AMERICAN PORTABLE TELECOM INC
8-K, 1996-11-29
RADIOTELEPHONE COMMUNICATIONS
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                                    FORM 8-K

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                 CURRENT REPORT

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

       Date of Report (Date of earliest event reported): November 4, 1996


                           Aerial Communications, Inc.
             (Exact name of registrant as specified in its charter)


   Delaware                 0-28262                  39-1706857
(State or other          (Commission               (IRS Employer
jurisdiction of          File Number)            Identification No.)    
incorporation) 


   8410 West Bryn Mawr, Suite 1100, Chicago, Illinois         60631
         (Address of principal executive offices)           (Zip Code)

Registrant's telephone number, including area code:  (773) 399-4200


                                 Not Applicable
          (Former name or former address, if changed since last report)








<PAGE>




Item 5.   Other Events.

         This  Current  Report  on Form 8-K is being  filed for the  purpose  of
filing  the Trust  Indenture  Agreement  dated  November  4, 1996,  between  the
Company, as issuer, Telephone and Data Systems, Inc., as guarantor and The First
National Bank of Chicago,  as trustee related to the $226,245,000  Series A Zero
Coupon Notes Due 2006.


Item 7.           Financial Statements and Exhibits

(c)      Exhibits

         The exhibits  accompanying  this report are listed in the  accompanying
Exhibit Index.




                                        2

<PAGE>



                                   SIGNATURES


         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, thereto duly authorized.


Date:    November 29, 1996         AERIAL COMMUNICATIONS, INC.
                                   (Registrant)





                                   By: /s/ J. Clarke  Smith
                                      ________________________________________
                                   J. Clarke Smith
                                   Vice President - Finance and Administration,
                                   Chief Financial Officer and Treasurer












                                        3

<PAGE>




                                  EXHIBIT INDEX


Exhibit        
Number         Description of Exhibit

  4.1          The Trust Indenture between the Company as issuer, Telephone
               and Data Systems, Inc. as guarantor, and The First National Bank
               of Chicago, as trustee for the Company's $226,245,000 Series A
               Zero Coupon Notes Due 2006.



                                        4

<PAGE>




- -------------------------------------------------------------------------------
                                                             Exhibit 4.1








                        American Portable Telecom, Inc.,
                                    as Issuer



                        Telephone and Data Systems, Inc.,
                                  as Guarantor


                                       AND


                       The First National Bank of Chicago,
                                   as Trustee


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


                                    Indenture


                          Dated as of November 4, 1996


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


                                  $226,245,000

                       Series A Zero Coupon Notes Due 2006


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


<PAGE>



                                TABLE OF CONTENTS

                                                             Page
                                                             ----
                                   ARTICLE ONE

                                   DEFINITIONS

SECTION 1.1   Certain Terms Defined..........................  2
              Agent Member...................................  2
              Authenticating Agent...........................  2
              Board of Directors.............................  2
              Board Resolution...............................  2
              Business Day...................................  2
              Capital Stock..................................  3
              Capitalized Rent...............................  3
              Consolidated Capitalization....................  3
              Corporate Trust Office.........................  3
              Debt      .....................................  4
              Definitive Notes...............................  4
              Depositary.....................................  4
              Event of Default...............................  4
              Exchange Act...................................  4
              Funded Debt....................................  4
              Guarantee .....................................  4
              Global Note....................................  4
              Guarantor .....................................  4
              Government Obligations.........................  5
              Holder    .....................................  5
              Holder of Notes................................  5
              Noteholder.....................................  5
              IAI       .....................................  5
              Indenture .....................................  5
              Indenture Obligations..........................  5
              Issuer    .....................................  6
              Issuer Order...................................  6
              Issue Price....................................  6
              Lien      .....................................  6
              Material Adverse Effect........................  6
              Notes     .....................................  6
              Notes Custodian................................  6
              Officer   .....................................  6
              Officers' Certificate..........................  6
              Opinion of Counsel.............................  7
              Original Issue Discount........................  7
              Outstanding....................................  7



                                        i



<PAGE>


                                                             Page
                                                             ----
              Paying Agent...................................  8
              Person    .....................................  8
              Principal Amount at Maturity...................  8
              QIB       .....................................  8
              Redemption Price...............................  8
              Registrar .....................................  8
              Responsible Officer............................  8
              Sale and Leaseback Transaction.................  9
              Secured Debt...................................  9
              SEC       .....................................  9
              Securities Act.................................  9
              Subsidiary.....................................  9
              subsidiary.....................................  9
              Successor Company..............................  9
              Tax Consolidated Subsidiary....................  10
              Transfer Restricted Notes......................  10
              Trustee   .....................................  10
              Wholly Owned Subsidiary........................  10

                                   ARTICLE TWO

                                    THE NOTES

SECTION 2.1  Form and Dating................................. 10
SECTION 2.2  Execution and Authentication.................... 12
SECTION 2.3  Registrar and Paying Agent...................... 13
SECTION 2.4  Paying Agent To Hold Money in Trust............. 13
SECTION 2.5  Transfer and Exchange........................... 14
SECTION 2.6  Replacement Notes............................... 20
SECTION 2.7  Temporary Notes and Certificated
             Notes........................................... 21
SECTION 2.8  Cancellation.................................... 22
SECTION 2.9  CUSIP Numbers................................... 22

                                  ARTICLE THREE

                    COVENANTS OF THE ISSUER AND THE GUARANTOR

SECTION 3.1  Payment of Notes................................ 23
SECTION 3.2  Offices for Payments, etc....................... 23
SECTION 3.3  Appointment to Fill a Vacancy in
             Office of Trustee............................... 24
SECTION 3.4  Paying Agents................................... 24



                                       ii



<PAGE>


                                                             Page
                                                             ----
SECTION 3.5  Written Statement to Trustee.................... 25
SECTION 3.6  Limitation on Secured Debt...................... 26
SECTION 3.7  Limitation on Sale and Leaseback................ 28
SECTION 3.8  Voting Control of the Issuer.................... 31
SECTION 3.9  Insurance   .................................... 31

                                  ARTICLE FOUR

                          NOTEHOLDERS LISTS AND REPORTS
                          BY THE ISSUER AND THE TRUSTEE

SECTION 4.1  Issuer to Furnish Trustee Names and
             Addresses of Noteholders........................ 31
SECTION 4.2  Preservation and Disclosure of
             Noteholders Lists............................... 32
SECTION 4.3  Reports by the Issuer and the
             Guarantor....................................... 33
SECTION 4.4  Reports by the Trustee.......................... 34

                                  ARTICLE FIVE

                     REMEDIES OF THE TRUSTEE AND NOTEHOLDERS
                               ON EVENT OF DEFAULT

SECTION 5.1  Event of Default Defined;
             Acceleration of Maturity;
             Waiver of Default............................... 36
SECTION 5.2  Collection of Indebtedness by
             Trustee; Trustee May Prove Debt................. 40
SECTION 5.3  Application of Proceeds......................... 42
SECTION 5.4  Suits for Enforcement........................... 43
SECTION 5.5  Restoration of Rights on Abandonment
             of Proceedings.................................. 43
SECTION 5.6  Limitations on Suits by Noteholders............. 44
SECTION 5.7  Unconditional Right of Noteholders
             to Institute Certain Suits...................... 45
SECTION 5.8  Powers and Remedies Cumulative; Delay
             or Omission Not Waiver of Default............... 45
SECTION 5.9  Control by Holders of the Notes................. 45
SECTION 5.10 Waiver of Past Defaults......................... 46
SECTION 5.11 Trustee to Give Notice of Default,
             But May Withhold in Certain
             Circumstances................................... 47



                                       iii



<PAGE>


                                                             Page
                                                             ----
SECTION 5.12 Right of Court to Require Filing
             of Undertaking to Pay Costs..................... 47

                                   ARTICLE SIX

                             CONCERNING THE TRUSTEE

SECTION 6.1  Duties and Responsibilities of the
             Trustee; During Default; Prior
             to Default...................................... 48
SECTION 6.2  Certain Rights of the Trustee................... 49
SECTION 6.3  Trustee Not Responsible for Recitals,
             Disposition of the Notes or
             Application of Proceeds Thereof................. 51
SECTION 6.4  Trustee and Agents May Hold Notes;
             Collections, etc................................ 51
SECTION 6.5  Moneys Held by Trustee.......................... 51
SECTION 6.6  Compensation and Indemnification
             of Trustee and Its Prior Claim.................. 52
SECTION 6.7  Right of Trustee to Rely on Officers'
             Certificate, etc................................ 53
SECTION 6.8  Qualification of Trustee; Conflicting
             Interests....................................... 53
SECTION 6.9  Persons Eligible for Appointment
             as Trustee...................................... 61
SECTION 6.10 Resignation and Removal; Appointment
             of Successor Trustee............................ 61
SECTION 6.11 Acceptance of Appointment by
             Successor Trustee............................... 63
SECTION 6.12 Merger, Conversion, Consolidation or
             Succession to Business of Trustee............... 64
SECTION 6.13 Preferential Collection of Claims
             Against the Issuer.............................. 65
SECTION 6.14 Appointment of Authenticating
             Agent........................................... 70

                                  ARTICLE SEVEN

                           CONCERNING THE NOTEHOLDERS

SECTION 7.1  Evidence of Action Taken by
             Noteholders..................................... 71




                                       iv



<PAGE>


                                                             Page
                                                             ----
SECTION 7.2  Proof of Execution of Instruments
             and of Holding of Notes......................... 72
SECTION 7.3  Holders to be Treated as Owners................. 72
SECTION 7.4  Notes Owned by Issuer Deemed Not
             Outstanding..................................... 72
SECTION 7.5  Right of Revocation of Action Taken............. 73

                                  ARTICLE EIGHT

                             SUPPLEMENTAL INDENTURES

SECTION 8.1  Supplemental Indentures Without
             Consent of Noteholders.......................... 74
SECTION 8.2  Supplemental Indentures With Consent
             of the Noteholders.............................. 76
SECTION 8.3  Effect of Supplemental Indenture................ 77
SECTION 8.4  Documents to Be Given to Trustee................ 78
SECTION 8.5  Notation on Notes in Respect of
             Supplemental Indentures......................... 78

                                  ARTICLE NINE

                    CONSOLIDATION, MERGER, SALE OR CONVEYANCE

SECTION 9.1  Covenant of the Guarantor and the
             Issuer Not to Merge, Consolidate,
             Sell or Convey Property Except
             Under Certain Conditions........................ 78
SECTION 9.2  Notes to be Secured in Certain
             Events.......................................... 80
SECTION 9.3  Successor Company Substituted................... 80
SECTION 9.4  Officers' Certificate and Opinion of
             Counsel Delivered to Trustee.................... 81

                                   ARTICLE TEN

                          SATISFACTION AND DISCHARGE OF
                           INDENTURE; UNCLAIMED MONEYS

SECTION 10.1  Satisfaction and Discharge of
              Indenture...................................... 81
SECTION 10.2  Application by Trustee of Funds
              Deposited for Payment of Notes................. 86



                                        v



<PAGE>


                                                             Page
                                                             ----
SECTION 10.3  Repayment of Moneys Held by Paying
              Agent.......................................... 86
SECTION 10.4  Return of Moneys Held by Trustee and
              Paying Agent Unclaimed for Two Years
                ............................................. 87
SECTION 10.5  Indemnity for Government Obligations
                ............................................. 87
SECTION 10.6  Reinstatement.................................. 88

                                 ARTICLE ELEVEN

                            MISCELLANEOUS PROVISIONS

SECTION 11.1  Incorporators, Stockholders,
              Officers and Directors of Issuer and
              Guarantor Exempt from Individual
              Liability...................................... 88
SECTION 11.2  Provisions of Indenture for the Sole
              Benefit of Parties and Holders of
              Notes.......................................... 89
SECTION 11.3  Successors and Assigns of Issuer or
              Guarantor Bound by Indenture................... 89
SECTION 11.4  Notices and Demands on Issuer, the
              Guarantor, Trustee and Holders of
              Notes.......................................... 89
SECTION 11.5  Officers' Certificates and Opinions
              of Counsel; Statements to be
              Contained Therein.............................. 90
SECTION 11.6  Payments Due on Saturdays, Sundays
              and Holidays................................... 92
SECTION 11.7  Illinois Law to Govern......................... 92
SECTION 11.8  Counterparts................................... 92
SECTION 11.9  Effect of Headings............................. 92

                                 ARTICLE TWELVE

                               REDEMPTION OF NOTES

SECTION 12.1  Right to Redeem; Notices to Trustee............ 92
SECTION 12.2  Notice of Redemption; Partial
              Redemptions.................................... 93
SECTION 12.3  Payment of Notes Called for
              Redemption..................................... 94



                                        vi



<PAGE>


                                                             Page
                                                             ----
SECTION 12.4  Exclusion of Certain Notes from
              Eligibility for Selection for
              Redemption..................................... 95

                                ARTICLE THIRTEEN

                                    GUARANTEE

SECTION 13.1  Telephone and Data Systems, Inc.
              Guarantee...................................... 96
SECTION 13.2  Continuing Guarantee; No Right of
              Set-Off; Independent Obligation................ 96
SECTION 13.3  Guarantee Unconditional........................ 97
SECTION 13.4  Right to Demand Full Performance............... 100
SECTION 13.5  Waivers    .................................... 101
SECTION 13.6  The Guarantor Remains Obligated in
              the Event the Issuer is No Longer
              Obligated to Discharge Indenture
              Obligations.................................... 102
SECTION 13.7  Subrogation.................................... 102
SECTION 13.8  Guarantee Is In Addition to Other
              Security....................................... 103
SECTION 13.9  Release of Security Interests.................. 103
SECTION 13.10 No Bar to Further Actions...................... 103
SECTION 13.11 Failure to Exercise Rights Shall Not
              Operate As a Waiver; No Suspension
              of Remedies.................................... 103
SECTION 13.12 Release of Guarantee........................... 104
SECTION 13.13 Execution of Guarantee......................... 104
SECTION 13.14 Guarantee Unsecured Unsubordinated
              Indebtedness of Guarantor...................... 105
- ---------------

EXHIBIT A                         Form of Note



                                       vii



<PAGE>



                THIS INDENTURE dated as of November 4, 1996 (the
"Indenture") among American Portable Telecom,  Inc., a Delaware corporation,  as
issuer (the "Issuer"), Telephone and Data Systems, Inc., an Iowa corporation, as
Guarantor (the "Guarantor"),  and The First National Bank of Chicago, as trustee
(the "Trustee").

                              W I T N E S S E T H :

                WHEREAS, the Issuer has duly authorized the issue
of the  Series A Zero  Coupon  Notes Due  November  1, 2006 (the  "Notes)  up to
$226,245,000 principal amount at maturity.

                   WHEREAS, the Issuer has duly authorized the
execution and delivery of this Indenture to provide, among
other things, for the authentication, delivery and
administration of the Notes;

                 WHEREAS, the Guarantor has duly authorized the
full and  unconditional  guarantee by the Guarantor,  when and as the same shall
become  due and  payable,  of the  Issuer's  due  and  punctual  payment  of its
obligations  under  this  Indenture  and the  Notes,  whether  at  maturity,  by
declaration of acceleration, upon redemption or otherwise; and

                 WHEREAS, all things necessary to make this
Indenture a valid indenture and agreement according to its
terms have been done;

                 NOW, THEREFORE:

                 In consideration of the premises and the purchases
of the Notes by the holders thereof,  the Issuer,  the Guarantor and the Trustee
mutually  covenant  and agree for the equal  and  proportionate  benefit  of the
respective Holders from time to time of the Notes as follows:

<PAGE>

                                   ARTICLE ONE

                                   DEFINITIONS

                  SECTION 1.1  Certain Terms Defined.  The following
terms (except as otherwise expressly provided or unless the
context otherwise clearly requires) for all purposes of this Indenture and of 
any indenture supplemental hereto shall have the respective meanings specified
in this Section.  All accounting  terms used herein and not otherwise expressly 
defined shall have the meanings assigned to such terms in accordance with 
generally accepted accounting  principles,  and the term  "generally  accepted 
accounting  principles"  means  such  accounting principles as are generally  
accepted at the time of any computation.  The words "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. The 
terms defined in this Article include the plural as well as the singular.

                 "Agent Member" shall have the meaning set forth in
Section 2.1(b).

                "Authenticating Agent" shall have the meaning set
forth in Section 6.14.

                "Board of Directors" means the Board of Directors
of the Issuer or the Guarantor, as the case may be, or any
committee of such Board duly authorized to act on its
behalf.

                 "Board Resolution" means a copy of one or more
resolutions,  certified by the secretary or an assistant secretary of the Issuer
or the Guarantor,  as the case may be, to have been duly adopted or consented to
by the Board of  Directors of the Issuer or the  Guarantor,  as the case may be,
and to be in full force and effect, and delivered to the Trustee.

                 "Business Day" means, with respect to the Notes, a
day on which, in any city  where  amounts  are  payable on the Notes as therein
specified,  banking  institutions  are  not  authorized  or  required  by law or
regulation to close.




                                        2



<PAGE>



                 "Capital Stock" means and includes any and all
shares,  interests,  participations or other equivalents (however designated) of
ownership in a corporation or other Person.

                 "Capitalization" means with respect to any Person
the total of (a) Funded Debt, (b) the par value or, in the case of Capital Stock
with no par value,  a value stated on the books,  of all  outstanding  shares of
Capital Stock,  (c) the paid-in surplus and retained  earnings (or minus the net
surplus deficit, as the case may be), (d) deferred taxes and deferred investment
tax credits, (e) Capitalized Rent and (f) minority interests in subsidiaries, of
such Person.  Notwithstanding  the foregoing,  for purposes of the definition of
"Event of Default," "Capitalization" shall have the meaning set forth in Section
5.1 hereof.

                 "Capitalized Rent" means the present value
(discounted semi-annually at the yield to maturity on the Notes, calculated from
the date of issuance  thereof)  of the total net amount of rent  payable for the
remaining  term of any lease of property by the Guarantor  (including any period
for which such lease has been extended);  provided, however, that no such rental
obligation shall be deemed to be Capitalized Rent unless the lease resulted from
a Sale and Leaseback Transaction. The total net amount of rent payable under any
lease for any period shall be the total amount of the rent payable by the lessee
with respect to such period but shall not include amounts required to be paid on
account of maintenance and repairs, insurance, taxes, assessments,  water rates,
sewer rates and similar charges.

                 "Consolidated Capitalization" means the
Capitalization   of  the  Guarantor  and  its   Subsidiaries   determined  on  a
consolidated  basis as of the end of the Guarantor's then most recently reported
fiscal year or quarter,  as the case may be, including minority interests in its
Subsidiaries.

                  "Corporate Trust Office" means the principal
office  of the  Trustee  at which at any  particular  time its  corporate  trust
business shall be administered,  which office at the date of original  execution
of this Indenture is located at One First National Plaza,  Suite 0126,  Chicago,
IL



                                        3



<PAGE>



60670, Attention:  Corporate Trust Administration,  except that, with respect to
presentation  of the Notes for payment or registration of transfers or exchanges
and the  location of the  register,  such term means the office or agency of the
Trustee at which at any particular  time its corporate  agency business shall be
conducted,  which at the date of original execution of this Indenture is located
at c/o First  Chicago  Trust  Company  of New York,  14 Wall  Street - 8th Floor
Window 2, New York, New York 10005.

                  "Debt" means with respect to a Person all
obligations  of such Person for borrowed  money and all such  obligations of any
other Person for borrowed money guaranteed by such Person.

                  "Definitive Notes" shall have the meaning set
forth in Section 2.1(c).

                  "Depositary" means The Depository Trust Company,
its nominees and their respective successors.

                  "Event of Default" means any event or condition
specified as such in Section 5.1.

                  "Exchange Act" means the Securities Exchange Act
of 1934 and the rules and regulations promulgated
thereunder.

                  "Funded Debt" means any Debt maturing by its terms
more than one year from its date of issuance  (notwithstanding  that any portion
of such Debt is included in current liabilities).

                  "Guarantee" means the guarantee by the Guarantor
of the Issuer's obligations under this Indenture and the
Notes, as provided in Article Thirteen.

                  "Global Note" shall have the meaning set forth in
Section 2.1(a).

                  "Guarantor" means Telephone and Data Systems,
Inc., an Iowa  corporation,  and,  subject to Article Nine,  its  successors and
assigns.




                                        4



<PAGE>



                  "Government Obligations" means securities that are
(a) direct  obligations  of the United States of America,  (b)  obligations of a
Person controlled or supervised by and acting as an agency or instrumentality of
the United  States of  America,  which,  in either  case,  are not  callable  or
redeemable  at the  option  of the  issuer  thereof,  and shall  also  include a
depository  receipt  issued by a bank (as  defined  in  Section  3(a)(2)  of the
Securities  Act of 1933,  as  amended)  as  custodian  with  respect to any such
Government  Obligation or a specific  payment of principal of or interest on any
such Government  Obligation held by such custodian for the account of the holder
of such  depository  receipt,  provided  that  (except as  provided by law) such
custodian is not authorized to make any deduction from the amount payable to the
holder of such  depository  receipt from any amount received by the custodian in
respect of such Government Obligation or the specific payment of principal of or
interest on such Government Obligation evidenced by such depository receipt.

