Trustee Required; Eligibility of Issuer
              Trustees..................................................... 46
 SECTION 8.8. Conflicting Interests........................................ 47
 SECTION 8.9. Co-Trustees and Separate Trustee............................. 47
 SECTION 8.10. Resignation and Removal; Appointment of Successor........... 49
 SECTION 8.11. Acceptance of Appointment by Successor...................... 50
 SECTION 8.12. Merger, Conversion, Consolidation or Succession to Business. 51
 SECTION 8.13. Preferential Collection of Claims Against Depositor or 
               Issuer Trust................................................ 51
 SECTION 8.14. Property Trustee May File Proofs of Claim................... 51
 SECTION 8.15. Reports by Property Trustee................................. 52
 SECTION 8.16. Reports to the Property Trustee............................. 53
 SECTION 8.17. Evidence of Compliance with Conditions Precedent............ 53
 SECTION 8.18. Number of Issuer Trustees................................... 53
 SECTION 8.19. Delegation of Power......................................... 53
 SECTION 8.20. Appointment of Administrative Trustees...................... 54

                           ARTICLE IX

               DISSOLUTION, LIQUIDATION AND MERGER
 SECTION 9.1. Dissolution Upon Expiration Date............................. 54
 SECTION 9.2. Early Dissolution............................................ 55
 SECTION 9.3. Termination.................................................. 55
 SECTION 9.4. Liquidation.................................................. 55
 SECTION 9.5. Mergers, Consolidations, Amalgamations or Replacements of 
              Issuer Trust................................................. 57

                            ARTICLE X

                    MISCELLANEOUS PROVISIONS

 SECTION 10.1. Limitation of Rights of Holders............................. 58
 SECTION 10.2. Amendment................................................... 58
 SECTION 10.3. Separability................................................ 59
 SECTION 10.4. Governing Law............................................... 59


                                                iii

<PAGE>



 SECTION 10.5. Payments Due on Non-Business Day............................. 60
 SECTION 10.6. Successors................................................... 60
 SECTION 10.7. Headings..................................................... 60
 SECTION 10.8. Reports, Notices and Demands................................. 60
 SECTION 10.9. Agreement Not to Petition.................................... 61
 SECTION 10.10. Trust Indenture Act; Conflict with Trust Indenture Act...... 62
 SECTION 10.11. Acceptance of Terms of Trust Agreement, Guarantee Agreement
                and Indenture............................................... 62


 Exhibit A         Certificate of Trust
 Exhibit B         Form of Common Securities Certificate
 Exhibit C         Form of Capital Securities Certificate
 Exhibit D         Form of Restricted Securities Certificate
 Exhibit E         Form of Unrestricted Securities Certificate
 Exhibit F         Notice of Conversion


                               iv

<PAGE>



         TRUST  AGREEMENT,  dated as of December 31, 1997,  among (i) HSB Group,
Inc., a  Connecticut  corporation  (including  any  successors  or assigns,  the
"Depositor"),  (ii) The First  National  Bank of  Chicago,  a  national  banking
association as property trustee (in such capacity,  the "Property  Trustee" and,
in its separate  corporate capacity and not in its capacity as Property Trustee,
the "Bank"),  (iii) First  Chicago  Delaware  Inc., a Delaware  corporation,  as
Delaware trustee (in such capacity,  the "Delaware  Trustee"),  and (iv) Saul L.
Basch, an individual,  Roberta O'Brien, an individual,  and Robert C. Walker, an
individual,  each of whose  address is c/o HSB Group,  Inc.,  One State  Street,
Hartford,  Connecticut 06102 (each an "Administrative  Trustee"),  (the Property
Trustee, the Delaware Trustee and the Administrative  Trustees being referred to
collectively as the "Issuer Trustees").


                                                    WITNESSETH

         WHEREAS,  the  Depositor  and the Issuer  Trustees  hereby  declare and
create a business trust pursuant to the Delaware  Business Trust Act by entering
into  this  Trust  Agreement,   dated  as  of  December  31,  1997  (the  "Trust
Agreement"),  and by the  execution  of the  Certificate  of Trust by the Issuer
Trustees and the filing of such Certificate of Trust with the Secretary of State
of the State of Delaware on December 31, 1997, attached as Exhibit A; and

         WHEREAS,  the  Depositor and the Issuer  Trustees  desire to enter into
this Trust  Agreement to provide for,  among other things,  (i) the issuance and
sale of the Common  Securities  by the Issuer Trust to the  Depositor,  (ii) the
issuance and sale of the Capital  Securities by the Issuer Trust pursuant to the
Purchase Agreement, (iii) the acquisition by the Issuer Trust from the Depositor
of all of the  right,  title  and  interest  in the  Debentures,  and  (iv)  the
appointment  of the  Property  Trustee  and  certain  additional  Administrative
Trustees;

         NOW THEREFORE,  in  consideration of the agreements and obligations set
forth  herein and for other good and  valuable  consideration,  the  receipt and
sufficiency of which is hereby acknowledged,  each party, for the benefit of the
other parties and for the benefit of the Holders,  hereby enters into this Trust
Agreement and agrees as follows:


                                    ARTICLE I

                                  DEFINED TERMS

         SECTION 1.1. Definitions.

         For all purposes of this Trust Agreement, except as otherwise expressly
provided or unless the context otherwise requires:

         (a) The terms  defined in this Article  have the  meanings  assigned to
them in this Article, and include the plural as well as the singular;



<PAGE>




         (b) All other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

         (c) The words "include",  "includes" and "including" shall be deemed to
be followed by the phrase "without limitation";

         (d) All accounting  terms used but not defined herein have the meanings
assigned to them in accordance with United States generally accepted  accounting
principles;

         (e)  Unless  the  context  otherwise  requires,  any  reference  to  an
"Article",  a "Section"  or an "Exhibit"  refers to an Article,  a Section or an
Exhibit, as the case may be, of or to this Trust Agreement; and

         (f) The words  "hereby",  "herein",  "hereof" and "hereunder" and other
words of similar import refer to this Trust  Agreement as a whole and not to any
particular Article, Section or other subdivision.

         "Act" has the meaning specified in Section 6.8.

        "Additional  Sums" has the meaning  specified  in Section  10.6 of the
Indenture.

         "Administrative Trustee" means each Person appointed in accordance with
Section 8.20 solely in such Person's capacity as  Administrative  Trustee of the
Issuer Trust heretofore created and continued hereunder and not in such Person's
individual capacity, or any successor Administrative Trustee appointed as herein
provided.

         "Affiliate" of any specified  Person means any other Person directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control"  when used with  respect to any  specified  Person  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

          "Bank"  has the  meaning  specified  in the  preamble  to  this  Trust
Agreement.

         "Bankruptcy Event" means, with respect to any Person:

         (a) the entry of a decree or order by a court  having  jurisdiction  in
the  premises  judging  such Person a bankrupt or  insolvent,  or  approving  as
properly filed a petition seeking reorganization,  arrangement,  adjudication or
composition  of or in respect of such  Person  under any  applicable  Federal or
State bankruptcy, insolvency, reorganization or other similar law, or appointing
a  receiver,  liquidator,  assignee,  trustee,  sequestrator  (or other  similar
official) of such Person or of any substantial  part of its property or ordering
the winding up or liquidation of its


                                                         2

<PAGE>



affairs,  and the continuance of any such decree or order unstayed and in effect
for a period of 60 consecutive days; or

         (b) the  institution  by such Person of proceedings to be adjudicated a
bankrupt or insolvent,  or the consent by it to the institution of bankruptcy or
insolvency  proceedings  against it, or the filing by it of a petition or answer
or consent  seeking  reorganization  or relief under any  applicable  Federal or
State  bankruptcy,  insolvency,  reorganization  or other  similar  law,  or the
consent  by it to the filing of any such  petition  or to the  appointment  of a
receiver,  liquidator,  assignee, trustee, sequestrator (or similar official) of
such Person or of any substantial  part of its property,  or the making by it of
an assignment for the benefit of creditors, or the admission by it in writing of
its inability to pay its debts  generally as they become due and its willingness
to be adjudicated a bankrupt,  or the taking of corporate  action by such Person
in furtherance of any such action.

         "Bankruptcy Laws" has the meaning specified in Section 10.9.

         "Board of  Directors"  means the board of directors of the Depositor or
the Executive Committee of the board of directors of the Depositor (or any other
committee  of the  board  of  directors  of  the  Depositor  performing  similar
functions) or a committee  designated by the board of directors of the Depositor
(or any  such  committee),  comprised  of two or more  members  of the  board of
directors of the Depositor or officers of the Depositor, or both.

         "Business  Day" means a day other than (a) a Saturday or Sunday,  (b) a
day on which banking  institutions in The City of New York are authorized by law
or  executive  order  to  remain  closed,  or (c) a day on  which  the  Property
Trustee's  corporate trust office or the corporate trust office of the Debenture
Trustee is closed for business.

         "Capital  Securities   Certificate"  means  a  certificate   evidencing
ownership of Capital  Securities,  substantially in the form attached as Exhibit
C.

         "Capital Security" means an undivided beneficial interest in the assets
of the Issuer Trust, having a Liquidation Amount of $1,000 and having the rights
provided  therefor  in this  Trust  Agreement,  including  the right to  receive
Distributions and a Liquidation  Distribution to the extent provided herein, and
designated as Convertible Capital Securities, Series A.

          "Closing  Date" means the date of execution and delivery of this Trust
Agreement.

         "Code" means the Internal Revenue Code of 1986, as amended.

         "Commission" means the Securities and Exchange Commission, as from time
to time  constituted,  or, if at any time after the execution of this instrument
such  Commission  is not existing and  performing  the duties now assigned to it
under the Trust  Indenture  Act,  then the body  performing  such duties at such
time.



                                                         3

<PAGE>



         "Common  Securities   Certificate"   means  a  certificate   evidencing
ownership of Common Securities, substantially in the form attached as Exhibit B.

         "Common Security" means an undivided  beneficial interest in the assets
of the Issuer Trust, having a Liquidation Amount of $1,000 and having the rights
provided  therefor  in this  Trust  Agreement,  including  the right to  receive
Distributions and a Liquidation Distribution to the extent provided herein.

          "Common  Stock" means  common  stock,  no par value per share,  of the
Depositor.

         "Conversion Agent" has the meaning specified in Section 4.3.

         "Conversion Date" has the meaning specified in Section 4.3.

         "Conversion Price" has the meaning specified in Section 4.3.

         "Corporate  Trust  Office"  means  (i) when used  with  respect  to the
Property  Trustee,  the  principal  office of the  Property  Trustee  located in
Chicago, Illinois, and (ii) when used with respect to the Debenture Trustee, the
principal office of the Debenture Trustee located in Chicago, Illinois.

         "Current Market Price", with respect to the Common Stock, means for any
day the last reported sale price, regular way, on such day, or, if no sale takes
place on such day, the average of the  reported  closing bid and asked prices on
such day, regular way, in either case as reported on the New York Stock Exchange
Composite  Transactions  Tape, or, if the Common Stock is not listed or admitted
to trading on the New York Stock Exchange on such day, on the principal national
securities  exchange on which the Common Stock is listed or admitted to trading,
if the Common Stock is listed on a national securities  exchange,  or the Nasdaq
National Market, or, if the Common Stock is not quoted or admitted to trading on
such quotation  system,  on the principal  quotation  system on which the Common
Stock may be listed or  admitted  to  trading  or  quoted,  or, if not listed or
admitted to trading or quoted on any national  securities  exchange or quotation
system,  the average of the closing bid and asked  prices of the Common Stock in
the  over-the-counter  market on the day in question as reported by the National
Quotation  Bureau  Incorporated,  or  a  similar  generally  accepted  reporting
service,  or, if not so available  in such manner,  as furnished by any New York
Stock Exchange  member firm selected from time to time by the Board of Directors
for that purpose or, if not so available in such manner, as otherwise determined
in good faith by the Board of Directors.

         "Debenture Event of Default" means any "Event of Default"  specified in
Section 5.1 of the Indenture.

         "Debenture Redemption Date" means, with respect to any Debentures to be
redeemed as set forth under the Indenture, the date fixed for redemption of such
Debentures under the Indenture.


                                                         4

<PAGE>




         "Debenture Trustee" means the Person identified as the "Trustee" in the
Indenture,  solely in its capacity as Trustee  pursuant to the Indenture and not
in its individual  capacity,  or its successor in interest in such capacity,  or
any successor Trustee appointed as provided in the Indenture.

         "Debentures"  means  the  Depositor's  7.0%  Convertible   Subordinated
Deferrable Interest Debentures, issued pursuant to the Indenture.

         "Delaware  Business  Trust  Act"  means  Chapter  38 of Title 12 of the
Delaware Code, 12 Del. Code ss. 3801 et seq., or any successor  statute thereto,
in each case as amended from time to time.

         "Delaware  Trustee"  means  the  Person  identified  as  the  "Delaware
Trustee" in the  preamble  to this Trust  Agreement,  solely in its  capacity as
Delaware Trustee of the trust heretofore created and continued hereunder and not
in its individual  capacity,  or its successor in interest in such capacity,  or
any successor Delaware trustee appointed as herein provided.

          "Depositor"  has the meaning  specified  in the preamble to this Trust
Agreement.

         "Direct Action" has the meaning specified in Section 5.12(c).

         "Distribution Amount" means, with respect to any Trust Security and any
Distribution  period,  the  amount of  Distributions  payable in respect of such
Distribution   period,   which  amount  shall  be  calculated  by  applying  the
Distribution Rate to the Liquidation  Amount of each Trust Security  Outstanding
at the commencement of the Distribution  period, by multiplying each such amount
by the actual number of days in the Distribution  period concerned (which actual
number of days  shall  include  the first day but  exclude  the last day of such
Distribution period) divided by 360 and rounding the resultant figure upwards to
the nearest cent (half a cent being rounded  upwards).  The determination of the
Distribution  Rate and the  Distribution  Amount by or on  behalf of the  Issuer
Trust  shall (in the  absence  of  manifest  error) be final and  binding on all
parties.

         "Distribution Date" has the meaning specified in Section 4.1(a).

         "Distribution  period"  means  the  period  for  payment  on the  Trust
Securities set forth in Section 4.1(a).

         "Distribution  Rate" means, with respect to any Distribution  period, a
rate per annum  equal to the  Interest  Rate (as  defined in and  determined  in
accordance  with the  Indenture)  with respect to the Interest  Payment Date (as
defined  in the  Indenture)  that  begins on the same date as such  Distribution
period begins and ends on the same date as such Distribution period ends.

          "Distributions"   means  amounts  payable  in  respect  of  the  Trust
Securities as provided in Section 4.1.


                                                         5

<PAGE>




         "Early Termination Event" has the meaning specified in Section 9.2.

         "Event of Default" means any one of the following  events (whatever the
reason for such event and whether it shall be  voluntary  or  involuntary  or be
effected by operation of law or pursuant to any judgment, decree or order of any
court or any order,  rule or regulation of any  administrative  or  governmental
body):

                  (a)  the occurrence of a Debenture Event of Default; or

                  (b)  default  by  the  Issuer  Trust  in  the  payment  of any
         Distribution when it becomes due and payable,  and continuation of such
         default  for a period of 30 days  (subject  to the  deferral of any due
         date in the case of an Extension Period, as such term is defined in the
         Indenture); or

                  (c)  default  by  the  Issuer  Trust  in  the  payment  of any
         Redemption Price of any Trust Security when it becomes due and payable;
         or

                  (d) default in the  performance,  or breach,  in any  material
         respect,  of any  covenant or  warranty of the Issuer  Trustees in this
         Trust Agreement (other than those specified in clause (b) or (c) above)
         and  continuation  of such  default  or breach  for a period of 90 days
         after there has been given,  by  registered  or certified  mail, to the
         Issuer Trustees by the Holders of at least 25% in aggregate Liquidation
         Amount  of  the  outstanding   Capital   Securities  a  written  notice
         specifying  such default or breach and  requiring it to be remedied and
         stating that such notice is a "Notice of Default" hereunder; or

                  (e) the  occurrence of a Bankruptcy  Event with respect to the
         Property Trustee if a successor Property Trustee has not been appointed
         within 90 days thereof.

         "Expiration Date" has the meaning specified in Section 9.1.

         " Guarantee Agreement" means the Capital Securities Guarantee Agreement
executed and delivered by the Depositor and The First  National Bank of Chicago,
as guarantee trustee,  contemporaneously with the execution and delivery of this
Trust Agreement,  for the benefit of the Holders of the Capital  Securities,  as
amended from time to time.

         "Holder"  means a  Person  in  whose  name a Trust  Security  or  Trust
Securities are registered in the Securities Register; any such Person shall be a
beneficial owner within the meaning of the Delaware Business Trust Act.

         "Issuer Trust" means the Delaware  business trust known as "HSB Capital
II",  created on  December  31,  1997,  under the  Delaware  Business  Trust Act
pursuant to this Trust Agreement.



                                                         6

<PAGE>



         "Issuer  Trustees"  means,  collectively,  the  Property  Trustee,  the
Delaware Trustee and the Administrative Trustees.

         "Indenture" means the Indenture, dated as of December 31, 1997, between
the Depositor and the Debenture Trustee,  as trustee, as amended or supplemented
from time to time.

         "Investment  Company Act" means the Investment  Company Act of 1940, or
any successor statute thereto, in each case as amended from time to time.

         "Lien" means any lien, pledge, charge,  encumbrance,  mortgage, deed of
trust, adverse ownership interest, hypothecation,  assignment, security interest
or preference,  priority or other security agreement or preferential arrangement
of any kind or nature whatsoever.

         "Like  Amount"  means  (i) with  respect  to a  redemption  of  Capital
Securities,  Capital  Securities having a Liquidation  Amount (as defined below)
equal  to  that  portion  of  the   principal   amount  of   Debentures   to  be
contemporaneously  redeemed in accordance with the Debentures,  allocated to the
Common  Securities  and  to the  Capital  Securities  based  upon  the  relative
Liquidation  Amounts of such  classes and the  proceeds of which will be used to
pay the  Redemption  Price of the Capital  Securities and (ii) with respect to a
distribution of Debentures to holders of Capital Securities in connection with a
dissolution or liquidation  of the Issuer Trust,  Debentures  having a principal
amount equal to the Liquidation  Amount of the Capital  Securities of the holder
to whom such Debentures are distributed.

          "Liquidation  Amount"  means the  stated  amount  of $1,000  per Trust
Security.

         "Liquidation  Date" means the date of the  dissolution,  winding-up  or
termination of the Issuer Trust pursuant to Section 9.4.

         "Liquidation Distribution" has the meaning specified in Section 9.4(d).

         "Majority  in  Liquidation  Amount of the  Capital  Securities"  means,
except as provided by the Trust Indenture Act, Capital  Securities  representing
more  than 50% of the  aggregate  Liquidation  Amount  of all  then  Outstanding
Capital Securities.

     "Notice  of  Conversion"  means the  notice  given by a holder  of  Capital
Securities to the Conversion  Agent  directing the Conversion  Agent to exchange
such Capital  Security for Debentures and to convert such Debentures into Common
Stock on behalf of such  holder.  Such notice is  substantially  in the form set
forth in Exhibit F.

         "Officers'  Certificate"  means  a  certificate  signed  by  the  Chief
Executive  Officer,  the President or one of the Senior Vice  Presidents or Vice
Presidents,  and  by  the  Treasurer,  an  Assistant  Treasurer,  the  Corporate
Secretary or an Assistant  Secretary,  of the  Depositor,  and  delivered to the
Issuer Trustees.  Any Officers' Certificate delivered with respect to compliance
with a condition or covenant provided for in this Trust Agreement shall include:


                                                         7

<PAGE>




                  (a)  a  statement  by  each  officer   signing  the  Officers'
         Certificate  that such officer has read the  covenant or condition  and
         the definitions relating thereto;

                  (b)  a  brief  statement  of  the  nature  and  scope  of  the
         examination  or  investigation  undertaken by such officer in rendering
         the Officers' Certificate;

                  (c) a statement that such officer has made such examination or
         investigation  as, in such  officer's  opinion,  is necessary to enable
         such  officer to express an informed  opinion as to whether or not such
         covenant or condition has been complied with; and

                  (d) a statement as to whether, in the opinion of such officer,
         such condition or covenant has been complied with.

         "Opinion of  Counsel"  means a written  opinion of counsel,  who may be
counsel for or an employee of the Depositor or any Affiliate of the Depositor.

         "Outstanding", when used with respect to Trust Securities, means, as of
the  date of  determination,  all  Trust  Securities  theretofore  executed  and
delivered under this Trust Agreement, except:

                  (a) Trust  Securities  theretofore  canceled  by the  Property
         Trustee or delivered to the Property Trustee for cancellation;

                  (b) Trust  Securities for whose payment or redemption money in
         the necessary amount has been  theretofore  deposited with the Property
         Trustee or any Paying Agent;  provided  that, if such Trust  Securities
         are to be  redeemed,  notice of such  redemption  has been  duly  given
         pursuant to this Trust Agreement; and

                  (c) Trust Securities that have been paid or in exchange for or
         in lieu of which  other  Capital  Securities  have  been  executed  and
         delivered pursuant to Sections 5.4, 5.5 and 5.11;

provided,  however,  that in  determining  whether the Holders of the  requisite
Liquidation Amount of the Outstanding Capital Securities have given any request,
demand,  authorization,  direction, notice, consent or waiver hereunder, Capital
Securities  owned by the  Depositor,  any Issuer Trustee or any Affiliate of the
Depositor  or any  Issuer  Trustee  shall be  disregarded  and  deemed not to be
Outstanding,  except that (a) in determining whether any Issuer Trustee shall be
protected in relying upon any such request,  demand,  authorization,  direction,
notice,  consent or waiver,  only Capital  Securities  that such Issuer  Trustee
knows to be so owned shall be so disregarded,  and (b) the foregoing  clause (a)
shall not apply at any time when all of the Outstanding  Capital  Securities are
owned by the  Depositor,  one or more of the  Issuer  Trustees  and/or  any such
Affiliate.  Capital Securities so owned that have been pledged in good faith may
be regarded as Outstanding if the pledgee establishes to the satisfaction of the
Administrative


                                                         8

<PAGE>



Trustees the pledgee's  right so to act with respect to such Capital  Securities
and that the pledgee is not the Depositor or any Affiliate of the Depositor.

         "Paying  Agent"  means any paying agent or  co-paying  agent  appointed
pursuant to Section 5.9 and shall initially be the Property Trustee.

         "Payment  Account"  means a segregated  non-interest-bearing  corporate
trust  account  maintained  by the  Property  Trustee with the Bank in its trust
department  for the benefit of the Holders in which all amounts  paid in respect
of the Debentures will be held and from which the Property Trustee,  through the
Paying Agent, shall make payments to the Holders in accordance with Sections 4.1
and 4.2.

         "Person" means a legal person,  including any individual,  corporation,
estate, partnership,  joint venture, association,  joint stock company, company,
limited liability company, trust,  unincorporated  association, or government or
any agency or  political  subdivision  thereof,  or any other entity of whatever
nature.

         "Plan"  means an employee  benefit or other plan  subject to Title I of
the Employee Retirement Income Security Act of 1974, as amended, or Section 4975
of the Code.

         "Plan Asset Entity" means any Person whose  underlying  assets  include
"plan assets" by reason of any Plan's investment in such Person.

         "Property  Trustee"  means  the  Person  identified  as  the  "Property
Trustee" in the  preamble  to this Trust  Agreement,  solely in its  capacity as
Property Trustee of the trust heretofore created and continued hereunder and not
in its individual  capacity,  or its successor in interest in such capacity,  or
any successor property trustee appointed as herein provided.

     "PTCE"  means a U.S.  Department  of  Labor  Prohibited  Transaction  Class
Exemption.

         "Purchase Agreement" means the Purchase Agreement, dated as of December
31, 1997, among the Issuer Trust,  the Depositor and the Purchaser,  as the same
may be amended from time to time.

     "Purchaser"   means   Employers   Reinsurance   Corporation  and  ERC  Life
Reinsurance Corporation.

         "Redemption  Date"  means,  with  respect to any Trust  Security  to be
redeemed,  the date  fixed for such  redemption  by or  pursuant  to this  Trust
Agreement;  provided that each Debenture Redemption Date and the stated maturity
of the  Debentures  shall  be a  Redemption  Date  for a Like  Amount  of  Trust
Securities.

         "Redemption  Price"  means,  with  respect to any Trust  Security,  the
Liquidation  Amount  of  such  Trust  Security,   plus  accumulated  and  unpaid
Distributions to the Redemption Date, plus


                                                         9

<PAGE>



the  related  amount of the  premium,  if any,  paid by the  Depositor  upon the
concurrent redemption of a Like Amount of Debentures.

         "Relevant Trustee" has the meaning specified in Section 8.10.

         "Restricted  Capital  Securities" means the Capital  Securities and the
Capital  Securities  Certificate,  for which it is required  pursuant to Section
5.4(c) to bear a Restricted Capital Securities Legend.

         "Restricted Capital Securities Legend" means a legend  substantially in
the form of the legend  required in the form of Capital  Securities  Certificate
set forth in Exhibit C to be placed upon a Restricted Securities Certificate.

     "Restricted  Certificated  Securities" has the meaning specified in Section
5.2.

         "Restricted  Securities  Certificate"  has  the  meaning  specified  in
Section 5.4(b) and is substantially in the form attached as Exhibit D.

     "Restricted  Securities  Legend"  has  the  meaning  specified  in  Section
5.13(a).

         "Rule 144" means Rule 144 under the  Securities  Act (or any  successor
provision), as it may be amended from time to time.

         "Securities  Act" means the  Securities  Act of 1933, and any successor
statute thereto, in each case as amended from time to time.

         "Securities Act Legend" means a Restricted Securities Legend.

     "Securities  Register"  and  "Securities  Registrar"  have  the  respective
meanings specified in Section 5.4(a).

         "Successor  Capital  Securities" of any particular  Capital  Securities
Certificate  means  every  Capital  Securities  Certificate  issued  after,  and
evidencing all or a portion of the same beneficial  interest in the Issuer Trust
as that evidenced by, such particular Capital Securities  Certificate;  and, for
the purposes of this definition, any Capital Securities Certificate executed and
delivered  under  Section  5.5  in  exchange  for  or in  lieu  of a  mutilated,
destroyed,  lost or stolen  Capital  Securities  Certificate  shall be deemed to
evidence  the same  beneficial  interest in the Issuer  Trust as the  mutilated,
destroyed, lost or stolen Capital Securities Certificate.

         "Trust  Agreement"  means  this  Trust  Agreement,  as the  same may be
modified,  amended or supplemented in accordance with the applicable  provisions
hereof,  including  (i) all  Exhibits,  and (ii) for all  purposes of this Trust
Agreement and any such modification,  amendment or supplement, the provisions of
the Trust  Indenture  Act that are deemed to be a part of and govern  this Trust
Agreement and any such modification, amendment or supplement, respectively.


                                                        10

<PAGE>




         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed; provided, however, that if
the Trust  Indenture  Act of 1939 is amended after such date,  "Trust  Indenture
Act" means, to the extent  required by any such  amendment,  the Trust Indenture
Act of 1939 as so amended.

         "Trust Property" means (a) the Debentures,  (b) any cash on deposit in,
or owing to, the Payment Account,  and (c) all proceeds and rights in respect of
the  foregoing  and any other  property  and  assets  for the time being held or
deemed to be held by the Property  Trustee  pursuant to the trusts of this Trust
Agreement.

          "Trust Securities Certificate" means any Common Securities Certificate
or Capital Securities Certificate.

          "Trust Security" means any one of the Common Securities or the Capital
Securities.

          "Unrestricted  Securities  Certificate"  has the meaning  specified in
Section 5.4(c).


                                   ARTICLE II

                        ESTABLISHMENT OF THE ISSUER TRUST

         SECTION 2.1. Name.

         The trust  created  hereby  shall be known as "HSB Capital II", as such
name may be modified from time to time by the Administrative  Trustees following
written notice to the Holders of Trust Securities and the other Issuer Trustees,
in which name the Issuer Trustees (other than the Delaware  Trustee) may conduct
the  business  of the  Issuer  Trust,  make  and  execute  contracts  and  other
instruments on behalf of the Issuer Trust and sue and be sued.

         SECTION 2.2. Office of the Delaware Trustee; Principal Place of
Business.

         The  address of the  Delaware  Trustee in the State of  Delaware is 300
King  Street,  Wilmington,  DE  19801,  or such  other  address  in the State of
Delaware as the Delaware Trustee may designate by written notice to the Holders,
the  Depositor,  the  Property  Trustee  and the  Administrative  Trustees.  The
principal executive office of the Issuer Trust is c/o HSB Group, Inc., One State
Street, Hartford, Connecticut 06102, Attention: Corporate Secretary.

          SECTION 2.3.  Initial  Contribution of Trust Property;  Organizational
Expenses.

          It is the  intention  of the  parties  hereto  that the  Issuer  Trust
created  hereby  constitute a business  trust under the Delaware  Business Trust
Act, and that this document  constitutes the governing  instrument of the Trust.
The  Trustee and the  Delaware  Trustee are hereby  authorized  and  directed to
execute and file a  certificate  of trust  substantially  in the form of Annex A
with


                                                        11

<PAGE>



the  Delaware  Secretary  of State in  accordance  with  the  provisions  of the
Delaware Business Trust Act. The Depositor shall pay organizational  expenses of
the Issuer  Trust as they arise or shall,  upon  request of any Issuer  Trustee,
promptly reimburse such Issuer Trustee for any such expenses paid by such Issuer
Trustee.  The  Depositor  shall  make no claim upon the Trust  Property  for the
payment of such expenses.

         SECTION 2.4. Issuance of the Capital Securities.

         On the Closing Date, an Administrative Trustee, on behalf of the Issuer
Trust,  shall  execute in  accordance  with  Sections  5.2 and 5.3,  cause to be
authenticated,  and deliver a Capital Securities  Certificate  registered in the
name of the  Purchaser,  in an aggregate  amount of 300,000  Capital  Securities
having an aggregate  Liquidation  Amount of $300,000,000,  against receipt of an
aggregate  purchase price plus accumulated  distributions from December 31, 1997
on such Capital  Securities of  $300,000,000,  which amount such  Administrative
Trustee shall promptly deliver to the Property Trustee.

          SECTION  2.5.  Issuance  of the Common  Securities;  Subscription  and
Purchase of Debentures.

         Contemporaneously  with  the  execution  and  delivery  of  this  Trust
Agreement,  an  Administrative  Trustee,  on behalf of the Issuer  Trust,  shall
execute in  accordance  with Section 5.2 and 5.3 and the Property  Trustee shall
deliver to the Depositor a Common Securities Certificate, registered in the name
of the Depositor,  evidencing an aggregate of 9,300 Common  Securities having an
aggregate  Liquidation  Amount of  $9,300,000  against  receipt of the aggregate
purchase   price  of  such  Common   Securities  of  $9,300,000   (plus  accrued
Distributions,  if any), to the Property Trustee.  Contemporaneously  therewith,
the  Depositor  shall issue and sell to the Issuer  Trust,  and the Issuer Trust
shall  purchase from the  Depositor,  Debentures  having an aggregate  principal
amount equal to $309,300,000  registered in the name of the Property  Trustee on
behalf of the Issuer Trust and, in  satisfaction  of the purchase price for such
Debentures,  the Property Trustee,  on behalf of the Issuer Trust, shall deliver
to the Depositor the sum of $309,300,000  (plus accrued  Distributions,  if any)
(being the sum of the amounts  delivered to the Property Trustee pursuant to (i)
the second  sentence of Section 2.4, and (ii) the first sentence of this Section
2.5).

         SECTION 2.6. Declaration of Trust.

         The  exclusive  purposes  and  functions of the Issuer Trust are (a) to
issue and sell Trust  Securities  and use the proceeds from such sale to acquire
the Debentures,  (b) to make Distributions to holders, and (c) to engage in only
those activities  necessary or incidental thereto. The Depositor hereby appoints
the Issuer  Trustees as trustees  of the Issuer  Trust,  to have all the rights,
powers  and duties to the extent set forth  herein,  and the  respective  Issuer
Trustees hereby accept such  appointment.  The Property  Trustee hereby declares
that it will hold the Trust Property in trust upon and subject to the conditions
set forth  herein  for the  benefit  of the Issuer  Trust and the  Holders.  The
Administrative Trustees shall have all rights, powers and duties set


                                                        12

<PAGE>



forth herein and in accordance with  applicable law. The Delaware  Trustee shall
not be entitled to exercise any powers,  nor shall the Delaware Trustee have any
of the duties and  responsibilities,  of the Issuer  Trustees set forth  herein,
except as required by the Delaware  Business  Trust Act.  The  Delaware  Trustee
shall be one of the  trustees  of the  Issuer  Trust  for the  sole and  limited
purpose of fulfilling the requirements of Section 3807 of the Delaware  Business
Trust Act and for taking such  actions as are required to be taken by a Delaware
trustee under the Delaware Business Trust Act.

         SECTION 2.7. Authorization to Enter into Certain Transactions.

         (a) The Issuer  Trustees  shall conduct the affairs of the Issuer Trust
in accordance with the terms of this Trust Agreement. Subject to the limitations
set forth in  paragraph  (b) of this Section  2.7,  and in  accordance  with the
following  provisions (i) and (ii), the Property Trustee and the  Administrative
Trustees shall have the authority to enter into all  transactions and agreements
determined by the Property Trustee and Administrative Trustees to be appropriate
in  exercising  the  authority,  express or implied,  otherwise  granted to such
Issuer Trustees, as the case may be, under this Trust Agreement,  and to perform
all acts in furtherance thereof, including the following:

                  (i) As among the Issuer Trustees, each Administrative Trustee,
         acting  individually or jointly,  shall have the power and authority to
         act on  behalf  of the  Issuer  Trust  with  respect  to the  following
         matters:

                           (A)  the issuance and sale of the Trust Securities;

                           (B)  causing the Issuer  Trust to enter into,  and to
                  execute,  deliver and  perform on behalf of the Issuer  Trust,
                  such agreements as may be necessary or desirable in connection
                  with the purposes and function of the Issuer Trust;

                           (C) causing the Trust to assist in the qualifications
                  of this Trust  Agreement as a trust  indenture under the Trust
                  Indenture Act;

                           (D)  assisting  in  compliance  with the  duties  and
                  obligations  of the Issuer Trust under the  Securities Act and
                  applicable  state  securities  or blue sky laws and the  Trust
                  Indenture Act;

                           (E)  assisting in the sending of notices  (other than
                  notices of default) and other information  regarding the Trust
                  Securities  and the  Debentures  to the Holders in  accordance
                  with this Trust Agreement;

                           (F) consenting to the  appointment of a Paying Agent,
                  authenticating  agent and  Securities  Registrar in accordance
                  with  this  Trust  Agreement   (which  consent  shall  not  be
                  unreasonably withheld);



                                                        13

<PAGE>



                           (G) executing  the Trust  Securities on behalf of the
                  Issuer Trust in accordance with this Trust Agreement;

                           (H) executing and delivering closing certificates, if
                  any, pursuant to the Purchase  Agreement and application for a
                  taxpayer identification number for the Issuer Trust;

                           (I)  unless  otherwise  determined  by  the  Property
                  Trustee  or  Holders  of at least a  Majority  in  Liquidation
                  Amount of the Capital  Securities or as otherwise  required by
                  the Delaware  Business  Trust Act or the Trust  Indenture Act,
                  executing on behalf of the Issuer Trust  (either  acting alone
                  or  together  with  any  other  Administrative   Trustee)  any
                  documents that the  Administrative  Trustees have the power to
                  execute pursuant to this Trust Agreement; and

                           (J) taking any action  incidental to the foregoing as
                  the  Issuer  Trustees  may  from  time  to time  determine  is
                  necessary  or  advisable  to give  effect to the terms of this
                  Trust Agreement.

                  (ii) The  Property  Trustee  shall  have the  power,  duty and
         authority  to act on behalf of the  Issuer  Trust  with  respect to the
         following matters:

                           (A)  establishing the Payment Account;

                           (B)  receiving the Debentures;

                           (C)  collecting  interest,  principal  and any  other
                  payments made in respect of the  Debentures and the holding of
                  such amounts in the Payment Account;

                           (D) distributing  through any Paying Agent of amounts
                  distributable   to  the   Holders  in  respect  of  the  Trust
                  Securities;

                           (E)  exercising   all  of  the  rights,   powers  and
                  privileges of a holder of the Debentures;

                           (F) sending notices of default and other  information
                  regarding  the  Trust  Securities  and the  Debentures  to the
                  Holders in accordance with this Trust Agreement;

                           (G)  distributing  the Trust  Property in  accordance
                  with the terms of this Trust Agreement;

                           (H) to the extent  provided in this Trust  Agreement,
                  winding up the affairs of and liquidating the Issuer Trust and
                  preparing,   executing   and   filing   the   certificate   of
                  cancellation  with the  Secretary  of  State  of the  State of
                  Delaware;


                                                        14

<PAGE>




                           (I)  after an  Event of  Default  (other  than  under
                  paragraph  (b), (c), (d) or (e) of the definition of such term
                  if such Event of Default is by or with respect to the Property
                  Trustee)  taking of any action  incidental to the foregoing as
                  the  Property  Trustee  may  from  time to time  determine  is
                  necessary  or  advisable  to give  effect to the terms of this
                  Trust Agreement and to protect and conserve the Trust Property
                  for the benefit of the Holders  (without  consideration of the
                  effect of any such action on any particular Holder);

         (b) So long as this Trust Agreement remains in effect, the Issuer Trust
(or the  Issuer  Trustees  acting  on  behalf  of the  Issuer  Trust)  shall not
undertake any business,  activities or transaction  except as expressly provided
herein or contemplated  hereby.  In particular,  the Issuer Trustees,  acting in
their capacity as such,  shall not (i) acquire any  investments or engage in any
activities not authorized by this Trust Agreement,  (ii) sell, assign, transfer,
exchange,  mortgage,  pledge,  set-off or otherwise  dispose of any of the Trust
Property  or  interests  therein,  including  to  Holders,  except as  expressly
provided  herein,  (iii) take any action  that would  reasonably  be expected to
cause the Issuer Trust to become taxable as a corporation or classified as other
than a grantor trust for United States Federal  income tax purposes,  (iv) incur
any  indebtedness  for  borrowed  money or issue any other debt,  or (v) take or
consent to any action that would result in the placement of a Lien on any of the
Trust Property. The Administrative  Trustees shall defend all claims and demands
of all  Persons  at any  time  claiming  any Lien on any of the  Trust  Property
adverse to the interest of the Issuer Trust or the Holders in their  capacity as
Holders.

         (c) In  connection  with the issue and sale of the Capital  Securities,
the Depositor shall have the right and responsibility to assist the Issuer Trust
with respect to, or effect on behalf of the Issuer Trust, the following (and any
actions taken by the Depositor in furtherance of the following prior to the date
of this Trust Agreement are hereby ratified and confirmed in all respects):

                  (i) the taking of any action  necessary  or  desirable to sell
         the Capital  Securities  in a transaction  or a series of  transactions
         exempt from the registration requirements of the Securities Act;

                  (ii) the determination of the States, or other  jurisdictions,
         if any, in which to take appropriate  action to qualify or register for
         sale all or part of the Capital Securities and the determination of any
         and all such  acts,  other  than  actions  that  must be taken by or on
         behalf of the Issuer  Trust,  and the advice to the Issuer  Trustees of
         actions  they  must  take  on  behalf  of the  Issuer  Trust,  and  the
         preparation  for  execution  and filing of any documents to be executed
         and filed by the Issuer Trust or on behalf of the Issuer Trust,  as the
         Depositor  deems  necessary  or  advisable  in order to comply with the
         applicable  laws of any such States in connection  with the sale of the
         Capital Securities;

                  (iii) the  negotiation  of the terms of, and the execution and
         delivery of, the Purchase Agreement; and



                                                        15

<PAGE>



                  (iv) the taking of any other actions necessary or desirable to
         carry out any of the foregoing activities.

         (d) Notwithstanding anything herein to the contrary, the Administrative
Trustees are  authorized and directed to conduct the affairs of the Issuer Trust
and to operate the Issuer  Trust so that the Issuer  Trust will not be deemed to
be an  "investment  company"  required  to be  registered  under the  Investment
Company Act, and will not be taxable as a  corporation  or  classified  as other
than a grantor trust for United States  Federal  income tax purposes and so that
the  Debentures  will be treated as  indebtedness  of the  Depositor  for United
States  Federal income tax purposes.  In this  connection,  each  Administrative
Trustee  and the  Holder of the Common  Securities  are  authorized  to take any
action,  not inconsistent  with applicable law, the Certificate of Trust or this
Trust  Agreement,  that such  Administrative  Trustee  or  Holder of the  Common
Securities  determines  in its  discretion to be necessary or desirable for such
purposes,  as long as such  action  does not  adversely  affect in any  material
respect the interests of the Holders of the Outstanding Capital  Securities.  In
no event shall the Issuer  Trustees be liable to the Issuer Trust or the Holders
for any failure to comply with this section that results from a change in law or
regulation or in the interpretation thereof.

         SECTION 2.8. Assets of Trust.

         The assets of the Issuer Trust shall consist of the Trust Property.

         SECTION 2.9. Title to Trust Property.

         Legal title to all Trust  Property  shall be vested at all times in the
Property Trustee (in its capacity as such) and shall be held and administered by
the  Property  Trustee  in trust for the  benefit  of the  Issuer  Trust and the
Holders in accordance with this Trust Agreement.


                                   ARTICLE III

                                 PAYMENT ACCOUNT

         SECTION 3.1. Payment Account.

         (a) On or  prior  to the  Closing  Date,  the  Property  Trustee  shall
establish the Payment  Account.  The Property  Trustee and its agents shall have
exclusive  control  and sole right of  withdrawal  with  respect to the  Payment
Account for the purpose of making deposits in and  withdrawals  from the Payment
Account in accordance with this Trust  Agreement.  All monies and other property
deposited or held from time to time in the Payment  Account shall be held by the
Property Trustee in the Payment Account for the exclusive benefit of the Holders
and for distribution as herein provided, including (and subject to) any priority
of payments provided for herein.



                                                        16

<PAGE>



         (b) The Property Trustee shall deposit in the Payment Account, promptly
upon  receipt,  all  payments  of  principal  of or  interest  on, and any other
payments  or  proceeds  with  respect to, the  Debentures.  Amounts  held in the
Payment  Account  shall  not  be  invested  by  the  Property   Trustee  pending
distribution thereof.


                                   ARTICLE IV

                      DISTRIBUTIONS; REDEMPTION; CONVERSION

         SECTION 4.1. Distributions.

         (a) The Trust Securities  represent undivided  beneficial  interests in
the Trust Property,  and distributions  ("Distributions"),  comprised of (i) the
Distribution  Amount,  (ii) any Additional  Sums and (iii) and other payments in
respect of the  Debentures,  will be made on the Trust  Securities  on the dates
that payments of interest are made on the Debentures. Accordingly:

                  (i) Distributions on the Trust Securities shall be cumulative,
         and shall accumulate whether or not there are funds of the Issuer Trust
         available  for  the  payment  of  Distributions.   Distributions  shall
         accumulate from December 31, 1997, and, except in the event (and to the
         extent) that the Depositor  exercises its right to defer the payment of
         interest on the Debentures pursuant to the Indenture,  shall be payable
         semi-annually  in  arrears  on  January  15 and  July 15 of each  year,
         commencing  January 15, 1998.  If any date on which a  Distribution  is
         otherwise  payable on the Trust  Securities is not a Business Day, then
         the payment of such  Distribution  shall be made on the next succeeding
         day that is a Business Day (and  without any interest or other  payment
         in respect of any such  delay),  except that,  if such next  succeeding
         Business Day falls within the next calendar year,  such payment will be
         made on the immediately  preceding Business Day, in each case, with the
         same force and effect as if made on the date on which such  payment was
         originally  payable  (each date on which  distributions  are payable in
         accordance with this Section 4.1(a)(i), a "Distribution Date").

                  (ii) The Trust  Securities  shall be entitled to Distributions
         (before  giving  effect  to  any   Additional   Sums)  payable  at  the
         Distribution  Rate  multiplied by the  Liquidation  Amount of the Trust
         Securities.  The amount of Distributions payable for any period will be
         computed  on the basis of the actual  number of days in the  applicable
         Distribution  period  (which  actual  number of days shall  include the
         first day but exclude the last day of such Distribution period) divided
         by 360. The period  beginning on, and  including,  the date of original
         issuance,  and ending on, but excluding,  the first  Distribution Date,
         and each successive period beginning on, and including,  a Distribution
         Date, and ending on, but excluding,  the next  succeeding  Distribution
         Date  is  herein  called  a  "Distribution   period").  The  amount  of
         Distributions  payable for any period shall also include any Additional
         Sums, if any, so payable in respect of such period.



                                                        17

<PAGE>



                  (iii)  Distributions  on the Trust Securities shall be made by
         the Property  Trustee from the Payment  Account and shall be payable on
         each  Distribution  Date only to the extent  that the Issuer  Trust has
         funds then on hand and available in the Payment Account for the payment
         of such Distributions.

         (b)   Distributions   on  the  Trust   Securities  with  respect  to  a
Distribution  Date shall be payable to the Holders thereof as they appear on the
Securities  Register  for the Trust  Securities  at the close of business on the
January 1 or July 1 (whether or not a Business Day) next  preceding the relevant
Distribution Date.

         (c) (i) The  Issuer  Trust  shall  cause  the  Distribution  Rate,  the
Distribution  Amount in respect of each Trust Security and the Distribution Date
for each Distribution period to be notified to the Property Trustee, each Paying
Agent  appointed  by the Issuer Trust and any  securities  exchange or automated
quotation  system on which the Trust Securities are listed or quoted and also to
be  notified  to the  Holders of the Trust  Securities  in  accordance  with the
provisions  of  Section  10.8,  in each  case as soon as  practicable  after the
determination  thereof but in no event later than the second  Business Day after
the Determination Date in respect of such Distribution period.

                  (ii)  All  calculations  of  the  Distribution  Rate  and  the
Distribution Amount by or on behalf of the Issuer Trust shall (in the absence of
manifest  error) be final and  binding  on all  parties,  and all  certificates,
communications, opinions, determinations, calculations, quotations and decisions
given,  expressed,  made or obtained for the purposes of the  provisions of this
Section 4.1(c) or the provisions of the Indenture relating to the calculation of
the  Interest  Rate (as  defined  in the  Indenture),  shall (in the  absence of
willful  default,  bad faith or manifest  error) be binding on the Issuer Trust,
the  Depositor,  the  Debenture  Trustee  and all of the  Holders  of the  Trust
Securities, and no liability shall (in the absence of willful default, bad faith
or  manifest  error)  attach to the  Debenture  Trustee in  connection  with the
exercise or non-exercise by it of its powers, duties and discretions.

         SECTION 4.2. Redemption.

         (a) (i) On each Debenture Redemption Date and on the stated maturity of
the  Debentures,  the Issuer  Trust will be  required to redeem a Like Amount of
Trust Securities at the Redemption Price.

                  (ii) If at any time  following a  Conversion  Date,  less than
five percent (5%) in principal amount of the Debentures originally issued by the
Depositor remain outstanding,  such Debentures are redeemable,  at the option of
the  Depositor,  in whole but not in part,  at a  Redemption  Price equal to the
aggregate principal amount thereof, and all accrued and unpaid interest; in such
event,  the  proceeds  from such  redemption  shall be  applied  to  redeem  the
Outstanding Trust Securities.



                                                        18

<PAGE>



                  (iii) In addition, the Issuer Trust will be required to redeem
at the Redemption  Price stated in Section 11.7 of the Indenture,  the amount of
Trust Securities that the Purchaser proposes to dispose or transfer,  if subject
to Section  5.4(b)(2)(E),  the Depositor vetoes the Purchaser's choice of Person
to whom the Purchaser desires to dispose or transfer such Securities.

                  (iv) Pursuant to Section 11.8 of the Indenture,  the Depositor
may be required to redeem all Outstanding Trust Securities at a Redemption Price
stated in Section 11.8 of the Indenture.

         (b) Notice of redemption shall be given by the Property Trustee and the
Conversion Agent by first-class mail,  postage prepaid,  mailed not less than 30
nor more  than 60 days  prior to the  Redemption  Date to each  Holder  of Trust
Securities to be redeemed,  at such Holder's  address  appearing in the Security
Register. All notices of redemption shall state:

                  (i)  the Redemption Date;

                  (ii) the Redemption Price or if the Redemption Price cannot be
         calculated  prior to the time the notice is  required  to be sent,  the
         estimate of the Redemption  Price provided  pursuant to (and as defined
         in) the Indenture  together with a statement that it is an estimate and
         that the  actual  Redemption  Price  will be  calculated  on the  third
         Business  Day prior to the  Redemption  Date (and,  if an  estimate  is
         provided,  that a further notice shall be sent of the actual Redemption
         Price on the date on which such Redemption Price is calculated);

                  (iii)  the  CUSIP  number  or  CUSIP  numbers  of the  Capital
Securities affected;

                  (iv) if less than all the Outstanding  Trust Securities are to
         be redeemed, the identification and the aggregate Liquidation Amount of
         the particular Trust Securities to be redeemed;

                  (v) If the  Capital  Securities  are  convertible,  (A) that a
         Holder of  Capital  Securities  who  desires to  convert  such  Capital
         Securities  called for  redemption  must satisfy the  requirements  for
         conversion contained in Section 4.3 below and (B) the Conversion Price;

                  (vi) that on the  Redemption  Date the  Redemption  Price will
         become due and payable upon each such Trust Security to be redeemed and
         that  Distributions  thereon will cease to accumulate on and after such
         date, except as provided in Section 4.2(d) below; and

                  (vii) the place or places where the Trust Securities are to be
         surrendered for the payment of the Redemption Price.



                                                        19

<PAGE>



         The Issuer  Trust in issuing  the Trust  Securities  may use "CUSIP" or
"private placement" numbers (if then generally in use), and, if so, the Property
Trustee shall indicate the "CUSIP" or "private  placement"  numbers of the Trust
Securities in notices of redemption  and related  materials as a convenience  to
Holders;  provided that any such notice may state that no representation is made
as to the correctness of such numbers either as printed on the Trust  Securities
or as contained in any notice of redemption and related materials.

         (c) The Trust  Securities  redeemed  on each  Redemption  Date shall be
redeemed at the  Redemption  Price with the  proceeds  from the  contemporaneous
redemption of Debentures.  Redemptions of the Trust Securities shall be made and
the Redemption Price shall be payable on each Redemption Date only to the extent
that the  Issuer  Trust  has funds  then on hand and  available  in the  Payment
Account for the payment of such Redemption Price.

         (d) If the Property  Trustee gives a notice of redemption in respect of
any  Capital  Securities,  then,  by 12:00  noon,  New York  City  time,  on the
Redemption  Date,  subject to Section  4.2(c),  the Property  Trustee will, with
respect to the Capital Securities,  irrevocably deposit with the Paying Agent or
Paying Agents,  to the extent  available  therefor,  funds sufficient to pay the
applicable  Redemption  Price and will give the  Paying  Agent or Paying  Agents
irrevocable  instructions  and  authority  to pay the  Redemption  Price  to the
Holders of the Capital  Securities  upon  surrender of their Capital  Securities
Certificates.  Notwithstanding the foregoing,  Distributions payable on or prior
to the Redemption Date for any Trust  Securities  called for redemption shall be
payable to the Holders of such Trust Securities as they appear on the Securities
Register on the relevant  record dates for the related  Distribution  Dates.  If
notice of redemption shall have been given and funds deposited as required, then
upon the date of such deposit, all rights of Holders holding Trust Securities so
called for  redemption  will cease,  except the right of such Holders to receive
the  Redemption  Price and any  Distribution  payable  in  respect  of the Trust
Securities on or prior to the Redemption  Date, but without  interest,  and such
Securities will cease to be Outstanding. In the event that any date on which any
Redemption  Price  is  payable  is  not a  Business  Day,  then  payment  of the
Redemption  Price payable on such date will be made on the next  succeeding  day
that is a Business Day (without any interest or other  payment in respect of any
such delay),  except that, if such Business Day falls in the next calendar year,
such payment will be made on the  immediately  preceding  Business  Day, in each
case,  with the same force and effect as if made on such date. In the event that
payment of the Redemption  Price in respect of any Trust  Securities  called for
redemption is  improperly  withheld or refused and not paid either by the Issuer
Trust or by the Depositor pursuant to the Guarantee Agreement,  Distributions on
such Trust Securities will continue to accumulate,  as set forth in Section 4.1,
from the  Redemption  Date  originally  established by the Issuer Trust for such
Trust  Securities to the date such  Redemption  Price is actually paid, in which
case the actual  payment date will be the date fixed for redemption for purposes
of calculating the Redemption Price.

         (e) Subject to Section 4.3(a),  if less than all the Outstanding  Trust
Securities  are  to  be  redeemed  on a  Redemption  Date,  then  the  aggregate
Liquidation  Amount of Trust  Securities  to be redeemed  shall be allocated pro
rata to the Common Securities and the Capital Securities based upon the relative
Liquidation Amounts of such classes. The particular Capital Securities


                                                        20

<PAGE>



to be redeemed shall be selected on a pro rata basis based upon their respective
Liquidation  Amounts not more than 60 days prior to the  Redemption  Date by the
Property Trustee from the Outstanding  Capital  Securities not previously called
for redemption, provided that, after giving effect to such redemption, no Holder
shall hold Capital Securities with an aggregate  Liquidation Amount of less than
$1,000.  The Property Trustee shall promptly notify the Securities  Registrar in
writing of the Capital  Securities  selected for redemption  and, in the case of
any Capital Securities selected for partial  redemption,  the Liquidation Amount
thereof to be  redeemed.  For all purposes of this Trust  Agreement,  unless the
context otherwise requires, all provisions relating to the redemption of Capital
Securities shall relate, in the case of any Capital Securities redeemed or to be
redeemed  only in part, to the portion of the  aggregate  Liquidation  Amount of
Capital Securities that has been or is to be redeemed.

         SECTION 4.3.  Conversion.  The Holders of Trust Securities,  subject to
the  limitations  set forth in this  Section,  shall  have the  right,  at their
option, to cause the Conversion Agent to convert Trust Securities,  on behalf of
the  converting  Holders,  into shares of Common  Stock in the manner  described
herein on and subject to the following terms and conditions:

                  (i) Subject to the receipt by the  Purchaser and the Depositor
         of the  appropriate  Regulatory  Approvals  (as defined  below) and the
         termination   of   the   applicable    waiting    periods   under   the
         Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as amended, and
         the  related  regulations  and  published  interpretations,  the  Trust
         Securities will be convertible into fully paid and nonassessable shares
         of Common Stock  pursuant to the Holder's  direction to the  Conversion
         Agent  to  exchange  such  Trust   Securities  for  a  portion  of  the
         Debentures,  and  immediately  convert such amount of  Debentures  into
         fully paid and nonassessable  shares of Common Stock at an initial rate
         of 11.7647  shares of Common  Stock for each Trust  Security  (which is
         equivalent  to a  conversion  price of $85 per share of Common  Stock),
         subject  to  certain  adjustments  set  forth in the  Indenture  (as so
         adjusted,  "Conversion Price").  "Regulatory  Approvals" shall mean all
         necessary  insurance  regulatory and other filings and/or approvals and
         any licenses and permits, authorizations, consents, orders or approvals
         of, or  registrations,  declarations  or  filings  with all  regulatory
         bodies as may be required to be obtained or made with respect to either
         party in order to permit the  parties to  consummate  the  transactions
         contemplated  hereby  which  are to be  consummated  on or prior to the
         Closing Date.

                  (ii) In order to convert Trust  Securities  into Common Stock,
         the  Holder of such Trust  Securities  shall  submit to the  Conversion
         Agent an irrevocable  Notice of Conversion,  as set forth in Exhibit F,
         to convert Trust  Securities on behalf of such Holder,  together,  with
         the  certificates  representing  the Trust  Securities.  The  Notice of
         Conversion  shall (i) set forth the  number of Trust  Securities  to be
         converted and the name or names, if other than the Holder, in which the
         shares of Common Stock should be issued and (ii) direct the  Conversion
         Agent (a) to  exchange  such  Trust  Securities  for a  portion  of the
         Debentures  held  by the  Property  Trustee  (at the  rate of  exchange
         specified in the preceding  paragraph) and (b) to  immediately  convert
         such  Debentures,  on behalf of such Holder,  into Common Stock (at the
         conversion rate specified in the preceding


                                                        21

<PAGE>



         paragraph).  The Conversion  Agent shall notify the Property Trustee of
         the Holder's election to exchange Trust Securities for a portion of the
         Debentures held by the Property Trustee and the Property Trustee shall,
         upon  receipt  of such  notice,  deliver  to the  Conversion  Agent the
         appropriate  principal  amount of Debentures for exchange in accordance
         with this Section.  The  Conversion  Agent shall  thereupon  notify the
         Depositor of the  Holder's  election to convert  such  Debentures  into
         shares of Common  Stock.  Holders of Trust  Securities  at the close of
         business  on a  Distribution  payment  record  date will be entitled to
         receive  the  Distribution   paid  on  such  Trust  Securities  on  the
         corresponding  Distribution Date notwithstanding the conversion of such
         Trust  Securities   following  such  record  date  but  prior  to  such
         Distribution Date. Except as provided above,  neither the Trust nor the
         Depositor will make, or be required to make, any payment,  allowance or
         adjustment upon any conversion on account of any accumulated and unpaid
         Distributions whether or not in arrears accrued on the Trust Securities
         surrendered for conversion, or on account of any accumulated and unpaid
         dividends on the shares of Common  Stock  issued upon such  conversion.
         Trust  Securities  shall be deemed to have been  converted  immediately
         prior to the  close  of  business  on the day on  which an  irrevocable
         Notice of Conversion  relating to such Trust  Securities is received by
         the Conversion  Agent in accordance  with the foregoing  provision (the
         "Conversion  Date").  The Person or  Persons  entitled  to receive  the
         Common  Stock  issuable  upon  conversion  of the  Debentures  shall be
         treated for all purposes as the record holder or holders of such Common
         Stock on the date of conversion. As promptly as practicable on or after
         the  Conversion  Date,  the  Depositor  shall  issue and deliver at the
         office of the Conversion  Agent a certificate or  certificates  for the
         number of full shares of Common Stock  issuable  upon such  conversion,
         together with the cash payment,  if any, in lieu of any fraction of any
         share to the Person or Persons  entitled  to receive  the same,  unless
         otherwise  directed by the Holder in the notice of  conversion  and the
         Conversion  Agent shall  distribute such certificate or certificates to
         such Person or Persons.

                  (iii)  Each  Holder  of a  Trust  Security  by its  acceptance
         thereof initially appoints the Property Trustee,  not in its individual
         capacity but solely as conversion  agent (the  "Conversion  Agent") for
         the  purpose  of  effecting  the  conversion  of  Trust  Securities  in
         accordance   with  this  Section.   In  effecting  the  conversion  and
         transactions  described in this Section,  the Conversion Agent shall be
         acting as agent of the  Holders  of Trust  Securities  directing  it to
         effect such  conversion  transactions.  The Conversion  Agent is hereby
         authorized  (i) to  exchange  Trust  Securities  from  time to time for
         Debentures  held by the Trust in connection with the conversion of such
         Trust  Securities in  accordance  with this Section and (ii) to convert
         all or a portion of the  Debentures  into Common Stock and thereupon to
         deliver such shares of Common Stock in accordance  with the  provisions
         of  this  Section  and to  deliver  to the  Property  Trustee  any  new
         Debenture or Debentures for any resulting  unconverted principal amount
         delivered to the Conversion Agent by the Debenture Trustee.

                  (iv) No fractional  shares of Common Stock will be issued as a
         result of conversion,  but, in lieu thereof,  such fractional  interest
         will be paid in cash by the


                                                        22

<PAGE>



         Depositor  to the  Conversion  Agent in an amount  equal to the Current
         Market  Price of the  fractional  share of the  Common  Stock,  and the
         Conversion  Agent  will in turn  make  such  payment  to the  Holder or
         Holders of Trust Securities so converted.

                  (v) Nothing in this Section 4.3 shall limit the requirement of
         the  Trust  to  withhold  taxes  pursuant  to the  terms  of the  Trust
         Securities or as set forth in this  Agreement or otherwise  required of
         the Property Trustee or the Trust to pay any amounts on account of such
         withholdings.

         SECTION 4.4. Subordination of Common Securities.

         (a)  Payment  of  Distributions  on, the  Redemption  Price of, and the
Liquidation  Distribution  in respect of the Trust  Securities,  as  applicable,
shall be made,  subject to Section 4.2(e),  pro rata among the Common Securities
and  the  Capital  Securities  based  on the  Liquidation  Amount  of the  Trust
Securities; provided, however, that if on any Distribution Date, Redemption Date
or Liquidation  Date any Event of Default  resulting  from a Debenture  Event of
Default  specified  in  Section  5.1(1) or 5.1(2) of the  Indenture  shall  have
occurred and be continuing,  no payment of any Distribution on, Redemption Price
of, or Liquidation  Distribution in respect of any Common Security, and no other
payment on account of the redemption, liquidation or other acquisition of Common
Securities,  shall be made unless payment in full in cash of all accumulated and
unpaid  Distributions on all Outstanding Capital Securities for all Distribution
periods  terminating  on or  prior  thereto,  or in the case of  payment  of the
Redemption  Price the full amount of such  Redemption  Price on all  Outstanding
Capital Securities then called for redemption,  or in the case of payment of the
Liquidation Distribution the full amount of such Liquidation Distribution on all
Outstanding  Capital  Securities,  shall have been made or provided for, and all
funds  immediately  available to the Property  Trustee shall first be applied to
the payment in full in cash of all  Distributions on, the Redemption Price of or
the Liquidation  Distribution in respect of the Capital  Securities then due and
payable.

         (b) In the case of the  occurrence  of any Event of  Default  resulting
from any Debenture Event of Default,  the Holder of the Common  Securities shall
have no right to act with respect to any such Event of Default  under this Trust
Agreement  until the effects of all such Events of Default  with  respect to the
Capital Securities have been cured,  waived or otherwise  eliminated.  Until all
such Events of Default  under this Trust  Agreement  with respect to the Capital
Securities  have been so cured,  waived or  otherwise  eliminated,  the Property
Trustee shall act solely on behalf of the Holders of the Capital  Securities and
not on behalf of the Holder of the Common  Securities,  and only the  Holders of
the Capital Securities will have the right to direct the Property Trustee to act
on their behalf.

         SECTION 4.5. Payment Procedures.

         Payments  of  Distributions  or of the  Redemption  Price,  Liquidation
Amount or any other amounts in respect of the Capital  Securities  shall be made
by check  mailed to the address of the Person  entitled  thereto as such address
shall appear on the Securities Register. Payments in


                                                        23

<PAGE>



respect  of the  Common  Securities  shall  be made in such  manner  as shall be
mutually  agreed  between the Property  Trustee and the Holder of all the Common
Securities.

         SECTION 4.6. Tax Returns and Reports.

         The Administrative Trustees shall prepare (or cause to be prepared), at
the Depositor's expense, and file all United States Federal, state and local tax
and information returns and reports required to be filed by or in respect of the
Issuer Trust. In this regard, the Administrative  Trustees shall (a) prepare and
file (or cause to be prepared  and filed) all  Internal  Revenue  Service  forms
required to be filed in respect of the Issuer  Trust in each taxable year of the
Issuer  Trust,  and (b)  prepare  and  furnish  (or  cause  to be  prepared  and
furnished)  to each Holder all Internal  Revenue  Service  forms  required to be
provided by the Issuer  Trust.  The  Administrative  Trustees  shall provide the
Depositor  and the Property  Trustee with a copy of all such returns and reports
promptly after such filing or furnishing.  The Issuer Trustees shall comply with
United  States  Federal   withholding  and  backup   withholding  tax  laws  and
information reporting requirements with respect to any payments to Holders under
the Trust Securities.

         SECTION 4.7. Payment of Taxes, Duties, Etc. of the Issuer Trust.

         Upon receipt  under the  Indenture  of  Additional  Sums,  the Property
Trustee  shall  promptly  pay any  taxes,  duties  or  governmental  charges  of
whatsoever nature (other than withholding  taxes) imposed on the Issuer Trust by
the  United  States or any other  taxing  authority  with  respect to which such
Additional Sums were paid.

         SECTION 4.8. Payments under Indenture or Pursuant to Direct Actions.

         Any amount payable hereunder to any Holder of Capital  Securities shall
be reduced by the amount of any  corresponding  payment such Holder has directly
received  pursuant to Section 5.9 of the Indenture or Section 5.12 of this Trust
Agreement.


                                    ARTICLE V

                          TRUST SECURITIES CERTIFICATES

         SECTION 5.1. Initial Ownership.

         Upon the  creation  of the  Issuer  Trust and the  contribution  by the
Depositor  pursuant  to  Section  2.3  and  until  the  issuance  of  the  Trust
Securities,  and at any time during which no Trust  Securities are  Outstanding,
the Depositor shall be the sole beneficial owner of the Issuer Trust.



                                                        24

<PAGE>



         SECTION 5.2. The Trust Securities Certificates.

          Unless  otherwise  set  forth  herein,  a  single  Capital  Securities
Certificate representing the Capital Securities shall be issued to the Purchaser
in the form of a definitive  Capital  Securities  Certificate.  A single  Common
Security  Certificate  representing the Common Securities shall be issued to the
Depositor  in the  form  of a  definitive  Common  Securities  Certificate.  The
consideration  received by the Trust for the  issuance  of the Trust  Securities
shall  constitute  a  contribution  to the  capital  of the  Trust and shall not
constitute a loan to the Trust.

         The Purchaser shall receive a Capital  Securities  Certificate  bearing
the  Restricted  Securities  Legend  ("Restricted   Certificated   Securities").
Restricted  Certificated  Securities  shall  include the  Restricted  Securities
Legend unless removed in accordance with Section 5.4(c) hereof.

         The Trust  Securities  Certificates  shall be executed on behalf of the
Trust by manual or facsimile  signature of at least one  Administrative  Trustee
and authenticated by the Property Trustee. Trust Securities Certificates bearing
the manual or facsimile  signatures  of  individuals  who were, at the time when
such  signatures  shall have been  affixed,  authorized to sign on behalf of the
Issuer Trust,  shall be validly issued and entitled to the benefit of this Trust
Agreement,  notwithstanding  that such  individuals  or any of them  shall  have
ceased  to be so  authorized  prior to the  delivery  of such  Trust  Securities
Certificates  or did not hold such offices at the date of delivery of such Trust
Securities  Certificates.  A transferee of a Trust Securities  Certificate shall
become a Securityholder,  and shall be entitled to the rights and subject to the
obligations of a Securityholder  hereunder,  upon due registration of such Trust
Securities Certificate in such transferee's name pursuant to Section 5.4.