                  "Holder", "Holder of Notes", "Noteholder" or other
similar  terms  means the  Person in whose name such Note is  registered  on the
books of the Registrar.

                  "IAI" shall have the meaning set forth in Section
2.1(c).

                  "Indenture" means this instrument as originally
executed and delivered or, if amended or supplemented as herein provided,  as so
amended or  supplemented  or both,  and shall include the forms and terms of the
Notes established, as provided hereunder.

                  "Indenture Obligations" means the obligations of
the Issuer under this  Indenture or under the Notes to pay the Principal  Amount
at Maturity,  Issue Price,  accrued Original Issue Discount and Redemption Price
on the Notes when due and  payable,  and all other  amounts due or to become due
under or in connection with this Indenture, the Notes and the performance of all
other  obligations  to the Trustee and the Holders under this  Indenture and the
Notes, according to the terms thereof.




                                        5



<PAGE>



                  "Issuer" means American Portable Telecom, Inc., a
Delaware corporation and, subject to Article Nine, its successors and assigns.

                  "Issuer Order" means a written statement, request
or order of the Issuer or the Guarantor,  as the case may be, signed in its name
by the Chairman of the Board of Directors,  the President or any Vice  President
(whether  or not  designated  by a number or  numbers  or a word or words  added
before or after the title "Vice President") and by the Treasurer,  any Assistant
Treasurer,  the  Secretary,  any  Assistant  Secretary,  the  Controller  or any
Assistant Controller of the Issuer or the Guarantor, as the case may be.

                  "Issue Price" of any Note means, in connection
with the original issuance of such Note, the initial issue price as set forth on
the face of the Note.

                  "Lien" means any mortgage, pledge, security
interest, lien, charge or other encumbrance.

                  "Material Adverse Effect" means a material adverse
effect on (a) the business, operations,  affairs, financial condition, assets or
properties  of the  Guarantor  and its  Subsidiaries  taken as a whole,  (b) the
rights and  remedies of the Holders  under this  Indenture or (c) the ability of
the Guarantor or the Issuer to perform its obligations under this Indenture.

                  "Notes" shall have the meaning set forth in the
preamble.

                  "Notes Custodian" means the custodian with respect
to a Global Note (as  appointed  by the  Depository),  or any  successor  person
thereto and shall initially be the Trustee.

                  "Officer" means the Chairman of the Board, the
President,  any Vice President,  the Treasurer or the Secretary of the Issuer or
the Guarantor, as the case may be.

                  "Officers' Certificate" means a certificate signed
by the Chairman of the Board of Directors, the President or



                                        6



<PAGE>



any Vice  President  (whether or not designated by a number or numbers or a word
or words added before or after the title "Vice President") and by the Treasurer,
any Assistant Treasurer,  the Secretary, any Assistant Secretary, the Controller
or any Assistant Controller of the Issuer or the Guarantor,  as the case may be,
and delivered to the Trustee. Each such certificate shall include the statements
provided for in Section 11.5.

                  "Opinion of Counsel" means an opinion in writing
signed by legal counsel, who may be an employee of, or counsel to, the Issuer or
the  Guarantor,  as the  case  may be.  Each  such  opinion  shall  include  the
statements provided for in Section 11.5, if and to the extent required thereby.

                  "Original Issue Discount" of any Note means the
difference  between the Issue Price and the Principal  Amount at Maturity of the
Note as set forth on the face of the Note.

                  "Outstanding", when used with reference to Notes,
shall,  subject to the  provisions of Section 7.4,  mean,  as of any  particular
time, all Notes authenticated and delivered by the Trustee under this Indenture,
except:

                  (a)       Notes theretofore cancelled by the Trustee or
         delivered to the Trustee for cancellation;

                  (b)       Subject to Article 10, Notes, or portions
         thereof,  for the payment or  redemption  of which moneys or Government
         Obligations  (as provided for in Section 10.1) in the necessary  amount
         shall have been  deposited in trust with the Trustee or with any Paying
         Agent (other than the Issuer) or shall have been set aside,  segregated
         and held in trust by the Issuer  for the  Holders of such Notes (if the
         Issuer shall act as its own Paying Agent), provided that if such Notes,
         or portions thereof,  are to be redeemed prior to the maturity thereof,
         notice of such redemption shall have been given as herein provided,  or
         provision  satisfactory  to the Trustee shall have been made for giving
         such notice; and




                                        7



<PAGE>



                  (c)       Notes which shall have been paid or in
         substitution  for which other Notes shall have been  authenticated  and
         delivered  pursuant to the terms of Section 2.6 (except with respect to
         any  such  Note  as to  which  proof  satisfactory  to the  Trustee  is
         presented  that such Note is held by a Person in whose  hands such Note
         is a legal, valid and binding obligation of the Issuer).

                  "Paying Agent" shall have the meaning set forth in
Section 2.3.

                  "Person" means any individual, corporation,
partnership,   joint  venture,   association,   joint  stock   company,   trust,
unincorporated organization or government or any agency or political subdivision
thereof.

                  "Principal Amount at Maturity" of a Note means the
Principal Amount at Maturity as set forth on the face of the Note.

                  "QIB" shall have the meaning set forth in Section
2.3.

                  "Redemption Price" shall have the meaning set
forth in paragraph 5 of the Notes.

                  "Registrar" shall have the meaning set forth in
Section 2.3.

                  "Responsible Officer", when used with respect to
the Trustee, means the chairman of the board of directors,  any vice chairman of
the board of directors, the chairman of the trust committee, the chairman of the
executive  committee,   any  vice  chairman  of  the  executive  committee,  the
president,  any vice  president  (whether or not  designated by numbers or words
added before or after the title "vice president"),  the cashier,  the secretary,
the treasurer,  any trust officer,  any assistant  trust officer,  any assistant
vice president,  any assistant cashier, any assistant  secretary,  any assistant
treasurer or any other officer or assistant  officer of the Trustee  customarily
performing  functions  similar to those performed by the persons who at the time
shall be such officers, respectively, or to whom



                                        8



<PAGE>



any  corporate  trust  matter  is  referred  because  of  his  knowledge  of and
familiarity with the particular subject.

                  "Sale and Leaseback Transaction" means any
arrangement with any Person other than a Tax Consolidated  Subsidiary  providing
for the  leasing  (as  lessee) by the  Guarantor  of any  property  (except  for
temporary  leases for a term,  including any renewal  thereof,  of not more than
three years  (provided that any such temporary  lease may be for a term of up to
five years if (a) the Board of Directors of the Guarantor  reasonably finds such
term to be in the best interest of the Guarantor and (b) the primary  purpose of
the  transaction  of which such  lease is a part is not to  provide  funds to or
financing  for the  Guarantor)),  which  property  has  been or is to be sold or
transferred  by the  Guarantor  (i)  to  any  subsidiary  of  the  Guarantor  in
contemplation  of or in connection  with such  arrangement or (ii) to such other
Person.

                  "Secured Debt" means Debt of the Guarantor secured
by any Lien on property (including Capital Stock or indebtedness of Subsidiaries
of the Guarantor) owned by the Guarantor.

                  "SEC" shall have the meaning set forth in Section
2.1(a).

                  "Securities Act" shall have the meaning set forth
in Section 2.1(a).

                  "Subsidiary" means a Person which is consolidated
with the Issuer or the Guarantor,  as applicable,  in accordance  with generally
accepted accounting principles.

                  "subsidiary" means, with respect to any Person,
any corporation, association, partnership or other business entity of which more
than 50% of the total voting power of shares of Capital Stock or other interests
(including  partnership interests) entitled (without regard to the occurrence of
any  contingency)  to vote in the  election of  directors,  managers or trustees
thereof is at the time owned or controlled,  directly or indirectly, by (i) such
Person,  (ii) such Person and one or more  subsidiaries  of such Person or (iii)
one or more subsidiaries of such Person.



                                        9



<PAGE>



                  "Successor Company" shall have the meaning set
forth in Section 9.1.

                  "Tax Consolidated Subsidiary" means a subsidiary
of the Guarantor  with which,  at the time a Sale and Leaseback  Transaction  is
entered  into by the  Guarantor,  the  Guarantor  would  be  entitled  to file a
consolidated federal income tax return.

                  "Transfer Restricted Notes" means Definitive Notes
and Notes that bear or are required to bear the legend set
forth in Section 2.5(d).

                  "Trustee" means the Person identified as "Trustee"
in the first  paragraph  hereof and,  subject to the  provisions of Article Six,
shall also include any successor trustee.

                  "Wholly Owned Subsidiary" means a Subsidiary all
the capital stock of which (other than directors' qualifying shares) is owned by
the Issuer or the Guarantor, as applicable, or another Wholly Owned Subsidiary.


                                   ARTICLE TWO

                                    THE NOTES

                  SECTION 2.1 Form and Dating.   The Notes and the
Trustee's  certificate of  authentication  shall be substantially in the form of
Exhibit A, which is hereby  incorporated  in and  expressly  made a part of this
Indenture. The Notes may have notations, legends or endorsements required by law
and agreements to which the Issuer is subject,  if any, or usage  (provided that
any such notation, legend or endorsement is in a form acceptable to the Issuer).
The  Notes  shall be dated  the date of their  authentication.  The terms of the
Notes set forth in Exhibit A are part of the terms of this Indenture.

                  (a)       Global Notes.  The Notes offered and sold to
"qualified  institutional  buyers" (as defined in Rule 144A under the Securities
Act) (each a "QIB") or in  reliance on  Regulation  S under the  Securities  Act
("Regulation  S") shall be issued  initially in the form of one permanent global
Note



                                       10



<PAGE>



in definitive,  fully  registered form without  interest coupons with the global
Note  legend and  restricted  Note  legend  set forth in  Exhibit A hereto  (the
"Global  Note"),  which shall be  deposited on behalf of the  purchasers  of the
Notes represented thereby with the Trustee, at its New York office, as custodian
for the Depository (or with such other  custodian as the Depository may direct),
and  registered in the name of the  Depository  or a nominee of the  Depository,
duly executed by the Issuer and the Guarantor and  authenticated  by the Trustee
as  hereinafter  provided.  The  aggregate  Principal  Amount at Maturity of the
Global Note may from time to time be increased or decreased by adjustments  made
on the records of the Trustee and the  Depository or its nominee as  hereinafter
provided.

                  (b)       Book-Entry Provisions.  This Section 2.1(b)
shall apply only to the Global Note deposited with or on
behalf of the Depository.

                  The Issuer and the Guarantor shall execute and the
Trustee shall, in accordance with this Section 2.1(b),  authenticate and deliver
initially  one  Global  Note  that (a)  shall be  registered  in the name of the
Depository  or the nominee of the  Depository  and (b) shall be delivered by the
Trustee to the Depository or pursuant to the  Depository's  instructions or held
by the Trustee as custodian for the Depository.

                  Members of, or participants in, the Depository
("Agent  Members") shall have no rights under this Indenture with respect to the
Global  Note held on their  behalf by the  Depository  or by the  Trustee as the
custodian of the Depository or under such Global Note, and the Depository may be
treated by the Issuer, the Trustee and any agent of the Issuer or the Trustee as
the  absolute   owner  of  such  Global  Note  for  all   purposes   whatsoever.
Notwithstanding  the  foregoing,  nothing  herein shall prevent the Issuer,  the
Trustee  or any agent of the Issuer or the  Trustee  from  giving  effect to any
written certification,  proxy or other authorization furnished by the Depository
or impair,  as between the Depository  and its Agent  Members,  the operation of
customary practices of such Depository governing the exercise of the rights of a
Holder of a beneficial interest in the Global Note.



                                       11



<PAGE>



                  (c)       Certificated Notes.  Except as provided in
this Section or Section 2.5 or 2.7, owners of beneficial interests in the Global
Note will not be entitled to receive  physical  delivery of certificated  Notes.
Purchasers  of  the  Notes  who  are  institutional  "accredited  investors"  as
described in Rule  501(a)(1),  (2), (3) or (7) under the Securities Act (each an
"IAI")  and who are not QIBs and did not  purchase  Notes  sold in  reliance  on
Regulation S will receive  certificated Notes bearing the restricted Note legend
set forth in  Exhibit A hereto  (such  securities  as held by an IAI are  herein
referred to as "Definitive  Notes");  provided,  however,  that upon transfer of
such  certificated  Notes  to  a  QIB  or  in  reliance  on  Regulation  S  such
certificated  Notes will,  unless the Global Note has previously been exchanged,
be exchanged  for an interest in the Global Note  pursuant to the  provisions of
Section 2.5.  Definitive Notes will bear the restricted Note legend set forth on
Exhibit A unless removed in accordance with Section 2.5(d).

                  SECTION 2.2 Execution and Authentication.   Two
Officers  shall sign the Notes for the Issuer by manual or facsimile  signature.
The Issuer's  seal shall be impressed,  affixed,  imprinted or reproduced on the
Notes and may be in facsimile  form.  The Guarantee  shall be executed by one of
the  Officers of the  Guarantor  under its  corporate  seal  reproduced  thereon
attested by its Secretary or one of its Assistant Secretaries.

                  If an Officer whose signature is on a Note no
longer holds that office at the time the Trustee  authenticates the Note,  the
Note shall be valid nevertheless.

                  A Note shall not be valid until an authorized
signatory of the Trustee or a duly appointed Authenticating Agent manually signs
the certificate of authentication on the Note. The signature shall be conclusive
evidence that the Note has been authenticated under this Indenture.

                  The Trustee or duly appointed Authenticating Agent
shall authenticate and deliver Notes for issue in an aggregate  Principal Amount
at Maturity of  $226,245,000  upon a written  order of the Issuer  signed by two
Officers or by an Officer and either an Assistant Treasurer or an Assistant



                                       12



<PAGE>



Secretary of the Issuer.  Such order shall specify the amount of the Notes to be
authenticated  and the date on which the issue of Notes is to be  authenticated.
The aggregate  Principal Amount at Maturity of Notes outstanding at any time may
not exceed $226,245,000, except as provided in Section 2.6.

                  SECTION 2.3 Registrar and Paying Agent. The
Issuer  shall  maintain  an office or agency  where Notes may be  presented  for
registration  of transfer or for  exchange  (the  "Registrar")  and an office or
agency  where Notes may be  presented  for payment  (the  "Paying  Agent").  The
Registrar shall keep a register of the Notes and of their transfer and exchange.
The Issuer may have one or more  co-registrars and one or more additional paying
agents. The term "Paying Agent" includes any additional paying agent.

                  The Issuer shall enter into an appropriate agency
agreement with any Registrar,  Paying Agent or co-registrar  not a party to this
Indenture.  The agreement  shall implement the provisions of this Indenture that
relate to such  agent.  The  Issuer  shall  notify  the  Trustee of the name and
address of any such agent. If the Issuer fails to maintain a Registrar or Paying
Agent,  the  Trustee  shall act as such and  shall be  entitled  to  appropriate
compensation  therefor  pursuant  to  Section  6.6.  The  Issuer  or  any of its
domestically  incorporated  Wholly Owned  Subsidiaries  may act as Paying Agent,
Registrar, co-registrar or transfer agent.

                  SECTION 2.4 Paying Agent To Hold Money in Trust.
Prior to each due date of  payments  in  respect of any Note,  the Issuer  shall
deposit with the Paying Agent a sum  sufficient  to make such  payments  when so
becoming  due.  The Issuer  shall  require  each  Paying  Agent  (other than the
Trustee) to agree in writing  that the Paying  Agent shall hold in trust for the
benefit of Noteholders or the Trustee all money held by the Paying Agent for the
making of payments  in respect of the Notes and shall  notify the Trustee of any
default by the Issuer in making any such payments. If the Issuer or a Subsidiary
acts as Paying  Agent,  it shall  segregate the money held by it as Paying Agent
and hold it as a  separate  trust  fund.  The  Issuer at any time may  require a
Paying  Agent to pay all money held by it to the  Trustee and to account for any
funds disbursed by



                                       13



<PAGE>



the Paying Agent.  Upon complying with this Section, the
Paying Agent shall have no further liability for the money
delivered to the Trustee.

                  SECTION 2.5 Transfer and Exchange. (a) Transfer
and Exchange of Definitive Notes.  When Definitive Notes are
presented to the Registrar or a co-registrar with a request:

                  (x)   to register the transfer of such Definitive
         Notes; or

                  (y)   to exchange such Definitive Notes for an
         equal Principal Amount at Maturity of Definitive Notes
         of other authorized denominations,

the Registrar or  co-registrar  shall register the transfer or make the exchange
as requested if the requirements of this Indenture are met;  provided,  however,
that the Definitive Notes surrendered for transfer or exchange:

                  i)        shall be duly endorsed or accompanied by a
         written  instrument of transfer in form reasonably  satisfactory to the
         Issuer and the Registrar or  co-registrar,  duly executed by the Holder
         thereof or such Holder's attorney duly authorized in writing; and

                  ii)       are being transferred or exchanged pursuant
         to Section 2.5(b) or pursuant to clause (A), (B) or (C) below,  and are
         accompanied by the following additional  information and documents,  as
         applicable:

                            (A) if  such  Definitive  Notes  are
                      being  delivered to the  Registrar by a Holder
                      for  registration  in the name of such Holder,
                      without  transfer,  a certification  from such
                      Holder to that  effect  (in the form set forth
                      on the reverse of the Note); or

                            (B)      if such Definitive Notes are being
                      transferred to the Issuer a certification to that
                      effect (in the form set forth on the reverse of
                      the Note); or




                                       14



<PAGE>



                            (C) if  such  Definitive  Notes  are
                      being  transferred  pursuant  to an  exemption
                      from  registration in accordance with Rule 144
                      or Regulation S under the Securities  Act: (i)
                      a certificate  to that effect (in the form set
                      forth on the reverse of the Note), and (ii) if
                      the Issuer or Registrar so requests,  evidence
                      reasonably  satisfactory  to  them  as to  the
                      compliance with the  restrictions set forth in
                      the legend set forth in Section 2.5(d)(i).

                      (b)       Restrictions on Transfer of a Definitive Note
for a  Beneficial  Interest in the Global  Note.  A  Definitive  Note may not be
exchanged for a beneficial  interest in the Global Note except upon satisfaction
of the requirements set forth below. Upon receipt by the Trustee of a Definitive
Note,  duly endorsed or accompanied by appropriate  instruments of transfer,  in
form satisfactory to the Trustee, together with:

                      i)        certification, in the form set forth on the
         reverse of the Note, that such Definitive Note is being  transferred to
         a QIB in  accordance  with Rule 144A under the  Securities  Act or to a
         non-U.S.  person in accordance  with Rule 904 under the Securities Act;
         and

                      ii)       written instructions directing the Trustee to
         make,  or to direct the Notes  Custodian to make,  an adjustment on its
         books and  records  with  respect  to such  Global  Note to  reflect an
         increase  in the  aggregate  Principal  Amount at Maturity of the Notes
         represented by the Global Note,

then the Trustee  shall  cancel such  Definitive  Note and cause,  or direct the
Notes  Custodian to cause,  in  accordance  with the standing  instructions  and
procedures  existing  between  the  Depository  and  the  Notes  Custodian,  the
aggregate  Principal Amount at Maturity of Notes  represented by the Global Note
to be increased accordingly.  If no Global Note is then outstanding,  the Issuer
shall issue and the Trustee shall authenticate, upon written order of the Issuer
in the form of an Officers'  Certificate,  a new Global Note in the  appropriate
Principal Amount at Maturity.




                                       15



<PAGE>



                      (c)       Transfer and Exchange of Global Note.

                       i)  The transfer and exchange of the Global Note
         or  beneficial   interests   therein  shall  be  effected  through  the
         Depository,  in accordance  with this Indenture  (including  applicable
         restrictions  on transfer set forth herein,  if any) and the procedures
         of the Depository therefor, if applicable.

                      ii)  Notwithstanding any other provisions of this
         Indenture  (other than the  provisions  set forth in Section 2.7),  the
         Global Note may not be  transferred as a whole except by the Depository
         to a nominee of the Depository or by a nominee of the Depository to the
         Depository or another nominee of the Depository or by the Depository or
         any  such  nominee  to a  successor  Depository  or a  nominee  of such
         successor Depository.

                    iii) In the event that the Global Note is
         exchanged  for Notes in  definitive  form pursuant to Section 2.7, such
         Notes may be exchanged only in accordance  with such  procedures as are
         substantially  consistent  with  the  provisions  of this  Section  2.5
         (including the  certification  requirements set forth on the reverse of
         the Notes intended to ensure that such transfers  comply with Rule 144A
         or Regulation  S, as the case may be) and such other  procedures as may
         from time to time be adopted by the Issuer.