         SECTION 5.3. Execution and Delivery of Trust Securities Certificates.

         On the Closing  Date,  the  Administrative  Trustees  shall cause Trust
Securities  Certificates,  in an  aggregate  Liquidation  Amount as  provided in
Sections 2.4 and 2.5, to be executed on behalf of the Issuer Trust and delivered
to or upon the written order of the Depositor, executed by an authorized officer
thereof,  without  further  corporate  action by the  Depositor,  in  authorized
denominations.

     SECTION  5.4.  Registration,   Transfer  and  Exchange  Generally;  Certain
Transfers and Exchanges; Securities Act Legends.

         (a) Registration,  Transfer and Exchange Generally.  The Administrative
Trustees  shall  keep or cause to be kept,  at the  office or agency  maintained
pursuant to Section 5.8, a register or registers (the "Securities  Register") in
which the registrar and transfer agent with respect to the Trust Securities (the
"Securities  Registrar"),  subject  to  such  reasonable  regulations  as it may
prescribe,  shall  provide  for  the  registration  of  the  Capital  Securities
Certificate and (subject to Section 5.10) the Common Securities  Certificate and
of transfers  and  exchanges  of the Capital  Securities  Certificate  as herein
provided. The Property Trustee is hereby appointed Securities


                                                        25

<PAGE>



Registrar for the purpose of registering the Capital Securities  Certificate and
(subject to Section 5.10) the Common  Securities  Certificate  and transfers and
exchanges thereof as provided herein.

         Upon surrender for  registration of transfer of the Capital  Securities
Certificate  at the office or agency  maintained  pursuant to Section  5.8,  the
Administrative  Trustees  or any one of them shall  execute  and  deliver to the
Property  Trustee,  and the Property  Trustee shall deliver,  in the name of the
designated  transferee  or  transferees,  one or  more  new  Capital  Securities
Certificates in authorized  denominations of a like aggregate Liquidation Amount
and bearing such restrictive legends as may be required by this Trust Agreement,
dated the date of execution by such Administrative Trustee or Trustees.

         At the option of the Holder, the Capital Securities  Certificate may be
exchanged for other Capital  Securities  Certificates  of the same series of any
authorized  denominations,  of like  tenor  and  aggregate  Liquidation  Amount,
bearing such restrictive  legends as may be required by this Trust Agreement and
bearing  a number  not  contemporaneously  Outstanding,  upon  surrender  of the
Capital  Securities  Certificate  to be  exchanged  at such  office  or  agency.
Whenever any Capital Securities  Certificate is so surrendered for exchange, the
Administrative  Trustees  or any one of them shall  execute  and  deliver to the
Property Trustee, and the Property Trustee shall deliver, the Capital Securities
Certificates that the Holder making the exchange is entitled to receive.

         All Capital  Securities issued upon any transfer or exchange of Capital
Securities  shall  evidence the same interest in the assets of the Issuer Trust,
and be entitled to the same benefits under this Trust Agreement,  as the Capital
Securities surrendered upon such transfer or exchange.

         The Securities Registrar shall not be required,  (i) to issue, register
the transfer of or exchange any Capital  Security  during a period  beginning at
the opening of business 15 days before the day of selection  for  redemption  of
such  Capital  Securities  pursuant  to  Article  IV and  ending at the close of
business on the day of mailing of the notice of redemption,  or (ii) to register
the transfer of or exchange any Capital  Security so selected for  redemption in
whole  or in  part,  except,  in the case of any  such  Capital  Security  to be
redeemed in part, any portion thereof not to be redeemed.

         The  Capital  Securities   Certificate  presented  or  surrendered  for
registration  of transfer or exchange shall be duly endorsed,  or be accompanied
by a written  instrument of transfer in form  satisfactory to an  Administrative
Trustee  and the  Securities  Registrar  duly  executed  by the  Holder  or such
Holder's attorney duly authorized in writing. The Capital Securities Certificate
surrendered  for  registration  of transfer or  exchange  shall be canceled  and
subsequently  disposed  of by  the  Property  Trustee  in  accordance  with  its
customary practice.

         No service  charge  shall be made for any  registration  of transfer or
exchange of the Capital Securities Certificate, but the Issuer Trust may require
payment of a sum sufficient to


                                                        26

<PAGE>



cover any tax or governmental  charge that may be imposed in connection with any
transfer or exchange of the Capital Securities Certificate.

         (b)   Registration,   Transfer,   and  Exchange.   A  Security  may  be
transferred,  in whole or in part, to a Person who takes delivery in the form of
another Security,  provided that the following  provisions are met. When Capital
Securities  are presented to the  Securities  Registrar  with a request:  (1) to
register the transfer of such Securities; or (2) to exchange such Securities for
Capital Securities in an equal aggregate  principal amount of Capital Securities
of other authorized  denominations,  the Securities Registrar shall register the
transfer or make the exchange as requested if its  reasonable  requirements  for
such  transaction  are  met;  provided,  however,  that the  Capital  Securities
surrendered for transfer or exchange:

                           (A)  shall  be  duly  endorsed  or  accompanied  by a
                  written instrument of transfer in form reasonably satisfactory
                  to the Property  Trustee and the  Securities  Registrar,  duly
                  executed by the Purchaser or his attorney  duly  authorized in
                  writing,  delivered to the Depositor at least 30 Business Days
                  before such intended  transfer,  and the  Depositor  shall not
                  have  delivered a written notice of objection to the Purchaser
                  within 5 Business Days prior to the intended  transfer,  which
                  notice of  objection  shall  state  whether the  Depositor  is
                  objecting pursuant to subsection (D) or (E) below;

                           (B) in the case of Restricted  Securities,  are being
                  transferred  pursuant  to an  applicable  exemption  from  the
                  Securities Act and are accompanied by the following additional
                  information and documents:  a Restricted Security Certificate,
                  satisfactory to the Property  Trustee and duly executed by the
                  transferor  Holder or his attorney duly authorized in writing,
                  in the form  attached  hereto as  Exhibit  D (the  "Restricted
                  Securities   Certificate")  and  an  opinion  of  counsel  (as
                  described in subsection (c)(v) below) reasonably acceptable to
                  the  Depositor and to the  Securities  Registrar to the effect
                  that such transfer is in compliance  with the Securities  Act,
                  in which case the transferee Holder shall take delivery in the
                  form of a Restricted Security, subject to Section 5.4(c);

                           (C) shall be accompanied by a written  statement that
                  such transferee agrees to be bound by the terms and provisions
                  of this Trust Agreement and the Purchase Agreement;

                           (D) shall be subject to the right of the Depositor to
                  veto  the  Purchaser's  choice  of such  Person  to  whom  the
                  proposed  transfer or disposition is to occur by giving notice
                  of such  objection to the Purchaser as described in (A) above;
                  and

                           (E)  shall,  pursuant  to  Section  4.2(a)(iii),   be
                  subject  to the right of the  Depositor  to cause  the  Issuer
                  Trust  to send out a  notice  of  redemption  to  redeem  at a
                  Redemption  Price  specified in Section 11.7 of the Indenture,
                  the Security or


                                                        27

<PAGE>



                  Securities  surrendered  for  transfer  or  exchange by giving
                  notice of such  objection to the Purchaser as described in (A)
                  above.

         (c)  Securities  Act Legends.  Except as set forth below,  Certificated
Capital  Securities,  their  respective  Successor  Securities and a new Capital
Security which is issued in exchange for another Capital Security or any portion
thereof,  upon transfer or otherwise,  shall bear a Restricted Securities Legend
as set forth in Section 5.11:

                  (i) at any time  after the  Capital  Securities  may be freely
         transferred  without  registration  under the Securities Act or without
         being subject to transfer  restrictions pursuant to the Securities Act,
         a new Capital  Security which does not bear a Securities Act Legend may
         be  issued in  exchange  for or in lieu of a  Capital  Security  or any
         portion thereof which bears such a legend if the Depositor has received
         from the Purchaser an opinion of counsel as described in subsection (v)
         below  and  if  the  Property  Trustee  has  received  an  Unrestricted
         Securities   Certificate,   in  the  form  of   Exhibit  E  hereto  (an
         "Unrestricted  Securities  Certificate"),  satisfactory to the Property
         Trustee  and duly  executed  by the  Holder  of such  legended  Capital
         Security or his attorney  duly  authorized  in writing,  and after such
         date and  receipt  of such  certificate,  the  Property  Trustee  shall
         authenticate and deliver such a new Capital Security in exchange for or
         in lieu of such other Capital Security as provided in this Article 5;

                  (ii) a new Capital  Security  which does not bear a Securities
         Act  Legend  may be  issued  in  exchange  for or in lieu of a  Capital
         Security or any portion  thereof which also does not bear such a legend
         if,  after the  receipt  by the  Depositor  of an opinion of counsel as
         described in subsection (v) below, in the Depositor's judgment, placing
         such a legend upon such new Capital Security is not necessary to ensure
         compliance  with the  registration  requirements of the Securities Act,
         and the Property  Trustee,  at the  direction of the  Depositor,  shall
         authenticate  and deliver  such a new  Capital  Security as provided in
         this Article 5; and

                  (iii)  the  Purchaser  agrees  that it  will  not  effect  the
         proposed  transfer or  disposition  of the Capital  Security until such
         Purchaser   has  provided  to  the  Depositor  an  opinion  of  counsel
         satisfactory  in form and substance to the Depositor that such proposed
         disposition  or  transfer  is  exempt  from   registration   under  the
         Securities Act and any applicable  state securities laws. The Depositor
         shall use its best  efforts to comply with any state  securities  laws,
         but shall in no event be required, in connection therewith,  to qualify
         to do business in any state where it is not then  qualified  or to take
         any action that would  subject it to tax or to the  general  service of
         process in any state where it is not then subject.

         (d) Any  purchaser or Holder of any Capital  Securities or any interest
therein will be deemed to have  represented by its purchase and holding  thereof
that it either  (i) is not a Plan or a Plan Asset  Entity and is not  purchasing
such Capital  Securities on behalf of or with "plan assets" of any Plan, or (ii)
is eligible for the exemptive relief available under PTCE 96-23, 95-


                                                        28

<PAGE>



60, 91-38,  90-1 or 84-14 or another  applicable  exemption with respect to such
purchase or holding. The Securities Registrar may, and if the Depositor shall so
request,  the Securities  Registrar  shall,  before  registering for transfer or
exchange any Capital Securities Certificates as provided in Sections 5.2, 5.4 or
5.5 of this Trust Agreement, (A) require the purchaser or Holder of such Capital
Securities  Certificates  to confirm  that it either  (x) is not a Plan,  a Plan
Asset Entity or a Person  investing "plan assets" of any Plan or (y) is eligible
for the exemptive  relief  available  under PTCE 96-23,  95-60,  91-38,  90-1 or
84-14,  and (B) if such purchaser or Holder does not provide such  confirmation,
require an Opinion of Counsel or other evidence satisfactory to the Depositor of
the  availability  to such purchaser or Holder of another  applicable  exemption
with respect to such purchase or holding.

     SECTION  5.5.  Mutilated,   Destroyed,  Lost  or  Stolen  Trust  Securities
Certificates.

         If (a) any mutilated Trust Securities  Certificate shall be surrendered
to the  Securities  Registrar,  or if the  Securities  Registrar  shall  receive
evidence  to its  satisfaction  of the  destruction,  loss or theft of any Trust
Securities  Certificate,  and (b) there  shall be  delivered  to the  Securities
Registrar and the  Administrative  Trustees such security or indemnity as may be
required  by them to save each of them  harmless,  then in the absence of notice
that such Trust Securities  Certificate  shall have been acquired by a bona fide
purchaser,  the  Administrative  Trustees,  or any one of them, on behalf of the
Issuer Trust shall execute and make  available for delivery,  in exchange for or
in lieu of any  such  mutilated,  destroyed,  lost or  stolen  Trust  Securities
Certificate,  a new  Trust  Securities  Certificate  of like  class,  tenor  and
denomination.  In  connection  with the  issuance  of any new  Trust  Securities
Certificate  under  this  Section  5.5,  the  Administrative   Trustees  or  the
Securities  Registrar  may require the payment of a sum  sufficient to cover any
tax or other  governmental  charge that may be imposed in connection  therewith.
Any duplicate Trust Securities  Certificate  issued pursuant to this Section 5.5
shall constitute  conclusive evidence of an undivided beneficial interest in the
assets of the Issuer Trust  corresponding to that evidenced by the lost,  stolen
or destroyed Trust Securities  Certificate,  as if originally issued, whether or
not the lost, stolen or destroyed Trust Securities Certificate shall be found at
any time.

         SECTION 5.6. Persons Deemed Holders.

         The Issuer  Trustees and the Securities  Registrar shall each treat the
Person in whose name any Trust Securities Certificate shall be registered in the
Securities  Register as the owner of such Trust  Securities  Certificate for the
purpose of receiving  Distributions and for all other purposes  whatsoever,  and
none of the Issuer  Trustees and the Securities  Registrar shall be bound by any
notice to the contrary.

         SECTION 5.7. Access to List of Holders' Names and Addresses.

         Each  Holder and each Owner  shall be deemed to have agreed not to hold
the Depositor or the Issuer Trustees  accountable by reason of the disclosure of
its name and address,  regardless of the source from which such  information was
derived.


                                                        29

<PAGE>




         SECTION 5.8. Maintenance of Office or Agency.

         The  Administrative  Trustees  shall  maintain  an office or offices or
agency or agencies where Capital Securities  Certificates may be surrendered for
registration  of transfer or exchange  and where  notices and demands to or upon
the  Issuer  Trustees  in respect of the Trust  Securities  Certificates  may be
served.  The Administrative  Trustees  initially  designate HSB Group, Inc., One
State  Street,  Hartford,  Connecticut  06102 as its  office and agency for such
purposes.  The  Administrative  Trustees shall give prompt written notice to the
Depositor, the Property Trustee and to the Holders of any change in the location
of the Securities Register or any such office or agency.

         SECTION 5.9. Appointment of Paying Agents.

         The Paying Agent or Agents shall make Distributions to Holders from the
Payment  Account  and shall  report  the  amounts of such  Distributions  to the
Property Trustee and the  Administrative  Trustees.  Any Paying Agent shall have
the revocable  power to withdraw  funds from the Payment  Account solely for the
purpose  of making  the  Distributions  referred  to above.  The  Administrative
Trustees  may  revoke  such  power  and  remove  the  Paying  Agent  in its sole
discretion. The Paying Agent shall initially be the Bank and any co-paying agent
chosen by the Property Trustee and acceptable to the Administrative Trustees and
the Depositor. Any Person acting as Paying Agent shall be permitted to resign as
Paying Agent upon 30 days' written notice to the Administrative Trustees and the
Property Trustee. If the Bank shall no longer be the Paying Agent or a successor
Paying Agent shall resign or its authority to act be revoked, the Administrative
Trustees shall appoint a successor (which shall be a bank or trust company) that
is reasonably acceptable to the Depositor to act as Paying Agent. Such successor
Paying Agent or any  additional  Paying  Agent shall  execute and deliver to the
Issuer Trustees an instrument in which such successor Paying Agent or additional
Paying Agent shall agree with the Issuer  Trustees  that as Paying  Agent,  such
successor  Paying Agent or  additional  Paying Agent will hold all sums, if any,
held by it for  payment to the  Holders in trust for the  benefit of the Holders
entitled thereto until such sums shall be paid to such Holders. The Paying Agent
shall return all unclaimed  funds to the Property  Trustee and upon removal of a
Paying Agent such Paying Agent shall also return all funds in its  possession to
the Property  Trustee.  The provisions of Sections 8.1, 8.3 and 8.6 herein shall
apply to the  Bank  also in its role as  Paying  Agent,  for so long as the Bank
shall act as Paying  Agent and, to the extent  applicable,  to any other  paying
agent appointed  hereunder.  Any reference in this Agreement to the Paying Agent
shall include any co-paying agent unless the context requires otherwise.

         SECTION 5.10. Ownership of Common Securities by Depositor.

         On the Closing Date, the Depositor shall acquire,  and thereafter shall
retain,  beneficial and record ownership of the Common  Securities.  Neither the
Depositor nor any successor  Holder of the Common  Securities  may transfer less
than all the Common Securities (except in connection with a redemption thereof),
and  the  Depositor  or any  such  successor  Holder  may  transfer  the  Common
Securities only (i) in connection with a consolidation or merger of the


                                                        30

<PAGE>



Depositor into another corporation, or any conveyance,  transfer or lease by the
Depositor  of its  properties  and assets  substantially  as an  entirety to any
Person, pursuant to Section 8.1 of the Indenture, or (ii) to the Depositor or an
Affiliate of the Depositor in compliance  with  applicable  law  (including  the
Securities  Act and  applicable  state  securities  and blue sky  laws).  To the
fullest extent permitted by law, any attempted transfer of the Common Securities
other  than as set  forth in the next  proceeding  sentence  shall be void.  The
Administrative Trustees shall cause each Common Securities Certificate issued to
the Depositor to contain a legend stating substantially "THIS CERTIFICATE IS NOT
TRANSFERABLE  EXCEPT  TO THE  DEPOSITOR  OR AN  AFFILIATE  OF THE  DEPOSITOR  IN
COMPLIANCE WITH APPLICABLE LAW AND SECTION 5.10 OF THE TRUST AGREEMENT."

         SECTION 5.11. Restrictive Legends.

         The Capital Securities Certificate shall bear the following legend (the
"Restricted  Securities  Legend") unless the Depositor  determines  otherwise in
accordance with applicable law:

                  "THE CAPITAL  SECURITIES  EVIDENCED  HEREBY,  ANY  CONVERTIBLE
         SUBORDINATED  DEFERRABLE  INTEREST DEBENTURES ISSUABLE HEREWITH AND THE
         COMMON STOCK ISSUABLE UPON THEIR  CONVERSION  HAVE NOT BEEN  REGISTERED
         UNDER THE U.S.  SECURITIES ACT OF 1933 (THE  "SECURITIES  ACT") AND MAY
         NOT BE OFFERED,  SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN WHOLE
         OR IN PART (BUT IF IN PART,  IN AMOUNTS  NOT LESS THAN  $10,000,000  IN
         PRINCIPAL  AMOUNT) AND ONLY IN COMPLIANCE WITH THE  REQUIREMENTS OF THE
         SECURITIES ACT OR PURSUANT TO AN APPLICABLE EXEMPTION THEREFROM."

         SECTION 5.12. Rights of Holders; Waivers of Past Defaults.

         (a) The legal title to the Trust Property is vested  exclusively in the
Property  Trustee (in its capacity as such) in accordance  with Section 2.9, and
the Holders  shall not have any right or title  therein other than the undivided
beneficial  interest in the assets of the Issuer Trust  conferred by their Trust
Securities and they shall have no right to call for any partition or division of
property,  profits or rights of the Issuer Trust except as described  below. The
Trust Securities shall be personal property giving only the rights  specifically
set forth therein and in this Trust  Agreement.  The Trust Securities shall have
no preemptive or similar rights and when issued and delivered to Holders against
payment of the purchase price therefor will be fully paid and  nonassessable  by
the Issuer Trust.  The Holders of the Trust  Securities,  in their capacities as
such, shall be entitled to the same limitation of personal liability extended to
stockholders  of private  corporations  for profit  organized  under the General
Corporation Law of the State of Delaware.

         (b) For so long as any Capital Securities remain Outstanding,  if, upon
a Debenture Event of Default,  the Debenture Trustee fails or the holders of not
less than 25% in principal amount


                                                        31

<PAGE>



of the  outstanding  Debentures  fail to  declare  the  principal  of all of the
Debentures  to be  immediately  due and payable,  the Holders of at least 25% in
Liquidation  Amount of the Capital  Securities then  Outstanding  shall have the
right to make such  declaration by a notice in writing to the Property  Trustee,
the Depositor and the Debenture Trustee.

         At any time after a  declaration  of  acceleration  with respect to the
Debentures  has been made and  before a judgment  or decree  for  payment of the
money  due has  been  obtained  by the  Debenture  Trustee  as  provided  in the
Indenture, if the Property Trustee fails to annul any such declaration and waive
such default,  the Holders of at least a Majority in  Liquidation  Amount of the
Capital Securities, by written notice to the Property Trustee, the Depositor and
the  Debenture  Trustee,   may  rescind  and  annul  such  declaration  and  its
consequences if:

                  (i) the  Depositor  has paid or deposited  with the  Debenture
         Trustee a sum sufficient to pay:

                         (A) all overdue  installments of interest on all of the
                  Debentures,

                           (B) the  principal of (and  premium,  if any, on) any
                  Debentures  that  have  become  due  otherwise  than  by  such
                  declaration of acceleration  and interest  thereon at the rate
                  borne by the Debentures, and

                           (C)  all  sums  paid  or  advanced  by the  Debenture
                  Trustee under the Indenture and the  reasonable  compensation,
                  expenses,  disbursements and advances of the Debenture Trustee
                  and the Property Trustee, their agents and counsel; and

                  (ii) all Events of  Default  with  respect to the  Debentures,
         other than the  non-payment of the principal of the Debentures that has
         become  due solely by such  acceleration,  have been cured or waived as
         provided in Section 5.13 of the Indenture.

         The Holders of at least a Majority in Liquidation Amount of the Capital
Securities may, on behalf of the Holders of all the Trust Securities,  waive any
past default or Event of Default under the Indenture,  except a default or Event
of Default in the payment of principal or interest (unless such default or Event
of Default has been cured and a sum  sufficient to pay all matured  installments
of interest and principal due otherwise than by acceleration  has been deposited
with the  Debenture  Trustee)  or a default  or Event of Default in respect of a
covenant or  provision  that under the  Indenture  cannot be modified or amended
without  the  consent  of the  holder  of each  outstanding  Debenture.  No such
rescission  shall affect any subsequent  default or impair any right  consequent
thereon.

         Upon receipt by the Property  Trustee of written notice  declaring such
an acceleration,  or rescission and annulment thereof, by Holders of any part of
the Capital  Securities,  a record  date shall be  established  for  determining
Holders of Outstanding Capital Securities entitled to join in such notice, which
record date shall be at the close of business  on the day the  Property  Trustee
receives such notice.  The Holders on such record date, or their duly designated
proxies,


                                                        32

<PAGE>



and only such Persons,  shall be entitled to join in such notice, whether or not
such Holders remain Holders after such record date; provided,  that, unless such
declaration of  acceleration,  or rescission and annulment,  as the case may be,
shall have become effective by virtue of the requisite  percentage having joined
in such  notice  prior to the day that is 90 days after such record  date,  such
notice of declaration of acceleration,  or rescission and annulment, as the case
may be, shall automatically and without further action by any Holder be canceled
and of no further effect. Nothing in this paragraph shall prevent a Holder, or a
proxy of a Holder,  from giving,  after  expiration of such 90-day period, a new
written  notice of  declaration  of  acceleration,  or rescission  and annulment
thereof, as the case may be, that is identical to a written notice that has been
canceled pursuant to the proviso to the preceding sentence, in which event a new
record date shall be  established  pursuant to the  provisions  of this  Section
5.12(b).

         (c) For so long as any Capital  Securities remain  Outstanding,  to the
fullest extent permitted by law and subject to the terms of this Trust Agreement
and the Indenture, upon a Debenture Event of Default specified in Section 5.1(1)
or 5.1(2) of the  Indenture,  any  Holder of Capital  Securities  shall have the
right to  institute a proceeding  directly  against the  Depositor,  pursuant to
Section 5.9 of the Indenture,  for  enforcement of payment to such Holder of any
amounts payable in respect of Debentures  having an aggregate  principal  amount
equal to the  aggregate  Liquidation  Amount of the Capital  Securities  of such
Holder (a  "Direct  Action").  Except as set forth in Section  5.12(b)  and this
Section  5.12(c),  the  Holders  of  Capital  Securities  shall have no right to
exercise directly any right or remedy available to the holders of, or in respect
of, the Debentures.

         (d) Except as otherwise provided in paragraphs (a), (b) and (c) of this
Section 5.12,  the Holders of at least a Majority in  Liquidation  Amount of the
Capital  Securities  may, on behalf of the Holders of all the Trust  Securities,
waive any past  default  or Event of  Default  and its  consequences.  Upon such
waiver,  any such  default or Event of  Default  shall  cease to exist,  and any
default  or Event of  Default  arising  therefrom  shall be  deemed to have been
cured,  for every  purpose of this Trust  Agreement,  but no such  waiver  shall
extend to any  subsequent  or other  default  or Event of  Default or impair any
right consequent thereon.


                                   ARTICLE VI

                        ACTS OF HOLDERS; MEETINGS; VOTING

         SECTION 6.1. Limitations on Voting Rights.

         (a) Except as  expressly  provided in this Trust  Agreement  and in the
Indenture  and as  otherwise  required by law,  no Holder of Capital  Securities
shall  have  any  right  to  vote  or  in  any  manner  otherwise   control  the
administration,  operation and management of the Issuer Trust or the obligations
of the parties hereto,  nor shall anything herein set forth, or contained in the
terms of the Trust Securities Certificates, be construed so as to constitute the
Holders from time to time as partners or members of an association.


                                                        33

<PAGE>




         (b) So long as any  Debentures  are  held by the  Property  Trustee  on
behalf of the Issuer Trust,  the Property Trustee shall not (i) direct the time,
method and place of conducting any  proceeding  for any remedy  available to the
Debenture  Trustee,  or execute  any trust or power  conferred  on the  Property
Trustee with respect to the Debentures,  (ii) waive any past default that may be
waived under Section 5.13 of the Indenture,  (iii) exercise any right to rescind
or annul a declaration that the principal of all the Debentures shall be due and
payable,  or (iv) consent to any amendment,  modification  or termination of the
Indenture or the Debentures,  where such consent shall be required,  without, in
each case, obtaining the prior approval of the Holders of at least a Majority in
Liquidation Amount of the Capital Securities,  provided,  however,  that where a
consent  under  the  Indenture  would  require  the  consent  of each  Holder of
Debentures  affected  thereby,  no such  consent  shall be given by the Property
Trustee without the prior written consent of each Holder of Capital  Securities.
The  Property  Trustee  shall not  revoke any action  previously  authorized  or
approved  by a vote  of the  Holders  of the  Capital  Securities,  except  by a
subsequent vote of the Holders of the Capital  Securities.  The Property Trustee
shall  notify all  Holders of the  Capital  Securities  of any notice of default
received with respect to the Debentures.  In addition to obtaining the foregoing
approvals of the Holders of the Capital  Securities,  prior to taking any of the
foregoing  actions,  the Issuer Trustees shall, at the expense of the Depositor,
obtain an Opinion of Counsel experienced in such matters to the effect that such
action  shall not cause the  Issuer  Trust to be  taxable  as a  corporation  or
classified as other than a grantor trust for United  States  Federal  income tax
purposes.

         (c) If any proposed  amendment to the Trust Agreement  provides for, or
the Issuer  Trustees  otherwise  propose to  effect,  (i) any action  that would
adversely  affect in any  material  respect the powers,  preferences  or special
rights of the  Capital  Securities,  whether  by way of  amendment  to the Trust
Agreement or otherwise,  or (ii) the  dissolution,  winding-up or termination of
the Issuer Trust, other than pursuant to the terms of this Trust Agreement, then
the Holders of  Outstanding  Capital  Securities  as a class will be entitled to
vote on such  amendment or proposal and such  amendment or proposal shall not be
effective  except  with the  approval  of the  Holders of at least a Majority in
Liquidation  Amount  of  the  Capital  Securities.   Notwithstanding  any  other
provision of this Trust  Agreement,  no amendment to this Trust Agreement may be
made if, as a result of such  amendment,  it would cause the Issuer  Trust to be
taxable as a corporation  or classified as other than a grantor trust for United
States Federal income tax purposes.

         SECTION 6.2. Notice of Meetings.

         Notice  of all  meetings  of the  Holders  of the  Capital  Securities,
stating  the  time,  place and  purpose  of the  meeting,  shall be given by the
Property Trustee pursuant to Section 10.8 to each Holder of Capital  Securities,
at such Holder's  registered address, at least 15 days and not more than 90 days
before the  meeting.  At any such  meeting,  any  business  properly  before the
meeting may be so considered whether or not stated in the notice of the meeting.
Any adjourned meeting may be held as adjourned without further notice.



                                                        34

<PAGE>



         SECTION 6.3. Meetings of Holders of the Capital Securities.

         No annual meeting of Holders is required to be held. The Administrative
Trustees, however, shall call a meeting of the Holders of the Capital Securities
to vote on any matter upon the written request of the Holders of at least 25% in
aggregate  Liquidation  Amount of the  Outstanding  Capital  Securities  and the
Administrative  Trustees  or the  Property  Trustee  may,  at any  time in their
discretion,  call a meeting of the Holders of the Capital  Securities to vote on
any matters as to which such Holders are entitled to vote.

         The Holders of at least a Majority in Liquidation Amount of the Capital
Securities,  present  in person or by proxy,  shall  constitute  a quorum at any
meeting of the Holders of the Capital Securities.

         If a quorum is present at a meeting, an affirmative vote by the Holders
present, in person or by proxy, holding Capital Securities representing at least
a majority of the aggregate Liquidation Amount of the Capital Securities held by
the  Holders  present,  either  in person or by  proxy,  at such  meeting  shall
constitute  the action of the  Holders of the  Capital  Securities,  unless this
Trust Agreement requires a greater number of affirmative votes.

         SECTION 6.4. Voting Rights.

         Holders  shall be entitled  to one vote for each $1,000 of  Liquidation
Amount  represented  by their  Outstanding  Trust  Securities  in respect of any
matter as to which such Holders are entitled to vote.

         SECTION 6.5. Proxies, etc.

         At any meeting of Holders, any Holder entitled to vote thereat may vote
by proxy,  provided that no proxy shall be voted at any meeting  unless it shall
have been placed on file with the  Administrative  Trustees,  or with such other
officer or agent of the Issuer Trust as the Administrative  Trustees may direct,
for verification  prior to the time at which such vote shall be taken.  Pursuant
to a resolution of the Property Trustee, proxies may be solicited in the name of
the  Property  Trustee or one or more  officers of the  Property  Trustee.  Only
Holders of record  shall be entitled  to vote.  When Trust  Securities  are held
jointly by several persons, any one of them may vote at any meeting in person or
by proxy in respect of such Trust Securities, but if more than one of them shall
be present at such meeting in person or by proxy, and such joint owners or their
proxies so present  disagree  as to any vote to be cast,  such vote shall not be
received in respect of such Trust Securities.  A proxy purporting to be executed
by or on behalf of a Holder shall be deemed valid unless  challenged at or prior
to its  exercise,  and  the  burden  of  proving  invalidity  shall  rest on the
challenger.  No proxy  shall be valid  more than three  years  after its date of
execution.



                                                        35

<PAGE>



         SECTION 6.6. Holder Action by Written Consent.

         Any action  that may be taken by Holders  of  Capital  Securities  at a
meeting may be taken without a meeting if Holders holding at least a Majority in
Liquidation Amount of the Capital Securities entitled to vote in respect of such
action (or such  larger  proportion  thereof as shall be  required  by any other
provision of this Trust Agreement)  shall consent to the action in writing.  Any
action that may be taken by the Holder of all the Common Securities may be taken
if such Holder shall consent to the action in writing.

         SECTION 6.7. Record Date for Voting and Other Purposes.

         For the purposes of determining  the Holders who are entitled to notice
of and to vote at any meeting or by written  consent,  or to  participate in any
distribution  on the Trust  Securities  in respect of which a record date is not
otherwise provided for in this Trust Agreement,  or for the purpose of any other
action, the  Administrative  Trustees may from time to time fix a date, not more
than 90 days prior to the date of any  meeting  of  Holders or the  payment of a
distribution  or other  action,  as the case  may be,  as a record  date for the
determination of the identity of the Holders of record for such purposes.

         SECTION 6.8. Acts of Holders.

         Any request, demand, authorization,  direction, notice, consent, waiver
or other action provided or permitted by this Trust Agreement to be given,  made
or taken by Holders may be embodied in and evidenced by one or more  instruments
of  substantially  similar tenor signed by such Holders in person or by an agent
duly appointed in writing;  and, except as otherwise  expressly provided herein,
such action shall become  effective  when such  instrument  or  instruments  are
delivered to an Administrative  Trustee. Such instrument or instruments (and the
action embodied therein and evidenced  thereby) are herein sometimes referred to
as the "Act" of the Holders  signing such  instrument or  instruments.  Proof of
execution of any such instrument or of a writing appointing any such agent shall
be  sufficient  for any purpose of this Trust  Agreement and (subject to Section
8.1) conclusive in favor of the Issuer Trustees,  if made in the manner provided
in this Section 6.8.

         The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate  of a notary  public  or  other  officer  authorized  by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than such signer's individual capacity, such
certificate or affidavit shall also constitute sufficient proof of such signer's
authority. The fact and date of the execution of any such instrument or writing,
or the  authority of the Person  executing  the same,  may also be proved in any
other manner that any Issuer Trustee receiving the same deems sufficient.

         The  ownership of Trust  Securities  shall be proved by the  Securities
Register.


                                                        36

<PAGE>




         Any request, demand, authorization,  direction, notice, consent, waiver
or other Act of the Holder of any Trust  Security shall bind every future Holder
of the same Trust  Security and the Holder of every Trust  Security  issued upon
the registration of transfer thereof or in exchange  therefor or in lieu thereof
in respect  of  anything  done,  omitted  or  suffered  to be done by the Issuer
Trustees, the Depositor or the Issuer Trust in reliance thereon,  whether or not
notation of such action is made upon such Trust Security.

         Without limiting the foregoing, a Holder entitled hereunder to take any
action  hereunder  with regard to any  particular  Trust Security may do so with
regard to all or any part of the Liquidation Amount of such Trust Security or by
one or more  duly  appointed  agents  each of which may do so  pursuant  to such
appointment with regard to all or any part of such Liquidation Amount.

         If any dispute  shall  arise  among the Holders or the Issuer  Trustees
with  respect to the  authenticity,  validity or binding  nature of any request,
demand, authorization, direction, consent, waiver or other Act of such Holder or
Issuer Trustee under this Article VI, then the  determination  of such matter by
the Property Trustee shall be conclusive with respect to such matter.

         SECTION 6.9. Inspection of Records.

         Upon reasonable notice to the Administrative  Trustees and the Property
Trustee,  the records of the Issuer Trust shall be open to inspection by Holders
(and  other  Issuer  Trustees)  during  normal  business  hours for any  purpose
reasonably  related  to such  Holder's  interest  as a Holder  (or  such  Issuer
Trustee's service as a Trustee hereunder).


                                   ARTICLE VII

                         REPRESENTATIONS AND WARRANTIES

     SECTION 7.1. Representations and Warranties of the Property Trustee and the
Delaware Trustee.

         The Property Trustee and the Delaware Trustee, each severally on behalf
of and as to itself,  hereby  represents  and  warrants  for the  benefit of the
Depositor and the Holders that:

         (a) the Property Trustee is a national  banking  association with trust
powers, duly organized,  validly existing and in good standing under the laws of
the United States;

         (b) the Property Trustee has full corporate power,  authority and legal
right to execute, deliver and perform its obligations under this Trust Agreement
and has taken all  necessary  action to authorize  the  execution,  delivery and
performance by it of this Trust Agreement;



                                                        37

<PAGE>



         (c) the Delaware  Trustee is a Delaware  corporation,  duly  organized,
validly  existing and in good  standing  under the laws of the State of Delaware
and satisfies for the Issuer Trust the  requirements  of Section  3807(a) of the
Delaware Business Trust Act;

         (d) the Delaware Trustee has full corporate power,  authority and legal
right to execute, deliver and perform its obligations under this Trust Agreement
and has taken all  necessary  action to authorize  the  execution,  delivery and
performance by it of this Trust Agreement;

         (e)  this  Trust  Agreement  has been  duly  authorized,  executed  and
delivered by the Property  Trustee and the Delaware  Trustee and constitutes the
valid and legally  binding  agreement  of each of the  Property  Trustee and the
Delaware Trustee  enforceable against each of them in accordance with its terms,
subject  to  bankruptcy,   insolvency,   fraudulent  transfer,   reorganization,
moratorium  and similar laws of general  applicability  relating to or affecting
creditors' rights and to general equity principles;

         (f) the execution,  delivery and  performance  of this Trust  Agreement
have been duly authorized by all necessary corporate or other action on the part
of the Property Trustee and the Delaware Trustee and do not require any approval
of  stockholders  of the  Property  Trustee  and the  Delaware  Trustee and such
execution,  delivery and performance will not (i) violate the Charter or By-laws
of the Property Trustee or the Delaware Trustee,  (ii) violate any provision of,
or  constitute,  with or without  notice or lapse of time, a default  under,  or
result in the creation or imposition of, any Lien on any properties  included in
the Trust  Property  pursuant to the  provisions  of, any  indenture,  mortgage,
credit agreement, license or other agreement or instrument to which the Property
Trustee or the  Delaware  Trustee  is a party or by which it is bound,  or (iii)
violate any law,  governmental  rule or  regulation  of the United States or the
State of Delaware,  as the case may be, governing the banking,  trust or general
powers of the  Property  Trustee or the  Delaware  Trustee  (as  appropriate  in
context) or any order,  judgment or decree applicable to the Property Trustee or
the Delaware Trustee;

         (g) neither the  authorization,  execution  or delivery by the Property
Trustee or the Delaware  Trustee of this Trust Agreement nor the consummation of
any of the transactions by the Property Trustee or the Delaware Trustee,  as the
case may be, contemplated herein requires the consent or approval of, the giving
of notice  to, the  registration  with or the  taking of any other  action  with
respect to any  governmental  authority  or agency under any existing law of the
United States or the State of Delaware  governing the banking,  trust or general
powers of the Property Trustee or the Delaware Trustee,  appropriate in context;
and

         (h) there  are no  proceedings  pending  or, to the best of each of the
Property Trustee's and the Delaware Trustee's  knowledge,  threatened against or
affecting  the Property  Trustee or the Delaware  Trustee in any court or before
any  governmental  authority,  agency or  arbitration  board or  tribunal  that,
individually  or in the aggregate,  would  materially  and adversely  affect the
Issuer Trust or would  question the right,  power and  authority of the Property
Trustee or the  Delaware  Trustee,  as the case may be, to enter into or perform
its obligations as one of the Issuer Trustees under this Trust Agreement.


                                                        38

<PAGE>




         SECTION 7.2. Representations and Warranties of Depositor.

         The  Depositor  hereby  represents  and warrants for the benefit of the
Holders that:

         (a) the Trust  Securities  Certificates  issued on the Closing  Date on
behalf of the Issuer Trust have been duly authorized and will have been duly and
validly  executed,  issued and delivered by the Issuer Trustees  pursuant to the
terms and provisions of, and in accordance with the  requirements of, this Trust
Agreement and the Holders will be, as of such date,  entitled to the benefits of
this Trust Agreement; and

         (b) there are no taxes, fees or other  governmental  charges payable by
the Issuer  Trust (or the Issuer  Trustees on behalf of the Issuer  Trust) under
the laws of the  State of  Delaware  or any  political  subdivision  thereof  in
connection with the execution, delivery and performance by either Issuer Trustee
of this Trust Agreement.


                                  ARTICLE VIII

                       THE ISSUER TRUSTEES; PAYING AGENTS

         SECTION 8.1. Certain Duties and Responsibilities.

         (a) The duties and  responsibilities of the Issuer Trustees shall be as
provided  by this Trust  Agreement  and,  in the case of the  Property  Trustee,
subject to the Trust Indenture Act.  Notwithstanding the foregoing,  but subject
to Section 8.1(c) and 8.1(e), no provision of this Trust Agreement shall require
any of the Issuer Trustees to expend or risk its or their own funds or otherwise
incur any financial  liability in the  performance of any of its or their duties
hereunder,  or in the exercise of any of its or their rights or powers, if it or
they shall have reasonable grounds for believing that repayment of such funds or
adequate  indemnity against such risk or liability is not reasonably  assured to
it or them.  Whether or not therein  expressly so provided,  every  provision of
this Trust  Agreement  relating to the conduct or affecting  the liability of or
affording  protection to the Issuer  Trustees shall be subject to the provisions
of this  Section  8.1.  Nothing in this Trust  Agreement  shall be  construed to
release  an  Administrative  Trustee  from  liability  for his or her own  gross
negligent  action,  his or her own gross negligent failure to act, or his or her
own wilful  misconduct.  To the  extent  that,  at law or in  equity,  an Issuer
Trustee  has  duties and  liabilities  relating  to the  Issuer  Trust or to the
Holders,  such Issuer  Trustee shall not be liable to the Issuer Trust or to any
Holder for such Issuer  Trustee's  good faith reliance on the provisions of this
Trust Agreement. The provisions of this Trust Agreement, to the extent that they
restrict the duties and liabilities of the Issuer Trustees otherwise existing at
law or in equity,  are agreed by the  Depositor  and the Holders to replace such
other duties and liabilities of the Issuer Trustees.

         (b) All  payments  made by the  Property  Trustee or a Paying  Agent in
respect of the Trust Securities shall be made only from the revenue and proceeds
from the Trust Property and only


                                                        39

<PAGE>



to the extent that there shall be sufficient  revenue or proceeds from the Trust
Property to enable the Property  Trustee or a Paying  Agent to make  payments in
accordance  with the terms  hereof.  Each Holder,  by its  acceptance of a Trust
Security,  agrees that it will look solely to the revenue and proceeds  from the
Trust Property to the extent legally  available for distribution to it as herein
provided and that the Issuer  Trustees are not  personally  liable to it for any
amount distributable in respect of any Trust Security or for any other liability
in  respect  of any  Trust  Security.  This  Section  8.1(b)  does not limit the
liability of the Issuer  Trustees  expressly  set forth  elsewhere in this Trust
Agreement or, in the case of the Property Trustee, in the Trust Indenture Act.

         (c) If an Event of Default has occurred and is continuing, the Property
Trustee shall enforce this Trust Agreement for the benefit of the Holders.

         (d) The Property Trustee, before the occurrence of any Event of Default
and after the  curing of all  Events of Default  that may have  occurred,  shall
undertake  to perform  only such  duties as are  specifically  set forth in this
Trust Agreement  (including pursuant to Section 10.10), and no implied covenants
shall be read into this Trust  Agreement  against the  Property  Trustee.  If an
Event of Default  has  occurred  (that has not been cured or waived  pursuant to
Section 5.12), the Property Trustee shall exercise such of the rights and powers
vested in it by this Trust Agreement,  and use the same degree of care and skill
in its exercise  thereof,  as a prudent  person would  exercise or use under the
circumstances in the conduct of his or her own affairs.

         (e) No provision of this Trust  Agreement shall be construed to relieve
the Property  Trustee  from  liability  for its own  negligent  action,  its own
negligent failure to act, or its own wilful misconduct, except that:

                  (i) prior to the  occurrence of any Event of Default and after
         the  curing or  waiving  of all such  Events of  Default  that may have
         occurred:

                           (A)  the  duties  and  obligations  of  the  Property
                  Trustee shall be determined  solely by the express  provisions
                  of this Trust Agreement (including pursuant to Section 10.10),
                  and the Property  Trustee  shall not be liable  except for the
                  performance of such duties and obligations as are specifically
                  set  forth in this  Trust  Agreement  (including  pursuant  to
                  Section 10.10); and

                           (B) in the  absence  of bad  faith on the part of the
                  Property Trustee,  the Property Trustee may conclusively rely,
                  as to the truth of the statements  and the  correctness of the
                  opinions expressed therein,  upon any certificates or opinions
                  furnished  to  the  Property  Trustee  and  conforming  to the
                  requirements of this Trust  Agreement;  but in the case of any
                  such  certificates or opinions that by any provision hereof or
                  of the Trust  Indenture  Act are  specifically  required to be
                  furnished to the Property Trustee,  the Property Trustee shall
                  be under a duty to examine  the same to  determine  whether or
                  not they conform to the requirements of this Trust Agreement.


                                                        40

<PAGE>




                  (ii) the Property Trustee shall not be liable for any error of
         judgment  made in good faith by an  authorized  officer of the Property
         Trustee,  unless  it shall be  proved  that the  Property  Trustee  was
         negligent in ascertaining the pertinent facts;

                  (iii) the Property Trustee shall not be liable with respect to
         any  action  taken  or  omitted  to be  taken  by it in good  faith  in
         accordance  with the direction of the Holders of at least a Majority in
         Liquidation  Amount of the  Capital  Securities  relating  to the time,
         method and place of conducting any proceeding for any remedy  available
         to the Property  Trustee,  or exercising  any trust or power  conferred
         upon the Property Trustee under this Trust Agreement;

                  (iv) the  Property  Trustee's  sole duty with  respect  to the
         custody,  safe keeping and physical  preservation of the Debentures and
         the Payment  Account  shall be to deal with such  Property in a similar
         manner as the Property  Trustee deals with similar property for its own
         account,  subject  to the  protections  and  limitations  on  liability
         afforded to the Property  Trustee  under this Trust  Agreement  and the
         Trust Indenture Act;

                  (v) the Property  Trustee shall not be liable for any interest
         on any money  received by it except as it may otherwise  agree with the
         Depositor;  and  money  held  by  the  Property  Trustee  need  not  be
         segregated  from  other  funds  held by it  except in  relation  to the
         Payment Account  maintained by the Property Trustee pursuant to Section
         3.1 and except to the extent otherwise required by law; and

                  (vi)  the  Property  Trustee  shall  not  be  responsible  for
         monitoring  the  compliance  by  the  Administrative  Trustees  or  the
         Depositor with their respective duties under this Trust Agreement,  nor
         shall the Property  Trustee be liable for the default or  misconduct of
         any other Issuer Trustee or the Depositor;

         (f) The Administrative Trustees shall not be responsible for monitoring
the  compliance by the Issuer  Trustees or the Depositor  with their  respective
duties under this Trust Agreement,  nor shall either  Administrative  Trustee be
liable  for the  default  or  misconduct  of any  other  Issuer  Trustee  or the
Depositor.  The  Delaware  Trustee  shall  not  be  responsible  for  monitoring
compliance by the Property Trustee, the Administrative Trustees or the Depositor
with their respective duties under this Trust Agreement,  nor shall the Delaware
Trustee be liable for the default or misconduct  of any other Issuer  Trustee or
the Depositor.

         SECTION 8.2. Certain Notices.

         Within  thirty (30) days after the  occurrence  of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit,  in
the manner and to the extent  provided in Section 10.8,  notice of such Event of
Default to the  Holders  and the  Administrative  Trustee,  unless such Event of
Default shall have been cured or waived.



                                                        41

<PAGE>



         Within  five   Business  Days  after  the  receipt  of  notice  of  the
Depositor's  exercise  of its  right to defer the  payment  of  interest  on the
Debentures, the Property Trustee shall transmit, in the manner and to the extent
provided  in  Section  10.8,  notice of such  exercise  to the  Holders  and the
Administrative Trustees, unless such exercise shall have been revoked.

         The Property Trustee shall not be deemed to have knowledge of any Event
of Default unless the Property Trustee shall have received written notice,  or a
Responsible  Officer  charged with the  administration  of this Trust  Agreement
shall have obtained actual knowledge, of such Event of Default.

         SECTION 8.3. Certain Rights of Property Trustee.

         Subject to the provisions of Section 8.1:

         (a) the  Property  Trustee may rely and shall be protected in acting or
refraining  from acting in good faith upon any  resolution,  Opinion of Counsel,
certificate,  written  representation of a Holder or transferee,  certificate of
auditors  or any other  certificate,  statement,  instrument,  opinion,  report,
notice,  request,  consent,  order,  appraisal,  bond,  debenture,  note,  other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

         (b) if (i) in  performing  its duties  under this Trust  Agreement  the
Property  Trustee is required to decide between  alternative  courses of action,
(ii) in construing  any of the  provisions of this Trust  Agreement the Property
Trustee  finds the same  ambiguous  or  inconsistent  with any other  provisions
contained  herein, or (iii) the Property Trustee is unsure of the application of
any provision of this Trust Agreement, then, except as to any matter as to which
the Holders of the Capital  Securities  are  entitled to vote under the terms of
this  Trust  Agreement,  the  Property  Trustee  shall  deliver  a notice to the
Depositor  requesting the  Depositor's  opinion as to the course of action to be
taken and the Property  Trustee  shall take such action,  or refrain from taking
such action,  as the Property Trustee shall be instructed in writing to take, or
to  refrain  from  taking,  by the  Depositor;  provided,  however,  that if the
Property Trustee does not receive such  instructions of the Depositor within ten
Business Days after it has delivered  such notice,  or such  reasonably  shorter
period of time set forth in such notice (which to the extent  practicable  shall
not be less than two Business Days), it may, but shall be under no duty to, take
or refrain from taking such action not inconsistent with this Trust Agreement as
it shall deem advisable and in the best interests of the Holders, in which event
the  Property  Trustee  shall  have no  liability  except for its own bad faith,
negligence or wilful misconduct;

         (c) any  direction or act of the Depositor  contemplated  by this Trust
Agreement shall be sufficiently evidenced by an Officers' Certificate;

         (d) any direction or act of an Administrative  Trustee  contemplated by
this Trust Agreement shall be sufficiently  evidenced by a certificate  executed
by such Administrative Trustee and setting forth such direction or act;


                                                        42

<PAGE>




         (e) the Property  Trustee  shall have no duty to see to any  recording,
filing  or   registration   of  any  instrument   (including  any  financing  or
continuation  statement  or any  filing  under  tax or  securities  laws) or any
rerecording, refiling or re-registration thereof;

         (f) the Property Trustee may consult with counsel (which counsel may be
counsel to the  Depositor or any of its  Affiliates,  and may include any of its
employees)   and  the  advice  of  such  counsel  shall  be  full  and  complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder  in good faith and in reliance  thereon and in  accordance  with
such  advice;  the  Property  Trustee  shall  have the right at any time to seek
instructions  concerning  the  administration  of this Trust  Agreement from any
court of competent jurisdiction;

         (g) the Property  Trustee  shall be under no obligation to exercise any
of the rights or powers  vested in it by this Trust  Agreement at the request or
direction of any of the Holders  pursuant to this Trust  Agreement,  unless such
Holders  shall have  offered to the  Property  Trustee  reasonable  security  or
indemnity against the costs,  expenses and liabilities that might be incurred by
it in  compliance  with  such  request  or  direction;  provided  that,  nothing
contained in this Section 8.3(g) shall be taken to relieve the Property Trustee,
upon the  occurrence of an Event of Default,  of its  obligation to exercise the
rights and powers vested in it by this Trust Agreement;

         (h) the Property  Trustee shall not be bound to make any  investigation
into the facts or  matters  stated in any  resolution,  certificate,  statement,
instrument,  opinion,  report, notice, request,  consent, order, approval, bond,
debenture,  note or other evidence of  indebtedness  or other paper or document,
unless  requested in writing to do so by one or more  Holders,  but the Property
Trustee  may make such  further  inquiry  or  investigation  into such  facts or
matters as it may see fit;

         (i) the  Property  Trustee  may  execute  any of the  trusts  or powers
hereunder or perform any duties  hereunder  either directly or by or through its
agents or attorneys, provided that the Property Trustee shall be responsible for
its own negligence,  bad faith or wilful misconduct with respect to selection of
any agent or attorney appointed by it hereunder;

         (j) whenever in the administration of this Trust Agreement the Property
Trustee  shall  deem it  desirable  to  receive  instructions  with  respect  to
enforcing any remedy or right or taking any other action hereunder, the Property
Trustee (i) may request  instructions  from the Holders (which  instructions may
only be given by the Holders of the same proportion in Liquidation Amount of the
Trust  Securities as would be entitled to direct the Property  Trustee under the
terms of the Trust Securities in respect of such remedy, right or action),  (ii)
may refrain  from  enforcing  such  remedy or right or taking such other  action
until such instructions are received,  and (iii) shall be protected in acting in
accordance with such instructions; and

         (k) except as otherwise expressly provided by this Trust Agreement, the
Property  Trustee  shall not be under any  obligation to take any action that is
discretionary under the provisions of this Trust Agreement.


                                                        43

<PAGE>




         No provision of this Trust Agreement shall be deemed to impose any duty
or obligation  on any Issuer  Trustee to perform any act or acts or exercise any
right, power, duty or obligation conferred or imposed on it, in any jurisdiction
in which it shall be illegal, or in which it shall be unqualified or incompetent
in  accordance  with  applicable  law,  to perform  any such act or acts,  or to
exercise any such right,  power,  duty or  obligation.  No  permissive  power or
authority available to any Issuer Trustee shall be construed to be a duty.

         SECTION 8.4. Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Trust Securities  Certificates
shall be taken as the statements of the Depositor and the Issuer Trust,  and the
Issuer  Trustees do not assume any  responsibility  for their  correctness.  The
Issuer  Trustees  shall not be  accountable  for the use or  application  by the
Depositor of the proceeds of the Debentures.

         The Property Trustee may conclusively  assume that any funds held by it
hereunder  are  legally  available  unless an  officer of the  Property  Trustee
assigned to its Corporate Trust division shall have received written notice from
the  Depositor,  any Holder or any other Issuer  Trustee that such funds are not
legally available.

         SECTION 8.5. May Hold Securities.

         Any Issuer  Trustee  or any agent of any  Issuer  Trustee or the Issuer
Trust, in its individual or any other capacity,  may become the owner or pledgee
of Trust  Securities  and,  subject  to  Sections  8.8 and 8.13  and,  except as
provided in the definition of the term "Outstanding" in Article I, may otherwise
deal with the Issuer  Trust with the same rights it would have if it were not an
Issuer Trustee or such agent.

         SECTION 8.6. Compensation; Indemnity; Fees.

         The Depositor agrees:

         (a) to pay to each Issuer  Trustee  and Paying  Agent from time to time
such reasonable  compensation for all services rendered by them hereunder as may
be agreed by the Depositor and such Issuer Trustee or Paying Agent,  as the case
may be,  from  time to time  (which  compensation  shall not be  limited  by any
provision  of law in  regard to the  compensation  of a  trustee  of an  express
trust);

         (b) except as otherwise  expressly  provided herein,  to reimburse each
Issuer  Trustee  and Paying  Agent upon  request  for all  reasonable  expenses,
disbursements  and advances  incurred or made by each Issuer  Trustee and Paying
Agent in accordance  with any provision of this Trust  Agreement  (including the
reasonable  compensation and the expenses and  disbursements of their agents and
counsel),   except  any  such  expense,   disbursement  or  advance  as  may  be
attributable to their negligence, bad faith or wilful misconduct; and



                                                        44

<PAGE>



         (c) to the fullest extent permitted by applicable law, to indemnify and
hold  harmless  (i) each  Issuer  Trustee,  (ii) each  Paying  Agent,  (iii) any
Affiliate  of any  Issuer  Trustee,  (iv) any  officer,  director,  shareholder,
employee, representative or agent of any Issuer Trustee, and (v) any employee or
agent of the Issuer Trust (referred to herein as an  "Indemnified  Person") from
and against any loss, damage,  liability,  tax, penalty, expense or claim of any
kind or nature whatsoever  incurred by such Indemnified  Person by reason of the
creation,  operation or  termination  of the Issuer Trust or any act or omission
performed or omitted by such  Indemnified  Person in good faith on behalf of the
Issuer Trust and in a manner such Indemnified  Person reasonably  believed to be
within the scope of authority conferred on such Indemnified Person by this Trust
Agreement, except that no Indemnified Person shall be entitled to be indemnified
in respect of any loss,  damage or claim incurred by such Indemnified  Person by
reason of negligence,  bad faith or wilful  misconduct with respect to such acts
or omissions.

         (d) to the fullest  extent  permitted  by  applicable  law, the parties
intend that Section 3561 of Title 12 of the Delaware Code shall not apply to the
Issuer Trust and that  compensation  payable to any Issuer  Trustee  pursuant to
this  Section  8.6 not be subject to review by any court under  Section  3560 of
Title 12 of the Delaware Code or otherwise.

         The  provisions  of this Section 8.6 shall survive the  termination  of
this Trust Agreement and the resignation or removal of any Issuer Trustee.

         No  Issuer  Trustee  or  Paying  Agent  may claim any Lien on any Trust
Property as a result of any amount due pursuant to this Section 8.6.

         The Depositor,  any Issuer Trustee  (subject to Section 8.8(a)) and any
Paying Agent may engage in or possess an interest in other business  ventures of
any nature or description,  independently or with others,  similar or dissimilar
to the  business of the Issuer  Trust,  and the Issuer  Trust and the Holders of
Trust  Securities  shall have no rights by virtue of this Trust Agreement in and
to such independent ventures or the income or profits derived therefrom, and the
pursuit of any such venture, even if competitive with the business of the Issuer
Trust,  shall not be deemed  wrongful or improper.  Neither the  Depositor,  any
Paying Agent nor any Issuer Trustee shall be obligated to present any particular
investment or other  opportunity to the Issuer Trust even if such opportunity is
of a character  that,  if presented to the Issuer  Trust,  could be taken by the
Issuer Trust,  and the  Depositor,  any Issuer Trustee or any Paying Agent shall
have the right to take for its own  account  (individually  or as a  partner  or
fiduciary)  or to recommend to others any such  particular  investment  or other
opportunity.  Any Issuer  Trustee or Paying Agent may engage or be interested in
any  financial or other  transaction  with the Depositor or any Affiliate of the
Depositor,  or may act as  depository  for,  trustee or agent for, or act on any
committee  or body  of  holders  of,  securities  or  other  obligations  of the
Depositor or its Affiliates.

     SECTION 8.7.  Corporate  Property Trustee  Required;  Eligibility of Issuer
Trustees.

         (a)  There  shall at all times be a  Property  Trustee  hereunder  with
respect to the Trust Securities.  The Property Trustee shall be a Person that is
a national or state chartered bank and


                                                        45

<PAGE>



eligible pursuant to the Trust Indenture Act to act as such, and that has at the
time of such  appointment  securities  rated in one of the three highest  rating
categories by a nationally  recognized  statistical  rating  organization  and a
combined  capital  and  surplus  of at least  $50,000,000.  If any  such  Person
publishes  reports of  condition  at least  annually,  pursuant to law or to the
requirements of its supervising or examining authority, then for the purposes of
this  Section 8.7 and to the extent  permitted by the Trust  Indenture  Act, the
combined  capital and surplus of such Person  shall be deemed to be its combined
capital  and  surplus as set forth in its most  recent  report of  condition  so
published.  If at any  time the  Property  Trustee  with  respect  to the  Trust
Securities  shall cease to be eligible in accordance with the provisions of this
Section  8.7,  it shall  resign  immediately  in the  manner and with the effect
hereinafter specified in this Article. At the time of appointment,  the Property
Trustee must have securities rated in one of the three highest rating categories
by a nationally recognized statistical rating organization.

         (b)  There  shall at all times be one or more  Administrative  Trustees
hereunder.  Each Administrative  Trustee shall be either a natural person who is
at least 21 years of age or a legal  entity  that shall act  through one or more
persons authorized to bind that entity.

         (c)  There  shall at all times be a  Delaware  Trustee  hereunder.  The
Delaware  Trustee shall either be (i) a natural  person who is at least 21 years
of age and a resident of the State of Delaware,  or (ii) a legal entity with its
principal  place of business in the State of Delaware and that  otherwise  meets
the  requirements  of applicable  Delaware law and that shall act through one or
more persons authorized to bind such entity.

         SECTION 8.8. Conflicting Interests.

         (a) If the Property Trustee has or shall acquire a conflicting interest
within the meaning of the Trust Indenture Act, the Property Trustee shall either
eliminate such interest or resign,  to the extent and in the manner provided by,
and  subject  to the  provisions  of,  the Trust  Indenture  Act and this  Trust
Agreement.

         (b) The Guarantee  Agreement  and the  Indenture  shall be deemed to be
specifically described in this Trust Agreement for the purposes of clause (i) of
the first proviso contained in Section 310(b) of the Trust Indenture Act.

         SECTION 8.9. Co-Trustees and Separate Trustee.

         Unless an Event of Default  shall have occurred and be  continuing,  at
any time or times,  for the  purpose of meeting  the legal  requirements  of the
Trust  Indenture  Act or of any  jurisdiction  in which  any  part of the  Trust
Property may at the time be located,  Depositor and the Administrative Trustees,
by agreed  action of the majority of them shall have power to appoint,  and upon
the written  request of the  Administrative  Trustee and the Depositor shall for
such purpose join with the Administrative  Trustees in the execution,  delivery,
and  performance  of all  instruments  and  agreements  necessary  or  proper to
appoint,  one or more Persons  approved by the Property Trustee either to act as
co-trustee, jointly with the Property Trustee, of all or


                                                        46

<PAGE>



any part of such  Trust  Property,  or to the extent  required  by law to act as
separate trustee of any such property, in either case with such powers as may be
provided in the instrument of appointment, and to vest in such Person or Persons
in the capacity aforesaid, any property,  title, right or power deemed necessary
or  desirable,  subject  to the  other  provisions  of  this  Section  8.9.  Any
co-trustee  or separate  trustee  appointed  pursuant to this  Section 8.9 shall
either be (i) a natural person who is at least 21 years of age and a resident of
the United States,  or (ii) a legal entity with its principal  place of business
in the United  States that shall act through one or more persons  authorized  to
bind such entity. If an Event of Default under the Indenture shall have occurred
and be continuing,  the Property Trustee alone shall have the power to make such
appointment.

         Should any written  instrument  from the  Depositor  be required by any
co-trustee or separate  trustee so appointed  for more fully  confirming to such
co-trustee or separate  trustee such property,  title,  right, or power, any and
all such instruments shall, on request, be executed,  acknowledged and delivered
by the Depositor.

         Every  co-trustee or separate trustee shall, to the extent permitted by
law,  but to such extent  only,  be appointed  subject to the  following  terms,
namely:

         (a)  The  Trust   Securities   shall  be   executed   by  one  or  more
Administrative  Trustees,  and the Trust  Securities  shall be  delivered by the
Property Trustee, and all rights,  powers,  duties, and obligations hereunder in
respect of the custody of securities,  cash and other personal property held by,
or required to be deposited or pledged  with,  the  Property  Trustee  specified
hereunder  shall be  exercised  solely by the  Property  Trustee and not by such
co-trustee or separate trustee.

         (b) The rights,  powers,  duties,  and obligations  hereby conferred or
imposed  upon the Property  Trustee in respect of any  property  covered by such
appointment shall be conferred or imposed upon and exercised or performed by the
Property  Trustee or by the  Property  Trustee and such  co-trustee  or separate
trustee  jointly,  as  shall  be  provided  in the  instrument  appointing  such
co-trustee or separate  trustee,  except to the extent that under any law of any
jurisdiction  in which  any  particular  act is to be  performed,  the  Property
Trustee shall be  incompetent or unqualified to perform such act, in which event
such rights,  powers, duties and obligations shall be exercised and performed by
such co-trustee or separate trustee.

         (c) The  Property  Trustee  at any time,  by an  instrument  in writing
executed by it, with the written  concurrence of the  Depositor,  may accept the
resignation of or remove any co-trustee or separate trustee appointed under this
Section  8.9,  and, in case a Debenture  Event of Default  has  occurred  and is
continuing,  the Property Trustee shall have power to accept the resignation of,
or remove,  any such  co-trustee or separate  trustee without the concurrence of
the Depositor.  Upon the written request of the Property Trustee,  the Depositor
shall join with the Property Trustee in the execution,  delivery and performance
of all  instruments  and  agreements  necessary  or  proper to  effectuate  such
resignation  or removal.  A successor to any  co-trustee or separate  trustee so
resigning  or removed may be  appointed  in the manner  provided in this Section
8.9.


                                                        47

<PAGE>




         (d) No co-trustee  or separate  trustee  hereunder  shall be personally
liable by reason of any act or  omission  of the  Property  Trustee or any other
trustee hereunder.

         (e) The Property  Trustee shall not be liable by reason of any act of a
co-trustee or separate trustee.

         (f) Any Act of  Holders  delivered  to the  Property  Trustee  shall be
deemed to have been delivered to each such co-trustee and separate trustee.

         SECTION 8.10. Resignation and Removal; Appointment of Successor.

         No  resignation  or  removal  of  any  Issuer  Trustee  (the  "Relevant
Trustee") and no  appointment  of a successor  Issuer  Trustee  pursuant to this
Article  shall become  effective  until the  acceptance  of  appointment  by the
successor  Issuer  Trustee in accordance  with the  applicable  requirements  of
Section 8.11.

         Subject to the immediately  preceding  paragraph,  the Relevant Trustee
may resign at any time by giving written  notice thereof to the Holders.  If the
instrument of acceptance by the  successor  Issuer  Trustee  required by Section
8.11 shall not have been delivered to the Relevant  Trustee within 60 days after
the giving of such notice of resignation,  the Relevant Trustee may petition, at
the  expense  of the  Depositor,  any court of  competent  jurisdiction  for the
appointment of a successor Relevant Trustee.

         Unless  a  Debenture  Event  of  Default  shall  have  occurred  and be
continuing,  any Issuer  Trustee may be removed at any time by Act of the Holder
of the Common  Securities.  If a Debenture  Event of Default shall have occurred
and be  continuing,  the Property  Trustee or the Delaware  Trustee,  or both of
them,  may be  removed  at such  time by Act of the  Holders  of a  Majority  in
Liquidation Amount of the Capital Securities,  delivered to the Relevant Trustee
(in its individual  capacity and, in the case of the Property Trustee, on behalf
of the  Issuer  Trust).  An  Administrative  Trustee  may only be removed by the
Holder of the Common Securities and may be so removed at any time.

         If any Issuer Trustee shall resign,  be removed or become  incapable of
acting  as Issuer  Trustee,  or if a vacancy  shall  occur in the  office of any
Issuer Trustee for any cause, at a time when no Debenture Event of Default shall
have occurred and be  continuing,  the Holder of the Common  Securities,  by Act
delivered to the retiring  Issuer  Trustee,  shall promptly  appoint a successor
Issuer  Trustee or Issuer  Trustees,  and such  successor  Issuer  Trustee shall
comply with the applicable requirements of Section 8.11. If the Property Trustee
or the  Delaware  Trustee  shall  resign,  be  removed  or become  incapable  of
continuing to act as the Property Trustee or the Delaware  Trustee,  as the case
may be, at a time when a Debenture  Event of Default  shall have occurred and be
continuing,  the  Holders  of  Capital  Securities,  by Act of the  Holders of a
Majority  in  Liquidation  Amount of the  Capital  Securities  delivered  to the
retiring Relevant Trustee,  shall promptly appoint a successor  Relevant Trustee
or Trustees,  and such successor Issuer Trustee shall comply with the applicable
requirements of Section 8.11. If an


                                                        48

<PAGE>



Administrative Trustee shall resign, be removed or become incapable of acting as
Administrative  Trustee,  at a time when a Debenture Event of Default shall have
occurred and be continuing, the Holder of the Common Securities by Act delivered
to the Administrative Trustee shall promptly appoint a successor  Administrative
Trustee or Administrative Trustees and such successor  Administrative Trustee or
Trustees  shall comply with the applicable  requirements  of Section 8.11. If no
successor  Relevant  Trustee  shall have been so  appointed by the Holder of the
Common  Securities  or the  Holders of a Majority in  Liquidation  Amount of the
Capital Securities,  as the case may be, and accepted  appointment in the manner
required by Section 8.11,  any Holder who has been a Holder of Trust  Securities
for at least six months may,  on behalf of such Holder and all others  similarly
situated,  or any other  Issuer  Trustee,  may  petition  any court of competent
jurisdiction for the appointment of a successor Relevant Trustee.