                     (d)       Legend.

                     i) Except as permitted by the following
         paragraph  (ii), each Note  certificate  evidencing the Global Note and
         the  Definitive  Notes (and all Notes  issued in  exchange  therefor or
         substitution   thereof)  shall  bear  a  legend  in  substantially  the
         following form:

                 "THIS NOTE (OR ITS PREDECESSOR) WAS ORIGINALLY
         ISSUED IN A  TRANSACTION  EXEMPT  FROM  REGISTRATION  UNDER THE  UNITED
         STATES  SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES  ACT"), AND
         UNDER  APPLICABLE  STATE  SECURITIES  LAWS,  AND  THIS  NOTE MAY NOT BE
         OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH



                                       16



<PAGE>



         REGISTRATION OR AN APPLICABLE  EXEMPTION  THEREFROM.  EACH PURCHASER OF
         THIS  NOTE IS  HEREBY  NOTIFIED  THAT THE  SELLER  OF THIS  NOTE MAY BE
         RELYING  ON THE  EXEMPTION  FROM THE  PROVISIONS  OF  SECTION  5 OF THE
         SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

                THE HOLDER OF THIS NOTE AGREES FOR THE BENEFIT OF
         THE  ISSUER  THAT (A) THIS  NOTE MAY BE  OFFERED,  RESOLD,  PLEDGED  OR
         OTHERWISE TRANSFERRED,  ONLY (i) TO A PERSON WHOM THE SELLER REASONABLY
         BELIEVES  IS A QUALIFIED  INSTITUTIONAL  BUYER (AS DEFINED IN RULE 144A
         UNDER THE SECURITIES ACT) IN A TRANSACTION  MEETING THE REQUIREMENTS OF
         RULE 144A, (ii) IN AN OFFSHORE  TRANSACTION IN ACCORDANCE WITH RULE 904
         UNDER  THE  SECURITIES   ACT,  (iii)  PURSUANT  TO  AN  EXEMPTION  FROM
         REGISTRATION  UNDER THE  SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER
         (IF AVAILABLE) OR (iv) PURSUANT TO AN EFFECTIVE  REGISTRATION STATEMENT
         UNDER  THE  SECURITIES  ACT,  IN  EACH OF  CASES  (i)  THROUGH  (iv) IN
         ACCORDANCE  WITH ANY  APPLICABLE  SECURITIES  LAWS OF ANY  STATE OF THE
         UNITED STATES,  AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT  HOLDER IS
         REQUIRED  TO,  NOTIFY ANY  PURCHASER  OF THIS  SECURITY  FROM IT OF THE
         RESALE RESTRICTIONS REFERRED TO IN (A) ABOVE."

                   When set forth on a Definitive Note, the
legend will include the following additional words:

                "IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL
         DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH
         CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER
         AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE
         TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS."

                   ii) Upon any sale or transfer of a Transfer
         Restricted Note (including any Transfer  Restricted Note represented by
         a Global Note) pursuant to Rule 144 under the Securities Act:

                       (A) in  the  case  of  any  Transfer
                   Restricted Note that is a Definitive Note, the
                   Registrar  shall permit the Holder  thereof to
                   exchange such Transfer  Restricted  Note for a
                   certificated  Note  that  does  not  bear  the
                   legend set forth above and



                                       17



<PAGE>



                   rescind any restriction on the transfer of such
                   Transfer Restricted Note;

                        (B) in  the  case  of  any  Transfer
                    Restricted  Note  that is  represented  by the
                    Global Note,  the  Registrar  shall permit the
                    Holder  thereof to request  the  issuance of a
                    certificated  Note  that  does  not  bear  the
                    legend  set  forth   above  and   rescind  any
                    restrictions  on the transfer of such Transfer
                    Restricted  Note,  if the sale or exchange was
                    made in  reliance  on Rule 144 and the  Holder
                    certifies  to that  effect in  writing  to the
                    Registrar  (such  certification  to be in  the
                    form set forth on the reverse of the Note).

                    (e) Cancellation or Adjustment of Global Note.
At such time as all  beneficial  interests  in the Global  Note have either been
exchanged for  certificated  Notes,  redeemed,  repurchased  or cancelled,  such
Global Note shall be returned to the Depository for cancellation or retained and
cancelled  by the  Trustee.  At any  time  prior  to such  cancellation,  if any
beneficial  interest in the Global Note is  exchanged  for  certificated  Notes,
redeemed,  repurchased or cancelled,  the Principal  Amount at Maturity of Notes
represented by such Global Note shall be reduced and an adjustment shall be made
by the Trustee or the Notes Custodian to reflect such reduction on the books and
records of the Notes  Custodian for such Global Note with respect to such Global
Note.

                     (f) Obligations with Respect to Transfers and
Exchanges of Notes.

                          i)   To   permit   registration   of
                     transfers  and  exchanges,  the Issuer and the
                     Guarantor  shall execute and the Trustee shall
                     authenticate  certificated  Notes,  Definitive
                     Notes and the Global  Note at the  Registrar's
                     or co-registrar's request.
                     

                          ii) The Issuer may  require  payment
                      of  a  sum   sufficient   to  pay  all  taxes,
                      assessments or other  governmental  charges in
                      connection   with  any  transfer  or  exchange
                      pursuant to this Section 2.5.




                                       18



<PAGE>



                          iii) The Issuer  shall not be  required to
                      make and the  Registrar or  co-registrar  need
                      not   register   transfers   or  exchanges  of
                      certificated or Definitive  Notes selected for
                      redemption   (except,   in  the  case  of  any
                      Definitive  Note to be redeemed  in part,  the
                      portion  thereof not to be  redeemed),  or any
                      Notes  for  a  period  of  15  days  before  a
                      selection of Notes to be so redeemed.

                          iv)  Prior  to the due  presentation
                      for  registration of transfer of any Note, the
                      Issuer,  the Trustee,  the Paying  Agent,  the
                      Registrar  or any  co-registrar  may  deem and
                      treat  the  person  in  whose  name a Note  is
                      registered as the absolute  owner of such Note
                      for  the  purpose  of  receiving  payments  in
                      respect   of  such  Note  and  for  all  other
                      purposes whatsoever,  whether or not such Note
                      is  overdue,  and  none  of  the  Issuer,  the
                      Trustee,  the Paying  Agent,  the Registrar or
                      any  co-registrar  shall be affected by notice
                      to the contrary.

                          v)  All   Notes   issued   upon  any
                      transfer or exchange  pursuant to the terms of
                      this Indenture will evidence the same debt and
                      will be  entitled to the same  benefits  under
                      this Indenture as the Notes  surrendered  upon
                      such transfer or exchange.

                      (g)       No Obligation of the Trustee.

                          i)  The   Trustee   shall   have  no
                      responsibility or obligation to any beneficial
                      owner of the  Global  Note,  a member of, or a
                      participant  in the Depository or other Person
                      with respect to the accuracy of the records of
                      the  Depository  or  its  nominee  or  of  any
                      participant or member thereof, with respect to
                      any  ownership  interest  in the Notes or with
                      respect to the  delivery  to any  participant,
                      member,   beneficial  owner  or  other  Person
                      (other  than  the  Depository)  of any  notice
                      (including  any notice of  redemption)  or the
                      payment of any amount,  under or with  respect
                      to such Notes. All notices and  communications
                      to be given to the Holders and all payments to
                      be made to  Holders  under the Notes  shall be
                      given or made



                                       19



<PAGE>



                      only to or upon the order of the registered
                      Holders (which shall be the Depository or its
                      nominee in the case of the Global Note). The
                      rights of beneficial owners in the Global Note
                      shall be exercised only through the Depository
                      subject to the applicable rules and procedures
                      of the  Depository.  The  Trustee may rely and
                      shall  be  fully  protected  in  relying  upon
                      information  furnished by the Depository  with
                      respect to its members,  participants  and any
                      beneficial owners.

                          ii)  The   Trustee   shall  have  no
                      obligation  or duty to monitor,  determine  or
                      inquire as to compliance with any restrictions
                      on transfer  imposed  under this  Indenture or
                      under  applicable  law  with  respect  to  any
                      transfer   of  any   interest   in  any   Note
                      (including  any  transfers  between  or  among
                      Depository participants, members or beneficial
                      owners  in the  Global  Note)  other  than  to
                      required  delivery  of such  certificates  and
                      other   documentation   or   evidence  as  are
                      expressly  required  by,  and  to do so if and
                      when expressly  required by, the terms of this
                      Indenture,   and  to   examine   the  same  to
                      determine  substantial  compliance  as to form
                      with the express requirements hereof.

                      SECTION 2.6 Replacement Notes.  If a mutilated
Note is  surrendered to the Registrar or if the Holder of a Note claims that the
Note has been lost,  destroyed or wrongfully  taken, the Issuer shall issue, the
Guarantor shall execute and the Trustee shall authenticate a replacement Note if
the Holder  satisfies any reasonable  requirements  of the Trustee.  Such Holder
shall furnish an indemnity  bond  sufficient in the judgment of the Issuer,  the
Guarantor and the Trustee to protect the Issuer, the Guarantor, the Trustee, the
Paying Agent, the Registrar and any co-registrar from any loss which any of them
may suffer if a Note is  replaced.  The Issuer  and the  Trustee  may charge the
Holder for their expenses in replacing a Note.

                      Every replacement Note is an additional obligation
of the Issuer and the Guarantor evidencing the same debt as
the Note for which it is a replacement.



                                       20



<PAGE>



                      All Notes shall be held and owned upon the express
condition  that, to the extent  permitted by law, the foregoing  provisions  are
exclusive  with respect to the  replacement  or payment of  mutilated,  defaced,
destroyed,  lost or stolen Notes and shall  preclude any and all other rights or
remedies notwithstanding any law or statute existing or hereafter enacted to the
contrary with respect to the replacement or payment of negotiable instruments or
other securities without their surrender.

                 SECTION 2.7 Temporary Notes and Certificated
Notes.         (a) Until definitive Notes are ready for delivery, the Issuer may
prepare,  the  Guarantor  shall  execute  and  the  Trustee  shall  authenticate
temporary  Notes.  Temporary  Notes  shall  be  substantially  in  the  form  of
definitive Notes but may have variations that the Issuer  considers  appropriate
for temporary Notes.  Without  unreasonable delay, the Issuer shall prepare, the
Guarantor shall execute and the Trustee shall authenticate  definitive Notes and
deliver them in exchange for temporary Notes.

                (b)  The Global Note deposited  with  the Depository or with 
the  Trustee as  custodian  for the  Depository  pursuant to  Section  2.1
shall  be  transferred  to  the  beneficial   owners  thereof  in  the  form  of
certificated  Notes in an aggregate  Principal  Amount at Maturity  equal to the
Principal  Amount at Maturity of such Global  Note,  in exchange for such Global
Note,  only if such transfer  complies  with Section 2.5 and (i) the  Depository
notifies the Issuer that it is unwilling or unable to continue as Depository for
such  Global  Note or if at any time such  Depository  ceases to be a  "clearing
agency"  registered  under the  Exchange Act and a successor  depository  is not
appointed by the Issuer within 90 days of such notice,  (ii) an Event of Default
has  occurred and is  continuing  or (iii) the Issuer,  in its sole  discretion,
notifies  the  Trustee  in  writing  that it  elects to cause  the  issuance  of
certificated Notes under this Indenture.

                (c) Any  Global  Note  that  is  transferable  to  the
beneficial  owners thereof  pursuant to this Section shall be surrendered by the
Depository to the Corporate  Trust Office of the Trustee  located in the Borough
of Manhattan, The City of New York, to be so transferred,  in whole or from time
to time in part, without charge, and the Trustee shall



                                                   21



<PAGE>



authenticate  and  deliver,  upon such  transfer of each  portion of such Global
Note,  an equal  aggregate  Principal  Amount at Maturity of Notes of authorized
denominations.  Any  portion of the Global  Note  transferred  pursuant  to this
Section shall be executed,  authenticated and delivered only in denominations of
$1,000 and any integral  multiple  thereof and  registered  in such names as the
Depository  shall direct.  Any Note delivered in exchange for an interest in the
Global Note shall,  except as  otherwise  provided by Section  2.5(d),  bear the
restricted notes legend set forth in Exhibit A hereto.

                 (d) Subject to the provisions of Section 2.7(c),
the  registered  Holder of the  Global  Note may  grant  proxies  and  otherwise
authorize any person, including agent members, participants and persons that may
hold  interests  through  agent  members,  to take any action  which a Holder is
entitled to take under this Indenture or the Notes.

                 (e) In the event of the occurrence of any of the
events  specified in Section 2.7(b),  the Issuer will promptly make available to
the Trustee a  reasonable  supply of  certificated  Notes in  definitive,  fully
registered form.

                      SECTION 2.8  Cancellation.  The Issuer at any time
may deliver Notes to the Trustee for cancellation.  The Registrar and the Paying
Agent  shall  forward  to  the  Trustee  any  Notes   surrendered  to  them  for
registration of transfer, exchange or payment. The Trustee and no one else shall
cancel all Notes surrendered for registration of transfer,  exchange, payment or
cancellation and deliver such cancelled Notes to the Issuer.  The Issuer may not
issue new Notes to  replace  Notes it has  redeemed,  paid or  delivered  to the
Trustee for cancellation.

                      SECTION 2.9  CUSIP Numbers.  The Issuer in issuing
the Notes may use "CUSIP"  numbers (if then  generally in use),  and, if so, the
Trustee shall use "CUSIP"  numbers in notices of redemption 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 Notes or as
contained in any notice of a redemption  and that reliance may be placed only on
the other identification numbers printed on the Notes, and any such



                                       22



<PAGE>



redemption  shall not be affected by any defect in or omission of such  numbers.
The Issuer will promptly notify the Trustee of any change in the CUSIP numbers.


                                  ARTICLE THREE

                    COVENANTS OF THE ISSUER AND THE GUARANTOR

                      SECTION 3.1 Payment of Notes.    The Issuer
covenants  and agrees for the benefit of the  Noteholders  that it will duly and
punctually  make all  payments  in  respect of the Notes on the dates and in the
manner provided in the Notes or pursuant to this Indenture.  Principal Amount at
Maturity,  Issue Price,  accrued  Original Issue Discount,  Redemption Price and
interest, if any, shall be considered paid on the applicable date due if on such
date the Trustee or the Paying Agent holds,  in accordance  with this Indenture,
money or securities, if permitted hereunder,  sufficient to pay all such amounts
then due and the  Trustee  or the  Paying  Agent,  as the  case  may be,  is not
prohibited pursuant to the terms of this Indenture from paying such money to the
Noteholders on that date.

                      SECTION 3.2  Offices for Payments, etc.   So long
as Notes are outstanding  hereunder,  the Issuer will maintain in the Borough of
Manhattan,  The City of New York,  an  office  or agency  where the Notes may be
presented  for payment or for exchange as provided in this  Indenture  and where
the Notes may be  presented  for  registration  of  transfer as provided in this
Indenture.

                      The Issuer and the Guarantor will maintain in the
Borough of  Manhattan,  The City of New York,  an office or agency where notices
and  demands to or upon the Issuer or the  Guarantor  in respect of the Notes or
this Indenture may be served.

                      The Issuer and the Guarantor will give to the
Trustee  written notice of the location of each such office or agency and of any
change of location  thereof.  In case the Issuer or the Guarantor  shall fail to
maintain  any  office or agency  required  by this  Section to be located in the
Borough of Manhattan, The City of New York, or shall



                                       23



<PAGE>



fail to give such notice of the location or of any change in the location of any
of the above  offices or  agencies,  presentations  and  demands may be made and
notices may be served at the Corporate Trust Office of the Trustee.

                      The Issuer may from time to time designate one or
more  additional  offices  or  agencies  where the Notes  may be  presented  for
payment,  where the Notes may be  presented  for  exchange  as  provided in this
Indenture and where the Notes may be presented for  registration  of transfer as
provided  in this  Indenture,  and the Issuer may from time to time  rescind any
such  designation;  provided,  however,  that no such  designation or rescission
shall in any manner  relieve the Issuer of its obligation to maintain any office
or agency  required to be provided for in this Section.  The Issuer will give to
the Trustee prompt written notice of any such designation or rescission thereof.

                      SECTION 3.3   Appointment to Fill a Vacancy in
Office of Trustee. The Issuer,  whenever necessary to avoid or fill a vacancy in
the office of Trustee,  will appoint,  in the manner provided in Section 6.10, a
Trustee, so that there shall at all times be a Trustee with respect to the Notes
hereunder.

                      SECTION 3.4   Paying Agents.   Whenever the Issuer
shall  appoint a Paying Agent other than the Trustee  with respect to Notes,  it
will cause such Paying Agent to execute and deliver to the Trustee an instrument
in which such agent shall agree with the Trustee,  subject to the  provisions of
this Section:

                         (a)  that  it  will  hold  all  sums
                      received  by it as such agent for  payments in
                      respect of the Notes  (whether  such sums have
                      been   paid  to  it  by  the   Issuer  or  the
                      Guarantor)  in trust  for the  benefit  of the
                      Holders of the Notes or of the Trustee, and

                         (b) that it will  give  the  Trustee
                      notice  of any  failure  by the  Issuer or the
                      Guarantor  to make any  payments in respect of
                      the  Notes  when  the  same  shall  be due and
                      payable, and




                                       24



<PAGE>



                         (c)  that  at any  time  during  the
                      continuance of any such failure referred to in
                      the  foregoing  paragraph  (b),  it will  upon
                      written  request of the Trustee  forthwith pay
                      to the  Trustee  all  sums so held in trust by
                      such agent.

                      The Issuer will, on or prior to each due date of
payments in respect of any Notes, deposit with the Paying Agent a sum sufficient
to make such  payment so  becoming  due,  and (unless  such Paying  Agent is the
Trustee) the Issuer will promptly notify the Trustee of any failure to take such
action.

                      If the Issuer shall act as its own Paying Agent
with  respect to the Notes,  it will,  on or before each due date of payments in
respect of any Notes, set aside,  segregate and hold in trust for the benefit of
the Holders of the Notes a sum  sufficient  to pay such payment so becoming due.
The Issuer will promptly notify the Trustee of any failure to take such action.

                      Anything in this section to the contrary
notwithstanding,  but subject to Section 10.1,  the Issuer may at any time,  for
the purpose of obtaining a satisfaction  and discharge with respect to the Notes
hereunder,  or for any other reason,  pay or cause to be paid to the Trustee all
sums held in trust for the Notes by the Issuer or any Paying Agent hereunder, as
required by this  Section,  such sums to be held by the  Trustee  upon the trust
herein contained.

                      Anything in this Section to the contrary
notwithstanding, the agreement to hold sums in trust as provided in this Section
is subject to the provisions of Sections 10.3 and 10.4.

                      SECTION 3.5   Written Statement to Trustee. The
Guarantor  will  deliver  to the  Trustee  on or  before  April 30 in each  year
(beginning with April 30, 1997) an Officers'  Certificate (which need not comply
with Section 11.5) stating that in the course of the  performance by the signers
of their duties as officers of the Guarantor  they would normally have knowledge
of any default by the Guarantor in the performance of any covenants contained in
this Indenture, stating whether or not they have knowledge of any



                                       25



<PAGE>



such default and, if so,  specifying each such default of which the signers have
knowledge and the nature thereof.