         The Property  Trustee  shall give notice of each  resignation  and each
removal of an Issuer Trustee and each  appointment of a successor Issuer Trustee
to all Holders in the manner  provided in Section  10.8 and shall give notice to
the  Depositor.  Each notice shall  include the name of the  successor  Relevant
Trustee  and the address of its  Corporate  Trust  Office if it is the  Property
Trustee.

         Notwithstanding  the  foregoing  or any other  provision  of this Trust
Agreement,  if any Delaware Trustee who is a natural person dies or becomes,  in
the opinion of the Depositor,  incompetent or incapacitated, the vacancy created
by such death, incompetence or incapacity may be filled by (a) the unanimous act
of the  remaining  Administrative  Trustees if there are at least two of them or
(b) otherwise by the Depositor (with the successor in either case being a Person
who satisfies the eligibility  requirement for the Delaware Trustee set forth in
Section 8.7).

         SECTION 8.11. Acceptance of Appointment by Successor.

         In case of the appointment  hereunder of a successor  Relevant Trustee,
the retiring  Relevant Trustee and each successor  Relevant Trustee with respect
to the Trust  Securities  shall execute and deliver an amendment  hereto wherein
each  successor  Relevant  Trustee shall accept such  appointment  and which (a)
shall contain such provisions as shall be necessary or desirable to transfer and
confirm  to, and to vest in,  each  successor  Relevant  Trustee all the rights,
powers,  trusts and duties of the retiring  Relevant Trustee with respect to the
Trust Securities and the Issuer Trust, and (b) shall add to or change any of the
provisions  of this Trust  Agreement  as shall be  necessary  to provide  for or
facilitate  the  administration  of the Issuer  Trust by more than one  Relevant
Trustee,  it being  understood  that nothing herein or in such  amendment  shall
constitute  such  Relevant  Trustees  co-trustees  and  upon the  execution  and
delivery of such amendment the  resignation or removal of the retiring  Relevant
Trustee  shall  become  effective to the extent  provided  therein and each such
successor Relevant Trustee,  without any further act, deed or conveyance,  shall
become  vested with all the rights,  powers,  trusts and duties of the  retiring
Relevant Trustee;  but, on request of the Issuer Trust or any successor Relevant
Trustee such retiring  Relevant Trustee shall duly assign,  transfer and deliver
to such successor Relevant


                                                        49

<PAGE>



Trustee all Trust Property, all proceeds thereof and money held by such retiring
Relevant  Trustee  hereunder with respect to the Trust Securities and the Issuer
Trust.

         Upon  request of any  Issuer  Trustee  or any such  successor  Relevant
Trustee,  the retiring Relevant Trustee or the Issuer Trust, as the case may be,
shall execute any and all  instruments  for more fully and certainly  vesting in
and confirming to such successor  Relevant  Trustee all such rights,  powers and
trusts referred to in the first or second preceding  paragraph,  as the case may
be.

         No successor  Relevant  Trustee shall accept its appointment  unless at
the time of such acceptance such successor  Relevant  Trustee shall be qualified
and eligible under this Article.

     SECTION 8.12. Merger, Conversion, Consolidation or Succession to Business.

         Any Person into which the Property  Trustee or the Delaware Trustee may
be merged or  converted  or with  which it may be  consolidated,  or any  Person
resulting from any merger,  conversion or  consolidation  to which such Relevant
Trustee shall be a party, or any Person,  succeeding to all or substantially all
the corporate trust business of such Relevant Trustee, shall be the successor of
such Relevant  Trustee  hereunder,  provided that such Person shall be otherwise
qualified and eligible  under this  Article,  without the execution or filing of
any paper or any further act on the part of any of the parties hereto.

     SECTION 8.13. Preferential Collection of Claims Against Depositor or Issuer
Trust.

         If and when the Property  Trustee  shall be or become a creditor of the
Depositor  or  the  Issuer  Trust  (or  any  other   obligor  upon  the  Capital
Securities),  the Property  Trustee  shall be subject to the  provisions  of the
Trust  Indenture Act regarding the collection of claims against the Depositor or
the Issuer Trust (or any such other obligor).

         SECTION 8.14. Property Trustee May File Proofs of Claim.

         In  case  of any  receivership,  insolvency,  liquidation,  bankruptcy,
reorganization,  arrangement,  adjustment, composition or other similar judicial
proceeding  relative  to the Issuer  Trust or any other  obligor  upon the Trust
Securities or the property of the Issuer Trust or of such other obligor or their
creditors,  the Property Trustee  (irrespective of whether any  Distributions on
the Trust  Securities  shall then be due and payable and irrespective of whether
the  Property  Trustee  shall have made any  demand on the Issuer  Trust for the
payment of any past due Distributions)  shall be entitled and empowered,  to the
fullest  extent  permitted  by  law,  by  intervention  in  such  proceeding  or
otherwise:

         (a) to file and prove a claim for the whole amount of any Distributions
owing and  unpaid in  respect  of the Trust  Securities  and to file such  other
papers or documents as may be necessary or advisable in order to have the claims
of the Property Trustee (including any claim for the


                                                        50

<PAGE>



reasonable  compensation,  expenses,  disbursements and advances of the Property
Trustee,  its agents and  counsel) and of the Holders  allowed in such  judicial
proceeding, and

         (b) to collect  and  receive  any moneys or other  property  payable or
deliverable on any such claims and to distribute the same;

and any custodian,  receiver,  assignee,  trustee,  liquidator,  sequestrator or
other similar official in any such judicial  proceeding is hereby  authorized by
each Holder to make such payments to the Property  Trustee and, in the event the
Property  Trustee shall  consent to the making of such payments  directly to the
Holders,  to pay to the  Property  Trustee any amount due it for the  reasonable
compensation,  expenses, disbursements and advances of the Property Trustee, its
agents and counsel, and any other amounts due the Property Trustee.

         Nothing  herein  contained  shall be deemed to  authorize  the Property
Trustee  to  authorize  or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement adjustment or compensation affecting the
Trust  Securities  or the  rights of any  Holder  thereof  or to  authorize  the
Property  Trustee  to vote in  respect  of the  claim of any  Holder in any such
proceeding.

         SECTION 8.15. Reports by Property Trustee.

         (a) Not later  than 60 days  following  May 15 of each year  commencing
with May 15,  1998,  the  Property  Trustee  shall  transmit  to all  Holders in
accordance  with Section 10.8, and to the Depositor,  a brief report dated as of
the immediately preceding December 31 with respect to:

                  (i) its eligibility under Section 8.7 or, in lieu thereof,  if
         to the best of its knowledge it has continued to be eligible under said
         Section, a written statement to such effect;

                  (ii) a statement  that the Property  Trustee has complied with
         all  of  its  obligations   under  this  Trust  Agreement   during  the
         twelve-month  period (or, in the case of the initial report, the period
         since the Closing  Date)  ending  with such May 15 or, if the  Property
         Trustee has not complied in any material respect with such obligations,
         a description of such noncompliance; and

                  (iii) any change in the property  and funds in its  possession
         as  Property  Trustee  since the date of its last report and any action
         taken  by the  Property  Trustee  in  the  performance  of  its  duties
         hereunder which it has not previously reported and which in its opinion
         materially affects the Trust Securities.

         (b) In addition the  Property  Trustee  shall  transmit to Holders such
reports  concerning  the  Property  Trustee  and its  actions  under  this Trust
Agreement as may be required  pursuant to the Trust  Indenture  Act at the times
and in the manner provided pursuant thereto.


                                                        51

<PAGE>




         (c) A copy of each such report shall, at the time of such  transmission
to Holders,  be filed by the Property Trustee with each national stock exchange,
the  Nasdaq  National  Market  or such  other  interdealer  quotation  system or
self-regulatory  organization  upon  which the Trust  Securities  are  listed or
traded, with the Commission and with the Depositor.

         SECTION 8.16. Reports to the Property Trustee.

         Each of the Depositor and the Administrative  Trustees on behalf of the
Issuer Trust shall provide to the Property  Trustee such documents,  reports and
information  as required by Section 314 of the Trust  Indenture Act (if any) and
the compliance certificate required by Section 314(a) of the Trust Indenture Act
in the form, in the manner and at the times required by Section 314 of the Trust
Indenture  Act. The Depositor and the  Administrative  Trustees on behalf of the
Issuer  Trust  shall  annually  file with the  Property  Trustee  a  certificate
specifying  whether  such  Person  is in  compliance  with all of the  terms and
covenants applicable to such Person hereunder.

         SECTION 8.17. Evidence of Compliance with Conditions Precedent.

         Each of the Depositor and the Administrative  Trustees on behalf of the
Issuer Trust shall  provide to the Property  Trustee such evidence of compliance
with any conditions precedent, if any, provided for in this Trust Agreement that
relate to any of the matters set forth in Section 314(c) of the Trust  Indenture
Act. Any certificate or opinion  required to be given by an officer  pursuant to
Section  314(c)(1) of the Trust  Indenture  Act shall be given in the form of an
Officers' Certificate.

         SECTION 8.18. Number of Issuer Trustees.

         (a) The initial number of Issuer Trustees shall be five,  provided that
the  Property  Trustee  and the  Delaware  Trustee may be the same Person if the
Property Trustee satisfies the applicable requirements.

         (b) If an  Issuer  Trustee  ceases to hold  office  for any  reason,  a
vacancy  shall  occur.  The  vacancy  shall be  filled  with an  Issuer  Trustee
appointed in accordance with Section 8.10.

         (c)  The   death,   resignation,   retirement,   removal,   bankruptcy,
incompetence  or incapacity to perform the duties of an Issuer Trustee shall not
operate to annul, dissolve or terminate the Issuer Trust.

         SECTION 8.19. Delegation of Power.

         (a) Any Administrative  Trustee,  by power of attorney  consistent with
applicable  law,  delegate to any other  natural  person over the age of 21 such
Administrative  Trustee's  power for the  purpose  of  executing  any  documents
contemplated in Section 2.7(a), including any


                                                        52

<PAGE>



registration statement or amendment thereto filed with the Commission, or making
any other governmental filing; and

         (b) The Administrative  Trustees shall have power to delegate from time
to time to such of their number or to the Depositor the doing of such things and
the execution of such instruments  either in the name of the Issuer Trust or the
names of the Administrative Trustees or otherwise as the Administrative Trustees
may  deem  expedient,  to  the  extent  such  delegation  is not  prohibited  by
applicable law or contrary to the provisions of this Trust Agreement.

         SECTION 8.20. Appointment of Administrative Trustees.

         (a) The  Administrative  Trustees  shall  initially  be Saul L.  Basch,
Roberta O'Brien and Robert C. Walker, and their successors shall be appointed by
the Holder of all the Common Securities.  The Administrative Trustees may resign
or be removed by the Holder of all the Common  Securities at any time.  Upon any
resignation or removal of an Administrative Trustee, the Depositor shall appoint
a successor  Administrative  Trustee.  If at any time there is no Administrative
Trustee,  the  Property  Trustee  or any  Holder  who has been a Holder of Trust
Securities  for at  least  six  months  may  petition  any  court  of  competent
jurisdiction for the appointment of one or more Administrative Trustees.

         (b) Whenever a vacancy in the number of  Administrative  Trustees shall
occur,  until such  vacancy is filled by the  appointment  of an  Administrative
Trustee in accordance  with this Section 8.20,  the  Administrative  Trustees in
office,  regardless of their number (and  notwithstanding any other provision of
this  Agreement),  shall  have  all the  powers  granted  to the  Administrative
Trustees and shall  discharge  all the duties  imposed  upon the  Administrative
Trustees by this Trust Agreement.

         (c)  Notwithstanding the foregoing or any other provision of this Trust
Agreement,  if any  Administrative  Trustee  who is a  natural  person  dies  or
becomes, in the opinion of the Holder of all the Common Securities,  incompetent
or incapacitated,  the vacancy created by such death, incompetence or incapacity
may be filled by the unanimous act of the remaining  Administrative Trustees, if
there were at least two of them prior to such vacancy, and by the Depositor,  if
there  were  not two  such  Administrative  Trustees  immediately  prior to such
vacancy  (with  the  successor  being a Person  who  satisfies  the  eligibility
requirement for Administrative Trustees set forth in Section 8.7).


                                   ARTICLE IX

                       DISSOLUTION, LIQUIDATION AND MERGER

         SECTION 9.1. Dissolution Upon Expiration Date.



                                                        53

<PAGE>



         Unless earlier dissolved, the Issuer Trust shall automatically dissolve
on December 31, 2017 (the "Expiration Date"), and shall thereafter be terminated
by filing a Certificate of Cancellation with the Secretary of State of the State
of Delaware, following the distribution of the Trust Property in accordance with
Section 9.4.

         SECTION 9.2. Early Dissolution.

         The  first  to  occur  of any  of the  following  events  is an  "Early
Termination Event" upon the occurrence of which the Trust shall be dissolved:

         (a) the  occurrence  of a  Bankruptcy  Event  in  respect  of,  or the
dissolution or liquidation of, the Holder of all the Common Securities;

         (b) the written  direction to the  Property  Trustee from the Holder of
all the  Common  Securities  at any time to  dissolve  the  Issuer  Trust and to
distribute  the  Debentures  to Holders in exchange  for the Capital  Securities
(which  direction is optional and wholly within the  discretion of the Holder of
all the Common Securities);

         (c) the  redemption or  conversion of all of the Capital  Securities in
connection with the redemption or conversion of all the Debentures; and

         (d) the  entry of an order for  dissolution  of the  Issuer  Trust by a
court of competent jurisdiction.

         SECTION 9.3. Termination.

         The respective  obligations and responsibilities of the Issuer Trustees
and the Issuer  Trust  created and  continued  hereby shall  terminate  upon the
latest to occur of the following:  (a) the  distribution by the Property Trustee
to  Holders  of all  amounts  required  to be  distributed  hereunder  upon  the
liquidation  of the Issuer Trust pursuant to Section 9.4, or upon the redemption
of all of the Trust  Securities  pursuant to Section 4.2; (b) the payment of any
expenses owed by the Issuer Trust;  and (c) the discharge of all  administrative
duties of the  Administrative  Trustees,  including the  performance  of any tax
reporting obligations with respect to the Issuer Trust or the Holders.

         SECTION 9.4. Liquidation.

         (a) If an Early  Termination  Event specified in clause (a), (b) or (d)
of Section 9.2 occurs or upon the  Expiration  Date,  the Issuer  Trust shall be
liquidated  by the Issuer  Trustees  as  expeditiously  as the  Issuer  Trustees
determine to be possible by distributing,  after  satisfaction of liabilities to
creditors  of the Issuer  Trust as provided by Section  3808(e) of the  Delaware
Business Trust Act and any other applicable law, to each Holder a Like Amount of
Debentures,  subject to Section 9.4(d).  Notice of liquidation shall be given by
the Property Trustee by first-class  mail,  postage prepaid mailed not less than
30 nor more than 60 days prior to the


                                                        54

<PAGE>



Liquidation  Date to each Holder of Trust  Securities at such  Holder's  address
appearing in the Securities Register. All such notices of liquidation shall:

                  (i)  state the Liquidation Date;

                  (ii) state that from and after the Liquidation Date, the Trust
         Securities  will no longer be  deemed to be  Outstanding  and any Trust
         Securities  Certificates not surrendered for exchange will be deemed to
         represent a Like Amount of Debentures; and

                  (iii) provide such  information  with respect to the mechanics
         by  which  Holders  may  exchange  Trust  Securities  Certificates  for
         Debentures,   or  if  Section  9.4(d)  applies  receive  a  Liquidation
         Distribution,  as the Property Trustee and the Administrative  Trustees
         shall deem appropriate.

         (b) Except where Section 9.2(c) or 9.4(d)  applies,  in order to effect
the  liquidation  of the Issuer  Trust and  distribution  of the  Debentures  to
Holders, the Property Trustee, either itself acting as exchange agent or through
the appointment of a separate exchange agent,  shall establish a record date for
such distribution (which shall be not more than 45 days prior to the Liquidation
Date) and establish such  procedures as it shall deem  appropriate to effect the
distribution  of Debentures  in exchange for the  Outstanding  Trust  Securities
Certificates.

         (c)  Except  where  Section  9.2(c)  or  9.4(d)   applies,   after  the
Liquidation  Date,  (i) the  Trust  Securities  will no  longer  be deemed to be
Outstanding,  (ii) certificates representing a Like Amount of Debentures will be
issued to Holders of Trust Securities Certificates, upon surrender of such Trust
Securities  Certificates  to the exchange  agent for  exchange,  (iii) any Trust
Securities  Certificates  not so  surrendered  for  exchange  will be  deemed to
represent a Like Amount of Debentures  bearing accrued and unpaid interest in an
amount  equal  to  the  accumulated  and  unpaid  Distributions  on  such  Trust
Securities  Certificates  until such  certificates are so surrendered (and until
such certificates are so surrendered,  no payments of interest or principal will
be made to  Holders  of  Trust  Securities  Certificates  with  respect  to such
Debentures), and (iv) all rights of Holders holding Trust Securities will cease,
except the right of such Holders to receive  Debentures  upon surrender of Trust
Securities Certificates.

         (d) If,  upon  dissolution  of the  Trust,  notwithstanding  the  other
provisions  of this Section  9.4,  whether  because of an order for  dissolution
entered by a court of competent  jurisdiction or otherwise,  distribution of the
Debentures in the manner provided  herein is determined by the Property  Trustee
not to be practical, or if an Early Termination Event specified in clause (c) of
Section 9.2 occurs,  the Trust  Property  shall be  liquidated  by the  Property
Trustee in such manner as the Property  Trustee  determines.  In such event,  in
connection with the winding-up of the Issuer Trust,  Holders will be entitled to
receive out of the assets of the Issuer  Trust  available  for  distribution  to
Holders,  after  satisfaction of liabilities to creditors of the Issuer Trust as
provided  by  Section  3808(e)  of the  Delaware  Business  Trust  Act and other
applicable  law, an amount equal to the  Liquidation  Amount per Trust  Security
plus accumulated and unpaid  Distributions  thereon to the date of payment (such
amount being the


                                                        55

<PAGE>



"Liquidation  Distribution").  If,  upon any such  winding  up, the  Liquidation
Distribution  can be paid only in part because the Issuer Trust has insufficient
assets available to pay in full the aggregate  Liquidation  Distribution,  then,
subject to the next succeeding sentence, the amounts payable by the Issuer Trust
on  the  Trust  Securities  shall  be  paid  on a pro  rata  basis  (based  upon
Liquidation  Amounts).  The Holder of all the Common Securities will be entitled
to  receive  Liquidation   Distributions  upon  any  such  winding-up  pro  rata
(determined as aforesaid) with Holders of Capital Securities,  except that, if a
Debenture  Event of  Default  specified  in  Section  5.1(1)  or  5.1(2)  of the
Indenture has occurred and is continuing,  the Capital  Securities  shall have a
priority over the Common Securities as provided in Section 4.4.

     SECTION 9.5.  Mergers,  Consolidations,  Amalgamations  or  Replacements of
Issuer Trust.

         The Issuer Trust may not merge with or into,  consolidate,  amalgamate,
or be  replaced  by, or  convey,  transfer  or lease its  properties  and assets
substantially  as an entirety to any corporation or other body,  except pursuant
to this  Section  9.5. The Issuer Trust may, at the request of the Holder of all
the Common Securities and, with the consent of the Administrative  Trustees, but
without the  consent of the Holders of the  Outstanding  Trust  Securities,  the
Property  Trustee or the  Delaware  Trustee,  merge  with or into,  consolidate,
amalgamate,  or be replaced by or convey,  transfer or lease its  properties and
assets  substantially as an entirety to a trust organized as such under the laws
of any State;  provided,  that (i) such  successor  entity  either (a) expressly
assumes all of the  obligations  of the Issuer Trust with respect to the Capital
Securities,  or (b)  substitutes  for the Capital  Securities  other  securities
having  substantially  the same terms as the Capital  Securities (the "Successor
Securities")  so long as the Successor  Securities have the same priority as the
Capital  Securities with respect to distributions and payments upon liquidation,
redemption and otherwise, (ii) a trustee of such successor entity possessing the
same  powers  and  duties  as the  Property  Trustee  is  appointed  to hold the
Debentures,  (iii)  such  merger,  consolidation,   amalgamation,   replacement,
conveyance,  transfer or lease does not cause the Capital Securities  (including
any  Successor  Securities)  to  be  downgraded  by  any  nationally  recognized
statistical  rating  organization  that then  assigns  a rating  to the  Capital
Securities,  (iv)  such  merger,   consolidation,   amalgamation,   replacement,
conveyance,  transfer or lease does not adversely affect the rights, preferences
and privileges of the holders of the Capital Securities (including any Successor
Securities) in any material  respect,  (v) such  successor  entity has a purpose
substantially  identical to that of the Issuer Trust, (vi) prior to such merger,
consolidation,  amalgamation,  replacement,  conveyance,  transfer or lease, the
Issuer Trust has received an opinion from  independent  counsel  experienced  in
such  matters to the effect that (a) such merger,  consolidation,  amalgamation,
replacement, conveyance, transfer or lease does not adversely affect the rights,
preferences and privileges of the Holders of the Capital  Securities  (including
any  Successor  Securities)  in any material  respect,  and (b)  following  such
merger, consolidation, amalgamation, replacement, conveyance, transfer or lease,
neither the Issuer Trust nor such successor  entity will be required to register
as an  "investment  company"  under the  Investment  Company  Act, and (vii) the
Depositor  or its  permitted  successor  or  transferee  owns all of the  common
securities of such  successor  entity and  guarantees  the  obligations  of such
successor entity under the Successor  Securities at least to the extent provided
by the Guarantee Agreement. Notwithstanding the foregoing, the Issuer Trust


                                                        56

<PAGE>



shall not, except with the consent of holders of all of the Capital  Securities,
consolidate,  amalgamate,  merge  with or into,  or be  replaced  by or  convey,
transfer or lease its properties and assets  substantially as an entirety to any
other entity or permit any other entity to consolidate,  amalgamate,  merge with
or into, or replace it if such consolidation, amalgamation, merger, replacement,
conveyance,  transfer  or lease would  cause the Issuer  Trust or the  successor
entity to be  taxable as a  corporation  or  classified  as other than a grantor
trust for United States Federal income tax purposes.


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

         SECTION 10.1. Limitation of Rights of Holders.

         Except as set forth in Section 9.2, the death, incapacity, dissolution,
termination  or  bankruptcy  of any Person  having an  interest,  beneficial  or
otherwise, in Trust Securities shall not operate to annul, dissolve or terminate
this Trust Agreement, nor entitle the legal representatives, successors or heirs
of such Person or any Holder for such person,  to claim an accounting,  take any
action or bring any proceeding in any court for a partition or winding up of the
arrangements  contemplated hereby, nor otherwise affect the rights,  obligations
and liabilities of the parties hereto or any of them.

         SECTION 10.2. Amendment.

         (a)  This  Trust  Agreement  may be  amended  from  time to time by the
Property  Trustee,  the  Administrative  Trustees  and the  Holder of the Common
Securities,  without  the consent of the  Delaware  Trustee or any Holder of the
Capital  Securities,  (i) to cure  any  ambiguity,  correct  or  supplement  any
provision herein that may be inconsistent with any other provision herein, or to
make any other  provisions  with respect to matters or questions  arising  under
this Trust Agreement,  which shall not be inconsistent with the other provisions
of this Trust Agreement,  or (ii) to modify,  eliminate or add to any provisions
of this Trust  Agreement to such extent as shall be necessary to ensure that the
Issuer Trust will not be taxable as a  corporation  or will be  classified  as a
grantor  trust for United States  Federal  income tax purposes at all times that
any Trust Securities are Outstanding or to ensure that the Issuer Trust will not
be required to register as an "investment  company" under the Investment Company
Act;  provided,  however,  that in either case (i) or (ii) such action shall not
adversely  affect in any material  respect the interests of the Delaware Trustee
or any Holder.

         (b) Except as provided in Section 10.2(c) hereof, any provision of this
Trust  Agreement  may be amended by the  Property  Trustee,  the  Administrative
Trustees  and the Holder of the Common  Securities,  without  the consent of the
Delaware Trustee,  and with (i) the consent of Holders of at least a Majority in
Liquidation  Amount of the Capital  Securities,  and (ii)  receipt by the Issuer
Trustees of an Opinion of Counsel to the effect that such amendment or the


                                                        57

<PAGE>



exercise of any power  granted to the Issuer  Trustees in  accordance  with such
amendment  will not cause the Issuer Trust to be taxable as a corporation  or as
other than a grantor  trust for United  States  Federal  income tax  purposes or
affect the Issuer Trust's exemption from status as an "investment company" under
the Investment Company Act.

         (c) In  addition to and  notwithstanding  any other  provision  in this
Trust  Agreement,  without  the  consent  of each  affected  Holder,  this Trust
Agreement  may  not be  amended  to (i)  change  the  amount  or  timing  of any
Distribution on the Trust Securities or otherwise adversely affect the amount of
any Distribution  required to be made in respect of the Trust Securities as of a
specified date, or (ii) restrict the right of a Holder to institute suit for the
enforcement of any such payment on or after such date; and  notwithstanding  any
other  provision  herein,  without the  unanimous  consent of the Holders,  this
paragraph (c) of this Section 10.2 may not be amended.

         (d)  Notwithstanding  any other provisions of this Trust Agreement,  no
Issuer  Trustee  shall  enter  into or consent  to any  amendment  to this Trust
Agreement  that would cause the Issuer Trust to fail or cease to qualify for the
exemption  from status as an "investment  company" under the Investment  Company
Act or to be  taxable  as a  corporation  or to be  classified  as other  than a
grantor trust for United States Federal income tax purposes.

         (e)  Notwithstanding  anything in this Trust Agreement to the contrary,
(i) without the consent of the Depositor and the Administrative  Trustees,  this
Trust  Agreement  may not be amended in a manner  that  imposes  any  additional
obligation on the Depositor or the Administrative Trustees, and (ii) without the
consent of the Delaware  Trustee,  this Trust  Agreement may not be amended in a
manner that imposes any additional obligation on the Delaware Trustee.

         (f) In the event that any  amendment  to this Trust  Agreement is made,
the  Administrative  Trustees or the Property  Trustee shall promptly provide to
the Depositor a copy of such amendment.

         (g) Neither the  Property  Trustee nor the  Delaware  Trustee  shall be
required to enter into any  amendment to this Trust  Agreement  that affects its
own  rights,  duties or  immunities  under this Trust  Agreement.  The  Property
Trustee  shall be  entitled  to receive an Opinion of Counsel  and an  Officers'
Certificate  stating that any amendment to this Trust Agreement is in compliance
with this Trust Agreement.

         SECTION 10.3. Separability.

         In  case  any  provision  in  this  Trust  Agreement  or in  the  Trust
Securities  Certificates  shall  be  invalid,  illegal  or  unenforceable,   the
validity,  legality and enforceability of the remaining  provisions shall not in
any way be affected or impaired thereby.



                                                        58

<PAGE>



         SECTION 10.4. Governing Law.

         THIS TRUST  AGREEMENT  AND THE RIGHTS  AND  OBLIGATIONS  OF EACH OF THE
HOLDERS, THE ISSUER TRUST, THE DEPOSITOR AND THE ISSUER TRUSTEES WITH RESPECT TO
THIS TRUST AGREEMENT AND THE TRUST  SECURITIES  SHALL BE CONSTRUED IN ACCORDANCE
WITH AND GOVERNED BY THE LAWS OF THE STATE OF DELAWARE WITHOUT  REFERENCE TO ITS
CONFLICT OF LAW  PROVISIONS.  THE  PROVISIONS OF SECTION 3540 OF TITLE 12 OF THE
DELAWARE CODE SHALL NOT APPLY TO THIS TRUST.

         To the fullest  extent  permitted by Delaware  law,  there shall not be
applicable to the Issuer Trust,  the Issuer Trustees or this Trust Agreement any
provisions  of law  (whether  statutory  or  common)  of the  State of  Delaware
pertaining to trusts (other than the Delaware Business Trust Act) that relate to
or regulate in a manner  inconsistent  with the terms hereof (a) the filing with
any court or  governmental  body or agent of trustee  accounts or  schedules  of
trustee  fees and  charges,  (b)  affirmative  requirements  to post  bonds  for
trustees, officers, agents or employees of a trust, (c) the acquisition, holding
or disposition of any property,  (d) the allocation of receipts and expenditures
between income and principal,  (e) restrictions or limitation on the permissible
nature,  amount or concentration of trust investment or requirements relating to
the titling,  storage or other manner of holding or investing  trust assets,  or
(f) the  establishment  of fiduciary or other  standards  of  responsibility  or
limitations  on the acts or powers of trustees  that are  inconsistent  (whether
more or less restrictive) with this provision.

         SECTION 10.5. Payments Due on Non-Business Day.

         If the date fixed for any payment on any Trust  Security shall be a day
that is not a Business  Day, then such payment need not be made on such date but
may be made on the  next  succeeding  day  that is a  Business  Day  (except  as
otherwise  provided  in  Sections  4.1(a) and  4.2(d)),  with the same force and
effect as though made on the date fixed for such payment,  and no  Distributions
shall accumulate on such unpaid amount for the period after such date.

         SECTION 10.6. Successors.

         This  Trust  Agreement  shall be  binding  upon and shall  inure to the
benefit of any  successor  to the  Depositor,  the  Issuer  Trust and any Issuer
Trustee,  including any successor by operation of law. Except in connection with
a consolidation,  merger or sale involving the Depositor that is permitted under
Article  VIII of the  Indenture  and  pursuant to which the  assignee  agrees in
writing to perform the Depositor's  obligations  hereunder,  the Depositor shall
not assign its obligations hereunder.



                                                        59

<PAGE>



         SECTION 10.7. Headings.

         The Article and Section headings are for convenience only and shall not
affect the construction of this Trust Agreement.

         SECTION 10.8. Reports, Notices and Demands.

         (a) Any  report,  notice,  demand  or other  communication  that by any
provision of this Trust Agreement is required or permitted to be given or served
to or upon any  Holder or the  Depositor  may be given or served in  writing  by
deposit thereof,  first-class  postage prepaid,  in the United States mail, hand
delivery or facsimile transmission,  in each case, addressed, (a) in the case of
a Holder of Capital Securities, to such Holder as such Holder's name and address
may appear on the Securities Register;  and (b) in the case of the Holder of the
Common  Securities  or the  Depositor,  to HSB Group,  Inc.,  One State  Street,
Hartford,  Connecticut 06102,  Attention:  Corporate  Secretary,  facsimile no.:
(860) 493-1038, or to such other address as may be specified in a written notice
by the Holder of the Common Securities or the Depositor,  as the case may be, to
the Property Trustee.  Such notice,  demand or other  communication to or upon a
Holder  shall be  deemed  to have  been  sufficiently  given  or  made,  for all
purposes,  upon hand delivery,  mailing or transmission.  Such notice, demand or
other  communication  to or upon the  Depositor  shall be  deemed  to have  been
sufficiently  given or made only  upon  actual  receipt  of the  writing  by the
Depositor.

         (b) Any notice,  demand or other communication that by any provision of
this Trust  Agreement  is required or permitted to be given or served to or upon
the  Issuer  Trust or any  Issuer  Trustee  may be given or served in writing by
deposit thereof,  first-class  postage prepaid,  in the United States mail, hand
delivery or facsimile transmission,  in each case, addressed, (a) in the case of
the Property  Trustee to The First National Bank of Chicago,  One First National
Plaza, Suite 0126,  Chicago,  Illinois  60670-0126,  Attention:  Corporate Trust
Services Division;  (b) with respect to the Delaware Trustee,  Attention:  First
Chicago Delaware Inc., 300 King Street,  Wilmington,  Delaware 19801, Attention:
Michael J. Majchrzak; (c) in the case of the Administrative Trustees, to them at
the  address   above  for   notices  to  the   Depositor,   marked   "Attention:
Administrative  Trustees of HSB Capital  II";  and (d) in the case of the Issuer
Trust, to its principal  executive  office specified in Section 2.2, with a copy
to each of the Property  Trustee,  the Delaware  Trustee and the  Administrative
Trustees,  or, in each such case, to such other address as may be specified in a
written notice by the applicable Person to the Property  Trustee,  the Depositor
and the  Holders.  Such  notice,  demand or other  communication  to or upon the
Property  Trustee,  the Delaware  Trustee,  the  Administrative  Trustees or the
Issuer Trust shall be deemed to have been  sufficiently  given or made only upon
actual  receipt of the writing by the Property  Trustee,  the Delaware  Trustee,
such Administrative Trustees or the Issuer Trust, as the case may be.



                                                        60

<PAGE>



         SECTION 10.9. Agreement Not to Petition.

         Each of the Issuer  Trustees and the Depositor agree for the benefit of
the Holders that, until at least one year and one day after the Issuer Trust has
been  terminated in accordance  with Article IX, they shall not file, or join in
the  filing of, a  petition  against  the  Issuer  Trust  under any  bankruptcy,
insolvency,  reorganization  or other similar law  (including  the United States
Bankruptcy  Code)  (collectively,  "Bankruptcy  Laws") or otherwise  join in the
commencement  of any  proceeding  against the Issuer Trust under any  Bankruptcy
Law. The Property  Trustee and the Depositor  agree, for the benefit of Holders,
that if the  Depositor or any Issuer  Trustee  takes action in violation of this
Section  10.9,  then at the expense of the  Depositor,  the Property  Trustee or
Depositor, as the case may be, shall file an answer with the bankruptcy court or
otherwise  properly contest the filing of such petition by the Depositor against
the Issuer Trust or the  commencement  of such action and raise the defense that
the  Depositor  has  agreed in  writing  not to take such  action  and should be
estopped and precluded therefrom and such other defenses, if any, as counsel for
the Issuer Trustees or the Issuer Trust may assert.

         SECTION 10.10. Trust Indenture Act; Conflict with Trust Indenture Act.

         (a) This Trust  Agreement  is subject  to the  provisions  of the Trust
Indenture  Act that are  required  or deemed to be part of this Trust  Agreement
pursuant to the terms herein and shall, to the extent applicable, be governed by
such provisions.

         (b) The Property  Trustee  shall be the only Issuer  Trustee which is a
trustee for the purposes of the Trust Indenture Act.

         (c) If any provision hereof limits, qualifies or conflicts with another
provision  hereof  which is  required  or deemed to be  included  in this  Trust
Agreement by any of the provisions of the Trust  Indenture Act, such required or
deemed  provision  shall  control.  If any  provision  of this  Trust  Agreement
modifies or excludes any  provision of the Trust  Indenture  Act which may be so
modified  or  excluded,  the latter  provision  shall be deemed to apply to this
Trust Agreement as so modified or excluded, as the case may be.

     SECTION 10.11. Acceptance of Terms of Trust Agreement,  Guarantee Agreement
and Indenture.

         THE RECEIPT AND ACCEPTANCE OF A TRUST SECURITY OR ANY INTEREST  THEREIN
BY OR ON BEHALF OF A HOLDER OR ANY  BENEFICIAL  OWNER,  WITHOUT ANY SIGNATURE OR
FURTHER  MANIFESTATION OF ASSENT, SHALL CONSTITUTE THE UNCONDITIONAL  ACCEPTANCE
BY THE HOLDER AND ALL OTHERS HAVING A BENEFICIAL INTEREST IN SUCH TRUST SECURITY
OF ALL THE TERMS AND PROVISIONS OF THIS TRUST AGREEMENT, THE GUARANTEE AGREEMENT
AND THE INDENTURE, AND AGREEMENT TO THE SUBORDINATION PROVISIONS AND OTHER TERMS
OF THE GUARANTEE AGREEMENT AND THE INDENTURE, AND SHALL CONSTITUTE THE AGREEMENT
OF THE ISSUER TRUST,


                                                        61

<PAGE>



SUCH  HOLDER  AND SUCH  OTHERS  THAT THE  TERMS  AND  PROVISIONS  OF THIS  TRUST
AGREEMENT SHALL BE BINDING,  OPERATIVE AND EFFECTIVE AS BETWEEN THE ISSUER TRUST
AND SUCH HOLDER AND SUCH OTHERS.

         This Trust  Agreement  may be executed  in any number of  counterparts,
each of which  so  executed  shall be  deemed  to be an  original,  but all such
counterparts shall together constitute but one and the same instrument.



                                                        62

<PAGE>



         IN  WITNESS  WHEREOF,  the  parties  hereto  have  executed  this Trust
Agreement as of the day and year first above written.

                                 HSB GROUP, INC.
                                  as Depositor


                                 By: /s/ Saul L. Basch
                                 Name:  Saul L. Basch
                                 Title: Senior Vice President, Treasurer and
                                        Chief Financial Officer


                                 The First National Bank of Chicago
                                 as Property Trustee


                                 By: /s/ Melissa G. Weisman
                                 Name:   Melissa G. Weisman
                                 Title:  Vice President


                                 First Chicago Delaware Inc.
                                 as Delaware Trustee

                                 By: /s/ Melissa G. Weisman
                                 Name:  Melissa G. Weisman
                                 Title: Vice President




<PAGE>




                                 HSB Capital II


                             By:  /s/ Saul L. Basch
                                  Name: Saul L. Basch
                                  as Administrative Trustee



                             By:  /s/ Roberta O'Brien
                                  Name:  Roberta O'Brien
                                  as Administrative Trustee



                             By:  /s/ Robert C. Walker
                                  Name:  Robert C. Walker
                                  as Administrative Trustee



                                                        64

<PAGE>

                                                                    Exhibit A

                                               CERTIFICATE OF TRUST
                                                 OF HSB CAPITAL II

                  This  Certificate  of Trust of HSB  Capital II (the  "Trust"),
dated  as of  December  31,  1997,  is  being  duly  executed  and  filed by the
undersigned,  as trustee,  to form a business trust under the Delaware  Business
Trust Act (12 Del. C. (S) 3801 et seq.).

               1. NAME.  The name of the business  trust being formed  hereby is
HSB Capital II.

                  2.  DELAWARE  TRUSTEE.  The name and  business  address of the
trustee of the Trust with a principal place of business in the State of Delaware
is: First Chicago Delaware Inc., 300 King Street, Wilmington, Delaware 19801.

                  3.  EFFECTIVE  DATE.  This   Certificate  of  Trust  shall  be
affective upon the filing of this Certificate of Trust.

                  IN WITNESS WHEREOF,  the undersigned trustee of the Trust, has
executed this Certificate of Trust as of the date first above written.



                              Name: Saul L. Basch
                              Title: Administrative Trustee



                              Name: Roberta O'Brien
                              Title: Administrative Trustee


                              Name:  Robert C. Walker
                              Title: Administrative Trustee


                              FIRST CHICAGO DELAWARE INC.,
                              as Delaware Trustee


                              By:
                              Name:  Melissa G. Weisman
                              Title: Vice President




                                                        A-1

<PAGE>




                                                              Exhibit B








                     [Form of Common Securities Certificate]

       THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT TO THE DEPOSITOR OR AN
        AFFILIATE OF THE DEPOSITOR IN COMPLIANCE WITH APPLICABLE LAW AND
                      SECTION 5.10 OF THE TRUST AGREEMENT.

Certificate Number                               Aggregate Liquidation Amount

       C-1                                               $9,300,000

                  Certificate Evidencing Common Securities

                                   of

                             HSB Capital II

                       Convertible Common Securities
            (liquidation amount $1,000 per Common Security)

         HSB Capital II, a statutory  business  trust  created under the laws of
the State of Delaware (the "Issuer  Trust"),  hereby  certifies  that HSB GROUP,
INC.  (the  "Holder") is the  registered  owner of Nine  Thousand  Three Hundred
(9,300)  common  securities  (aggregate  Liquidation  Amount Nine Million  Three
Hundred Thousand dollars  ($9,300,000) of the Issuer Trust  representing  common
undivided  beneficial interests in the assets of the Issuer Trust and designated
the  Convertible  Common  Securities   (liquidation  amount  $1,000  per  Common
Security) (the "Common  Securities").  Except in accordance with Section 5.10 of
the  Trust  Agreement  (as  defined  below),   the  Common  Securities  are  not
transferable  and  any  attempted  transfer  hereof  other  than  in  accordance
therewith shall be void. The  designations,  rights,  privileges,  restrictions,
preferences  and other terms and  provisions  of the Common  Securities  are set
forth in, and this certificate and the Common Securities  represented hereby are
issued and shall in all respects be subject to the terms and  provisions of, the
Trust Agreement of the Issuer Trust,  dated as of December 31, 1997, as the same
may be amended from time to time (the "Trust Agreement"), among HSB Group, Inc.,
a Delaware  corporation,  as Depositor,  The First National Bank of Chicago,  as
Property  Trustee,  First Chicago Delaware,  Inc., as Delaware Trustee,  and the
Administrative Trustees named therein, including the designation of the terms of
the Common Securities as set forth therein. The Issuer Trust will furnish a copy
of the Trust  Agreement to the Holder without charge upon written request to the
Issuer Trust at its principal place of business or registered office.

         Upon  receipt  of this  certificate,  the  Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

         Terms used but not defined  herein have the  meanings  set forth in the
Trust Agreement.



                                                        B-1

<PAGE>



         IN WITNESS WHEREOF,  one of the  Administrative  Trustees of the Issuer
Trust has executed this certificate this 31st day of December, 1997.


                                       HSB CAPITAL II



                                       By:
                                       Name:
                                       Administrative Trustee






         TRUSTEE'S CERTIFICATE OF AUTHENTICATION:

         This is one of the Securities referred to in the
         within-mentioned Trust Agreement


         THE FIRST NATIONAL BANK OF CHICAGO, as Property Trustee


         By:
               Name:
               Title:



<PAGE>



                                                                       Exhibit C









                                     [Form of Capital Securities Certificate]

         THE CAPITAL SECURITIES  EVIDENCED HEREBY, ANY CONVERTIBLE  SUBORDINATED
DEFERRABLE  INTEREST  DEBENTURES ISSUABLE HEREWITH AND THE COMMON STOCK ISSUABLE
UPON THEIR CONVERSION HAVE NOT BEEN REGISTERED UNDER THE U.S.  SECURITIES ACT OF
1933 (THE "SECURITIES ACT") AND MAY NOT BE OFFERED,  SOLD,  PLEDGED OR OTHERWISE
TRANSFERRED EXCEPT IN WHOLE OR IN PART (BUT IF IN PART, IN AMOUNTS NOT LESS THAN
$10,000,000 IN PRINCIPAL AMOUNT) AND ONLY IN COMPLIANCE WITH THE REQUIREMENTS OF
THE SECURITIES ACT OR PURSUANT TO AN APPLICABLE EXEMPTION THEREFROM.

         NO EMPLOYEE  BENEFIT OR OTHER PLAN  SUBJECT TO TITLE I OF THE  EMPLOYEE
RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF
THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE") (EACH, A "PLAN"),  NO
ENTITY WHOSE  UNDERLYING  ASSETS  INCLUDE  "PLAN ASSETS" BY REASON OF ANY PLAN'S
INVESTMENT IN THE ENTITY (A "PLAN ASSET ENTITY"),  AND NO PERSON INVESTING "PLAN
ASSETS" OF ANY PLAN, MAY ACQUIRE OR HOLD THIS CAPITAL SECURITIES  CERTIFICATE OR
ANY  INTEREST  HEREIN,  UNLESS  SUCH  PURCHASER  OR HOLDER IS  ELIGIBLE  FOR THE
EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION
CLASS  EXEMPTION  ("PTCE")  96-23,  95-60,  91-38,  90-1  OR  84-14  OR  ANOTHER
APPLICABLE  EXEMPTION  WITH RESPECT TO SUCH PURCHASE OR HOLDING AND, IN THE CASE
OF ANY  PURCHASER  OR HOLDER  RELYING ON ANY  EXEMPTION  OTHER THAN PTCE  96-23,
95-60,  91-38,  90-1 OR 84-14, HAS COMPLIED WITH ANY REQUEST BY THE DEPOSITOR OR
THE ISSUER TRUST FOR AN OPINION OF COUNSEL OR OTHER EVIDENCE WITH RESPECT TO THE
AVAILABILITY  OF SUCH  EXEMPTION.  ANY  PURCHASER  OR  HOLDER  OF  THIS  CAPITAL
SECURITIES CERTIFICATE OR ANY INTEREST HEREIN WILL BE DEEMED TO HAVE REPRESENTED
BY ITS  PURCHASE  AND HOLDING  HEREOF THAT IT EITHER (A) IS NOT A PLAN OR A PLAN
ASSET ENTITY AND IS NOT  PURCHASING  SUCH  SECURITIES ON BEHALF OF OR WITH "PLAN
ASSETS" OF ANY PLAN, OR (B) IS ELIGIBLE FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER
PTCE 96-23,  95-60,  91-38, 90-1 OR 84-14 OR ANOTHER  APPLICABLE  EXEMPTION WITH
RESPECT TO SUCH PURCHASE OR HOLDING.




                                                        C-1

<PAGE>



Certificate Number                              Aggregate Liquidation Amount

     P-___                                              $300,000,000


                    Certificate Evidencing Capital Securities

                                       of

                                 HSB Capital II

                         Convertible Capital Securities
                (liquidation amount $1,000 per Capital Security)


     HSB Capital II, a statutory  business  trust  created under the laws of the
State of Delaware (the "Issuer  Trust"),  hereby certifies that [Name of Holder]
(the  "Holder") is the  registered  owner of Three  Hundred  Thousand  (300,000)
capital securities  (aggregate  Liquidation Amount Three Hundred Million dollars
($300,000,000))  of  the  Issuer  Trust   representing  a  preferred   undivided
beneficial  interest  in the  assets  of the  Issuer  Trust and  designated  the
Convertible Capital Securities  (liquidation amount $1,000 per Capital Security)
(the "Capital Securities"). The Capital Securities are transferable on the books
and records of the Issuer  Trust,  in person or by a duly  authorized  attorney,
upon surrender of this certificate duly endorsed and in proper form for transfer
as provided  in Section  5.4 of the Trust  Agreement  (as  defined  below).  The
designations, rights, privileges, restrictions,  preferences and other terms and
provisions of the Capital  Securities are set forth in, and this certificate and
the Capital  Securities  represented hereby are issued and shall in all respects
be subject to the terms and  provisions  of, the Trust  Agreement  of the Issuer
Trust,  dated as of December 31,  1997,  as the same may be amended from time to
time (the "Trust Agreement"),  among HSB Group, Inc., a Delaware corporation, as
Depositor,  The First  National  Bank of  Chicago,  as Property  Trustee,  First
Chicago Delaware,  Inc., as Delaware Trustee,  and the  Administrative  Trustees
named therein,  including the designation of the terms of the Capital Securities
as set forth  therein.  The Holder is entitled to the benefits of the  Guarantee
Agreement,  dated as of December 31, 1997 (the "Guarantee  Agreement"),  entered
into by HSB Group,  Inc. and The First  National  Bank of Chicago,  as guarantee
trustee, to the extent provided therein. The Issuer Trust will furnish a copy of
the Trust  Agreement and the Guarantee  Agreement to the Holder  without  charge
upon written  request to the Issuer Trust at its principal  place of business or
registered office.

     Upon  receipt  of this  certificate,  the  Holder  is  bound  by the  Trust
Agreement and is entitled to the benefits thereunder.




                                                        C-2

<PAGE>



     IN WITNESS WHEREOF, one of the Administrative  Trustees of the Issuer Trust
has executed this certificate this 31st day of December, 1997.

                                       HSB CAPITAL II


                                       By:
                                       Name:
                                       Administrative Trustee






         TRUSTEE'S CERTIFICATE OF AUTHENTICATION:

         This is one of the Securities referred to in the
         within-mentioned Trust Agreement


         THE FIRST NATIONAL BANK OF CHICAGO, as Property Trustee


         By:
               Name:
               Title:



                                                        C-3

<PAGE>



                                                    ASSIGNMENT

         FOR VALUE RECEIVED,  the undersigned assigns and transfers this Capital
Security to:

     -------------------------------------------------------------

    (Insert assignee's social security or tax identification number)

    --------------------------------------------------------------

                (Insert address and zip code of assignee)


and irrevocably appoints
- --------------------------------------------------------------------------

agent to transfer this Capital Securities Certificate on the books of the Issuer
Trust. The agent may substitute another to act for him or her.

Date: ________________

Signature:________________________________________________________
(Sign exactly as your name appears on the other side of this Capital
 Security Certificate)

The  signature(s)  should be  guaranteed  by an eligible  guarantor  institution
(banks,  stockbrokers,  savings  and loan  associations  and credit  unions with
membership in an approved signature guarantee  medallion  program),  pursuant to
S.E.C. Rule 17Ad-15.



                                                        C-4

<PAGE>



                                                         Exhibit D









                   [Form of Restricted Securities Certificate]


                        RESTRICTED SECURITIES CERTIFICATE

       (For transfers pursuant to Sections 5.4(b) of the Trust Agreement)


The First National Bank of Chicago
One First National Plaza, Suite 0126
Chicago, IL  60670-0126

Attention:  Corporate Trust Services Division

                  Re:      Convertible Capital Securities
                           of HSB Capital II (the "Securities")

                  Reference is made to the Trust Agreement, dated as of December
31, 1997 (the "Trust  Agreement"),  among HSB Group,  Inc. (the "Company"),  The
First  National  Bank of  Chicago as  Property  Trustee  and the  Administrative
Trustees named therein.  Terms used herein and defined in the Trust Agreement or
under the U.S.  Securities  Act of 1933, as amended (the  "Securities  Act") are
used herein as so defined.

                  This  certificate  relates to _________  shares of Securities,
which  are   evidenced  by  the   following   certificate(s)   (the   "Specified
Securities"):

                  CUSIP No(s). ________________________

                  CERTIFICATE No(s). __________________

                  The Person in whose name this  certificate  is executed  below
(the  "Undersigned")  hereby certifies that either (i) it is the sole beneficial
owner of the  Specified  Securities  or (ii) it is  acting  on behalf of all the
beneficial owners of the Specified  Securities and is duly authorized by them to
do so. Such  beneficial  owner or owners are referred to herein  collectively as
the  "Owner."  Such  Specified  Securities  are  registered  in the  name of the
Undersigned, as or on behalf of the Owner.

                  The Owner  has  requested  that the  Specified  Securities  be
transferred to a person (the "Transferee") who will take delivery in the form of
a  Restricted  Security.  In  connection  with such  transfer,  the Owner hereby
certifies that,  unless such transfer is being effected pursuant to an effective
registration  statement  under the Securities  Act, it is being effected only in
compliance  with  the  requirements  of the  Securities  Act or  pursuant  to an
applicable exemption


                                                        D-1

<PAGE>



therefrom.  Such transfer is being effected in whole or in part, but if in part,
in amounts not less than $10,000,000 in principal amount.  The Owner also hereby
certifies  that it agrees to be bound by the terms and  provisions  of the Trust
Agreement, including Section 5.4(b), and the other documents mentioned therein.

         This certificate and the statements  contained herein are made for your
benefit and benefit of the Trust and the Purchaser.

Dated:___________________________

         (Print  the name of the  Undersigned,  as such term is  defined  in the
         second paragraph of this certificate.)

         By:__________________________
                  Name:
                  Title:

         (If the  Undersigned  is a corporation,  partnership or fiduciary,  the
         title of the  person  signing  on  behalf  of the  Undersigned  must be
         stated.)


                                                        D-2

<PAGE>



                                                                     Exhibit E

                  [Form of Unrestricted Securities Certificate]


                       UNRESTRICTED SECURITIES CERTIFICATE

(For removal of Securities Act Legends pursuant to Section 5.4(c))


The First National Bank of Chicago
One First National Plaza, Suite 0126
Chicago, IL  60670-0126

Attention:  Corporate Trust Services Division

Re:      Convertible Capital Securities of HSB Group, Inc. (the "Securities")

         Reference is made to the Trust Agreement, dated as of December 31, 1997
(the  "Trust  Agreement"),  among HSB Group,  Inc.  (the  "Company"),  The First
National  Bank of Chicago as Property  Trustee and the  Administrative  Trustees
named  therein.  Terms used herein and defined in the Trust  Agreement  are used
herein as so defined.

         This certificate relates to ___________ shares of Securities, which are
evidenced by the following certificate(s) (the "Specified Securities"):

         CUSIP No(s).  _____________________

         CERTIFICATE No(s). _______________

         The  person in whose  name this  certificate  is  executed  below  (the
"Undersigned")  hereby certifies that either (i) it is the sole beneficial owner
of the Specified Securities or (ii) it is acting on behalf of all the beneficial
owners of the Specified Securities and is duly authorized by them to do so. Such
beneficial  owner or owners are referred to herein  collectively as the "Owner."
The Specified  Securities are registered in the name of the Undersigned as or on
behalf of the Owner.

         The Owner has requested that the Specified  Securities be exchanged for
Securities  bearing no Securities  Act Legend  pursuant to Section 5.4(c) of the
Trust  Agreement.  In connection with such exchange,  the Owner hereby certifies
that the  exchange  is  occurring  after a holding  period of at least two years
(computed in  accordance  with  paragraph (d) of Rule 144) has elapsed since the
Specified  Securities  were last acquired from the Trust or from an affiliate of
the Trust,  whichever is later,  and the Owner is not, and during the  preceding
three  months  has  not  been,  an  affiliate  of  the  Trust.  The  Owner  also
acknowledges that any future transfers of the Specified


                                                        E-1

<PAGE>



Securities must comply with all applicable  securities laws of the states of the
United States and other  jurisdictions.  The Owner also hereby certifies that it
agrees to be bound by the terms and provisions of the Trust Agreement, including
Section 5.4(b), and the other documents mentioned therein.

         This certificate and the statements  contained herein are made for your
benefit and the benefit of the Trust and the Purchaser.

Dated:
                  (Print the name of the Undersigned, as such term is defined in
                  the second paragraph of this certificate.)

                  By:
                           Name:
                           Title:

                  (If  the   Undersigned  is  a   corporation,   partnership  or
                  fiduciary,  the title of the  person  signing on behalf of the
                  Undersigned must be stated.)


                                               E-2

<PAGE>



                                                                     Exhibit F

                                               NOTICE OF CONVERSION

To:       The First National Bank of Chicago
           as Property Trustee of
           HSB Capital II


                  The  undersigned  owner of  these  Capital  Securities  hereby
irrevocably  exercises the option to convert these  Capital  Securities,  or the
portion below designated,  into Common Stock of HSB GROUP, INC. (the "HSB Common
Stock")  in  accordance  with  the  terms of the  Trust  Agreement  (the  "Trust
Agreement"),  dated as of December 31, 1997, by Saul L. Basch,  Roberta  O'Brien
and Robert C. Walker, as Administrative  Trustees,  First Chicago Delaware Inc.,
as Delaware  Trustee,  The First National Bank of Chicago,  as Property Trustee,
HSB  Group,  Inc.,  as  Depositor,  and by the  Holders,  from time to time,  of
individual  beneficial interests in the Trust to be issued pursuant to the Trust
Agreement.  Pursuant  to the  aforementioned  exercise  of the option to convert
these Capital  Securities,  the undersigned  hereby directs the Conversion Agent
(as that term is defined in the Trust  Agreement)  to (i) exchange  such Capital
Securities for a portion of the Debentures (as that term is defined in the Trust
Agreement) held by the Trust (at the rate of exchange  specified in the terms of
the Capital  Securities set forth in the Trust  Agreement) and (ii)  immediately
convert such Debentures on behalf of the undersigned,  into HSB Common Stock (at
the conversion  rate specified in the terms of the Capital  Securities set forth
in the Trust Agreement).

                  The undersigned  does also hereby direct the Conversion  Agent
that the shares  issuable and  deliverable  upon  conversion,  together with any
check in payment for fractional  shares,  be issued in the name of and delivered
to the undersigned, unless a different name has been indicated in the assignment
below.  If  shares  are to be  issued  in the  name of a person  other  than the
undersigned,  the  undersigned  will pay all transfer taxes payable with respect
thereto.

                  Any  holder,  upon the  exercise of its  conversion  rights in
accordance  with the terms of the Trust  Agreement  and the Capital  Securities,
agrees to be bound by the terms of the Registration Rights Agreement relating to
the HSB Common Stock issuable upon conversion of the Capital Securities.



                                                        F-1

<PAGE>



Date: ____________, ____

         in whole __                        in part __

                                            Number of Capital
                                            Securities to be converted:
                                            -------------------


                                                     If a name  or  names  other
                                                     than    the    undersigned,
                                                     please   indicate   in  the
                                                     spaces  below  the  name or
                                                     names in which  the  shares
                                                     of HSB Common  Stock are to
                                                     be  issued,  along with the
                                                     address  or   addresses  of
                                                     such person or persons









                         Signature (for conversion only)

                               Please Print or Typewrite Name and Address,
                               Including Zip Code, and Social Security or Other
                               Identifying Number





                                            Signature Guarantee:*

- --------------------------------------
*        (Signature  must be guaranteed by an  institution  which is a member of
         the  following   recognized   Signature  Guaranty  Programs:   (i)  The
         Securities Transfer Agent Medallion Program (STAMP);  (ii) The New York
         Stock  Exchange  Medallion  Program  (MSP);  (iii) The  Stock  Exchange
         Medallion  Program  (SEMP);  or (iv) in such other  guarantee  programs
         acceptable to the
         Trustee.)

0148490.06-01S7a
                                                   F-2

<PAGE>





                                                                 Exhibit 4.5


                                     [Form of Capital Securities Certificate]

         THE CAPITAL SECURITIES  EVIDENCED HEREBY, ANY CONVERTIBLE  SUBORDINATED
DEFERRABLE  INTEREST  DEBENTURES ISSUABLE HEREWITH AND THE COMMON STOCK ISSUABLE
UPON THEIR CONVERSION HAVE NOT BEEN REGISTERED UNDER THE U.S.  SECURITIES ACT OF
1933 (THE "SECURITIES ACT") AND MAY NOT BE OFFERED,  SOLD,  PLEDGED OR OTHERWISE
TRANSFERRED EXCEPT IN WHOLE OR IN PART (BUT IF IN PART, IN AMOUNTS NOT LESS THAN
$10,000,000 IN PRINCIPAL AMOUNT) AND ONLY IN COMPLIANCE WITH THE REQUIREMENTS OF
THE SECURITIES ACT OR PURSUANT TO AN APPLICABLE EXEMPTION THEREFROM.

         NO EMPLOYEE  BENEFIT OR OTHER PLAN  SUBJECT TO TITLE I OF THE  EMPLOYEE
RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF
THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE "CODE") (EACH, A "PLAN"),  NO
ENTITY WHOSE  UNDERLYING  ASSETS  INCLUDE  "PLAN ASSETS" BY REASON OF ANY PLAN'S
INVESTMENT IN THE ENTITY (A "PLAN ASSET ENTITY"),  AND NO PERSON INVESTING "PLAN
ASSETS" OF ANY PLAN, MAY ACQUIRE OR HOLD THIS CAPITAL SECURITIES  CERTIFICATE OR
ANY  INTEREST  HEREIN,  UNLESS  SUCH  PURCHASER  OR HOLDER IS  ELIGIBLE  FOR THE
EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION
CLASS  EXEMPTION  ("PTCE")  96-23,  95-60,  91-38,  90-1  OR  84-14  OR  ANOTHER
APPLICABLE  EXEMPTION  WITH RESPECT TO SUCH PURCHASE OR HOLDING AND, IN THE CASE
OF ANY  PURCHASER  OR HOLDER  RELYING ON ANY  EXEMPTION  OTHER THAN PTCE  96-23,
95-60,  91-38,  90-1 OR 84-14, HAS COMPLIED WITH ANY REQUEST BY THE DEPOSITOR OR
THE ISSUER TRUST FOR AN OPINION OF COUNSEL OR OTHER EVIDENCE WITH RESPECT TO THE
AVAILABILITY  OF SUCH  EXEMPTION.  ANY  PURCHASER  OR  HOLDER  OF  THIS  CAPITAL
SECURITIES CERTIFICATE OR ANY INTEREST HEREIN WILL BE DEEMED TO HAVE REPRESENTED
BY ITS  PURCHASE  AND HOLDING  HEREOF THAT IT EITHER (A) IS NOT A PLAN OR A PLAN
ASSET ENTITY AND IS NOT  PURCHASING  SUCH  SECURITIES ON BEHALF OF OR WITH "PLAN
ASSETS" OF ANY PLAN, OR (B) IS ELIGIBLE FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER
PTCE 96-23,  95-60,  91-38, 90-1 OR 84-14 OR ANOTHER  APPLICABLE  EXEMPTION WITH
RESPECT TO SUCH PURCHASE OR HOLDING.


<PAGE>



Certificate Number                              Aggregate Liquidation Amount

     P-___                                              $300,000,000


                    Certificate Evidencing Capital Securities

                                       of

                                 HSB Capital II

                         Convertible Capital Securities
                (liquidation amount $1,000 per Capital Security)


     HSB Capital II, a statutory  business  trust  created under the laws of the
State of Delaware (the "Issuer  Trust"),  hereby certifies that [Name of Holder]
(the  "Holder") is the  registered  owner of Three  Hundred  Thousand  (300,000)
capital securities  (aggregate  Liquidation Amount Three Hundred Million dollars
($300,000,000))  of  the  Issuer  Trust   representing  a  preferred   undivided
beneficial  interest  in the  assets  of the  Issuer  Trust and  designated  the
Convertible Capital Securities  (liquidation amount $1,000 per Capital Security)
(the "Capital Securities"). The Capital Securities are transferable on the books
and records of the Issuer  Trust,  in person or by a duly  authorized  attorney,
upon surrender of this certificate duly endorsed and in proper form for transfer
as provided  in Section  5.4 of the Trust  Agreement  (as  defined  below).  The
designations, rights, privileges, restrictions,  preferences and other terms and
provisions of the Capital  Securities are set forth in, and this certificate and
the Capital  Securities  represented hereby are issued and shall in all respects
be subject to the terms and  provisions  of, the Trust  Agreement  of the Issuer
Trust,  dated as of December 31,  1997,  as the same may be amended from time to
time (the "Trust Agreement"),  among HSB Group, Inc., a Delaware corporation, as
Depositor,  The First  National  Bank of  Chicago,  as Property  Trustee,  First
Chicago Delaware,  Inc., as Delaware Trustee,  and the  Administrative  Trustees
named therein,  including the designation of the terms of the Capital Securities
as set forth  therein.  The Holder is entitled to the benefits of the  Guarantee
Agreement,  dated as of December 31, 1997 (the "Guarantee  Agreement"),  entered
into by HSB Group,  Inc. and The First  National  Bank of Chicago,  as guarantee
trustee, to the extent provided therein. The Issuer Trust will furnish a copy of
the Trust  Agreement and the Guarantee  Agreement to the Holder  without  charge
upon written  request to the Issuer Trust at its principal  place of business or
registered office.

     Upon  receipt  of this  certificate,  the  Holder  is  bound  by the  Trust
Agreement and is entitled to the benefits thereunder.




                                                       

<PAGE>



     IN WITNESS WHEREOF, one of the Administrative  Trustees of the Issuer Trust
has executed this certificate this 31st day of December, 1997.

                                       HSB CAPITAL II


                                       By:
                                       Name:
                                       Administrative Trustee






         TRUSTEE'S CERTIFICATE OF AUTHENTICATION:

         This is one of the Securities referred to in the
         within-mentioned Trust Agreement


         THE FIRST NATIONAL BANK OF CHICAGO, as Property Trustee


         By:
               Name:
               Title:



                                                       

<PAGE>



                                  ASSIGNMENT

         FOR VALUE RECEIVED,  the undersigned assigns and transfers this Capital
Security to:

     -------------------------------------------------------------

    (Insert assignee's social security or tax identification number)

    --------------------------------------------------------------

                (Insert address and zip code of assignee)


and irrevocably appoints
- --------------------------------------------------------------------------

agent to transfer this Capital Securities Certificate on the books of the Issuer
Trust. The agent may substitute another to act for him or her.

Date: ________________

Signature:________________________________________________________
(Sign exactly as your name appears on the other side of this Capital
 Security Certificate)

The  signature(s)  should be  guaranteed  by an eligible  guarantor  institution
(banks,  stockbrokers,  savings  and loan  associations  and credit  unions with
membership in an approved signature guarantee  medallion  program),  pursuant to
S.E.C. Rule 17Ad-15.



                                  

                                                                Exhibit 4.7


                               GUARANTEE AGREEMENT

                                     between


                                HSB GROUP, INC.,
                                  as Guarantor


                                       and


                       THE FIRST NATIONAL BANK OF CHICAGO,
                              as Guarantee Trustee


                                   Relating to

                                 HSB Capital II


                           ---------------------------



                          Dated as of December 31, 1997


                           ---------------------------







<PAGE>



                               TABLE OF CONTENTS
                                                                      Page


                                   ARTICLE I

                                  DEFINITIONS

SECTION 1.1. Definitions.....................................................  2

                    ARTICLE II

                TRUST INDENTURE ACT

SECTION 2.1. Trust Indenture Act; Application................................  5
SECTION 2.2. List of Holders.................................................  5
SECTION 2.3. Reports by the Guarantee Trustee................................  5
SECTION 2.4. Periodic Reports to the Guarantee Trustee.......................  6
SECTION 2.5. Evidence of Compliance with Conditions Precedent................  6
SECTION 2.6. Events of Default; Waiver.......................................  6
SECTION 2.7. Event of Default; Notice........................................  6
SECTION 2.8. Conflicting Interests...........................................  7


                    ARTICLE III

POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

SECTION 3.1. Powers and Duties of the Guarantee Trustee......................  7
SECTION 3.2. Certain Rights of Guarantee Trustee.............................  8
SECTION 3.3. Compensation; Fees.............................................. 10


                    ARTICLE IV

                 GUARANTEE TRUSTEE

SECTION 4.1. Guarantee Trustee; Eligibility.................................. 11
SECTION 4.2. Appointment, Removal and Resignation of the Guarantee Trustee... 11


                        -i-


<PAGE>



                                    ARTICLE V

                                    GUARANTEE

 SECTION 5.1. Guarantee..................................................... 12
 SECTION 5.2. Waiver of Notice and Demand................................... 12
 SECTION 5.3. Obligations Not Affected...................................... 12
 SECTION 5.4. Rights of Holders............................................. 13
 SECTION 5.5. Guarantee of Payment.......................................... 14
 SECTION 5.6. Subrogation................................................... 14
 SECTION 5.7. Independent Obligations....................................... 14


                                   ARTICLE VI

                           COVENANTS AND SUBORDINATION

 SECTION 6.1. Subordination................................................. 14
 SECTION 6.2. Pari Passu Guarantees......................................... 15


                                   ARTICLE VII

                                   TERMINATION

 SECTION 7.1. Termination................................................... 15


                                  ARTICLE VIII

                                  MISCELLANEOUS

 SECTION 8.1. Successors and Assigns........................................ 16
 SECTION 8.2. Amendments.................................................... 16
 SECTION 8.3. Notices....................................................... 16
 SECTION 8.4. Benefit....................................................... 17
 SECTION 8.5. Governing Law................................................. 17
 SECTION 8.6. Counterparts.................................................. 17


                                      -ii-


<PAGE>



         GUARANTEE AGREEMENT,  dated as of December 31, 1997, between HSB GROUP,
INC., a Connecticut  corporation (the "Guarantor"),  having its principal office
at One State Street, Hartford,  Connecticut 06102 and The First National Bank of
Chicago, a national banking association,  as trustee (the "Guarantee  Trustee"),
for the  benefit of the Holders  (as  defined  herein)  from time to time of the
Capital  Securities (as defined herein) of HSB Capital II, a Delaware  statutory
business trust (the "Issuer Trust").