                      SECTION 3.6   Limitation on Secured Debt.   So long
as any of the Notes remain  Outstanding,  the Guarantor will not create or incur
any Secured Debt  without in any such case  effectively  providing  concurrently
with the  creation or  incurrence  of any such  Secured Debt that the Notes then
Outstanding (together with, if the Guarantor shall so determine,  any other Debt
of or guarantee by the  Guarantor  ranking  equally with the  Guarantee and then
existing or thereafter  created) shall be secured  equally and ratably with (or,
at the option of the Guarantor,  prior to) such Secured Debt, unless immediately
after the  incurrence  of such  Secured  Debt (and  after  giving  effect to the
application of the proceeds, if any, therefrom),  the aggregate principal amount
of all such Secured Debt, together with the aggregate amount of Capitalized Rent
in respect of Sale and  Leaseback  Transactions  (other than Sale and  Leaseback
Transactions described in clauses (a) to (e), inclusive,  of Section 3.7), would
not exceed  10% of  Consolidated  Capitalization;  provided,  however,  that the
foregoing  restrictions  shall not apply to,  and  there  shall be  excluded  in
computing  Secured  Debt for the  purpose  of such  restrictions,  Secured  Debt
secured by:

                      (a) Liens on property existing at the time of
         acquisition of such property by the  Guarantor,  or Liens to secure the
         payment of all or any part of the purchase  price of property  acquired
         or constructed by the Guarantor (including any improvements to existing
         property)  created  at the time of or  within  270 days  following  the
         acquisition of such property by the  Guarantor,  or Liens to secure any
         Secured  Debt  incurred  by the  Guarantor  prior to, at the time of or
         within 270 days  following  the  acquisition  of such  property,  which
         Secured Debt is incurred  for the purpose of financing  all or any part
         of the purchase price thereof;  provided,  however, that in the case of
         any  such  acquisition,  the  Lien  shall  not  apply  to any  property
         theretofore owned by the Guarantor  (including property  transferred by
         the Guarantor to any subsidiary of the Guarantor in contemplation of or
         in connection with the creation of such Lien) or to any property of the



                                       26



<PAGE>



         Guarantor  other than the property so acquired (other than, in the case
         of  construction  or  improvement,   any  theretofore  unimproved  real
         property or portion  thereof on which the property so  constructed,  or
         the improvement, is located);

                      (b)  Liens on property of a Person (i) existing at
         the time such Person is merged into or consolidated  with the Guarantor
         or at the time of a sale, lease or other  disposition of the properties
         of a Person as an  entirety  or  substantially  as an  entirety  to the
         Guarantor, (ii) resulting from such merger, consolidation,  sale, lease
         or  disposition  by  virtue  of any  Lien on  property  granted  by the
         Guarantor  prior  to  such  merger,   consolidation,   sale,  lease  or
         disposition  (and  not  in  contemplation   thereof  or  in  connection
         therewith) which applies to after-acquired property of the Guarantor or
         (iii)  resulting  from  such  merger,  consolidation,  sale,  lease  or
         disposition  pursuant  to a Lien or  contractual  provision  granted or
         entered into by such Person prior to such merger, consolidation,  sale,
         lease  or  disposition  (and  not at  the  request  of the  Guarantor);
         provided,  however,  that any such Lien referred to in clause (i) shall
         not apply to any  property  of the  Guarantor  other than the  property
         subject thereto at the time such Person or properties were acquired and
         any such Lien  referred  to in clause  (ii) or (iii) shall not apply to
         any property of the Guarantor other than the property so acquired;

                      (c)  Liens existing on the date of this Indenture;

                      (d)  Liens in favor of a government or
         governmental  entity  to  secure  partial  progress,  advance  or other
         payments, or other obligations,  pursuant to any contract or statute or
         to secure any Debt  incurred  for the purpose of  financing  all or any
         part of the cost of acquiring,  constructing  or improving the property
         subject to such Liens (including, without limitation, Liens incurred in
         connection with pollution control, industrial revenue, private activity
         bond or similar financing);




                                                   27



<PAGE>



                      (e) Liens arising by reason of deposits with, or
         the giving of any form of security to, any  governmental  agency or any
         body created or approved by law or governmental regulation,  which Lien
         is required by law or  governmental  regulation  as a condition  to the
         transaction   of  any  business  or  the  exercise  of  any  privilege,
         franchise, license or permit;

                      (f) Liens for taxes, assessments or governmental
         charges or levies not yet delinquent or governmental  charges or levies
         already  delinquent,  the  validity  of which  charge  or levy is being
         contested  in good  faith  and  for  which  any  reserves  required  in
         accordance  with generally  accepted  accounting  principles  have been
         established;

                      (g) Liens (including judgment liens) arising in
         connection with legal proceedings so long as such proceedings are being
         contested in good faith and, in the case of judgment  liens,  execution
         thereon is stayed and for which any  reserves  required  in  accordance
         with generally  accepted  accounting  principles have been established;
         and

                      (h) any extension, renewal or replacement (or
         successive extensions, renewals or replacements) in whole or in part of
         any Lien  referred to in the foregoing  clauses (a) to (g),  inclusive;
         provided,  however,  that the principal  amount of Secured Debt secured
         thereby shall not exceed the  principal  amount of Secured Debt secured
         thereby at the time of such extension, renewal or replacement, and that
         such  extension,  renewal or  replacement  shall be limited to all or a
         part of the property  which  secured the Lien so  extended,  renewed or
         replaced (plus improvements to such property).

                      SECTION 3.7 Limitation on Sale and Leaseback.
The  Guarantor  will not enter into any Sale and  Leaseback  Transaction  unless
immediately  thereafter  (and  after  giving  effect to the  application  of the
proceeds,  if any,  therefrom),  the  aggregate  amount of  Capitalized  Rent in
respect  of  Sale  and  Leaseback  Transactions,  together  with  the  aggregate
principal amount of all Secured Debt (other



                                       28



<PAGE>



than Secured Debt described in clauses (a) to (h),  inclusive,  of Section 3.6),
would not exceed 10% of Consolidated Capitalization; provided, however, that the
foregoing  restrictions  shall not apply to,  and  there  shall be  excluded  in
computing  the  aggregate  amount of  Capitalized  Rent for the  purpose of such
restrictions, the following Sale and Leaseback Transactions:

                      (a) any Sale and Leaseback Transaction entered
         into to finance the payment of all or any part of the purchase price of
         property  acquired  or  constructed  by the  Guarantor  (including  any
         improvements  to existing  property)  or entered  into prior to, at the
         time of or within 270 days after the  acquisition  or  construction  of
         such property, which Sale and Leaseback Transaction is entered into for
         the purpose of financing  all or part of the  purchase or  construction
         price  thereof;  provided,  however,  that  in the  case  of  any  such
         acquisition,  such Sale and Leaseback Transaction shall not involve any
         property  transferred  by  the  Guarantor  to  any  subsidiary  of  the
         Guarantor  in  contemplation  of or in  connection  with  such Sale and
         Leaseback  Transaction  or involve any property of the Guarantor  other
         than the property so acquired  (other than, in the case of construction
         or  improvement,  any  theretofore  unimproved real property or portion
         thereof on which the property so constructed,  or the  improvement,  is
         located);

                      (b) any Sale and Leaseback Transaction involving
         property of a Person existing at the time such Person is merged into or
         consolidated  with the  Guarantor  or at the  time of a sale,  lease or
         other  disposition  of the  properties  of a Person as an  entirety  or
         substantially as an entirety to the Guarantor;

                      (c) any Sale and Leaseback Transaction in which
         the lessor is a government  or  governmental  entity and which Sale and
         Leaseback  Transaction  is  entered  into to secure  partial  progress,
         advance  or other  payments,  or  other  obligations,  pursuant  to any
         contract or statute or to secure any Debt  incurred  for the purpose of
         financing all or any part of the cost of  constructing or improving the
         property subject to such Sale and



                                       29



<PAGE>



         Leaseback  Transaction   (including,   without  limitation,   Sale  and
         Leaseback  Transactions  incurred in connection with pollution control,
         industrial revenue, private activity bond or similar financing);

                      (d) any Sale and Leaseback Transaction involving
         the  extension,  renewal  or  replacement  (or  successive  extensions,
         renewals or  replacements) in whole or in part of a lease pursuant to a
         Sale and Leaseback Transaction referred to in the foregoing clauses (a)
         to (c),  inclusive;  provided,  however,  that  such  lease  extension,
         renewal or replacement  shall be limited to all or any part of the same
         property leased under the lease so extended,  renewed or replaced (plus
         improvements to such property); and

                      (e) any Sale and Leaseback Transaction the net
         proceeds of which are at least  equal to the fair value (as  determined
         by the Board of Directors) of the property leased pursuant to such Sale
         and Leaseback Transaction,  so long as within 270 days of the effective
         date of such Sale and Leaseback Transaction,  the Guarantor applies (or
         irrevocably  commits to an escrow  account  for the purpose or purposes
         hereinafter mentioned) an amount equal to the net proceeds of such Sale
         and Leaseback  Transaction to either (x) the purchase of other property
         having a fair value at least  equal to the fair  value of the  property
         leased  in such Sale and  Leaseback  Transaction  and  having a similar
         utility and function,  or (y) the  retirement or repayment  (other than
         any  mandatory  retirement  or repayment at maturity) of (i) the Notes,
         (ii) other  Funded Debt of the  Guarantor  which ranks prior to or on a
         parity with the Notes or (iii)  indebtedness  of any  subsidiary of the
         Guarantor  maturing  by its  terms  more than one year from its date of
         issuance  (notwithstanding that any portion of such  indebtedness  is
         included in current  liabilities)  or preferred stock of any subsidiary
         of the Guarantor (other than any such indebtedness owed to or preferred
         stock  owned by the  Guarantor  or any  subsidiary  of the  Guarantor);
         provided, however, that in lieu of applying an amount equivalent to all
         or any part of such net proceeds to such  retirement  or repayment  (or
         committing such an



                                       30



<PAGE>



         amount  to an escrow  account  for such  purpose),  the  Guarantor  may
         deliver to the Trustee  Outstanding Notes and thereby reduce the amount
         to be  applied  pursuant  to  (y)  of  this  clause  (e)  by an  amount
         equivalent to the aggregate  Principal  Amount at Maturity of the Notes
         so delivered.

                      SECTION 3.8 Voting Control of the Issuer.   The
Guarantor  shall  at  all  times  maintain  beneficial  ownership,  directly  or
indirectly through one or more Subsidiaries, of that number of shares of Capital
Stock  of the  Issuer  (or any  entity  into  which  the  Issuer  is  merged  or
consolidated  in  accordance  with Article Nine) with at least a majority of the
total voting power of the Issuer  entitled  (without regard to the occurrence of
any  contingency)  to vote in the election of directors  (or persons  performing
similar functions).

                      SECTION 3.9 Insurance.   The Guarantor shall, and
shall cause each of its Subsidiaries to,  maintain,  with financially  sound and
reputable  insurers,  insurance  with respect to its  respective  properties and
businesses  against such  casualties and  contingencies,  of such types, on such
terms   and  in  such   amounts   (including   deductibles,   co-insurance   and
self-insurance,  if adequate reserves are maintained with respect thereto) as is
customary in the case of entities of established reputations engaged in the same
or similar businesses and similarly situated.


                                  ARTICLE FOUR

                          NOTEHOLDERS LISTS AND REPORTS
                          BY THE ISSUER AND THE TRUSTEE

                      SECTION 4.1 Issuer to Furnish Trustee Names and
Addresses of Noteholders.  The Issuer  covenants and agrees that it will furnish
or cause to be  furnished  to the Trustee a list in such form as the Trustee may
reasonably require of the names and addresses of the Holders of the Notes:

                           (a)  at least semi-annually on October 15 and
                      April 15, and




                                                   31

<PAGE>


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

provided  that if and so long as the  Trustee  shall be the  Registrar  for such
Notes and such Notes are registered on the register of the Registrar,  such list
shall not be required to be furnished.

                      SECTION 4.2 Preservation and Disclosure of
Noteholders  Lists.  (a) The Trustee shall preserve,  in as current a form as is
reasonably  practicable,  all  information  as to the names and addresses of the
Holders of the Notes (i)  contained  in the most recent list  furnished to it as
provided in Section 4.1, (ii) received by it in the capacity of Registrar, if so
acting,  and (iii) filed with it within two preceding  years pursuant to Section
4.4(c)(ii).  The Trustee may  destroy  any list  furnished  to it as provided in
Section 4.1 upon receipt of a new list so furnished.

                      (b) In case three or more Holders of Notes
(hereinafter  referred to as  "applicants")  apply in writing to the Trustee and
furnish to the Trustee  reasonable  proof that each such  applicant  has owned a
Note for a period of at least six months preceding the date of such application,
and such application states that the applicants desire to communicate with other
Holders of Notes,  then the Trustee  shall,  within five Business Days after the
receipt of such application, at its election, either

                          (i) afford to such applicants access
                      to the  information  preserved  at the time by
                      the Trustee in accordance  with the provisions
                      of subsection (a) of this Section, or

                          (ii)  inform such  applicants  as to
                      the  approximate  number of Holders of all the
                      Notes whose names and addresses  appear in the
                      information  preserved  at  the  time  by  the
                      Trustee,  in accordance with the provisions of
                      such  subsection (a) and as to the approximate
                      cost of  mailing to such  Holders  the form of
                      proxy or other



                                       32



<PAGE>



                      communication, if any, specified in such
                      application.

                           If the Trustee shall elect not to afford to
such applicants access to such information,  the Trustee shall, upon the written
request of such  applicants,  mail to all  Holders of the Notes,  whose name and
address  appears  in the  information  preserved  at the time by the  Trustee in
accordance  with the  provisions  of such  subsection  (a) a copy of the form of
proxy or other communication which is specified in such request, with reasonable
promptness  after a tender to the  Trustee of the  material  to be mailed and of
payment,  or provision for the payment,  of the reasonable  expenses of mailing,
unless  within  five days  after  such  tender  the  Trustee  shall mail to such
applicants,  together  with a copy  of the  material  to be  mailed,  a  written
statement to the effect that, in the opinion of the Trustee,  such mailing would
be  contrary  to the best  interests  of the Holders of the Notes or would be in
violation of applicable law.  Such written  statement shall specify the basis of
such opinion.

                      (c)       Each and every Holder of Notes by receiving
and holding the same,  agrees with the Issuer and the Trustee  that  neither the
Issuer nor the Trustee nor any agent of the Issuer or the Trustee  shall be held
accountable by reason of the disclosure of any such  information as to the names
and  addresses  of the Holders of Notes in  accordance  with the  provisions  of
subsection  (b) of this  Section,  regardless  of the  source  from  which  such
information was derived,  and that the Trustee shall not be held  accountable by
reason of mailing any material  pursuant to a request made under such subsection
(b).

                      (d)       The Issuer shall upon written request to the
Trustee (or, if applicable,  the Registrar) be entitled to receive a list of the
Holders of any and all of the Notes.

                      SECTION 4.3 Reports by the Issuer and the
Guarantor.  The Issuer and the Guarantor covenant:

                      (a) to file with the Trustee, within 15 days
         after either the Issuer or the Guarantor is required to
         file the same with the SEC, copies of the annual



                                       33



<PAGE>



         reports and of the information,  documents and other reports (or copies
         of such  portions of any of the  foregoing  as the SEC may from time to
         time by rules and regulations prescribe) which either the Issuer or the
         Guarantor  may be  required  to file with the  Commission  pursuant  to
         Section 13 or Section 15(d) of the Exchange Act; and

                      (b) to transmit by mail to the Holders of Notes
         within 30 days after the filing thereof with the Trustee, in the manner
         and to the extent  provided in Section  4.4(c),  such  summaries of any
         information,  documents and reports  required to be filed by either the
         Issuer or the Guarantor  pursuant to subsection  (a) of this Section as
         may be  required  to be  transmitted  to  such  Holders  by  rules  and
         regulations prescribed from time to time by the SEC.

                      SECTION 4.4 Reports by the Trustee. (a) Within
60 days after May 15 of each year,  commencing  with the year 1997,  the Trustee
shall  transmit by mail to the Holders of the Notes,  as provided in  subsection
(c) of this Section, a brief report dated as of such May 15 with respect to

                      (i) its eligibility under Section 6.9 and its
         qualification  under Section 6.8, or in lieu thereof, if to the best of
         its knowledge it has continued to be eligible and qualified  under such
         Sections, a written statement to such effect;

                      (ii) the character and amount of any advances
         (and if the Trustee elects so to state, the  circumstances  surrounding
         the making  thereof)  made by the Trustee (as such) which remain unpaid
         on the date of such report and for the reimbursement of which it claims
         or may  claim a lien or  charge,  prior  to that of the  Notes,  on any
         property or funds held or collected  by it as Trustee,  except that the
         Trustee  shall not be required  (but may elect) to report such advances
         if such  advances so remaining  unpaid at any time  aggregate  not more
         than  1/2  of 1% of the  Principal  Amount  at  Maturity  of the  Notes
         Outstanding on the date of such report;




                                       34



<PAGE>



                      (iii)     the amount, interest rate and maturity
         date of all other  indebtedness owing by the Issuer or the Guarantor to
         the Trustee in its individual capacity on the date of such report, with
         a  brief  description  of any  property  held  as  collateral  security
         therefor,  except any indebtedness  based upon a creditor  relationship
         arising in any manner  described in Section  6.13 (b) (2),  (3), (4) or
         (6);

                      (iv)      the property and funds, if any, physically in
         the possession of the Trustee (as such) on the date of
         such report; and

                      (v)       any action taken by the Trustee in the
         performance  of its  duties  under  this  Indenture  which  it has  not
         previously  reported  and which in its opinion  materially  affects the
         Notes, except action in respect of a default,  notice of which has been
         or is to be withheld by it in accordance with the provisions of Section
         5.11.

                      (b)       The Trustee shall transmit to the Holders of
the Notes,  as provided in subsection  (c) of this Section,  a brief report with
respect to the character  and amount of any advances (and if the Trustee  elects
so to state,  the  circumstances  surrounding  the making  thereof)  made by the
Trustee, as such, since the date of the last report transmitted  pursuant to the
provisions of subsection  (a) of this Section (or if no such report has yet been
so transmitted, since the date of this Indenture) for the reimbursement of which
it claims or may claim a lien or charge, prior to that of the Notes, on property
or funds  held or  collected  by it as Trustee  and which it has not  previously
reported  pursuant to this  subsection (b), except that the Trustee shall not be
required (but may elect) to report such  advances if such advances  remaining at
any time aggregate 10% or less of the Principal  Amount at Maturity of the Notes
Outstanding  at such time,  such report to be  transmitted  within 90 days after
such time.

                      (c) Reports pursuant to this Section shall be
transmitted by mail:




                                       35



<PAGE>



                      (i)  to all Holders of the Notes, as the names and
         addresses of such Holders appear upon the registry
         books of the Registrar;

                      (ii) to such other Holders of Notes as have,
         within two years preceding such transmission, filed
         their names and addresses with the Trustee for that
         purpose; and

                      (iii) except in the case of reports pursuant to
         subsection  (b),  to each  Holder of a Note whose name and  address are
         preserved at the time by the Trustee as provided in Section 4.2(a).


                                  ARTICLE FIVE

                     REMEDIES OF THE TRUSTEE AND NOTEHOLDERS
                               ON EVENT OF DEFAULT

                      SECTION 5.1  Event of Default Defined;
Acceleration of Maturity;  Waiver of Default. "Event of Default",  wherever used
herein,  means each of the  following  events  which shall have  occurred and be
continuing  (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):

                      (a) default in the payment of all or any part of
         the Principal Amount at Maturity,  Issue Price,  accrued Original Issue
         Discount  or  Redemption  Price on any Note as and when the same  shall
         become due and payable,  whether at maturity,  upon any redemption,  by
         declaration or otherwise; or

                      (b) failure on the part of the Guarantor or the
         Issuer  duly to  observe  or  perform  any  other of the  covenants  or
         agreements on the part of the Guarantor or the Issuer,  as the case may
         be, in the Notes or in this Indenture contained for a period of 90 days
         after the date on which written notice specifying such failure, stating
         that such notice is a "Notice of Default"



                                       36



<PAGE>



         hereunder and demanding  that the Guarantor or the Issuer,  as the case
         may be, remedy the same, shall have been given (i) (A) in person to the
         Chairman, the President,  the Executive Vice President - Finance or the
         Treasurer of the Guarantor and the Issuer,  promptly followed by notice
         by registered  or certified  mail,  return  receipt  requested,  by the
         Trustee,  or  (B) by  registered  or  certified  mail,  return  receipt
         requested,  to the Guarantor and the Issuer by the Trustee,  or (ii) by
         registered  or  certified  mail,  return  receipt  requested,   to  the
         Guarantor,  the Issuer and the  Trustee by the Holders of not less than
         25% in aggregate Principal Amount at Maturity of the Outstanding Notes;
         or

                      (c)       the Guarantor shall fail to pay any principal
         of,  premium or interest on or any other  amount  payable in respect of
         any Debt of the Guarantor that is outstanding in an aggregate principal
         amount equal to or greater than 2% of Consolidated Capitalization, when
         the same  becomes  due and  payable  (whether  by  scheduled  maturity,
         required  prepayment,  acceleration,  demand  or  otherwise),  and such
         failure shall  continue  after the  applicable  grace  period,  if any,
         specified in the agreement or instrument  relating to such Debt; or any
         default  occurs under any  instrument  under which there is at the time
         outstanding,  or by which there may be secured or  evidenced,  any such
         Debt of the Guarantor  that is  outstanding  in an aggregate  principal
         amount equal to or greater than 2% of Consolidated Capitalization which
         results in acceleration  (whether by declaration or  automatically)  of
         such Debt; provided,  however, that it shall not constitute an Event of
         Default  hereunder as long as the Guarantor is contesting  such default
         or  acceleration  in good faith and by appropriate  proceedings  and no
         actual  acceleration of such Debt of the Guarantor shall have occurred;
         or

                      (d) the Guarantee ceases to be in full force and
         effect or the Guarantor or any Person acting on behalf
         of the Guarantor shall deny or disaffirm the
         Guarantor's obligations under the Guarantee; or




                                       37



<PAGE>



                       (e) a court having jurisdiction in the premises
         shall enter a decree or order for relief in respect of the Guarantor or
         the  Issuer in an  involuntary  case under any  applicable  bankruptcy,
         insolvency  or  other  similar  law  now or  hereafter  in  effect,  or
         appointing  a receiver,  liquidator,  assignee,  custodian,  trustee or
         sequestrator  (or similar  official) of the  Guarantor or the Issuer or
         for  any  substantial  part of the  property  of the  Guarantor  or the
         Issuer, or ordering the winding up or liquidation of the affairs of the
         Guarantor or the Issuer, and such decree or order shall remain unstayed
         and in effect for a period of 60 consecutive days; or

                       (f) the Guarantor or the Issuer shall commence a
         voluntary  case under any  applicable  bankruptcy,  insolvency or other
         similar law now or hereafter  in effect,  or consent to the entry of an
         order for relief in an involuntary  case under any such law, or consent
         to the  appointment  or taking  possession  by a receiver,  liquidator,
         assignee,  custodian,  trustee or sequestrator (or similar official) of
         the Guarantor or the Issuer or for any substantial part of the property
         of the Guarantor or the Issuer, or make any general  assignment for the
         benefit of creditors.

If an Event of  Default  (other  than an Event of  Default  described  in clause
5.1(e) or 5.1(f)) shall have occurred and be  continuing,  then, and in each and
every such case,  unless the  principal  of all of the Notes shall have  already
become due and  payable,  either the Trustee or the Holders of not less than 25%
in  aggregate  Principal  Amount at Maturity of the Notes then  Outstanding,  by
notice in writing to the  Guarantor  and the Issuer (and to the Trustee if given
by such Holders),  may declare the Issue Price of all the Notes then Outstanding
and the Original  Issue Discount  accrued to the date of such  declaration to be
due and payable immediately, and upon any such declaration the same shall become
immediately due and payable.  If an Event of Default  described in clause 5.1(e)
or 5.1(f)  shall have  occurred  and be  continuing,  the Issue Price on all the
Notes then  Outstanding  and the Original Issue Discount  accrued  thereon shall
thereby become and be immediately due and payable



                                       38



<PAGE>



without any declaration or other act on the part of the
Trustee or any Noteholders.

                 The foregoing paragraph, however, is subject to
the  condition  that if, at any time after the Issue Price and accrued  Original
Issue  Discount of the Notes shall have been so declared  due and  payable,  and
before any  judgment or decree for the payment of the moneys due shall have been
obtained or entered as hereinafter  provided,  the Guarantor or the Issuer shall
pay or shall  deposit  with the Trustee a sum  sufficient  to pay the  principal
including  accrued  Original Issue Discount of all Notes which shall have become
due otherwise than by such declaration or acceleration  (with interest upon such
amounts,  to the extent  that  payment of such  interest  is  enforceable  under
applicable  law,  at the same rate as the yield to  maturity on the Notes to the
date of such payment or deposit) and such amount as shall be sufficient to cover
reasonable  compensation to the Trustee, its agents,  attorneys and counsel, and
all other  expenses and  liabilities  incurred,  and all advances  made,  by the
Trustee except as a result of negligence or bad faith, and if any and all Events
of Default under this  Indenture,  other than the  non-payment of amounts on the
Notes which shall have become due by such  declaration  or  acceleration,  shall
have been cured, waived or otherwise remedied as provided  herein--then,  and in
every such case,  the Holders of a majority  in  aggregate  Principal  Amount at
Maturity of all the Notes then  Outstanding,  by written notice to the Guarantor
and the Issuer and to the Trustee,  may waive all defaults and rescind and annul
such  declaration  and its  consequences,  but no such waiver or rescission  and
annulment shall extend to or shall affect any subsequent default or shall impair
any right consequent thereon.

                 For purposes of the definition of "Event of
Default,"  "Capitalization"  shall mean the total of (a) Debt, (b) the par value
or, in the case of Capital Stock with no par value, a value stated on the books,
of all outstanding shares of Capital Stock, (c) the paid-in surplus and retained
earnings  (or minus the net surplus  deficit,  as the case may be), (d) deferred
taxes and deferred investment tax credits, (e) Capitalized Rent and (f) minority
interests in Subsidiaries.




                                       39



<PAGE>



                 SECTION 5.2 Collection of Indebtedness by
Trustee;  Trustee May Prove Debt. The Issuer  covenants that (a) in case default
shall be made in the payment of any part of the  Principal  Amount at  Maturity,
Issue Price,  including  accrued  Original Issue Discount or Redemption Price on
the  Notes as and when  the  same  shall  become  due and  payable,  whether  at
maturity,  upon redemption,  by declaration or otherwise -- then, upon demand of
the  Trustee,  the Issuer will pay to the Trustee for the benefit of the Holders
of the Notes the whole amount that then shall have become due and payable on all
the Notes (with  interest to the date of such payment upon the overdue  amounts,
at the same  rate as the  yield  to  maturity  on the  Notes);  and in  addition
thereto,  such  further  amount  as shall be  sufficient  to cover the costs and
expenses of collection,  including  reasonable  compensation to the Trustee, its
agents,  attorneys and counsel, and any expenses and liabilities  incurred,  and
all advances  made by the Trustee,  except as a result of its  negligence or bad
faith.

                 Until such demand is made by the Trustee, the
Issuer may make payments in respect of the Notes to the Holders,  whether or not
the Notes are overdue.

                 In case the Issuer shall fail forthwith to pay
such amounts upon such demand, the Trustee, in its own name and as trustee of an
express  trust,  shall be entitled  and  empowered  to  institute  any action or
proceedings  at law or in  equity  for  the  collection  of the  sums so due and
unpaid,  and may prosecute any such action or  proceedings  to judgment or final
decree,  and may enforce any such judgment or final decree against the Issuer or
the  Guarantor  upon the Notes and collect in the manner  provided by law out of
the property of the Issuer or the Guarantor  upon the Notes,  wherever  situated
the moneys adjudged or decreed to be payable.

                 In case there shall be pending proceedings
relative  to the Issuer or the  Guarantor  upon the Notes  under Title 11 of the
United  States  Code  or any  other  applicable  Federal  or  state  bankruptcy,
insolvency or other  similar law, or in case a receiver,  assignee or trustee in
bankruptcy or reorganization, liquidator, sequestrator or similar official shall
have been appointed for or taken



                                       40



<PAGE>



possession of the Issuer or its property or the Guarantor or its property, or in
case of any other comparable judicial  proceedings relative to the Issuer or the
Guarantor,  or to the creditors or property of the Issuer or the Guarantor,  the
Trustee,  irrespective of whether the Principal Amount at Maturity, Issue Price,
accrued  Original Issue Discount or Redemption  Price of the Notes 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  pursuant to the
provisions of this Section, shall be entitled and empowered,  by intervention in
such proceedings or otherwise:

                 (a) to file and prove a claim or claims for the
         amount  of the  Issue  Price  on the  Notes  then  Outstanding  and the
         Original Issue Discount  accrued thereon owing and unpaid in respect of
         such  Notes,  and to file  such  other  papers or  documents  as may be
         necessary  or  advisable  in order to have the  claims  of the  Trustee
         (including any claim for reasonable compensation to the Trustee and its
         agents,  attorneys and counsel,  and for  reimbursement of all expenses
         and liabilities incurred, and all advances made, by the Trustee, except
         as a result of negligence or bad faith) and of the Noteholders  allowed
         in any judicial  proceedings relative to the Issuer or the Guarantor or
         to the creditors or property of the Issuer or the Guarantor.

                 (b)       unless prohibited by applicable law and
         regulations,  to vote on  behalf  of the  Holders  of the  Notes in any
         election   of  a  trustee  or  a  standby   trustee   in   arrangement,
         reorganization,   liquidation   or  other   bankruptcy   or  insolvency
         proceedings  or  person  performing  similar  functions  in  comparable
         proceedings, and

                 (c)       to collect and receive any moneys or other
         property  payable or deliverable on any such claims,  and to distribute
         all amounts  received with respect to the claims of the Noteholders and
         of the Trustee on their behalf; and any trustee, receiver,  liquidator,
         custodian or other similar official is hereby authorized by each of the
         Noteholders to make payments to the Trustee, and, in the event that the
         Trustee



                                       41



<PAGE>



         shall consent to the making of payments directly to the Noteholders, to
         pay to the  Trustee  such  amounts  as  shall  be  sufficient  to cover
         reasonable  compensation to the Trustee, and its agents,  attorneys and
         counsel,  and all other  expenses  and  liabilities  incurred,  and all
         advances  made, by the Trustee  except as a result of negligence or bad
         faith.

                 Nothing herein contained shall be deemed to
authorize  the Trustee to authorize or consent to or vote for or accept or adopt
on behalf of any Holder any plan of reorganization,  arrangement,  adjustment or
composition  affecting  the Notes 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  except,  as  aforesaid,  to vote for the  election  of a trustee  in
bankruptcy or similar person.

                 All rights of action and of asserting claims under
this Indenture,  or under the Notes,  may be enforced by the Trustee without the
possession of any of the Notes or the  production  thereof on any trial or other
proceedings relative thereto,  and any such action or proceedings  instituted by
the Trustee shall be brought in its own name as trustee of an express trust, and
any recovery of judgment, subject to the payment of the expenses,  disbursements
and compensation of the Trustee and its agents,  attorneys and counsel, shall be
for the ratable benefit of the Holders of the Notes.

                 In any proceedings brought by the Trustee (and
also any  proceedings  involving  the  interpretation  of any  provision of this
Indenture  to which the Trustee  shall be a party) the Trustee  shall be held to
represent  all the Holders of the Notes,  and it shall not be  necessary to make
any Holders of the Notes parties to any such proceedings.

                 SECTION 5.3 Application of Proceeds.  Any moneys
collected by the Trustee  pursuant to this Article in respect of the Notes shall
be applied in the following order at the date or dates fixed by the Trustee and,
in case of the  distribution  of such moneys upon  presentation  of the Notes in
respect of which moneys have been  collected and stamping (or otherwise  noting)
thereon the payment, or issuing Notes



                                       42



<PAGE>



in reduced  Principal Amounts at Maturity in exchange for the presented Notes if
only partially paid, or upon surrender thereof if fully paid:

                 FIRST: To the payment of costs and expenses of
         collection applicable to such series, including reasonable compensation
         to the  Trustee  and  its  agents,  attorneys  and  counsel  and of all
         expenses  and  liabilities  incurred,  and all  advances  made,  by the
         Trustee except as a result of negligence or bad faith;

                 SECOND: To the payment of the whole amount then
         owing and unpaid upon the Notes for Principal Amount at Maturity, Issue
         Price,  accrued  Original  Issue  Discount or  Redemption  Price,  with
         interest  upon the  overdue  amounts  at the same  rate as the yield to
         maturity on the Notes; and in case such moneys shall be insufficient to
         pay in full the whole amount so due and unpaid upon the Notes,  then to
         the payment of such amount without  preference or priority,  ratably to
         the aggregate of such amount; and

                 THIRD: To the payment of the remainder, if any,
         to the Issuer or any other person lawfully entitled
         thereto.

                 SECTION 5.4 Suits for Enforcement.  In case an
Event of  Default  has  occurred,  has not been  waived and is  continuing,  the
Trustee may in its  discretion  proceed to protect and enforce the rights vested
in it by this Indenture by such appropriate  judicial proceedings as the Trustee
shall deem most  effectual to protect and enforce any of such rights,  either at
law or in  equity  or in  bankruptcy  or  otherwise,  whether  for the  specific
enforcement  of any covenant or agreement  contained in this Indenture or in aid
of the exercise of any power  granted in this  Indenture or to enforce any other
legal or equitable right vested in the Trustee by this Indenture or by law.

                 SECTION 5.5 Restoration of Rights on Abandonment
of  Proceedings.  In case the Trustee shall have  proceeded to enforce any right
under  this  Indenture  and such  proceedings  shall have been  discontinued  or
abandoned  for any  reason,  or shall  have  been  determined  adversely  to the
Trustee, then,



                                       43



<PAGE>



and in every such case,  the Issuer,  the  Guarantor  and the  Trustee  shall be
restored  respectively to their former positions and rights  hereunder,  and all
rights,  remedies and powers of the Issuer,  the Guarantor,  the Trustee and the
Noteholders shall continue as though no such proceedings had been taken.

                 SECTION 5.6  Limitations on Suits by Noteholders.
No Holder  of the Notes  shall  have any right by virtue or by  availing  of any
provision of this  Indenture to institute  any action or proceeding at law or in
equity or in  bankruptcy  or  otherwise  upon or under or with  respect  to this
Indenture, or for the appointment of a trustee, receiver, liquidator,  custodian
or other similar official or for any other remedy hereunder,  unless such Holder
previously  shall have given to the Trustee written notice of default and of the
continuance  thereof, as hereinbefore  provided,  and unless also the Holders of
not less than 25% in  aggregate  Principal  Amount at Maturity of the Notes then
Outstanding  (determined  as  provided  in Section  5.1 and voting as one class)
shall have made written  request  upon the Trustee to  institute  such action or
proceedings  in its own name as trustee  hereunder and shall have offered to the
Trustee such reasonable indemnity as it may require against the costs,  expenses
and  liabilities  to be incurred  therein or thereby and the Trustee for 60 days
after its  receipt of such  notice,  request and offer of  indemnity  shall have
failed to institute any such action or proceeding and no direction  inconsistent
with such  written  request  shall have been given to the  Trustee  pursuant  to
Section 5.9; it being understood and intended, and being expressly covenanted by
the taker and  Holder of every Note with  every  other  taker and Holder and the
Trustee,  that no one or more  Holders of the Notes  shall have any right in any
manner  whatever by virtue or by availing of any provision of this  Indenture to
affect,  disturb or prejudice the rights of any other Holder of the Notes, or to
obtain or seek to obtain priority over or preference to any other such Holder or
to enforce any right under this Indenture,  except in the manner herein provided
and for the equal,  ratable and common benefit of all Holders of the Notes.  For
the protection and enforcement of the provisions of this Section, each and every
Noteholder  and the  Trustee  shall be  entitled  to such relief as can be given
either at law or in equity.



                                       44



<PAGE>



                 SECTION 5.7  Unconditional Right of Noteholders to
Institute Certain Suits.  Notwithstanding  any other provision in this Indenture
and any provision of the Notes,  the right of any Holder of the Notes to receive
payments  in respect of such Notes on or after the due dates for such  payments,
or to institute  suit for the  enforcement  of any such payment on or after such
dates, shall not be impaired or affected without the consent of such Holder.

                 SECTION 5.8  Powers and Remedies Cumulative; Delay
or Omission  Not Waiver of Default.  Except as provided in the last  sentence of
Section 2.6 and subject to Section 5.6, no right or remedy herein conferred upon
or  reserved  to the  Trustee or to the  Holders of the Notes 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.

                 No delay or omission of the Trustee or of any
Holder of the Notes to exercise  any right or power  accruing  upon any Event of
Default  occurring and  continuing  as aforesaid  shall impair any such right or
power or shall be  construed  to be a waiver of any such  Event of Default or an
acquiescence  therein; and, subject to Section 5.6, every power and remedy given
by this Indenture or by law to the Trustee or to the Holders of the Notes may be
exercised from time to time, and as often as shall be deemed  expedient,  by the
Trustee or by the Holders of the Notes.

                 SECTION 5.9  Control by Holders of the Notes.  The
Holders  of a  majority  in  aggregate  Principal  Amount  at  Maturity  of  the
Outstanding Notes 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 upon the Trustee with respect to the Notes by this
Indenture;  provided  that  such  direction  shall  not  be  otherwise  than  in
accordance with law and the provisions of this Indenture and provided,  further,
that (subject to the provisions of Section 6.1) the



                                       45



<PAGE>



Trustee  shall have the right to decline  to follow  any such  direction  if the
Trustee, being advised by counsel, shall determine that the action or proceeding
so  directed  may not  lawfully  be taken or if the Trustee in good faith by its
board of directors, its executive committee or a trust committee of directors or
Responsible  Officers  of  the  Trustee  shall  determine  that  the  action  or
proceedings so directed would involve the Trustee in personal  liability or that
the actions or forbearances  specified in or pursuant to such direction would be
unduly  prejudicial  to the interests of Holders of the Notes not joining in the
giving of said direction,  it being understood that (subject to Section 6.1) the
Trustee  shall  have  no  duty to  ascertain  whether  or not  such  actions  or
forbearances are unduly prejudicial to such Holders.

                 Nothing in this Indenture shall impair the right
of the Trustee in its discretion to take any action deemed proper by the Trustee
and which is not inconsistent with such direction or directions by Noteholders.

                 SECTION 5.10 Waiver of Past Defaults.   Prior to
the  declaration  of  acceleration  of the  maturity of the Notes as provided in
Section 5.1, the Holders of a majority in aggregate Principal Amount at Maturity
of the Outstanding Notes may on behalf of all the Holders waive any past default
or Event of Default and its consequences with respect to the Notes, as described
in Section 5.1, except a default or an Event of Default in respect of a covenant
or provision  hereof or of the Notes which cannot be modified or amended without
the  consent  of the Holder of each Note.  In the case of any such  waiver,  the
Issuer,  the  Guarantor,  the  Trustee and the Holders of all the Notes shall be
restored to their former positions and rights  hereunder,  respectively;  but no
such waiver shall extend to any  subsequent or other default or impair any right
consequent thereon.

                 Upon any such waiver, such default shall cease to
exist and be deemed to have been cured and not to have  occurred,  and any Event
of Default arising therefrom shall be deemed to have been cured, and not to have
occurred for every purpose of this Indenture; but no such waiver shall



                                       46



<PAGE>



extend to any  subsequent  or other  default  or Event of  Default or impair any
right consequent thereon.

                 SECTION 5.11 Trustee to Give Notice of Default,
But May Withhold in Certain  Circumstances.  The Trustee  shall,  within 90 days
after the occurrence of a default with respect to the Notes,  give notice of all
such defaults known to the Trustee to all the Holders of the Notes in the manner
and to the extent provided in Section 4.4(c),  unless in each case such defaults
shall have been cured before the mailing of such notice (the term  "default" for
the purpose of this Article being hereby  defined to mean any event or condition
which is,  or with  notice or lapse of time or both  would  become,  an Event of
Default);  provided  that,  except in the case of default  described  in Section
5.1(a), 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 or trustees and/or  Responsible  Officers of the Trustee in good faith
determines  that the  withholding  of such  notice  is in the  interests  of the
Noteholders.

                 SECTION 5.12 Right of Court to Require Filing of
Undertaking to Pay Costs.  All parties to this Indenture  agree, and each Holder
of the Notes by his 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,  suffered  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 shall not apply to any suit instituted by the
Trustee,  to any suit  instituted  by any  Noteholder  or  group of  Noteholders
holding in the aggregate more than 10% in aggregate Principal Amount at Maturity
of the Notes, or to any suit instituted by any Noteholder for the enforcement of
the payment of the Principal Amount at Maturity,  Issue Price,  accrued Original
Issue  Discount or Redemption  Price of the Notes when the same shall become due
and payable.



                                       47



<PAGE>




                                   ARTICLE SIX

                             CONCERNING THE TRUSTEE

                 SECTION 6.1 Duties and Responsibilities of the
Trustee;  During Default; Prior to Default. The Trustee, prior to the occurrence
of an Event of Default with respect to the Notes and after the curing or waiving
of all  Events of Default  which may have  occurred  with  respect to the Notes,
undertakes to perform such duties and only such duties as are  specifically  set
forth in this  Indenture.  In case an Event of Default with respect to the Notes
has occurred  (which has not been cured or waived),  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 man would exercise or
use under the circumstances in the conduct of his own affairs.

                 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

                 (a)       prior to the occurrence of an Event of
         Default  with  respect  to the Notes and after the curing or waiving of
         all such Events of Default  which may have occurred with respect to the
         Notes:

                           (i) the  duties and  obligations  of
                 the Trustee with respect to the Notes shall be
                 determined solely by the express provisions of
                 this  Indenture,  and the Trustee shall not be
                 liable  except  for  the  performance  of such
                 duties and obligations as are specifically set
                 forth  in  this  Indenture,   and  no  implied
                 covenants  or  obligations  shall be read into
                 this Indenture against the Trustee; and

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



                                       48



<PAGE>



                 furnished to the Trustee and conforming to the
                 requirements  of  this  Indenture;  but in the
                 case of any such  statements,  certificates or
                 opinions  which by any  provision  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)       the Trustee shall not be liable for any error
         of judgment made in good faith by a Responsible  Officer or Responsible
         Officers of the Trustee, unless it shall be proved that the Trustee was
         negligent in ascertaining the pertinent facts; and

                 (c)       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 an  appropriate  direction of the Holders  pursuant to
         Section 5.9 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.

                 None of the provisions contained in this Indenture
shall  require  the 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 there shall be  reasonable  grounds
for  believing  that the repayment of such funds or adequate  indemnity  against
such liability is not reasonably assured to it.