                           RECITALS OF THE CORPORATION

         WHEREAS,  pursuant to a Trust Agreement,  dated as of December 31, 1997
(the "Trust Agreement"), among HSB Group, Inc., as Depositor, The First National
Bank of Chicago,  as Property  Trustee,  First Chicago Delaware Inc. as Delaware
Trustee,  and the  Administrative  Trustees named  therein,  the Issuer Trust is
issuing  $300,000,000  aggregate  Liquidation  Amount  (as  defined in the Trust
Agreement) of its Convertible Capital Securities  (liquidation amount $1,000 per
capital security) (the "Capital  Securities"),  representing preferred undivided
beneficial  interests in the assets of the Issuer Trust and having the terms set
forth in the Trust Agreement; and

         WHEREAS,  the Capital Securities will be issued by the Issuer Trust and
the proceeds thereof, together with the proceeds from the issuance of the Issuer
Trust's  Common  Securities  (as defined  herein),  will be used to purchase the
Debentures  (as  defined  in  the  Trust  Agreement)  of  the  Guarantor,  which
Debentures  will be  deposited  with The  First  National  Bank of  Chicago,  as
Property Trustee under the Trust Agreement, as trust assets; and

         WHEREAS,   as  an  incentive  for  the  Holders  to  purchase   Capital
Securities,  the Guarantor desires  irrevocably and unconditionally to agree, to
the extent set forth herein, to pay to the Holders of the Capital Securities the
Guarantee  Payments (as defined  herein) on the terms and  conditions  set forth
herein.

         WHEREAS,   the  Guarantor  is  executing  and  delivering  a  guarantee
agreement (the "Common  Securities  Guarantee"),  with  substantially  identical
terms to this Guarantee Agreement,  for the benefit of the holders of the Common
Securities (as defined  herein),  except that if an Event of Default (as defined
in the Declaration) has occurred and is continuing, the rights of holders of the
Common  Securities to receive  Guarantee  Payments  under the Common  Securities
Guarantee  are  subordinated,  to the  extent and in the manner set forth in the
Common Securities  Guarantee,  to the rights of holders of Capital Securities to
receive Guarantee Payments under this Guarantee Agreement.

         NOW, THEREFORE,  in consideration of the purchase of Capital Securities
by each Holder,  which purchase the Guarantor hereby  acknowledges  will benefit
the Guarantor,  the Guarantor executes and delivers this Guarantee Agreement for
the benefit of the Holders from time to time.





<PAGE>



                                    ARTICLE I

                                   DEFINITIONS

         SECTION 1.1. Definitions.

         For all  purposes  of this  Guarantee  Agreement,  except as  otherwise
expressly provided or unless the context otherwise requires:

         (a) The terms  defined in this Article  have the  meanings  assigned to
them in this Article, and include the plural as well as the singular;

         (b) All other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

         (c) The words "include", "includes" and "including" shall be deemed to
be followed by the phrase "without limitation";

         (d) All accounting  terms used but not defined herein have the meanings
assigned to them in accordance with United States generally accepted  accounting
principles;

         (e)  Unless  the  context  otherwise  requires,  any  reference  to  an
"Article" or a "Section" refers to an Article or a Section,  as the case may be,
of this Guarantee Agreement; and

         (f) The words  "hereby",  "herein",  "hereof" and "hereunder" and other
words of similar import refer to this Guarantee  Agreement as a whole and not to
any particular Article, Section or other subdivision.

         "Affiliate" of any specified  Person means any other Person directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control",  when used with respect to any specified  Person,  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

         "Board of  Directors"  means the board of directors of the Guarantor or
the Executive Committee of the board of directors of the Guarantor (or any other
committee  of the  board  of  directors  of  the  Guarantor  performing  similar
functions) or a committee  designated by the board of directors of the Guarantor
(or such committee),  comprised of two or more members of the board of directors
of the Guarantor or officers of the Guarantor, or both.

         "Capital  Securities" means the capital  securities of the Issuer Trust
defined in the Trust  Agreement  referred to in the  recitals to this  Guarantee
Agreement, as modified, amended or supplemented from time to time.

                                       -2-


<PAGE>




         "Common Securities" means the securities  representing common undivided
beneficial interests in the assets of the Issuer Trust.

         "Event of Default"  means (i) a default by the  Guarantor in any of its
payment  obligations  under this  Guarantee  Agreement  or (ii) a default by the
Guarantor in any material respect of any other obligation hereunder that remains
unremedied for 90 days.

         "Guarantee  Agreement"  means this  Guarantee  Agreement,  as modified,
amended or supplemented from time to time.

         "Guarantee  Payments"  means the following  payments or  distributions,
without duplication,  with respect to the Capital Securities,  to the extent not
paid or made by or on behalf of the Issuer  Trust:  (i) any  accrued  and unpaid
Distributions  required to be paid on the Capital Securities,  to the extent the
Issuer  Trust  has  funds on hand  available  therefor  at such  time,  (ii) the
Redemption Price with respect to any Capital  Securities  called for redemption,
to the extent  the Issuer  Trust has funds on hand  available  therefor  at such
time,  and (iii) upon a  voluntary  or  involuntary  termination,  winding up or
liquidation of the Issuer Trust (unless the  Debentures  are  distributed to the
Holders) the lesser of (a) the Liquidation Distribution (as defined in the Trust
Agreement) with respect to the Capital Securities,  and (b) the amount of assets
of  the  Issuer  Trust  remaining  available  for  distribution  to  Holders  on
liquidation of the Issuer Trust.

         "Guarantee Trustee" means The First National Bank of Chicago, solely in
its capacity as Guarantee  Trustee and not in its individual  capacity,  until a
Successor Guarantee Trustee has been appointed and has accepted such appointment
pursuant to the terms of this Guarantee  Agreement,  and  thereafter  means each
such Successor Guarantee Trustee.

     "Guarantor"  has the  meaning  specified  in the  first  paragraph  of this
Guarantee Agreement.

         "Holder"  means any Holder (as defined in the Trust  Agreement)  of any
Capital Securities;  provided,  however, that in determining whether the holders
of the  requisite  percentage  of Capital  Securities  have  given any  request,
notice,  consent or waiver hereunder,  "Holder" shall not include the Guarantor,
the  Guarantee  Trustee,  or any  Affiliate of the  Guarantor  or the  Guarantee
Trustee.

         "Indenture" means the Indenture, dated as of December 31, 1997, between
HSB Group, Inc. and The First National Bank of Chicago,  as trustee, as the same
may be modified, amended or supplemented from time to time.

         "Issuer Trust" has the meaning specified in the first paragraph of 
this Guarantee Agreement.


                                                          -3-


<PAGE>



         "List of Holders" has the meaning specified in Section 2.2(a).

         "Majority  in  Liquidation  Amount of the  Capital  Securities"  means,
except as provided by the Trust Indenture Act, Capital  Securities  representing
more than 50% of the  aggregate  Liquidation  Amount  (as  defined  in the Trust
Agreement) of all Capital  Securities then  Outstanding (as defined in the Trust
Agreement).

         "Officers' Certificate" means a certificate signed by one of the Senior
Vice Presidents or Chief  Executive  Officer or the President or Vice Presidents
of the Guarantor,  and by the Treasurer,  an Assistant Treasurer,  the Corporate
Secretary or an Assistant Corporate Secretary of the Guarantor, and delivered to
the Guarantee  Trustee.  Any  Officers'  Certificate  delivered  with respect to
compliance with a condition or covenant provided for in this Guarantee Agreement
shall include:

                  (a)  a  statement  by  each  officer   signing  the  Officers'
         Certificate  that such officer has read the  covenant or condition  and
         the definitions relating thereto;

                  (b)  a  brief  statement  of  the  nature  and  scope  of  the
         examination  or  investigation  undertaken by such officer in rendering
         the Officers' Certificate;

                  (c) a statement that such officer has made such examination or
         investigation  as, in such  officer's  opinion,  is necessary to enable
         such  officer to express an informed  opinion as to whether or not such
         covenant or condition has been complied with; and

                  (d) a statement as to whether, in the opinion of such officer,
         such condition or covenant has been complied with.

         "Person" means a legal person,  including any individual,  corporation,
estate, partnership,  joint venture, association,  joint-stock company, company,
limited liability company, trust, business trust, unincorporated association, or
government or any agency or political  subdivision  thereof, or any other entity
of whatever nature.

         "Responsible Officer" means, with respect to the Guarantee Trustee, any
Senior Vice  President,  any Vice President,  any Assistant Vice President,  the
Secretary,  any Assistant Secretary, the Treasurer, any Assistant Treasurer, any
Trust  Officer or Assistant  Trust Officer or any other officer of the Corporate
Trust  Department  of the  Guarantee  Trustee and also means,  with respect to a
particular  matter, any other officer to whom such matter is referred because of
that officer's knowledge of and familiarity with the particular subject.

         "Successor  Guarantee  Trustee"  means a  successor  Guarantee  Trustee
possessing the qualifications to act as Guarantee Trustee under Section 4.1.

         "Trust  Agreement"  means  the  Trust  Agreement  of the  Issuer  Trust
referred to in the recitals to this Guarantee Agreement, as modified, amended or
supplemented from time to time.

                                                          -4-


<PAGE>




         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the  date as of  which  this  Guarantee  Agreement  was  executed;  provided,
however,  that if the Trust  Indenture  Act of 1939 is amended  after such date,
"Trust  Indenture Act" means, to the extent required by any such amendment,  the
Trust Indenture Act of 1939 as so amended.


                                   ARTICLE II

                               TRUST INDENTURE ACT

         SECTION 2.1. Trust Indenture Act; Application.

         Except as otherwise  expressly provided herein, the Trust Indenture Act
shall apply as a matter of contract to this Guarantee  Agreement for purposes of
interpretation,  construction and defining the rights and obligations hereunder,
and this Guarantee  Agreement,  the Guarantor and the Guarantee Trustee shall be
deemed  for all  purposes  hereof to be  subject  to and  governed  by the Trust
Indenture  Act to the  same  extent  as  would  be the  case if  this  Guarantee
Agreement were qualified under that Act on the date hereof.  Except as otherwise
expressly  provided  herein,  if and to the extent  that any  provision  of this
Guarantee  Agreement  limits,  qualifies or conflicts with the duties imposed by
Sections 310 to 317, inclusive,  of the Trust Indenture Act, such imposed duties
shall control.

         SECTION 2.2. List of Holders.

         (a) Commencing July 1, 1998, the Guarantor shall furnish or cause to be
furnished to the Guarantee Trustee (a) semi-annually, on or before January 1 and
July 1 of  each  year,  a list,  in  such  form  as the  Guarantee  Trustee  may
reasonably  require,  of the  names and  addresses  of the  Holders  (a "List of
Holders") as of a date not more than 15 days prior to the delivery thereof,  and
(b) at such other times as the Guarantee Trustee may request in writing,  within
30 days  after the  receipt  by the  Guarantor  of any such  request,  a List of
Holders  as of a date not more  than 15 days  prior  to the  time  such  list is
furnished,  in each case to the extent such  information is in the possession or
control of the Guarantor  and has not  otherwise  been received by the Guarantee
Trustee in its capacity as such.  The Guarantee  Trustee may destroy any List of
Holders previously given to it on receipt of a new List of Holders.

         (b) The Guarantee Trustee shall comply with the requirements of Section
311(a), Section 311(b) and Section 312(b) of the Trust Indenture Act.

         SECTION 2.3. Reports by the Guarantee Trustee.

         Not later than 60 days  following May 15 of each year,  commencing  May
15, 1998, the Guarantee Trustee shall provide to the Holders such reports as are
required by Section 313 of the Trust  Indenture  Act, if any, in the form and in
the manner provided by Section 313 of the Trust Indenture Act. If this Guarantee
Agreement shall have been qualified under the Trust

                                       -5-


<PAGE>



Indenture Act, the Guarantee  Trustee shall also comply with the requirements of
Section 313(d) of the Trust Indenture Act.

         SECTION 2.4. Periodic Reports to the Guarantee Trustee.

         The Guarantor  shall  provide to the Guarantee  Trustee and the Holders
such documents,  reports and information,  if any, as required by Section 314 of
the Trust Indenture Act and the compliance  certificate  required by Section 314
of the Trust Indenture Act, in the form, in the manner and at the times required
by Section 314 of the Trust Indenture Act, provided that such documents, reports
and  information  shall not be required to be  provided  to the  Securities  and
Exchange  Commission  unless this Guarantee  Agreement shall have been qualified
under the Trust Indenture Act.

         SECTION 2.5. Evidence of Compliance with Conditions Precedent.

         The Guarantor  shall provide to the Guarantee  Trustee such evidence of
compliance  with  such  conditions  precedent,  if  any,  provided  for in  this
Guarantee  Agreement  that  relate to any of the  matters  set forth in  Section
314(c) of the Trust  Indenture Act. Any  certificate  or opinion  required to be
given by an officer of the Guarantor  pursuant to Section 314(c)(1) may be given
in the form of an Officers' Certificate.

         SECTION 2.6. Events of Default; Waiver.

         The Holders of at least a Majority in Liquidation Amount of the Capital
Securities may, by vote, on behalf of the Holders of all the Capital Securities,
waive any past  default  or Event of  Default  and its  consequences.  Upon such
waiver,  any such  default or Event of  Default  shall  cease to exist,  and any
default  or Event of  Default  arising  therefrom  shall be  deemed to have been
cured, for every purpose of this Guarantee  Agreement,  but no such waiver shall
extend to any  subsequent  or other  default  or Event of  Default or impair any
right consequent thereon.

         SECTION 2.7. Event of Default; Notice.

         (a) The Guarantee Trustee shall, within 30 days after the occurrence of
an Event of Default known to it, transmit by mail,  first class postage prepaid,
to the  Holders,  notice of any such  Event of  Default,  unless  such  Event of
Default has been cured before the giving of such notice,  provided that,  except
in the case of a default in the payment of a Guarantee  Payment,  the  Guarantee
Trustee  shall be  protected  in  withholding  such notice if and so long as the
board of directors,  the executive  committee or a trust  committee of directors
and/or  Responsible  Officers of the Guarantee  Trustee in good faith determines
that the withholding of such notice is in the interests of the Holders.

         (b) The Guarantee  Trustee shall not be deemed to have knowledge of any
Event of Default  unless the  Guarantee  Trustee  shall  have  received  written
notice, or a Responsible Officer

                                       -6-


<PAGE>



charged with the administration of this Guarantee  Agreement shall have obtained
actual knowledge, of such Event of Default.

         SECTION 2.8. Conflicting Interests.

         The  Trust   Agreement  and  the  Indenture   shall  be  deemed  to  be
specifically  described in this  Guarantee  Agreement for the purposes of clause
(i) of the first proviso contained in Section 310(b) of the Trust Indenture Act.


                                   ARTICLE III

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

         SECTION 3.1. Powers and Duties of the Guarantee Trustee.

         (a) This Guarantee Agreement shall be held by the Guarantee Trustee for
the benefit of the Holders,  and the  Guarantee  Trustee shall not transfer this
Guarantee  Agreement to any Person  except to a Successor  Guarantee  Trustee on
acceptance by such  Successor  Guarantee  Trustee of its  appointment  to act as
Guarantee  Trustee  hereunder.  The right,  title and interest of the  Guarantee
Trustee, as such,  hereunder shall automatically vest in any Successor Guarantee
Trustee,  upon acceptance by such Successor Guarantee Trustee of its appointment
hereunder, and such vesting and cessation of title shall be effective whether or
not  conveyancing  documents  have been executed and  delivered  pursuant to the
appointment of such Successor Guarantee Trustee.

         (b)  If an  Event  of  Default  has  occurred  and is  continuing,  the
Guarantee Trustee shall enforce this Guarantee  Agreement for the benefit of the
Holders.

         (c) The  Guarantee  Trustee,  before  the  occurrence  of any  Event of
Default  and after the curing of all Events of Default  that may have  occurred,
shall  undertake  to perform only such duties as are  specifically  set forth in
this  Guarantee  Agreement  (including  pursuant to Section 2.1), and no implied
covenants  shall be read into this  Guarantee  Agreement  against the  Guarantee
Trustee.  If an Event of Default has occurred (that has not been cured or waived
pursuant to Section  2.6),  the  Guarantee  Trustee  shall  exercise such of the
rights and powers  vested in it by this  Guarantee  Agreement,  and use the same
degree of care and skill in its  exercise  thereof,  as a prudent  person  would
exercise  or use  under  the  circumstances  in the  conduct  of his or her  own
affairs.

         (d) No  provision  of this  Guarantee  Agreement  shall be construed to
relieve the Guarantee Trustee from liability for its own negligent  action,  its
own negligent failure to act or its own wilful misconduct, except that:


                                       -7-


<PAGE>



                  (i) Prior to the  occurrence of any Event of Default and after
         the  curing or  waiving  of all such  Events of  Default  that may have
         occurred:

                           (A)  the  duties  and  obligations  of the  Guarantee
                  Trustee shall be determined  solely by the express  provisions
                  of this  Guarantee  Agreement  (including  pursuant to Section
                  2.1), and the Guarantee Trustee shall not be liable except for
                  the   performance  of  such  duties  and  obligations  as  are
                  specifically set forth in this Guarantee Agreement  (including
                  pursuant to Section 2.1); and

                           (B) in the  absence  of bad  faith on the part of the
                  Guarantee  Trustee,  the  Guarantee  Trustee may  conclusively
                  rely, as to the truth of the statements and the correctness of
                  the  opinions  expressed  therein,  upon any  certificates  or
                  opinions  furnished to the Guarantee Trustee and conforming to
                  the requirements of this Guarantee Agreement;  but in the case
                  of any such  certificates  or opinions  that by any  provision
                  hereof or of the Trust Indenture Act are specifically required
                  to be  furnished  to  the  Guarantee  Trustee,  the  Guarantee
                  Trustee shall be under a duty to examine the same to determine
                  whether  or not  they  conform  to the  requirements  of  this
                  Guarantee Agreement.

                  (ii) The  Guarantee  Trustee shall not be liable for any error
         of  judgment  made  in  good  faith  by a  Responsible  Officer  of the
         Guarantee Trustee, unless it shall be proved that the Guarantee Trustee
         was  negligent  in  ascertaining  the  pertinent  facts upon which such
         judgment was made.

                  (iii) The  Guarantee  Trustee shall not be liable with respect
         to any  action  taken or  omitted  to be  taken by it in good  faith in
         accordance  with  the  direction  of the  Holders  of not  less  than a
         Majority in Liquidation  Amount of the Capital  Securities  relating to
         the time,  method and place of conducting any proceeding for any remedy
         available to the Guarantee  Trustee,  or exercising  any trust or power
         conferred upon the Guarantee Trustee, under this Guarantee Agreement.

                  (iv)  Subject to Sections  3.1(b) and 3.1(d),  no provision of
         this Guarantee  Agreement shall require the Guarantee Trustee to expend
         or risk its own funds or otherwise incur personal  financial  liability
         in the  performance  of any of its duties or in the  exercise of any of
         its rights or powers,  if the Guarantee  Trustee shall have  reasonable
         grounds for believing  that the repayment of such funds or liability is
         not  reasonably  assured  to it  under  the  terms  of  this  Guarantee
         Agreement or adequate  indemnity  against such risk or liability is not
         reasonably assured to it.

         SECTION 3.2. Certain Rights of Guarantee Trustee.

         (a) Subject to the provisions of Section 3.1:


                                       -8-


<PAGE>



                  (i)  The  Guarantee  Trustee  may  rely  and  shall  be  fully
         protected  in acting or  refraining  from acting  upon any  resolution,
         certificate,  statement,  instrument, opinion, report, notice, request,
         direction,  consent,  order, bond,  debenture,  note, other evidence of
         indebtedness or other paper or document reasonably believed by it to be
         genuine and to have been signed,  sent or presented by the proper party
         or parties.

                  (ii) Any  direction or act of the  Guarantor  contemplated  by
         this  Guarantee  Agreement  shall  be  sufficiently   evidenced  by  an
         Officers' Certificate unless otherwise prescribed herein.

                  (iii)  Whenever,  in  the  administration  of  this  Guarantee
         Agreement,  the Guarantee Trustee shall deem it desirable that a matter
         be proved or established  before taking,  suffering or omitting to take
         any action  hereunder,  the Guarantee Trustee (unless other evidence is
         herein specifically prescribed) may, in the absence of bad faith on its
         part,  request  and rely  upon an  Officers'  Certificate  which,  upon
         receipt of such request from the Guarantee  Trustee,  shall be promptly
         delivered by the Guarantor.

                  (iv) The Guarantee Trustee may consult with legal counsel, and
         the written  advice or opinion of such legal  counsel  with  respect to
         legal matters shall be full and complete  authorization  and protection
         in respect of any action  taken,  suffered or omitted to be taken by it
         hereunder in good faith and in accordance  with such advice or opinion.
         Such legal  counsel may be legal counsel to the Guarantor or any of its
         Affiliates  and may be one of its or  their  employees.  The  Guarantee
         Trustee  shall  have  the  right  at  any  time  to  seek  instructions
         concerning  the  administration  of this  Guarantee  Agreement from any
         court of competent jurisdiction.

                  (v) The  Guarantee  Trustee  shall be under no  obligation  to
         exercise  any of the  rights or powers  vested in it by this  Guarantee
         Agreement at the request or direction of any Holder  unless such Holder
         shall have provided to the Guarantee Trustee such adequate security and
         indemnity as would  satisfy a reasonable  person in the position of the
         Guarantee  Trustee against the costs,  expenses  (including  attorneys'
         fees and  expenses)  and  liabilities  that might be  incurred by it in
         complying  with such request or direction,  including  such  reasonable
         advances as may be requested by the  Guarantee  Trustee;  provided that
         nothing  contained in this Section  3.2(a)(v) shall be taken to relieve
         the Guarantee Trustee,  upon the occurrence of an Event of Default,  of
         its  obligation  to exercise the rights and powers vested in it by this
         Guarantee Agreement.

                  (vi)  The  Guarantee  Trustee  shall  not be bound to make any
         investigation  into the  facts or  matters  stated  in any  resolution,
         certificate,  statement,  instrument, opinion, report, notice, request,
         direction,  consent,  order, bond,  debenture,  note, other evidence of
         indebtedness or other paper or document,  but the Guarantee Trustee, in
         its  discretion,  may make such further inquiry or  investigation  into
         such facts or matters as it may see fit.


                                       -9-


<PAGE>



                  (vii) The  Guarantee  Trustee may execute any of the trusts or
         powers  hereunder or perform any duties hereunder either directly or by
         or through its agents or attorneys, and the Guarantee Trustee shall not
         be responsible for any misconduct or negligence on the part of any such
         agent or attorney appointed by it with due care hereunder.

                  (viii)  Whenever  in  the  administration  of  this  Guarantee
         Agreement  the  Guarantee  Trustee  shall deem it  desirable to receive
         instructions  with respect to  enforcing  any remedy or right or taking
         any other  action  hereunder,  the  Guarantee  Trustee  (A) may request
         instructions  from the  Holders,  (B) may refrain from  enforcing  such
         remedy or right or taking such other action until such instructions are
         received,  and (C) shall be protected in acting in accordance with such
         instructions.

         (b) No provision of this Guarantee  Agreement shall be deemed to impose
any duty or obligation  on the  Guarantee  Trustee to perform any act or acts or
exercise any right, power, duty or obligation  conferred or imposed on it in any
jurisdiction  in which it shall be illegal,  or in which the  Guarantee  Trustee
shall be  unqualified  or  incompetent  in accordance  with  applicable  law, to
perform  any such act or acts or to  exercise  any such  right,  power,  duty or
obligation.  No permissive power or authority available to the Guarantee Trustee
shall  be  construed  to be a duty to act in  accordance  with  such  power  and
authority.

         SECTION 3.3. Compensation; Fees.

         The Guarantor agrees:

                  (a) to pay to the  Guarantee  Trustee  from  time to time such
         reasonable  compensation  for all services  rendered by it hereunder as
         may be agreed by the Guarantor  and the Guarantee  Trustee from time to
         time (which  compensation  shall not be limited by any provision of law
         in regard to the compensation of a trustee of an express trust); and

                  (b)  except  as  otherwise   expressly   provided  herein,  to
         reimburse  the  Guarantee  Trustee  upon  request  for  all  reasonable
         expenses,  disbursements and advances incurred or made by the Guarantee
         Trustee in accordance  with any provision of this  Guarantee  Agreement
         (including   the   reasonable   compensation   and  the   expenses  and
         disbursements  of its agents  and  counsel),  except any such  expense,
         disbursement or advance as may be attributable to its negligence or bad
         faith; and

                  (c) to the fullest  extent  permitted  by  applicable  law, to
         indemnify  and  hold  harmless  (i) the  Guarantee  Trustee,  (ii)  any
         Affiliate of the Guarantee  Trustee,  and (iii) any officer,  director,
         shareholder, employee, representative or agent of the Guarantee Trustee
         (referred to herein as an "Indemnified  Person"),  from and a any loss,
         damage, liability, tax, penalty, expense or claim of any kind or nature
         whatsoever  incurred by such Indemnified Person in connection with this
         Guarantee Agreement or any act or omission performed or omitted by such
         Indemnified Person in good faith and in manner

                                      -10-


<PAGE>



         such Indemnified  Person reasonably  believed to be within the scope of
         authority  conferred  on such  Indemnified  Person  by  this  Guarantee
         Agreement,  except that no  Indemnified  Person shall be entitled to be
         indemnified  in respect of any loss,  damage or claim  incurred by such
         Indemnified  Person by reason of negligence or willful  misconduct with
         respect to such acts or omissions.

         The Guarantee Trustee will not claim or exact any lien or charge on any
Guarantee  Payments  as a result of any amount  due to it under  this  Guarantee
Agreement.

         The  provisions  of this Section 3.3 shall survive the  termination  of
this Guarantee Agreement or the resignation or removal of the Guarantee Trustee.


                                   ARTICLE IV

                                GUARANTEE TRUSTEE

         SECTION 4.1. Guarantee Trustee; Eligibility.

         (a) There shall at all times be a Guarantee Trustee which shall:

                  (i) not be an Affiliate of the Guarantor; and

                  (ii) be a Person  that is a national or state  chartered  bank
         and eligible  pursuant to the Trust  Indenture Act to act as such,  and
         that has at the time of such appointment securities rated in one of the
         three highest rating categories by a nationally recognized  statistical
         rating  organization  and a combined  capital  and  surplus of at least
         $50,000,000,  and shall be a corporation  meeting the  requirements  of
         Section  310(a)  of  the  Trust  Indenture  Act.  If  such  corporation
         publishes reports of condition at least annually, pursuant to law or to
         the requirements of its supervising or examining  authority,  then, for
         the  purposes of this  Section 4.1 and to the extent  permitted  by the
         Trust  Indenture  Act,  the  combined   capital  and  surplus  of  such
         corporation  shall be deemed to be its combined  capital and surplus as
         set forth in its most recent report of condition so published.

         (b) If at any time the Guarantee  Trustee shall cease to be eligible to
so act under Section 4.1(a),  the Guarantee Trustee shall immediately  resign in
the manner and with the effect set out in Section 4.2.

         (c) If the  Guarantee  Trustee has or shall  acquire  any  "conflicting
interest"  within the meaning of Section 310(b) of the Trust  Indenture Act, the
Guarantee Trustee and Guarantor shall in all respects comply with the provisions
of Section 310(b) of the Trust Indenture Act.


                                      -11-


<PAGE>



     SECTION 4.2. Appointment, Removal and Resignation of the Guarantee Trustee.

         (a) Subject to Section 4.2(c),  the Guarantee  Trustee may be appointed
or removed at any time by the Guarantor.

         (b) Subject to Section  4.2(c),  the Guarantee  Trustee may resign from
office  (without  need for prior or  subsequent  accounting)  by giving  written
notice  thereof to the Holders and the  Guarantor  and by appointing a successor
Guarantee Trustee.

         (c) The Guarantee Trustee appointed hereunder shall hold office until a
Successor  Guarantee  Trustee shall have been  appointed and shall have accepted
such  appointment.  No removal or  resignation  of a Guarantee  Trustee shall be
effective  until a  Successor  Guarantee  Trustee  has  been  appointed  and has
accepted  such  appointment  by written  instrument  executed by such  Successor
Guarantee  Trustee  and  delivered  to the  Guarantor  and,  in the  case of any
resignation, the resigning Guarantee Trustee.

         (d) If the  Guarantee  Trustee  shall  resign,  be  removed  or  become
incapable  of  acting  as  Guarantee  Trustee  and a  replacement  shall  not be
appointed prior to such  resignation or removal,  or if a vacancy shall occur in
the office of  Guarantee  Trustee for any  reason,  and no  Successor  Guarantee
Trustee shall have been  appointed and accepted  appointment as provided in this
Section 4.2 within 60 days after  delivery to the Holders and the Guarantor of a
notice of  resignation,  the resigning  Guarantee  Trustee may petition,  at the
expense of the Guarantor, any court of competent jurisdiction for appointment of
a Successor Guarantee Trustee. Such court may thereupon,  after prescribing such
notice, if any, as it may deem proper, appoint a Successor Guarantee Trustee.


                                    ARTICLE V

                                    GUARANTEE

         SECTION 5.1. Guarantee.

         The Guarantor irrevocably and unconditionally  agrees to pay in full to
the Holders the Guarantee Payments (without  duplication of amounts  theretofore
paid by or on behalf of the Issuer  Trust),  as and when due,  regardless of any
defense,  right of set-off  or  counterclaim  that the Issuer  Trust may have or
assert,  except the defense of payment.  The  Guarantor's  obligation  to make a
Guarantee  Payment may be satisfied by direct payment of the required amounts by
the  Guarantor to the Holders or by causing the Issuer Trust to pay such amounts
to the Holders.

         SECTION 5.2. Waiver of Notice and Demand.

         The Guarantor  hereby  waives  notice of  acceptance of this  Guarantee
Agreement  and of any  liability to which it applies or may apply,  presentment,
demand for payment, any right to

                                      -12-


<PAGE>



require a proceeding  first against the Guarantee  Trustee,  the Issuer Trust or
any other Person before  proceeding  against the Guarantor,  protest,  notice of
nonpayment,  notice of dishonor,  notice of redemption and all other notices and
demands.

         SECTION 5.3. Obligations Not Affected.

         The  obligations,  covenants,  agreements  and duties of the  Guarantor
under this Guarantee Agreement shall in no way be affected or impaired by reason
of the happening from time to time of any of the following:

                  (a) the release or waiver,  by  operation  of law or otherwise
         (other than by Act (as defined in the Trust Agreement) of the Holders),
         of the  performance or observance by the Issuer Trust of any express or
         implied agreement,  covenant, term or condition relating to the Capital
         Securities to be performed or observed by the Issuer Trust;

                  (b) the  extension of time for the payment by the Issuer Trust
         of all or any portion of the Distributions  (other than an extension of
         time for payment of  Distributions  that results from the  extension of
         any  interest  payment  period on the  Debentures  as  provided  in the
         Indenture),  Redemption  Price,  Liquidation  Distribution or any other
         sums payable under the terms of the Capital Securities or the extension
         of time for the performance of any other obligation under,  arising out
         of, or in connection with, the Capital Securities;

                  (c) any failure,  omission,  delay or lack of diligence on the
         part  of  the  Holders  to  enforce,  assert  or  exercise  any  right,
         privilege,  power or remedy  conferred  on the Holders  pursuant to the
         terms  of the  Capital  Securities,  or any  action  on the part of the
         Issuer Trust granting indulgence or extension of any kind;

                  (d) the  voluntary or  involuntary  liquidation,  dissolution,
         receivership,  insolvency,  bankruptcy,  assignment  for the benefit of
         creditors, reorganization,  arrangement, composition or readjustment of
         debt of, or other similar  proceedings  affecting,  the Issuer Trust or
         any of the assets of the Issuer Trust;

               (e) any  invalidity  of, or defect or deficiency  in, the Capital
          Securities;

                  (f) the settlement or compromise of any obligation  guaranteed
         hereby or hereby incurred; or

                  (g) any other  circumstance  whatsoever  that might  otherwise
         constitute  a legal or  equitable  discharge  or defense of a guarantor
         (other than payment of the underlying obligation),  it being the intent
         of this Section 5.3 that the  obligations  of the  Guarantor  hereunder
         shall be absolute and unconditional under any and all circumstances.

There  shall be no  obligation  of the  Holders to give notice to, or obtain the
consent of, the Guarantor with respect to the happening of any of the foregoing.