                 SECTION 6.2 Certain Rights of the Trustee.
Subject to Section 6.1:

                 (a)       the Trustee may rely and shall be protected
         in acting or  refraining  from  acting upon any  resolution,  Officers'
         Certificate  or  other  certificate,  statement,  instrument,  opinion,
         report, notice, request, consent, order, bond, debenture, note, coupon,
         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;



                                       49



<PAGE>



                 (b)       any request, direction, order or demand of
         the Issuer or the  Guarantor  mentioned  herein  shall be  sufficiently
         evidenced by an Officers' Certificate (unless other evidence in respect
         thereof be herein specifically  prescribed);  and any resolution of the
         Board of  Directors  of  either  the  Issuer  or the  Guarantor  may be
         evidenced to the Trustee by a copy thereof  certified by the  secretary
         or  an  assistant  secretary  of  the  Issuer  or  the  Guarantor,   as
         applicable;

                 (c)       the Trustee may consult with counsel and any
         written  advice or any  Opinion of Counsel  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 of Counsel;

                 (d)       the Trustee shall be under no obligation to
         exercise any of the trusts or powers vested in it by this  Indenture at
         the request,  order or direction of any of the Holders  pursuant to the
         provisions of this Indenture, unless such Holders shall have offered to
         the  Trustee  reasonable  indemnity  against  the costs,  expenses  and
         liabilities which might be incurred therein or thereby;

                 (e)       the Trustee shall not be liable for any
         action  taken or omitted by it in good faith and  believed  by it to be
         authorized or within the discretion, rights or powers conferred upon it
         by this Indenture;

                 (f)       prior to the occurrence of an Event of
         Default  with  respect  to the Notes and after the curing or waiving of
         all such Events of Default,  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,
         consent,  order, approval,  appraisal,  bond, debenture,  note, coupon,
         security or other paper or document  unless  requested in writing so to
         do by the Holders of not less than a majority in  aggregate  Principal
         Amount at Maturity of the then Outstanding Notes;



                                       50



<PAGE>



         provided that, if the payment  within a reasonable  time to the Trustee
         of the costs,  expenses or  liabilities  likely to be incurred by it in
         the making of such investigation is, in the opinion of the Trustee, not
         reasonably assured to the Trustee by the security afforded to it by the
         terms of this Indenture,  the Trustee may require reasonable  indemnity
         against  such  costs,   expenses  or  liabilities  as  a  condition  to
         proceeding;  the reasonable  expenses of every such investigation shall
         be paid by the  Issuer or, if paid by the  Trustee,  shall be repaid by
         the Issuer upon demand; and

                 (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  not  regularly in its employ,  and the
         Trustee shall not be  responsible  for any  misconduct or negligence on
         the part of any such agent or  attorney  appointed  with due care by it
         hereunder.

                 SECTION 6.3  Trustee Not Responsible for Recitals,
Disposition  of the Notes or  Application  of  Proceeds  Thereof.  The  recitals
contained  herein  and  in the  Notes,  except  the  Trustee's  certificates  of
authentication,  shall be taken as the statements of the Issuer, and the Trustee
assumes no responsibility  for the correctness of the same. The Trustee makes no
representation  as to the validity or  sufficiency  of this  Indenture or of the
Notes.  The Trustee shall not be  accountable  for the use or application by the
Issuer of the Notes or of the proceeds thereof.

                 SECTION 6.4 Trustee and Agents May Hold Notes;
Collections, etc.  The Trustee or any agent of the Issuer or the Trustee, in its
individual or any other  capacity,  may become the owner or pledgee of the Notes
with the same rights it would have if it were not the Trustee or such agent and,
subject  to  Sections  6.8 and 6.13,  may  otherwise  deal with the  Issuer  and
receive,  collect,  hold and retain  collections  from the Issuer  with the same
rights it would have if it were not the Trustee or such agent.

                 SECTION 6.5 Moneys Held by Trustee.   Subject to
the provisions of Section 10.4, all moneys received by the



                                       51



<PAGE>



Trustee shall,  until used or applied as herein  provided,  be held in trust for
the purposes for which they were received, but need not be segregated from other
funds except to the extent required by mandatory  provisions of law. Neither the
Trustee nor any agent of the Issuer or the Trustee  shall be under any liability
for interest on any moneys received by it hereunder.

                 SECTION 6.6 Compensation and Indemnification of
Trustee  and Its Prior  Claim.  The  Issuer  covenants  and agrees to pay to the
Trustee  from time to time,  and the Trustee  shall be entitled  to,  reasonable
compensation  (which  shall not be limited by any  provision of law in regard to
the compensation of a trustee of an express trust), and the Issuer covenants and
agrees to pay or  reimburse  the Trustee  upon its  request  for all  reasonable
expenses,  disbursements  and advances incurred or made by or on behalf of it in
accordance  with  any  of  the  provisions  of  this  Indenture  (including  the
reasonable compensation and the expenses and disbursements of its counsel and of
all  agents and other  persons  not  regularly  in its  employ)  except any such
expense,  disbursement or advance as may arise from its negligence or bad faith.
The Issuer also  covenants to indemnify the Trustee for, and to hold it harmless
against, any loss, liability or expense incurred without negligence or bad faith
on  its  part  arising  out  of  or  in  connection   with  the   acceptance  or
administration  of  this  Indenture  or the  trusts  hereunder  and  its  duties
hereunder,  including  the costs and  expenses of  defending  itself  against or
investigating  any claim or liability in the premises.  The  obligations  of the
Issuer under this Section to compensate  and indemnify the Trustee and to pay or
reimburse the Trustee for expenses,  disbursements and advances shall constitute
additional  indebtedness  hereunder  and  shall  survive  the  satisfaction  and
discharge of this  Indenture.  Such  additional  indebtedness  shall be a senior
claim to that of the Notes upon all  property and funds held or collected by the
Trustee as such,  except  funds held in trust for the  benefit of the Holders of
the Notes,  and the Notes are hereby  subordinated  to such  senior  claim.  The
Company's  payment  obligations  pursuant to this Section 6.6 shall  survive the
discharge  of this  Indenture.  When  the  Trustee  incurs  expenses  after  the
occurrence  of an Event of  Default  specified  in  Section  5.1(e) or (f),  the
expenses are



                                       52



<PAGE>



intended to constitute expenses of administration under any Bankruptcy Law.

                 SECTION 6.7  Right of Trustee to Rely on Officers'
Certificate, etc.   Subject  to  Sections   6.1  and  6.2,   whenever  in  the
administration  of the  trusts  of this  Indenture  the  Trustee  shall  deem it
necessary or desirable that a matter be proved or established prior to taking or
suffering or omitting any action  hereunder,  such matter (unless other evidence
in respect  thereof is herein  specifically  prescribed)  may, in the absence of
negligence or bad faith on the part of the Trustee, be deemed to be conclusively
proved and established by an Officers' Certificate delivered to the Trustee, and
such  certificate,  in the absence of negligence or bad faith on the part of the
Trustee,  shall be full warrant to the Trustee for any action taken, suffered or
omitted by it under the provisions of this Indenture in reliance thereon.

                 SECTION 6.8  Qualification of Trustee; Conflicting
Interests.  (a) If the Trustee has or shall acquire any conflicting interest, as
defined in this Section, it shall, within 90 days after ascertaining that it has
such conflicting interest,  either eliminate such conflicting interest or resign
in the manner and with the effect specified in this Article.

                 (b)       In the event that the Trustee shall fail to
comply with the provisions of subsection (a) of this Section, the Trustee shall,
within 10 days after the  expiration  of such 90 day  period,  transmit  by mail
notice of such  failure  to the  Noteholders  in the  manner  and to the  extent
required by Section 4.4(c).

                 (c)       For the purposes of this Section, the Trustee
shall be deemed to have a conflicting interest with respect to the Notes if:

                           (i) the  Trustee is a trustee  under
                 another   indenture   under  which  any  other
                 securities,  or  certificates  of  interest or
                 participation in any other securities,  of the
                 Issuer  or  the  Guarantor  are   outstanding,
                 unless such other  indenture  is a  collateral
                 trust indenture under which the only



                                       53



<PAGE>



                 collateral  consists of the Notes issued under
                 this  Indenture;  provided that there shall be
                 excluded from the operation of this  paragraph
                 such other indenture or indentures under which
                 other securities,  or certificates of interest
                 or participation in other  securities,  of the
                 Issuer or the Guarantor are outstanding, if

                           (1) this  Indenture  and such  other
                 indenture or indentures  are wholly  unsecured
                 and such other  indenture  or  indentures  are
                 hereafter  qualified under the Trust Indenture
                 Act of 1939,  unless  the SEC shall have found
                 and  declared  by order  pursuant  to  Section
                 305(b)   or   Section   307(c)  of  the  Trust
                 Indenture Act of 1939 that  differences  exist
                 between the  provisions of this  Indenture and
                 the  provisions  of such  other  indenture  or
                 indentures, as applicable, which are so likely
                 to involve a material  conflict of interest as
                 to make it necessary in the public interest or
                 for the  protection of investors to disqualify
                 the  Trustee  from  acting as such  under this
                 Indenture   and  such   other   indenture   or
                 indentures, or

                             (2) the Issuer shall have  sustained
                 the burden of proving,  on  application to the
                 SEC and after opportunity for hearing thereon,
                 that trusteeship under this Indenture and such
                 other  indenture  or  indentures,  is  not  so
                 likely  to  involve  a  material  conflict  of
                 interest as to make it necessary in the public
                 interest or for the protection of investors to
                 disqualify  the  Trustee  from  acting as such
                 under this Indenture and such other  indenture
                 or indentures;

                 (ii) the Trustee or any of its directors or
         executive officers is an obligor upon the Notes issued
         under this Indenture or an underwriter for the Issuer
         or the Guarantor;

                 (iii)  the Trustee directly or indirectly controls
         or is directly or indirectly controlled by or is under
         direct or indirect common control with the Issuer or
         the Guarantor or an underwriter for the Issuer;



                                       54



<PAGE>



                 (iv) the Trustee or any of its directors or
         executive officers is a director, officer, partner, employee, appointee
         or representative  of the Issuer, or of an underwriter  (other than the
         Trustee  itself)  for the  Issuer  or the  Guarantor  who is  currently
         engaged in the business of underwriting, except that (x) one individual
         may be a director or an executive officer,  or both, of the Trustee and
         a  director  or an  executive  officer,  or both,  of the Issuer or the
         Guarantor, but may not be at the same time an executive officer of both
         the  Trustee  and  the  Issuer;  (y) if and so long  as the  number  of
         directors  of the Trustee in office is more than nine,  one  additional
         individual may be a director or an executive  officer,  or both, of the
         Trustee  and a  director  of the  Issuer;  and (z) the  Trustee  may be
         designated by the Issuer or by any underwriter for the Issuer to act in
         the capacity of transfer  agent,  registrar,  custodian,  paying agent,
         fiscal  agent,  escrow  agent or  depositary,  or in any other  similar
         capacity,  or, subject to the provisions of (c)(i) of this Section,  to
         act as trustee, whether under an indenture or otherwise;

                 (v) 10% or more of the voting securities of the
         Trustee is beneficially  owned either by the Issuer or by any director,
         partner or  executive  officer  thereof,  or 20% or more of such voting
         securities is beneficially owned,  collectively,  by any two or more of
         such persons; or 10% or more of the voting securities of the Trustee is
         beneficially  owned either by an  underwriter  for the Issuer or by any
         director,  partner or executive  officer  thereof,  or is  beneficially
         owned, collectively, by any two or more such persons;

                 (vi) the Trustee is the beneficial owner of, or
         holds as collateral security for an obligation which is in default, (x)
         5% or more of the voting securities,  or 10% or more of any other class
         of security of the Issuer,  not  including  the Notes issued under this
         Indenture and securities  issued under any other  indenture under which
         the  Trustee  is also  trustee,  or (y) 10% or  more  of any  class  of
         security of an underwriter for the Issuer;




                                       55



<PAGE>



                 (vii) the Trustee is the beneficial owner of, or
         holds as collateral  security for an obligation which is in default, 5%
         or more of the voting securities of any person who, to the knowledge of
         the Trustee,  owns 10% or more of the voting securities of, or controls
         directly or  indirectly or is under direct or indirect  common  control
         with, the Issuer;

                 (viii)  the Trustee is the beneficial owner of, or
         holds as collateral security for an obligation which is in default, 10%
         or more of any class of security of any person who, to the knowledge of
         the Trustee,  owns 50% or more of the voting  securities of the Issuer;
         or

                 (ix) the Trustee owns on May 1 in any calendar
         year, in the capacity of executor, administrator, testamentary or inter
         vivos  trustee,  guardian,  committee or  conservator,  or in any other
         similar capacity, an aggregate of 25% or more of the voting securities,
         or of any class of security, of any person, the beneficial ownership of
         a specified  percentage  of which would have  constituted a conflicting
         interest under clause (vi), (vii) or (viii) of this  subsection.  As to
         any such  securities of which the Trustee  acquired  ownership  through
         becoming executor,  administrator or testamentary  trustee of an estate
         which included them, the provisions of the preceding sentence shall not
         apply, for a period of two years from the date of such acquisition,  to
         the extent that such  securities  included in such estate do not exceed
         25% of such  voting  securities  or 25% of any such class of  security.
         Promptly  after May 1 in each calendar  year,  the Trustee shall make a
         check of its holdings of such securities in any of the  above-mentioned
         capacities  as of such May 1. If the  Issuer  fails to make  payment in
         full of  principal  of or  interest on any of the Notes when and as the
         same becomes due and payable,  and such failure  continues  for 30 days
         thereafter,  the Trustee  shall make a prompt  check of its holdings of
         such securities in any of the above-mentioned capacities as of the date
         of  the  expiration  of  such  30-day  period,  and  after  such  date,
         notwithstanding  the foregoing  provisions of this paragraph,  all such
         securities so held by the Trustee, with sole or joint control over such
         securities vested



                                       56



<PAGE>



         in it,  shall,  but only so long as such  failure  shall  continue,  be
         considered as though beneficially owned by the Trustee for the purposes
         of clauses (vi), (vii) and (viii) of this subsection.

                 The specification of percentages in clauses (v) to
(ix),  inclusive,  of this subsection  shall not be construed as indicating that
the  ownership of such  percentages  of the  securities of a person is or is not
necessary  or  sufficient  to  constitute  direct or  indirect  control  for the
purposes of clause (iii) or (vii) of this subsection.

                 For the purposes of clauses (vi), (vii), (viii)
and (ix) of this subsection only,

                 (i) the terms "security" and "securities" shall
         include  only  such  securities  as are  generally  known as  corporate
         securities,  but  shall  not  include  any  note or other  evidence  of
         indebtedness issued to evidence an obligation to repay moneys lent to a
         person by one or more banks,  trust  companies or banking firms, or any
         certificate of interest or  participation  in any such note or evidence
         of indebtedness;

                 (ii) an obligation shall be deemed to be "in
         default" when a default in payment of principal or interest  shall have
         continued for 30 days or more and shall not have been cured; and

                 (iii) the Trustee shall not be deemed to be the
         owner or  holder  of (x) any  security  which  it  holds as  collateral
         security,  as trustee or otherwise,  for an obligation  which is not in
         default as defined in clause (ii) above,  or (y) any security  which it
         holds as collateral security under this Indenture,  irrespective of any
         default  hereunder,  or (z) any  security  which it holds as agent  for
         collection,  or as  custodian,  escrow agent or  depositary,  or in any
         similar representative capacity.

                 Except as provided above, the word "security" or
"securities,"  as used in this  Section,  shall mean any note,  stock,  treasury
stock,  bond,  debenture,  evidence of indebtedness,  certificate of interest or
participation in



                                       57



<PAGE>



any  profit-sharing  agreement,  collateral trust  certificate,  preorganization
certificate or subscription,  transferable share,  investment  contract,  voting
trust certificate,  certificate of deposit for a security,  fractional undivided
interest in oil,  gas or other  mineral  rights or, in general,  any interest or
instrument  commonly  known as a "security,"  or any  certificate of interest or
participation in, temporary or interim  certificate for, receipt for,  guarantee
of, or warrant or right to subscribe to or purchase, any of the foregoing.

                 (d)       For purposes of this Section:

                 (i) the term "underwriter," when used with
         reference  to the Issuer,  shall mean every  person who,  within  three
         years  prior to the time as of which  the  determination  is made,  has
         purchased  from the Issuer  with a view to, or has  offered or sold for
         the Issuer in connection  with, the distribution of any security of the
         Issuer  outstanding  at such  time,  or has  participated  or has had a
         direct  or  indirect  participation  in any  such  undertaking,  or has
         participated  or has had a  participation  in the  direct  or  indirect
         underwriting of any such undertaking, but such term shall not include a
         person whose  interest was limited to a commission  from an underwriter
         or dealer  not in excess of the usual and  customary  distributors'  or
         sellers' commission;

                 (ii) the term "director" shall mean any director
         of a corporation or any individual performing similar
         functions with respect to any organization, whether
         incorporated or unincorporated;

                 (iii)  the term "person" shall mean an individual,
         a corporation, a partnership,  an association, a joint-stock company, a
         trust,  an  unincorporated  organization  or a government  or political
         subdivision  thereof;  as used in this clause,  the term "trust"  shall
         include only a trust where the interest or interests of the beneficiary
         or beneficiaries are evidenced by a security;




                                       58



<PAGE>



                 (iv) the term "voting security" shall mean any
         security presently entitling the owner or holder thereof to vote in the
         direction  or  management  of the affairs of a person,  or any security
         issued under or pursuant to any trust, agreement or arrangement whereby
         a trustee  or  trustees  or agent or agents  for the owner or holder of
         such  security  are  presently  entitled  to vote in the  direction  or
         management of the affairs of a person;

                 (v)  the term "Issuer" shall mean any obligor upon
         the Notes; and

                 (vi) the term "executive officer" shall mean the
         president,  every vice president, every trust officer, the cashier, the
         secretary  and the  treasurer  of a  corporation,  and  any  individual
         customarily   performing   similar   functions   with  respect  to  any
         organization,  whether  incorporated or  unincorporated,  but shall not
         include the chairman of the board of directors.

                 (e)       The percentages of voting securities and
other  securities  specified in this Section  shall be  calculated in accordance
with the following provisions:

                 (i) a specified percentage of the voting
         securities of the Trustee,  the Issuer or any other person  referred to
         in this  Section  (each of whom is  referred  to as a "person"  in this
         subsection)  means such amount of the outstanding  voting securities of
         such  person as  entitles  the holder or  holders  thereof to cast such
         specified  percentage of the  aggregate  votes which the holders of all
         the outstanding  voting  securities of such person are entitled to cast
         in the direction or management of the affairs of such person;

                 (ii) a specified percentage of a class of
         securities of a person means such percentage of the
         aggregate amount of securities of the class
         outstanding;

                 (iii) the term "amount," when used in regard to
         securities, means the principal amount if relating to
         evidences of indebtedness, the number of shares if



                                       59



<PAGE>



         relating to capital shares and the number of units if
         relating to any other kind of security;

                 (iv) the term "outstanding" means issued and not
         held by or for the  account of the  issuer;  the  following  securities
         shall not be deemed outstanding within the meaning of this definition:

                      (A)     securities of an issuer held in a
                 sinking fund relating to securities of the issuer
                 of the same class;

                      (B)     securities of an issuer held in
                 a sinking  fund  relating to another  class of
                 securities  of the issuer,  if the  obligation
                 evidenced by such other class of securities is
                 not in default as to  principal or interest or
                 otherwise;

                      (C)     securities pledged by the issuer thereof
                 security for an obligation of the issuer not in
                 default as to principal or interest or otherwise;
                 and

                      (D)     securities held in escrow if placed in
                 escrow by the issuer thereof;

         provided  that any  voting  securities  of an  issuer  shall be  deemed
         outstanding if any person other than the issuer is entitled to exercise
         the voting rights thereof; and

                 (v) a security shall be deemed to be of the same
         class as another security if both securities  confer upon the holder or
         holders thereof substantially the same rights and privileges;  provided
         that, in the case of secured  evidences of  indebtedness,  all of which
         are issued under a single indenture,  differences in the interest rates
         or  maturity  dates of  various  series  thereof  shall  not be  deemed
         sufficient to constitute  such series  different  classes and provided,
         further,  that,  in the case of unsecured  evidences  of  indebtedness,
         differences  in the interest  rates or maturity dates thereof shall not
         be deemed sufficient



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<PAGE>



         to constitute them securities of different classes, whether or not they
         are issued under a single indenture.

                 SECTION 6.9 Persons Eligible for Appointment as
Trustee.  There  shall at all  times be a  Trustee  hereunder  which  shall be a
corporation  organized and doing business under the laws of the United States of
America or of any State  thereof or the  District of Columbia  having a combined
capital and surplus of at least $50,000,000,  and which is authorized under such
laws to  exercise  corporate  trust  powers  and is subject  to  supervision  or
examination  by  Federal,  State or  District  of  Columbia  authority.  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,  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.  In case at any time the
Trustee  shall cease to be eligible in  accordance  with the  provisions of this
Section,  the Trustee shall resign immediately in the manner and with the effect
specified in Section 6.10.

                 SECTION 6.10  Resignation and Removal; Appointment
of  Successor  Trustee.  (a) The Trustee,  or any trustee or trustees  hereafter
appointed, may at any time resign by giving written notice of resignation to the
Issuer  and by mailing  notice of such  resignation  to the  Holders of the then
Outstanding Notes at their addresses as they shall appear on the register of the
Registrar. Upon receiving such notice of resignation,  the Issuer shall promptly
appoint a successor trustee or trustees with respect to the applicable series by
written  instrument,  in  duplicate,  executed  by  authority  of the  Board  of
Directors,  one copy of which  instrument  shall be delivered  to the  resigning
Trustee  and one copy to the  successor  trustee or  trustees.  If no  successor
trustee shall have been so appointed and shall have accepted  appointment within
30 days after the mailing of such notice of resignation,  the resigning  trustee
may  petition  any court of  competent  jurisdiction  for the  appointment  of a
successor  trustee,  or any Holder who has been a bona fide Holder of a Note for
at least six months may, subject to the provisions of Section 5.12, on behalf of



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such Holder and all others similarly  situated,  petition any such court for the
appointment of a successor trustee. Such court may thereupon, after such notice,
if any, as it may deem proper, appoint a successor trustee.

                 (b)       In case at any time any of the following
shall occur:

                 (i) the Trustee shall fail to comply with the
         provisions of Section 6.8 after written request  therefor by the Issuer
         or by any Holder who has been a bona fide Holder of a Note for at least
         six months; or

                 (ii) the Trustee shall cease to be eligible in
         accordance  with the provisions of Section 6.9 and shall fail to resign
         after written request therefor by the Issuer or by any such Holder; or

                 (iii) the Trustee shall become incapable of
         acting or shall be adjudged a bankrupt or  insolvent,  or a receiver or
         liquidator 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; or

                 (iv) the Issuer shall elect to remove the
         Trustee,  provided that no Event of Default,  or event which  following
         notice or the  passage  of time or both  would  constitute  an Event of
         Default,  shall then exist with  respect to the Notes and such  removal
         does not adversely affect the interests of any Holder of the Notes;

then,  in any such  case,  the  Issuer may  remove  the  Trustee  and  appoint a
successor trustee by written instrument, in duplicate,  executed by order of the
Board of  Directors,  one copy of which  instrument  shall be  delivered  to the
Trustee so  removed  and one copy to the  successor  trustee  or  trustees,  or,
subject to the  provisions of Section 5.12,  any Holder who has been a bona fide
Holder of a Note 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 and the



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appointment of a successor trustee. Such court may thereupon, after such notice,
if any,  as it may deem  proper,  remove the  Trustee  and  appoint a  successor
trustee.

                 (c)       Any resignation or removal of the Trustee and
any appointment of a successor trustee pursuant to any of the provisions of this
Section shall become  effective upon  acceptance of appointment by the successor
trustee as provided in Section 6.11.

                 SECTION 6.11 Acceptance of Appointment by
Successor  Trustee.  Any successor trustee appointed as provided in Section 6.10
shall  execute,  acknowledge  and  deliver to the Issuer and to its  predecessor
trustee an instrument  accepting such appointment  hereunder,  and thereupon the
resignation  or removal of the  predecessor  trustee shall become  effective and
such  successor  trustee,  without any further act,  deed or  conveyance,  shall
become  vested with all  rights,  powers,  trusts and duties of its  predecessor
hereunder,  with like effect as if originally named as trustee  hereunder;  but,
nevertheless,  on the written request of the Issuer or of the successor trustee,
upon  payment of its charges  then  unpaid,  the  trustee  ceasing to act shall,
subject to Section  10.4,  pay over to the  successor  trustee all moneys at the
time held by it hereunder  for the benefit of such  applicable  series and shall
execute,  acknowledge  and deliver an instrument  transferring to such successor
trustee all such  rights,  powers,  trusts and duties.  Upon request of any such
successor  trustee,  the  Issuer  shall  execute  and  acknowledge  any  and all
instruments in writing for more fully and certainly vesting in and confirming to
such successor trustee all such rights,  powers and trusts.  Any trustee ceasing
to act shall, nevertheless, retain a prior claim upon all property or funds held
or  collected by such trustee for the benefit of the Notes to secure any amounts
then due it pursuant to the provisions of Section 6.6.

                 No successor trustee shall accept appointment as
provided in this Section  unless at the time of such  acceptance  such successor
trustee  shall be  qualified  under the  provisions  of Section 6.8 and eligible
under the provisions of Section 6.9.




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<PAGE>



                 Upon acceptance of appointment by any successor
trustee as provided in this Section, the Issuer shall give notice thereof to the
Holders of the Notes by mailing such notice to such  Holders at their  addresses
as they shall  appear on the register of the  Registrar.  If the  acceptance  of
appointment is  substantially  contemporaneous  with the  resignation,  then the
notice  called for by the  preceding  sentence  may be combined  with the notice
called for by Section  6.10.  If the Issuer fails to give such notice  within 10
days after  acceptance of  appointment by the successor  trustee,  the successor
trustee shall cause such notice to be given at the expense of the Issuer.

                 SECTION 6.12  Merger, Conversion, Consolidation or
Succession to Business of Trustee. 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 the corporate trust business
of the Trustee,  shall be the successor of the Trustee hereunder,  provided that
such  corporation  shall be qualified  under the  provisions  of Section 6.8 and
eligible under the provisions of Section 6.9, without the execution or filing of
a paper or any further act on the part of any of the  parties  hereto,  anything
herein to the contrary notwithstanding.

         In case at the time of such  succession to the Trustee any of the Notes
shall have been authenticated but not delivered,  any such successor trustee may
adopt the certificate of authentication  of any predecessor  trustee and deliver
the Notes so authenticated; and, in case at that time any of the Notes shall not
have been  authenticated,  any  successor  trustee may  authenticate  such Notes
either in the name of any predecessor hereunder or in the name of such successor
trustee; and in all such cases such certificate of authentication shall have the
full force which it is anywhere in the Notes or in this Indenture  provided that
the certificate of authentication  of the Trustee shall have;  provided that the
right to adopt the  certification of any predecessor  trustee or to authenticate
the  Notes  in the  name of any  predecessor  trustee  shall  apply  only to its
successor or successors by merger, conversion or consolidation.




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<PAGE>



                 SECTION 6.13 Preferential Collection of Claims
Against  the Issuer.  (a)  Subject to the  provisions  of this  Section,  if the
Trustee shall be or shall become a creditor, directly or indirectly,  secured or
unsecured,  of the Issuer  within four months prior to a default,  as defined in
subsection (c) of this Section,  or subsequent to such a default,  then,  unless
and until such default shall be cured, the Trustee shall set apart and hold in a
special account for the benefit of the Trustee individually,  the Holders of the
Notes  and the  holders  of  other  indenture  securities  (as  defined  in such
subsection (c)):

                 (1)       an amount equal to any and all reductions in
         the amount due and owing upon any claim as such  creditor in respect of
         principal  or  interest,  effected  after  the  beginning  of such four
         months' period and valid as against the Issuer and its other creditors,
         except any such reduction  resulting from the receipt or disposition of
         any property  described in clause (2) of this  subsection,  or from the
         exercise of any right of set-off which the Trustee could have exercised
         if a petition  in  bankruptcy  had been filed by or against  the Issuer
         upon the date of such default; and

                 (2)       all property received by the Trustee in
         respect of any claim as such creditor,  either as security therefor, or
         in  satisfaction  or  composition  thereof,  or  otherwise,  after  the
         beginning  of such  four  months'  period,  or an  amount  equal to the
         proceeds of any such property if disposed of, subject,  however, to the
         rights,  if any, of the Issuer and its other creditors in such property
         or such proceeds.

                 Nothing herein contained, however, shall affect
the right of the Trustee:

                 (A)       to retain for its own account (i) payments
         made on account of any such claim by any person (other than the Issuer)
         who is liable  thereon,  (ii) the proceeds of the bona fide sale of any
         such claim by the Trustee to a third  person,  and (iii)  distributions
         made in cash,  securities or other  property in respect of claims filed
         against the Issuer in bankruptcy or  receivership or in proceedings for
         reorganization



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<PAGE>



         pursuant to Title 11 of the United States Code or
         applicable state law;

                 (B)       to realize, for its own account, upon any
         property  held by it as security for any such claim,  if such  property
         was so held prior to the beginning of such four months' period;

                 (C)       to realize, for its own account, but only to
         the extent of the claim hereinafter  mentioned,  upon any property held
         by it as security for any such claim,  if such claim was created  after
         the  beginning  of such  four  months'  period  and such  property  was
         received as security therefor simultaneously with the creation thereof,
         and if the Trustee shall sustain the burden of proving that at the time
         such  property was so received the Trustee had no  reasonable  cause to
         believe  that a default as defined in  subsection  (c) of this  Section
         would occur within four months; or

                 (D)       to receive payment on any claim referred to
         in clause (B) or (C) of this  subsection,  against  the  release of any
         property held as security for such claim as provided in such clause (B)
         or (C),  as the case may be, to the  extent  of the fair  value of such
         property,

                 For the purposes of clauses (B), (C) and (D),
property substituted after the beginning of such four months period for property
held as  security  at the time of such  substitution  shall to the extent of the
fair  value of the  property  released,  have the same  status  as the  property
released,  and, to the extent that any claim  referred to in any of such clauses
is created in renewal of or in  substitution  for or for the purpose of repaying
or refunding any pre-existing claim of the Trustee as such creditor,  such claim
shall have the same status as such preexisting claim.

                 If the Trustee shall be required to account, the
fund and property held in such special account and the proceeds thereof shall be
apportioned  among the Trustee,  the Holders and the holders of other  indenture
securities in such manner that the Trustee, the Holders and the holders of other
indenture  securities realize, as a result of payments from such special account
and payments of dividends on



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<PAGE>



claims filed against the Issuer in bankruptcy or  receivership or in proceedings
for reorganization  pursuant to Title 11 of the United States Code or applicable
State law,  the same  percentage  of their  respective  claims,  figured  before
crediting  to the claim of the Trustee  anything on account of the receipt by it
from the Issuer of the funds and  property  in such  special  account and before
crediting to the respective  claims of the Trustee,  the Holders and the holders
of other  indenture  securities  dividends on claims filed against the Issuer in
bankruptcy or  receivership  or in proceedings  for  reorganization  pursuant to
Title 11 of the United States Code or applicable  State law, but after crediting
thereon receipts on account of the indebtedness  represented by their respective
claims from all sources  other than from such  dividends  and from the funds and
property so held in such special account. As used in this paragraph with respect
to any claim, the term "dividends"  shall include any distribution  with respect
to  such  claim,   in  bankruptcy  or   receivership   or  in  proceedings   for
reorganization  pursuant  to Title 11 of the United  States  Code or  applicable
State  law,  whether  such  distribution  is made in cash,  securities  or other
property,  but shall not  include  any such  distribution  with  respect  to the
secured  portion,  if any,  of such claim.  The court in which such  bankruptcy,
receivership or proceeding for reorganization is pending shall have jurisdiction
(i) to  apportion  among the  Trustee,  the  Holders  and the  holders  of other
indenture securities,  in accordance with the provisions of this paragraph,  the
funds and property  held in such special  account and the proceeds  thereof,  or
(ii)  in lieu  of  such  apportionment,  in  whole  or in  part,  to give to the
provisions of this paragraph due  consideration  in determining  the fairness of
the  distributions  to be made to the  Trustee,  the  Holders and the holders of
other indenture  securities with respect to their  respective  claims,  in which
event it shall not be  necessary  to  liquidate  or to appraise the value of any
securities or other property held in such special account or as security for any
such claim, or to make a specific  allocation of such  distributions  as between
the secured and  unsecured  portions of such  claims,  or otherwise to apply the
provisions of this paragraph as a mathematical formula.




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<PAGE>



                 Any Trustee who has resigned or been removed after
the beginning of such four-months'  period shall be subject to the provisions of
this subsection as though such  resignation or removal had not occurred.  If any
Trustee has resigned or been removed prior to the beginning of such four-months'
period,  it shall be subject to the provisions of this subsection if and only if
the following conditions exist:

                 (i)       the receipt of property or reduction of claim
         which  would have  given rise to the  obligation  to  account,  if such
         Trustee had continued as trustee,  occurred after the beginning of such
         four-months' period; and

                 (ii)      such receipt of property or reduction of
         claim occurred within four months after such
         resignation or removal.

                 (b) There shall be excluded from the operation of
this Section a creditor relationship arising from:

                 (1)       ownership or acquisition of securities issued
         under any indenture or any security or securities
         having a maturity of one year or more at the time of
         acquisition by the Trustee;

                 (2)       advances authorized by a receivership or
         bankruptcy court of competent jurisdiction or by this Indenture for the
         purpose of preserving  any property  which shall at any time be subject
         to the lien of this  Indenture  or of  discharging  tax  liens or other
         prior liens or encumbrances  thereon,  if notice of such advance and of
         the  circumstances  surrounding  the  making  thereof  is  given to the
         Noteholders at the time and in the manner provided in this Indenture;

                 (3)       disbursements made in the ordinary course of
         business in the capacity of trustee under an indenture, transfer agent,
         registrar,  custodian,  paying agent,  fiscal agent or  depositary,  or
         other similar capacity;

                 (4)       an indebtedness created as a result of
         services rendered or premises rented or an indebtedness



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<PAGE>



         created as a result of goods or securities sold in a
         cash transaction as defined in subsection (c)(3) of
         this Section;

                 (5)       the ownership of stock or of other securities
         of a corporation organized under the provisions of Section 25(a) of the
         Federal  Reserve  Act, as amended,  which is directly or  indirectly  a
         creditor of the Issuer; or

                 (6)       the acquisition, ownership, acceptance or
         negotiation   of  any  drafts,   bills  of  exchange,   acceptances  or
         obligations which fall within the  classification  of  self-liquidating
         paper as defined in subsection (c)(4) of this Section.

                 (c)       As used in this Section:

                 (1)       the term "default" shall mean any failure to
         make  payment in full of the  principal  or  interest in respect of the
         Notes  when such  payment  becomes  due and  payable or  principal  and
         interest upon the other indenture securities when and as such principal
         or interest becomes due and payable;

                 (2)       the term "other indenture securities" shall
         mean  securities upon which the Issuer is an obligor (as defined in the
         Trust Indenture Act of 1939)  outstanding under any other indenture (i)
         under which the Trustee is also trustee, (ii) which contains provisions
         substantially  similar  to the  provisions  of  subsection  (a) of this
         Section  and  (iii)  under  which a  default  exists at the time of the
         apportionment of the funds and property held in said special account;

                 (3)       the term "cash transaction" shall mean any
         transaction in which full payment for goods or securities  sold is made
         within seven days after delivery of the goods or securities in currency
         or in checks or other  orders  drawn upon banks or bankers  and payable
         upon demand;

                 (4)       the term "self-liquidating paper" shall mean
         any draft, bill of exchange, acceptance or obligation



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<PAGE>



         which is made,  drawn,  negotiated  or  incurred  by the Issuer for the
         purpose of financing the purchase, processing,  manufacture,  shipment,
         storage or sale of goods,  wares or merchandise and which is secured by
         documents  evidencing  title to,  possession  of, or a lien  upon,  the
         goods, wares or merchandise or the receivables or proceeds arising from
         the sale of the goods, wares or merchandise previously constituting the
         security,   provided   the   security   is   received  by  the  Trustee
         simultaneously with the creation of the creditor  relationship with the
         Issuer  arising from the making,  drawing,  negotiating or incurring of
         the draft, bill of exchange, acceptance or obligation; and

                 (5)    the term "Issuer" shall mean any obligor upon
         the Notes.

                 SECTION  6.14  Appointment  of  Authenticating Agent.
As long as any Note remains  Outstanding,  the Trustee may, by an  instrument in
writing,  appoint with the approval of the Issuer an  authenticating  agent (the
"Authenticating  Agent")  which  shall be  authorized  to act on behalf  of, but
subject to the direction of, the Trustee to  authenticate  Notes including Notes
issued upon exchange,  registration of transfer,  partial redemption or pursuant
to Section 2.6. Notes 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.   Whenever   reference  is  made  in  the   Indenture  to  the
authentication  and  delivery  of  Notes  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
for such series and a certificate  of  authentication  executed on behalf of the
Trustee by such  Authenticating  Agent. Such  Authenticating  Agent shall at all
times be a corporation organized and doing business under the laws of the United
States of  America  or of any  State  thereof  or of the  District  of  Columbia
authorized under such laws to exercise corporate trust powers, having a combined
capital and surplus of at least  $5,000,000  (determined  as provided in Section
6.9 with respect to the Trustee) and subject to  supervision  or  examination by
Federal or State authority.




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<PAGE>



                 Any corporation into which any 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 any
Authenticating  Agent  shall  be a part  or any  corporation  succeeding  to the
corporate agency or corporate trust business of any Authenticating  Agent, shall
be the successor to such Authenticating  Agent with respect to the Notes without
the  execution  or  filing of any  paper or any  further  act on the part of the
Trustee or such Authenticating Agent.

                 Any Authenticating Agent may at any time, and if
it shall cease to be eligible  hereunder shall,  resign by giving written notice
of  resignation  to the Trustee  and to the Issuer.  The Trustee may at any time
terminate  the  agency  of any  Authenticating  Agent by giving  written  notice
thereof to such  Authenticating  Agent and the  Issuer.  Upon  receiving  such a
notice of  resignation  or upon such a  termination,  or in case at any time any
Authenticating  Agent  shall  cease  to  be  eligible  in  accordance  with  the
provisions  of this  Section,  the Trustee shall upon receipt of an Issuer Order
appoint  a  successor  Authenticating  Agent and  shall  provide  notice of such
appointment  to all the  Holders  of the Notes in the  manner  and to the extent
provided in Section 6.11 with respect to the appointment of a successor trustee.
Any successor  Authenticating Agent upon acceptance of its appointment hereunder
shall  become  vested  with all  rights,  powers and  duties of its  predecessor
hereunder, with like effect as if originally named as an Authenticating Agent.

                 Sections 6.2, 6.3, 6.4, 6.6 (except for the last
sentence thereof) and 7.3 shall be applicable to any Authenticating Agent.


                                  ARTICLE SEVEN

                           CONCERNING THE NOTEHOLDERS

                 SECTION 7.1 Evidence of Action Taken by Noteholders.   Any 
request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Indenture to be given or taken by a specified percentage
in aggregate Principal Amount at Maturity of the Holders of the



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<PAGE>



Notes may be evidenced by one or more instruments of substantially similar tenor
signed by such  specified  percentage  of Holders in person or by agent or proxy
duly appointed in writing;  and, except as herein otherwise  expressly provided,
such action shall become  effective  when such  instrument  or  instruments  are
delivered to the Trustee.

                 SECTION 7.2 Proof of Execution of Instruments  and of Holding 
of Notes.   Subject to Sections 6.1 and 6.2,  proof of the execution of any  
instrument by a Holder or his agent or proxy shall be sufficient if made in
accordance with such reasonable  rules and regulations as may be prescribed by 
the Trustee or in such manner as shall be satisfactory to the Trustee. Subject
to Sections 6.1 and 6.2, proof of the  holding  by any  Person  of any Note  
shall be  sufficient  if the ownership of the Notes is proved by the  register  
maintained  by the  Registrar pursuant to Section 2.3 or by a certificate of the
Registrar.

                 SECTION 7.3  Holders to be Treated as Owners.  The
Issuer, the Guarantor, the Trustee and any agent of the Issuer, the Guarantor or
the  Trustee  may deem and treat  the  Person  in whose  name any Note  shall be
registered upon the register maintained by the Registrar pursuant to Section 2.3
as the  absolute  owner of such Note  (whether or not such Note shall be overdue
and  notwithstanding any notation of ownership or other writing thereon) for the
purpose  of  receiving  payments  of or on account of the Note and for all other
purposes;  and none of the Issuer,  the Guarantor,  the Trustee and any agent of
the Issuer,  the Guarantor or the Trustee shall be affected by any notice to the
contrary. All such payments so made to any such Person, or upon his order, shall
be valid,  and, to the extent of the sum or sums so paid,  effectual  to satisfy
and discharge the liability for moneys payable upon any such Note.

                 SECTION 7.4 Notes Owned by Issuer Deemed Not
Outstanding.  In  determining  whether  the Holders of the  requisite  aggregate
Principal  Amount  at  Maturity  of  Outstanding  Notes  have  concurred  in any
direction,  consent or waiver under this Indenture, Notes which are owned by the
Issuer,  the Guarantor or by any Person  directly or indirectly  controlling  or
controlled by or under direct or indirect  common control with the Issuer or the
Guarantor



                                       72



<PAGE>



shall be disregarded  and deemed not to be  Outstanding  for the purposes of any
such  determination,  except  that for the  purpose of  determining  whether the
Trustee  shall be protected  relying on any such  direction,  consent or waiver,
only Notes which the Trustee knows are so owned shall be so  disregarded.  Notes
so owned which 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 Notes and that the  pledgee is not the Issuer or
the Guarantor upon such Notes or any Person  directly or indirectly  controlling
or controlled by or under direct or indirect  common  control with the Issuer or
the  Guarantor.  In case of a dispute  as to such  right,  the advice of counsel
shall be full  protection  in respect  of any  decision  made by the  Trustee in
accordance  with such  advice.  Upon  request of the  Trustee,  the Issuer shall
furnish to the Trustee promptly an Officers' Certificate listing and identifying
all Notes, if any, known by the Issuer to be owned or held by or for the account
of any of the above described Persons; and, subject to Sections 6.1 and 6.2, 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 Notes not
listed therein are Outstanding for the purposes of any such determination.

                 SECTION  7.5  Right of  Revocation  of  Action Taken.
At any time prior to (but not after) the evidencing to the Trustee,  as provided
in Section  7.1,  of the taking of any  action by the  Holders of the  requisite
percentage in aggregate  Principal  Amount at Maturity of the Notes specified in
this Indenture in connection  with such action,  any Holder of a Note the serial
number of which is shown by the evidence to be included among the serial numbers
of the Notes the Holders of which have  consented  to such action may, by filing
written  notice at the  Corporate  Trust  Office and upon proof of  ownership as
provided in Section 7.2, revoke such action so far as concerns such Note. Except
as aforesaid,  any such action taken by the Holder of a Note shall be conclusive
and binding upon such Holder and upon all future Holders and owners of such Note
and of any Notes issued in exchange or substitution  therefor or on registration
of  transfer  thereof,  irrespective  of whether or not any  notation  in regard
thereto is made upon any such



                                       73
<PAGE>

Note.  Any action taken by the Holders of the requisite  percentage in aggregate
Principal  Amount  at  Maturity  of the Notes  specified  in this  Indenture  in
connection with such action shall be conclusively  binding upon the Issuer,  the
Guarantor, the Trustee and the Holders of all the Notes.

                 The Issuer may, but shall not be obligated to, fix
a record date for the purpose of determining  the  Noteholders  entitled to give
their  consent or take any other  action  described  above.  If a record date is
fixed, then  notwithstanding  the immediately  preceding paragraph those Persons
who were  Holders  of Notes  at such  record  date  (or  their  duly  designated
proxies),  and only those Persons,  shall be entitled to give such consent or to
revoke any consent  previously  given or to take any such action with respect to
such Notes, whether or not such Persons continue to be Holders after such record
date.  No such consent  shall be valid or effective for more than 120 days after
such record date.


                                  ARTICLE EIGHT

                             SUPPLEMENTAL INDENTURES

                 SECTION 8.1 Supplemental Indentures Without
Consent of  Noteholders.  The Issuer and the  Guarantor,  when  authorized  by a
resolution of their respective Boards of Directors (which resolution may provide
general  terms or  parameters  for such action and may provide that the specific
terms of such  action may be  determined  in  accordance  with or pursuant to an
Issuer  Order),  and the Trustee may,  from time to time and at any time,  enter
into an  indenture  or  indentures  supplemental  hereto  for one or more of the
following purposes:

                 (a)       subject to Section 3.6, to convey, transfer,
         assign, mortgage or pledge to the Trustee as security
         for the Notes any property or assets;

                 (b)       to add guarantees with respect to the Notes;

                 (c)       to evidence the succession of another
         corporation to the Issuer or the Guarantor, or



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         successive successions, and the assumption by the successor corporation
         of the  covenants,  agreements  and  obligations  of the  Issuer or the
         Guarantor, as applicable pursuant to Article Nine;

                 (d)       to add to the covenants of the Issuer or the
         Guarantor   such  further   covenants,   restrictions,   conditions  or
         provisions as the Issuer,  the Guarantor and the Trustee shall consider
         to be for the  protection of the Holders of the Notes,  and to make the
         occurrence,  or  the  occurrence  and  continuance,  of  a  default  in
         complying with any such additional covenant, restriction,  condition or
         provision an Event of Default  permitting the enforcement of all or any
         of the several remedies provided in this Indenture as herein set forth;
         in respect of any such additional covenant,  restriction,  condition or
         provision,  such  supplemental  indenture  may provide for a particular
         period of grace after  default  (which  period may be shorter or longer
         than that allowed in the case of other  defaults) or may provide for an
         immediate  enforcement  upon such an Event of  Default or may limit the
         remedies  available to the Trustee upon such an Event of Default or may
         limit the right of the  Holders of a majority  in  aggregate  Principal
         Amount at Maturity of the Notes to waive such an Event of Default;

                 (e)       to cure any ambiguity, defect, omission or
         inconsistency  or to  correct or  supplement  any  provision  contained
         herein  or in any  supplemental  indenture  which may be  defective  or
         inconsistent  with  any  other  provision  contained  herein  or in any
         supplemental  indenture, or to make such other provisions as the Issuer
         or the Guarantor may deem necessary or desirable, provided that no such
         action  shall  adversely  affect the  interests  of the  Holders of the
         Notes;

                 (f)       to evidence and provide for the acceptance of
         appointment hereunder by a successor trustee, as
         provided in Section 6.11; and

                 (g)       to provide for uncertificated Notes in
         addition to or in place of certificated Notes;
         provided, however, that the uncertificated Notes are



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         issued  in  registered  form for  purposes  of  Section  163(f)  of the
         Internal Revenue Code of 1986, as amended, or in a manner such that the
         uncertificated  Notes are  described  in  Section  163(f)(2)(B)  of the
         Internal Revenue Code of 1986, as amended.

                 The Trustee is hereby authorized to join with the
Issuer and the Guarantor in the execution of any such supplemental indenture, to
make any further  appropriate  agreements and stipulations  which may be therein
contained and to accept the conveyance, transfer, assignment, mortgage or pledge
of any property or assets thereunder,  but the Trustee shall not be obligated to
enter into any such  supplemental  indenture  which  affects the  Trustee's  own
rights, duties or immunities under this Indenture or otherwise.

                 Any supplemental indenture authorized by the
provisions of this Section may be executed without the consent of the Holders of
the Notes at the time  Outstanding,  notwithstanding  any of the  provisions  of
Section 8.2.

                 SECTION 8.2 Supplemental Indentures With Consent
of the Noteholders. With the consent (evidenced as provided in Article Seven) of
the  Holders  of not less  than a  majority  in  aggregate  Principal  Amount at
Maturity of the Outstanding Notes affected by such supplemental  indenture,  the
Issuer and the Guarantor,  when  authorized by a resolution of their  respective
Boards of Directors  (which  resolution may provide  general terms or parameters
for such action and may provide  that the  specific  terms of such action may be
determined in accordance  with or pursuant to an Issuer Order),  and the Trustee
may,  from time to time and at any time,  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 any
supplemental  indenture  or of  modifying in manner the rights of the Holders of
the Notes;  provided  that no such  supplemental  indenture  shall,  without the
consent of each  Holder  affected  thereby  (a) reduce the  Principal  Amount at
Maturity,  the Issue Price or the Redemption Price with respect to any Note, the
amount  thereof  that  would  be due and  payable  upon an  acceleration  of the
maturity of the Notes pursuant to Section 5.1, or the



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amount  thereof  provable in  bankruptcy  pursuant to Section 5.2, or extend the
maturity of any Note,  or alter the manner or rate of accrual of Original  Issue
Discount, or make any Note payable in money or securities other than that stated
in the Note;  (b) reduce the  percentage in Principal  Amount at Maturity of the
Outstanding Notes whose Holders must consent to any such supplemental  indenture
or any  waiver  provided  for in this  Indenture;  or (c)  impair  the  right to
institute suit for the enforcement of any payment with respect to the Notes.

                 Upon the request of the Issuer and the Guarantor,
accompanied  by a Board  Resolution  from each of the Issuer  and the  Guarantor
complying  with the first  paragraph of this Section and evidence of the consent
of the Holders of the Notes as aforesaid  and such other  documents,  if any, as
may be required by Section 7.1,  the Trustee  shall join with the Issuer and the
Guarantor  in  the  execution  of  such   supplemental   indenture  unless  such
supplemental  indenture  affects the Trustee's own rights,  duties or immunities
under  this  Indenture  or  otherwise,  in  which  case the  Trustee  may in its
discretion,  but  shall  not be  obligated  to,  enter  into  such  supplemental
indenture.

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

                 Promptly after the execution by the Issuer, the
Guarantor  and  the  Trustee  of  any  supplemental  indenture  pursuant  to the
provisions  of this Section,  the Trustee  shall give notice  thereof (i) to the
Holders of then  Outstanding  Notes,  by mailing a notice thereof by first-class
mail to such Holders at their  addresses as they shall appear on the register of
the  Registrar.  Any failure of the Trustee to give such  notice,  or any defect
therein,  shall not,  however,  in any way impair or affect the  validity of any
such supplemental indenture.

                 SECTION 8.3 Effect of Supplemental Indenture.
Upon the execution of any supplemental indenture pursuant to the provisions
hereof, this Indenture shall be and be deemed



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to be modified and amended in accordance  therewith and the  respective  rights,
limitations of rights,  obligations,  duties and immunities under this Indenture
of the Trustee,  the Issuer,  the Guarantor and the Holders of the Notes of each
series affected thereby shall  thereafter be determined,  exercised and enforced
hereunder subject in all respects to such modifications and amendments,  and all
the terms and  conditions  of any such  supplemental  indenture  shall be and be
deemed to be part of the terms and  conditions of this Indenture for any and all
purposes.

                 SECTION 8.4 Documents to Be Given to Trustee.
The Trustee,  subject to the  provisions of Sections 6.1 and 6.2, may receive an
Officers' Certificate and an Opinion of Counsel as conclusive evidence that any
supplemental  indenture  executed  pursuant to this  Article  complies  with the
applicable provision of this Indenture.

                 SECTION 8.5 Notation on Notes in Respect of
Supplemental  Indentures.  Notes of any series authenticated and delivered after
the execution of any supplemental  indenture  pursuant to the provisions of this
Article  may bear a  notation  form  approved  by the  Trustee  as to any matter
provided for by such supplemental indenture. If a supplemental indenture changes
the terms of a Note,  the Trustee may require the Holder of such Note to deliver
it to the Trustee, and the Trustee may place an appropriate notation on the Note
regarding the changed terms and return it to such Holder.  A failure to make any
such notation  shall not,  however,  in any way impair or affect the validity of
any such supplemental indenture or any such Note the terms of which are changed.


                                  ARTICLE NINE

                    CONSOLIDATION, MERGER, SALE OR CONVEYANCE

                 SECTION 9.1 Covenant of the Guarantor and the
Issuer Not to Merge,  Consolidate,  Sell or Convey Property Except Under Certain
Conditions.  Neither the  Guarantor  nor the Issuer shall  consolidate  with, or
merge with or into, any other Person or Persons  (whether or not affiliated with
the Guarantor or the Issuer), or be a party to successive



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<PAGE>



consolidations  or mergers to which the Guarantor or the Issuer, as the case may
be, or its successor or successors  shall be a party or parties,  or sell, lease
or  convey  the  property  of the  Guarantor  or the  Issuer as an  entirety  or
substantially as an entirety,  unless (and in the case of the Issuer, subject to
the provisions of Section 3.8): (a) upon any such consolidation,  merger,  sale,
lease or  conveyance,  the due and punctual  payment of the Principal  Amount at
Maturity,  Issue Price,  accrued Original Issue Discount and Redemption Price on
all the Notes, and the due and punctual performance and observance of all of the
covenants,  conditions and other  obligations of this Indenture and the Notes to
be  performed or observed by the  Guarantor  or the Issuer,  as the case may be,
shall be expressly assumed,  by supplemental  indenture  satisfactory in form to
the Trustee,  executed and delivered to the Trustee by the Person formed by such
consolidation,  or into which the  Guarantor or the Issuer,  as the case may be,
shall  have been  merged,  or which  shall  have  acquired  such  property  (the
"Successor  Company");  (b) the  Successor  Company shall be either (i) a Person
organized and existing under the laws of the United States, any state thereof or
the District of Columbia or (ii) a Person  organized and existing under the laws
of Canada, Japan, Australia, New Zealand, any nation in Western Europe or of any
political  subdivision  of any thereof and such Person  undertakes to pay to the
Holders of the Notes any  additional  amounts as may be  necessary in order that
every net payment of Principal Amount at Maturity, Issue Price, accrued Original
Issue Discount and Redemption  Price on the Notes,  after  withholding for or on
account of any present or future tax,  assessment or governmental charge imposed
upon such Holder  (except for a tax,  assessment or charge  imposed  solely as a
result of a connection between the recipient and the jurisdiction  imposing such
tax assessment or charge) by reason of or as a result of such payment being made
by a Person which is not a Person  existing  under the laws of the United States
or any state  thereof or the  District  of  Columbia,  will not be less than the
amount  provided  for in the Notes to be then due and payable;  (c)  immediately
after giving effect to such  transaction  (and treating any Secured Debt or Sale
and Leaseback  Transaction  which becomes an obligation of the Successor Company
as a result of such  transaction  as having been incurred or entered into by the
Successor Company at the time of such transaction), no Event



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<PAGE>



of Default,  and no event which,  after  notice or lapse of time or both,  would
become an Event of Default,  shall have happened and be  continuing;  and (d) in
the case of any such  transaction  with  respect to the  Issuer,  the  Guarantor
consents to such transaction and reaffirms the Guarantee.

                 SECTION 9.2 Notes to be Secured in Certain
Events. If, upon any such consolidation or merger of the Guarantor or the Issuer
or upon any such sale,  lease or  conveyance of the property of the Guarantor or
the Issuer as an entirety or  substantially  as an entirety to any other Person,
any property owned by the Guarantor  immediately  prior thereto would  thereupon
become  subject to any Lien  (unless  the  Secured  Debt in respect of such Lien
could have been  incurred by the  Guarantor  without  its being  required by the
provisions of Section 3.6 to secure the Notes equally and ratably with (or prior
to) such Secured Debt), the Guarantor, prior to any such consolidation,  merger,
sale,  lease or  conveyance,  will by indenture  supplemental  hereto secure the
Notes  (together  with,  if the  Guarantor  shall so  determine,  any other Debt
incurred,  assumed or guaranteed by the Guarantor ranking equally with, or prior
to, the Guarantee,  whether then existing or thereafter  created) by direct Lien
on such  property,  prior  to all  Liens  other  than any  theretofore  existing
thereon.

                 SECTION 9.3 Successor Company Substituted.   In
case of any  consolidation,  merger,  sale,  lease or conveyance  referred to in
Section 9.1, and following  such an assumption  by the Successor  Company,  such
Successor  Company shall succeed to and be substituted  for the Guarantor or the
Issuer, as the case may be, with the same effect as if it had been named herein.

                 Such Successor Company may cause to be signed, and
may issue either in its own name or in the name of the  Guarantor or the Issuer,
as the case may be, prior to such  succession,  any or all of the Notes issuable
hereunder which  theretofore  shall not have been signed by the Guarantor or the
Issuer, as the case may be, and delivered to the Trustee; and, upon the order of
such Successor Company,  instead of the Guarantor or the Issuer, as the case may
be, and subject to all the terms,  conditions and  limitations in this Indenture
prescribed, the Trustee shall authenticate



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<PAGE>



and shall  deliver  any Notes  which  previously  shall  have  been  signed  and
delivered by the officers of the Guarantor or the Issuer, as the case may be, to
the  Trustee for  authentication,  and any Notes  which such  Successor  Company
thereafter  shall  cause to be signed  and  delivered  to the  Trustee  for that
purpose.  All of the Notes so issued shall in all  respects  have the same legal
rank and benefit  under this  Indenture as the Notes  theretofore  or thereafter
issued in  accordance  with the terms of this  Indenture  as though  all of such
Notes had been issued at the date of the execution hereof.

                 In case of any such consolidation, merger, sale,
lease or conveyance  such changes in phraseology and form (but not in substance)
may be made in the Notes thereafter to be issued as may be appropriate.

                 In the event of any such sale or conveyance (other
than a conveyance by way of lease), the Guarantor or the Issuer or any Successor
Company which shall theretofore have become such in the manner described in this
Article  shall be  discharged  from all  obligations  and  covenants  under this
Indenture and the Notes and may be liquidated and dissolved.

                 SECTION 9.4 Officers' Certificate and Opinion of
Counsel Delivered to Trustee. The Trustee, subject to the provisions of Sections
6.1 and 6.2, may receive an Officers' Certificate and an Opinion of Counsel each
stating that any such consolidation, merger, sale, lease or conveyance, that any
such  assumption,  that  any  such  supplemental  indenture  and  that  any such
liquidation  or  dissolution,  complies with the  applicable  provisions of this
Indenture.


                                   ARTICLE TEN

                          SATISFACTION AND DISCHARGE OF
                           INDENTURE; UNCLAIMED MONEYS

                 SECTION 10.1 Satisfaction and Discharge of
Indenture.  (A)  If at any time (a) the Issuer shall have
paid or caused to be paid the Principal Amount at Maturity
due and payable in respect of all the Notes theretofore
authenticated (other than Notes which have been destroyed,



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<PAGE>



lost or stolen and which have been replaced or paid as
provided in Section 2.6), in accordance with the terms of
this Indenture and such Notes or (b) as to Notes not so
paid, the Issuer shall have delivered to the Trustee for
cancellation all the Notes theretofore authenticated (other
than any Notes which shall have been destroyed, lost or
stolen and which shall have been replaced or paid as
provided in Section 2.6) or (c) as to Notes not so paid or
delivered for cancellation, (i) all the Notes shall have
become due and payable, and (ii) the Issuer shall have
irrevocably deposited or caused to be deposited with the
Trustee as trust funds the entire amount in cash (other than
moneys repaid by the Trustee or any paying agent to the
Issuer in accordance with Section 10.4) to pay the Principal
Amount at Maturity on all the Notes; and if, in the case of
(a), (b) or (c), the Issuer shall also pay or cause to be
paid all other sums payable hereunder by the Issuer, then
this Indenture shall, subject to Section 10.6, cease to be
of further effect (except as to (i) rights of registration
of transfer and exchange of the Notes and the Issuer's right
of optional redemption, (ii) substitution of mutilated,
defaced, destroyed, lost or stolen Notes, (iii) the rights
of Holders of the Notes to receive payments thereon upon the
original stated due dates therefor (but not upon
acceleration), (iv) the rights, obligations, duties and
immunities of the Trustee hereunder, (v) the rights of
Holders of the Notes as beneficiaries hereof with respect to
the property so deposited with the Trustee and payable to
all or any of them, (vi) the obligations of the Issuer under
Sections 3.2, 3.3, 3.4, 4.1 and 9.3 and clauses (a) and (b)
of Section 9.1 and (vii) this Article 10 pertinent to such
continuing obligations); and the Trustee, on demand of the
Issuer accompanied by 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, and
at the cost and expense of the Issuer, shall execute proper
instruments acknowledging such satisfaction and discharge of
this Indenture; provided that the rights of Holders of the
Notes to receive amounts in respect of the Principal Amount
at Maturity or redemption, as the case may be, on the Notes
held by them shall not be delayed longer than required by
then applicable mandatory rules or policies of any national
securities exchange upon which the Notes are listed.  The



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<PAGE>



Issuer  agrees to  reimburse  the Trustee  for any costs or expenses  thereafter
reasonably and properly  incurred and to compensate the Trustee for any services
thereafter  reasonably and properly  rendered by the Trustee in connection  with
this Indenture or the Notes.

                 (B) In addition to discharge of this Indenture
pursuant to the next preceding paragraph (A), the Issuer shall be deemed to have
paid and  discharged the entire  indebtedness  on all the Notes on the 123rd day
after the date of the deposit  referred to in  subparagraph  (a) below,  and the
provisions of this Indenture with respect to the Notes shall, subject to Section
10.6,  no longer be in  effect  (except  as to (i)  rights  of  registration  of
transfer  and  exchange  of  the  Notes  and  the  Issuer's  right  of  optional
redemption,  (ii) substitution of mutilated,  defaced, destroyed, lost or stolen
Notes, (iii) the rights of Holders of the Notes to receive payments thereon upon
the original stated due dates therefor (but not upon acceleration),  solely from
the  trust  fund  referred  to in  subparagraph  (a)  below,  (iv)  the  rights,
obligations,  duties and immunities of the Trustee hereunder,  (v) the rights of
Holders of the Notes as  beneficiaries  hereof with  respect to the  property so
deposited  with  the  Trustee  and  payable  to all or any  of  them,  (vi)  the
respective  obligations  of the Issuer under Sections 3.2, 3.3, 3.4, 4.1 and 9.3
and clauses (a) and (b) of Section 9.1 and (vii) this  Article 10  pertinent  to
such continuing  obligations);  and the Trustee,  at the cost and expense of the
Issuer, shall, at the Issuer's request, execute proper instruments acknowledging
the same, if:

                 (a)       the Issuer shall have irrevocably deposited
         or caused to be irrevocably  deposited with the Trustee as a trust fund
         