                                      -13-


<PAGE>




         SECTION 5.4. Rights of Holders.

         The Guarantor expressly acknowledges that: (i) this Guarantee Agreement
will be deposited  with the Guarantee  Trustee to be held for the benefit of the
Holders;  (ii) the  Guarantee  Trustee has the right to enforce  this  Guarantee
Agreement  on  behalf  of the  Holders;  (iii)  the  Holders  of a  Majority  in
Liquidation  Amount of the Capital Securities have the right to direct the time,
method and place of conducting any  proceeding  for any remedy  available to the
Guarantee Trustee in respect of this Guarantee Agreement or exercising any trust
or power  conferred upon the Guarantee  Trustee under this Guarantee  Agreement;
and (iv) any  Holder may  institute  a legal  proceeding  directly  against  the
Guarantor to enforce its rights under this  Guarantee  Agreement  without  first
instituting a legal proceeding against the Guarantee  Trustee,  the Issuer Trust
or any other Person.

         SECTION 5.5. Guarantee of Payment.

         This  Guarantee  Agreement  creates a  guarantee  of payment and not of
collection. This Guarantee Agreement will not be discharged except by payment of
the Guarantee Payments in full (without  duplication of amounts theretofore paid
by the  Issuer  Trust) or upon the  distribution  of  Debentures  to  Holders as
provided in the Trust Agreement.

         SECTION 5.6. Subrogation.

         The Guarantor shall be subrogated to all rights (if any) of the Holders
against the Issuer  Trust in respect of any  amounts  paid to the Holders by the
Guarantor under this Guarantee Agreement;  provided, however, that the Guarantor
shall not (except to the extent  required  by  mandatory  provisions  of law) be
entitled  to  enforce or  exercise  any  rights  which it may  acquire by way of
subrogation or any indemnity,  reimbursement or other agreement, in all cases as
a result of payment under this Guarantee Agreement,  if, at the time of any such
payment, any amounts are due and unpaid under this Guarantee  Agreement.  If any
amount shall be paid to the  Guarantor in violation of the  preceding  sentence,
the  Guarantor  agrees to hold such  amount in trust for the  Holders and to pay
over such amount to the Holders.

         SECTION 5.7. Independent Obligations.

         The  Guarantor   acknowledges   that  its  obligations   hereunder  are
independent  of the  obligations of the Issuer Trust with respect to the Capital
Securities  and that the  Guarantor  shall be liable as principal  and as debtor
hereunder to make  Guarantee  Payments  pursuant to the terms of this  Guarantee
Agreement notwithstanding the occurrence of any event referred to in subsections
(a) through (f), inclusive, of Section 5.3 hereof.

                                      -14-


<PAGE>





                                   ARTICLE VI

                           COVENANTS AND SUBORDINATION

         SECTION 6.1. Subordination.

         The  obligations of the Guarantor  under this Guarantee  Agreement will
constitute unsecured  obligations of the Guarantor and will rank subordinate and
junior  in right of  payment  to all  Senior  Indebtedness  (as  defined  in the
Indenture)  of the  Guarantor  to the  extent and in the manner set forth in the
Indenture with respect to the  Debentures,  and the provisions of Article XII of
the Indenture will apply, mutatis mutandis,  to the obligations of the Guarantor
hereunder.  The obligations of the Guarantor  hereunder do not constitute Senior
Indebtedness (as defined in the Indenture) of the Guarantor.

         SECTION 6.2. Pari Passu Guarantees.

         The obligations of the Guarantor  under this Guarantee  Agreement shall
rank pari passu with the  obligations  of the  Guarantor  under (i) any  similar
guarantee  agreements  issued  by the  Guarantor  on behalf  of the  holders  of
preferred  or capital  securities  issued by any Issuer Trust (as defined in the
Indenture);  (ii) the Indenture and the Securities (as defined  therein)  issued
thereunder;  and (iii) any  other  security,  guarantee  or other  agreement  or
obligation  that is expressly  stated to rank pari passu with the obligations of
the Guarantor  under this Guarantee  Agreement or with any obligation that ranks
pari passu with the obligations of the Guarantor under this Guarantee Agreement.


                                   ARTICLE VII

                                   TERMINATION

         SECTION 7.1. Termination.

         This Guarantee Agreement shall terminate and be of no further force and
effect upon (i) full  payment of the  Redemption  Price (as defined in the Trust
Agreement) of all Capital Securities, (ii) the distribution of Debentures to the
Holders in exchange for all of the Capital Securities, (iii) full payment of the
amounts  payable  in  accordance  with  Article IX of the Trust  Agreement  upon
liquidation  of the Issuer  Trust or (iv) the  distribution  of the  Guarantor's
common stock to the Holders in respect of the  conversion  of all of the Capital
Securities into the  Guarantor's  common stock.  Notwithstanding  the foregoing,
this Guarantee Agreement will continue to be effective or will be reinstated, as
the case may be, if at any time any  Holder is  required  to repay any sums paid
with respect to Capital Securities or this Guarantee Agreement.



                                      -15-


<PAGE>



                                  ARTICLE VIII

                                  MISCELLANEOUS

         SECTION 8.1. Successors and Assigns.

         All  guarantees and  agreements  contained in this Guarantee  Agreement
shall bind the successors,  assigns, receivers,  trustees and representatives of
the  Guarantor  and shall  inure to the  benefit of the  Holders of the  Capital
Securities then outstanding.  Except in connection with a consolidation,  merger
or sale  involving  the  Guarantor  that is permitted  under Article VIII of the
Indenture and pursuant to which the  successor or assignee  agrees in writing to
perform the Guarantor's  obligations  hereunder,  the Guarantor shall not assign
its obligations hereunder, and any purported assignment other than in accordance
with this provision shall be void.

         SECTION 8.2. Amendments.

         Except with  respect to any changes  that do not  adversely  affect the
rights of the Holders in any  material  respect (in which case no consent of the
Holders will be required), this Guarantee Agreement may only be amended with the
prior approval of the Holders of not less than a Majority in Liquidation  Amount
of the Capital  Securities.  The provisions of Article VI of the Trust Agreement
concerning meetings of the Holders shall apply to the giving of such approval.

         SECTION 8.3. Notices.

         (a) Any notice, request or other communication required or permitted to
be given  hereunder  shall be in writing,  duly signed by the party  giving such
notice, and delivered, by facsimile or first class mail as follows:

         (i) if given to the Guarantor,  to the address or facsimile  number set
forth below or such other address or facsimile  number as the Guarantor may give
notice to the Guarantee Trustee and the Holders:

                  HSB Group, Inc.
                  One State Street
                  Hartford, Connecticut  06102
                  General Counsel
                  Facsimile: (860) 722-1818

         (ii) if given to the  Guarantee  Trustee,  at the address or  facsimile
number  set  forth  below or such  other  address  or  facsimile  number  as the
Guarantee Trustee may give notice to the Guarantor and the Holders:


                                      -16-


<PAGE>



                  The First National Bank of Chicago
                  One First National Plaza, Suite #0126
                  Chicago, Illinois  60070-0126
                  Corporate Trust Division
                  Facsimile:  (312) 407-1708

         (iii) if given to any Holder,  in the manner set forth in Section  10.8
of the Trust Agreement.

         (b) All  notices  hereunder  shall be deemed to have  been  given  when
received in person,  by  facsimile  with receipt  confirmed,  or mailed by first
class  mail,  postage  prepaid,  except  that if a notice or other  document  is
refused delivery or cannot be delivered because of a changed address of which no
notice was given,  such  notice or other  document  shall be deemed to have been
delivered on the date of such refusal or inability to deliver, provided that any
notice  given as  provided in Section  8.3(a)(iii)  shall be deemed to have been
given at the time specified in Section 10.8 of the Trust Agreement.


         SECTION 8.4. Benefit.

         This  Guarantee  Agreement is solely for the benefit of the Holders and
is not separately transferable from the Capital Securities.

         SECTION 8.5. Governing Law.

         THIS  GUARANTEE  AGREEMENT  SHALL  BE  GOVERNED  BY  AND  CONSTRUED  IN
ACCORDANCE  WITH  THE LAWS OF THE  STATE  OF NEW  YORK,  WITHOUT  REGARD  TO THE
PRINCIPLES OF CONFLICTS OF LAWS.

         SECTION 8.6. Counterparts.

         This Guarantee Agreement may be executed in any number of counterparts,
each of which  so  executed  shall be  deemed  to be an  original,  but all such
counterparts shall together constitute but one and the same instrument.

                                      -17-


<PAGE>


         IN WITNESS  WHEREOF,  the parties  hereto  have  caused this  Guarantee
Agreement  to be duly  executed,  and  their  respective  corporate  seals to be
hereunto affixed, all as of the day and year first above written.


                              HSB GROUP, INC.


                                  By:     /s/ Saul L. Basch
                                  Name:       Saul L. Basch
                                  Title:      Senior Vice President, Treasurer
                                              and Chief Financial Officer


                              THE FIRST NATIONAL BANK OF CHICAGO,
                              as Guarantee Trustee


                                  By:        /s/ Melissa G. Weisman
                                  Name:      Melissa G. Weisman
                                  Title:     Vice President

0151329.03-01S7a

<PAGE>




                                                                 Exhibit 4.8

                           REGISTRATION RIGHTS AGREEMENT

                  REGISTRATION  RIGHTS  AGREEMENT dated as of December 31, 1997,
between Employers Reinsurance  Corporation and ERC Life Reinsurance  Corporation
(collectively, "ERC") and HSB Group, Inc. (the "Company").

                  WHEREAS,  as of the date of this  Agreement,  ERC owns 300,000
capital  securities  (the "Capital  Securities")  of HSB Capital II, a statutory
business  trust created  under the laws of the State of Delaware,  which Capital
Securities are  convertible  into shares of Common Stock of the Company,  no par
value per share (the "Common Stock"),  pursuant to the Trust Agreement among HSB
Group, Inc. as Depositor, The First National Bank of Chicago as Property Trustee
and First Chicago  Delaware Inc. as Delaware  Trustee,  dated  December 31, 1997
(the "Trust Agreement");

                  WHEREAS,  the Board of Directors of the Company has authorized
the  officers of the Company to execute and deliver  this  Agreement in the name
and on behalf of the Company;

                  NOW,  THEREFORE,  in consideration of the mutual covenants and
agreements  herein  contained,  the parties to this  Agreement  hereby  agree as
follows:

                  1.       Definitions.  As used in this Agreement,
the following terms shall have the following meanings:

                  "Holder" means ERC and any other person that owns  Registrable
Securities,  including  their  respective  successors  and  assigns  who acquire
Registrable Securities,  directly or indirectly,  from ERC or such other person.
For purposes of this  Agreement,  the Company may deem and treat the  registered
holder of a Registrable  Security as the Holder and absolute owner thereof,  and
the Company shall not be affected by any notice to the contrary.

                  "Registrable  Securities"  means (a) the Common Stock owned by
ERC upon conversion of the Capital  Securities  pursuant to the Trust Agreement,
(b) any Common  Stock  acquired  by ERC in the open market at a time when ERC is
deemed to be an  Affiliate  (as such term is  defined  under  Rule 144 under the
Securities Act) of the Company,



<PAGE>



and (c) any  securities  issued or  issuable  in  respect  of the  Common  Stock
referred  to in clauses  (a) and (b) above,  by way of stock  dividend  or stock
split  or  in  connection  with  a  combination  of  shares,   recapitalization,
reclassification,  merger  or  consolidation,  and any other  securities  issued
pursuant to any other pro rata  distribution  with respect to such Common Stock.
For  purposes  of  this  Agreement,  a  Registrable  Security  ceases  to  be  a
Registrable  Security  when (x) it has been  effectively  registered  under  the
Securities  Act and sold or  distributed  to the  public in  accordance  with an
effective registration statement covering it (and has not been reacquired in the
manner  described in clause (b) above),  or (y) it is sold or distributed to the
public  pursuant to Rule 144 (or any successor or similar  provision)  under the
Securities Act.

                  "SEC" means the Securities and Exchange Commission.

                  "Securities  Act" means the Securities Act of 1933, as amended
from time to time.

                  2. Demand Registration. (a) If at any time Holders that in the
aggregate  beneficially  own a  majority  of  the  Registrable  Securities  then
outstanding  (the  "Majority")  shall request the Company in writing to register
under the Securities  Act all or a part of the  Registrable  Securities  held by
such Holders (a "Demand  Registration"),  the Company  shall use all  reasonable
efforts to cause to be filed (but in no event later than the 45th day after such
Holders'  request  is  made)  and  declared  effective  as  soon  as  reasonably
practicable  thereafter,  a registration  statement, on such appropriate form as
the Company in its  discretion  shall  determine,  providing for the sale of all
such Registrable  Securities held by the Majority. The Company agrees to use its
best efforts to keep any such registration  statement continuously effective and
usable for resale of  Registrable  Securities for a period of 180 days following
the  effective  date  of such  registration  statement.  The  Company  shall  be
obligated  to file two  registration  statements  pursuant to this  Section 2(a)
covering such Registrable Securities. Each registration statement filed pursuant
to this  Section  2(a) is  hereinafter  referred  to as a  "Demand  Registration
Statement."



                                                  2

<PAGE>



                  (b) The Company agrees (i) not to effect any public or private
sale, distribution or purchase of any of its securities which are the same as or
similar to the Registrable Securities, including a sale pursuant to Regulation D
under the  Securities  Act but  excluding  a private  sale in the  context of an
acquisition  and any purchases of Common Stock related to the issuance of Common
Stock or rights  under any of the  Company's  benefit  plans for its  directors,
officers or employees or the Company's  dividend  reinvestment  plan, during the
15-day period prior to, and during the 45-day  period  beginning on, the closing
date of each underwritten offering under any Demand Registration Statement,  and
(ii) to use  reasonable  best  efforts  to cause each  holder of its  securities
purchased  from the Company,  at any time on or after the date of this Agreement
(other than in a registered  public  offering) to agree not to effect any public
sale or distribution of any such  securities  during such period,  excluding any
sales by directors or officers pursuant to Rule 144 under the Securities Act.

                  (c) The Company may postpone for a reasonable  period of time,
not  to  exceed  60  days,  the  filing  or  the  effectiveness  of  any  Demand
Registration  Statement  if the Board of  Directors of the Company in good faith
determines that (A) such  registration  might have a material  adverse effect on
any plan or proposal by the Company with respect to any financing,  acquisition,
recapitalization,  reorganization  or  other  material  transaction,  or (B) the
Company is in possession of material  non-public  information  that, if publicly
disclosed,   could  result  in  a  material  disruption  of  a  major  corporate
development  or  transaction  then  pending or in progress or in other  material
adverse consequences to the Company.

                  (d) If at any time the  Majority  desires to sell  Registrable
Securities  in an  underwritten  offering,  such Holders shall have the right to
select any nationally  recognized  investment  banking firm(s) to administer the
offering,  subject to the approval of the Company,  which  approval shall not be
unreasonably withheld, and the Company shall enter into underwriting  agreements
with the  underwriter(s)  of such offering,  which agreements shall contain such
representations and warranties by the Company, and such other terms,  conditions
and  indemnities  as are at  the  time  customarily  contained  in  underwriting
agreements for similar offerings.


                                                  3

<PAGE>




                  3.  Incidental  Registration.  Subject to the other  terms and
conditions  set forth in this Section 3, if the Company  proposes at any time to
register any shares of Common Stock (the "Initially  Proposed Shares") under the
Securities  Act for sale,  whether or not for its own  account,  pursuant  to an
underwritten  offering,  the Company will  promptly  give written  notice to the
Holders of its  intention to effect such  registration  (such notice to specify,
among  other  things,  the  proposed  offering  price,  the kind and  number  of
securities  proposed  to  be  registered  and  the  distribution   arrangements,
including  identification  of the  underwriter(s)),  and the  Holders  shall  be
entitled  to  include  in  such  registration  statements,  as a  part  of  such
underwritten  offering,  such number of shares (the "Holder Shares") to be
sold for the  account of the Holders  (on the same terms and  conditions  as the
Initially  Proposed  Shares)  as shall be  specified  in a  request  in  writing
delivered  to the  Company  within 15 days after the date upon which the Company
gave the aforementioned notice.

                  The Company's  obligations to include Holder Shares in a
registration  statement  pursuant  to this  Section 3 is  subject to each of the
following limitations, conditions and qualifications:

                           (i) If, at any time after  giving  written  notice of
         its intention to effect a  registration  of any of its shares of Common
         Stock and prior to the  effective  date of any  registration  statement
         filed in connection with such registration, the Company shall determine
         for any reason not to register all of such shares,  the Company may, at
         its election,  give written notice of such determination to the Holders
         and thereupon it shall be relieved of its obligation to use any efforts
         to  register  any  Holder  Shares  in  connection   with  such  aborted
         registration.

                           (ii)   If,   in   the   opinion   of   the   managing
         underwriter(s) of such offering, the distribution of all or a specified
         portion  of the  Holder  Shares  would  materially  interfere  with the
         registration  and sale, in accordance with the intended method thereof,
         of the Initially  Proposed Shares,  then the number of Holder Shares to
         be included  in such  registration  statement  shall be reduced to such
         number, if any, that, in the opinion of such manag-


                                                  4

<PAGE>



         ing  underwriter(s),  can be included  without such  interference.  The
         shares of Common Stock to be included  therein shall be  apportioned as
         follows:  (i) first,  the Company and any holders of  securities of the
         Company  (other than the Holders)  exercising  any demand  registration
         right  granted to such holders shall be entitled to register all shares
         of Common Stock that the Company or such other holders  propose to sell
         for their own account, in such proportion as they shall agree upon; and
         (ii) second,  the Holders shall be entitled to register,  on a pro rata
         basis  (based on the number of shares of Common  Stock  proposed  to be
         registered by each),  up to that number of Registrable  Securities that
         is equal to the  remaining  number of shares of Common  Stock  that the
         managing underwriter(s) will permit to be registered in connection with
         such  offering.  If,  as a  result  of the  cutback  provisions  of the
         preceding sentences, the Holders are not entitled to include all of the
         Holder Shares in such registration,  such Holders may elect to withdraw
         their  request  to  include  Holder  Shares  in  such  registration  (a
         "Withdrawal Election").

                  If the Company shall so request in writing, each Holder agrees
not to effect any  public or private  sale or  distribution  of any  Registrable
Securities  (other than the Holder Shares) during the 15-day period prior to and
during the 45-day  period  beginning  on, the closing  date of any  underwritten
public  offering  of shares of Common  Stock  made for the  Company's own
account.

                  4.  Registration  Procedures.  (a)  Whenever  the  Company  is
required  to use all  reasonable  efforts  to  effect  the  registration  of any
Registrable  Securities  under  the  Securities  Act  pursuant  to the terms and
conditions of Section 2(a) or 3 (such  Registrable  Securities being hereinafter
referred to as "Subject Shares"), the Company will use all reasonable efforts to
effect the  registration  and sale of the Subject Shares in accordance  with the
intended method of disposition  thereof.  Without limiting the generality of the
foregoing, the Company will as soon as practicable:

                           (i) prepare and file with the Securities and Exchange
         Commission  (the "SEC") a  registration  statement  with respect to the
         Subject Shares in form


                                                  5

<PAGE>



         and substance  satisfactory to the Holders of the Subject  Shares,  and
         use all  reasonable  efforts to cause such  registration  statement  to
         become effective as soon as possible;

                           (ii)  prepare  and file with the SEC such  amendments
         and supplements to such registration  statement and the prospectus used
         in connection  therewith as may be necessary to keep such  registration
         statement  effective for the  applicable  period and to comply with the
         provisions of the Securities Act with respect to the disposition of all
         Subject  Shares  and  other  securities  covered  by such  registration
         statement;

                           (iii)   furnish   the   Holders   covered   by   such
         registration statement, without charge, such number of conformed copies
         of  such  registration   statement  and  of  each  such  amendment  and
         supplement  thereto (in each case including all exhibits),  such number
         of copies of the  prospectus  included in such  registration  statement
         (including each preliminary prospectus), such documents incorporated by
         reference in such registration statement or prospectus,  and such other
         documents, as such Holders may reasonably request;

                           (iv)  use  all  reasonable  efforts  to  register  or
         qualify the Subject Shares covered by such registration statement under
         the securities or blue sky laws of such  jurisdictions  as the managing
         underwriter(s) shall reasonably recommend, which jurisdictions shall be
         limited to jurisdictions  within the United States,  and do any and all
         other acts and things which may be reasonably necessary or advisable to
         enable the Holders to consummate the disposition in such  jurisdictions
         of the Subject Shares covered by such  registration  statement,  except
         that the  Company  shall not for any such  purpose be  required  to (A)
         qualify  generally  to do  business  as a  foreign  corporation  in any
         jurisdiction  wherein it is not so  qualified,  (B)  subject  itself to
         taxation  in any  jurisdiction  wherein  it is not so  subject,  or (C)
         consent to general  service  of  process  in any such  jurisdiction  or
         otherwise take any action that would subject it to the general


                                                  6

<PAGE>



         jurisdiction of the courts of any jurisdiction in
         which it is not so subject;

                           (v) otherwise use its best efforts to comply with all
         applicable rules and regulations of the SEC;

                           (vi)  furnish,   at  the  Company's  expense,
         unlegended certificates  representing ownership of the securities being
         sold in such  denominations  as shall be  requested  and  instruct  the
         transfer agent to release any stop transfer  orders with respect to the
         Subject Shares being sold;

                           (vii)   notify   each  Holder  at  any  time  when  a
         prospectus  relating to the Subject  Shares is required to be delivered
         under the  Securities  Act of the happening of any event as a result of
         which the prospectus  included in such Registration  Statement contains
         any untrue  statement  of a material  fact or omits to state a material
         fact  necessary  to make  the  statements  therein  (in the case of the
         prospectus or any preliminary prospectus, in light of the circumstances
         under which they were made) not  misleading,  and the Company  will, as
         promptly as practicable  thereafter,  prepare and file with the SEC and
         furnish a  supplement  or  amendment  to such  prospectus  so that,  as
         thereafter   delivered  to  the   purchasers  of  Subject  Shares  such
         prospectus will not contain any untrue  statement of a material fact or
         omit to  state  a  material  fact  required  to be  stated  therein  or
         necessary to make the statements therein not misleading;

                           (viii) enter into customary agreements  (including an
         underwriting agreement in customary form in the case of an underwritten
         offering) and make such  representations  and warranties to the sellers
         and  underwriter(s)  as in form and substance and scope are customarily
         made by issuers to underwriters in underwritten offerings and take such
         other actions as the Holders or the managing  underwriter(s)  or agent,
         if any,  reasonably  require in order to  expedite  or  facilitate  the
         disposition of such Subject Shares;



                                                  7

<PAGE>



                           (ix) make  available  for  inspection by the Holders,
         any underwriter or agent  participating in any disposition  pursuant to
         such  Registration  Statement,  and any  attorney,  accountant or other
         similar   professional   advisor   retained  by  any  such  holders  or
         underwriter   (collectively  the  "Inspectors"),  all  pertinent
         financial  and  other  records,   pertinent   corporate  documents  and
         properties of the Company (collectively, the "Records"), as shall
         be reasonably  necessary to enable them to exercise their due diligence
         responsibility,  and cause the Company's officers,  directors and
         employees to supply all  information  reasonably  requested by any such
         Inspector in connection with such Registration  Statement.  The Holders
         agree that Records and other information which the Company  determines,
         in good  faith,  to be  confidential  and of  which  determination  the
         Inspectors  are so notified  shall not be disclosed  by the  Inspectors
         unless (i) the  disclosure  of such  Records is  necessary  to avoid or
         correct a misstatement or omission in the Registration Statement,  (ii)
         the release of such  Records is ordered  pursuant to a subpoena,  court
         order or regulatory or agency request or (iii) the  information in such
         Records has been  generally  disseminated  to the  public.  Each Holder
         agrees that it will,  upon learning  that  disclosure of such Record is
         sought  in a  court  of  competent  jurisdiction  or by a  governmental
         agency,  give  notice to the  Company  and allow  the  Company,  at the
         Company's expense,  to undertake  appropriate  action to prevent
         disclosure of the Records deemed confidential;

                           (x) in the case of an underwritten  offering,  obtain
         for delivery to the Company,  the  underwriter(s)  or their agent, with
         copies  to  the  Holders,  a  "cold  comfort"  letter  from  the
         Company's  independent  public  accountants in customary form and
         covering  such  matters  of  the  type  customarily  covered  by  "cold
         comfort" letters as the Holders or the  managing  underwriter(s)
         reasonably request;

                           (xi) in the case of an underwritten offering,  obtain
         for  delivery to the Holders and the  underwriter(s)  or their agent an
         opinion or opinions from counsel for the Company in customary form and


                                                  8

<PAGE>



         reasonably satisfactory to the Holder, underwriters
         or agents and their counsel;

                           (xii) make available to its security holders earnings
         statements,  which need not be audited,  satisfying  the  provisions of
         Section 11(a) of the Securities Act no later than 90 days after the end
         of the 12-month period beginning with the first month of the Company's
         first  quarter   commencing  after  the  effective  date  of  the
         Registration  Statement,  which  earnings  statements  shall cover said
         12-month period;

                           (xiii)  make every  reasonable  effort to prevent the
         issuance  of  any  stop  order  suspending  the  effectiveness  of  the
         registration  statement or of any order  preventing or  suspending  the
         effectiveness   of  such   registration   statement   at  the  earliest
         practicable moment;

                           (xiv) cause the Subject Shares to be registered  with
         or approved by such other  governmental  agencies or authorities within
         the United States as may be necessary to enable the sellers  thereof or
         the  underwriters(s),  if any, to consummate  the  disposition  of such
         Subject Shares;

                           (xv)  cooperate  with the  Holders  and the  managing
         underwriter(s),  if any, or any other  interested  party (including any
         interested  broker-dealer) in making any filings or submission required
         to be  made,  and the  furnishing  of all  appropriate  information  in
         connection  therewith,  with the  National  Association  of  Securities
         Dealers, Inc. ("NASD");

                           (xvi)  cause  its  significant  subsidiaries  to take
         action  necessary  to effect the  registration  of the  Subject  Shares
         contemplated   hereby,   including   filing  any   required   financial
         information;

                           (xvii)  effect the listing of the  Subject  Shares on
         the New York Stock Exchange or such other national  securities exchange
         or  over-the-counter  market on which  shares of the Common Stock shall
         then be listed; and



                                                  9

<PAGE>



                           (xviii) take all other steps  necessary to effect the
         registration of the Subject Shares contemplated hereby.

                           (b)  The Holders shall provide (in writing
and signed by the Holders and stated to be  specifically  for use in the related
registration  statement,  preliminary  prospectus,  prospectus or other document
incident thereto) all such information and materials and take all such action as
may be required  in order to permit the  Company to comply  with all  applicable
requirements of the SEC and any applicable  state  securities laws and to obtain
any desired  acceleration  of the effective date of any  registration  statement
prepared and filed by the Company pursuant to this Agreement.

                           (c)      The Holders shall, if requested by
the Company or the  managing  underwriter(s)  in  connection  with any  proposed
registration and distribution pursuant to this Agreement,  (i) agree to sell the
Subject Shares on the basis provided in any  underwriting  arrangements  entered
into in connection  therewith and (ii) complete and execute all  questionnaires,
powers of attorney,  indemnities,  underwriting  agreements and other  documents
customary in similar offerings.

                           (d)      Upon receipt of any notice from the
Company that the Company has become  aware that the  prospectus  (including  any
preliminary prospectus) included in any registration statement filed pursuant to
Section  2(a) or 3, as  then in  effect,  contains  any  untrue  statement  of a
material fact or omits to state any material fact required to be stated  therein
or necessary to make the statements  therein not  misleading,  the Holders shall
forthwith discontinue disposition of Subject Shares pursuant to the registration
statement  covering  the same until the  Holders'  receipt of copies of a
supplemented or amended  prospectus and, if so directed by the Company,  deliver
to the Company (at the Company's expense) all copies other than permanent
file copies then in the Holder's  possession,  of the prospectus  covering
the Subject Shares that was in effect prior to such amendment or supplement.

                           (e)  The Holders shall pay all out-of-pocket 
expenses incurred in connection with any Demand Registration Statements filed
pursuant to Section


                                                 10

<PAGE>



2(a) of this  Agreement,  including,  without  limitation,  all SEC and blue sky
registration and filing fees (including NASD fees), printing expenses,  transfer
agents and  registrars' fees,  underwriting  discounts,  commissions  and
expenses attributable to securities sold for the account of the Holders pursuant
to such  registration  statement,  fees and disbursements of the Company's
counsel  and  accountants  and fees and  disbursements  of  experts  used by the
Company in connection with such  registration  statement.  The Company shall pay
any such  out-of-pocket  expenses  incurred in connection with any  registration
statement filed pursuant to Section 3 of this Agreement, except that the Holders
shall pay all underwriting  discounts,  commissions and expenses attributable to
the Holder  Shares sold  pursuant  to any such  registration  statement  and the
incremental  portion of the SEC  registration  and filing  fees  relating to the
Holder Shares.

                           (f)  In connection with any sale of Sub-
ject Shares that are registered pursuant to this Agreement,  the Company and the
Holders  shall enter into an  agreement  providing  for  indemnification  of the
Holders by the Company,  and  indemnification of the Company by the Holders,  on
terms customary for such  agreements at that time (it being  understood that any
disputes  arising as to what is  customary  shall be  resolved by counsel to the
underwriter(s)).

                  5.  Notices.  Any notice or other  communication  required  or
permitted to be given  hereunder  shall be in writing and shall be effective (a)
upon hand  delivery or delivery by telex  (with  correct  answerback  received),
telecopy or facsimile at the address or number designated below (if delivered on
a  business  day  during  normal  business  hours  where  such  notice  is to be
received), or the first business day following such delivery (if delivered other
than on a business day during normal  business  hours where such notice is to be
received)  or (b) on the third  business  day  following  the date of mailing by
express  courier  service,  fully  prepaid,  addressed to such address,  or upon
actual service, fully prepaid, addressed to such address, or upon actual receipt
of  such  mailing,   whichever  shall  first  occur.   The  addresses  for  such
communications shall be:


                  If to the Company, to:


                                                 11

<PAGE>




                  P.O. Box 5024
                  One State Street
                  Hartford, CT
                  06102-5024
                  Attn:  Roberta O'Brien
                  Telecopy:  (860) 722-5710

                  If to ERC, to:

                  5200 Metcalf
                  P.O. Box 2991
                  Overland Park, KS
                  66201-1391
                  Attn: John Connelley
                  Telecopy: (913) 676-5483

                  If to any other  Holder,  to such name at such address as such
                  Holder shall have indicated in a written  notice  delivered to
                  the other parties to this Agreement.

Any party hereto may from time to time change its address for notices under this
Section 5 by giving at least 10 days' notice of such  changes to the other
parties hereto.

                  6. Waivers. No waiver by any party of any default with respect
to any  provision,  condition  or  requirement  hereof  shall be  deemed to be a
continuing  waiver in the  future  thereof  or a waiver of any other  provision,
condition or requirement hereof; nor shall any delay or omission of any party to
exercise any right hereunder in any manner impair the exercise of any such right
accruing to it thereafter.

                  7.       Headings.  The headings herein are for convenience
only,  do not  constitute  a part of this Agree- ment and shall not be deemed to
limit or affect any of the provisions hereof.

                  8.       Successors and Assigns; Amendments.  This
Agreement  shall be binding  upon and inure to the  benefit of the  parties  and
their  successors  and assigns,  includ- ing without  limitation and without the
need for an ex- press assignment to each subsequent  Holder of any Regis- trable
Securities.  Except as provided in this  Section 8,  neither the Company nor any
Holder shall assign this Agreement or any rights hereunder without the prior


                                                 12

<PAGE>



written consent of the other parties  hereto.  The assignment by a party of this
Agreement or any rights hereunder shall not affect the obligations of such party
hereunder.  This  Agreement  may not be amended  except by a written  instrument
executed by the parties hereto.

                  9. No Third Party  Beneficiaries.  This  Agreement is intended
for the benefit of the parties hereto and their respective  permitted successors
and  assigns  and is not for the  benefit  of, nor may any  provision  hereof be
enforced by, any other person.

                  10.  Governing  Law. This  Agreement  shall be governed by and
construed and enforced in accordance  with the internal laws of the State of New
York; without regard to the principles of conflicts of laws.

                  12.  Entire  Agreement.  This  Agreement  contains  the entire
agreement  of the  parties  hereto in respect of the subject  matter  hereof and
supersedes  all prior  agreements  and  understandings  between the parties with
respect to the subject matter hereof.

                  13.  Execution.  This Agreement may be executed in two or more
counterparts,  all of which shall be considered  one and the same  agreement and
shall  become  effective  when  counterparts  have been signed by each party and
delivered to the other  party,  it being  understood  that both parties need not
sign the same counterpart.



                                                 13

<PAGE>


                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed by their respective  authorized officers as of the
date hereof.


                                    HSB GROUP, INC.



                                       By: /s/ Saul L. Basch
                                      Name: Saul L. Basch
                                     Title: Senior Vice President, Treasurer
                                            and Chief Financial Officer



                                    EMPLOYERS REINSURANCE CORPORATION



                                       By: /s/ John M. Connelly
                                      Name: John M. Connelly
                                     Title: Senior Vice President, General
                                            Counsel & Secretary


                                    ERC LIFE REINSURANCE CORPORATION


                                       By: /s/ John M. Connelly
                                      Name: John M. Connelly
                                     Title: General Counsel


0154453.03-01S7a
                                                    14

<PAGE>





© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission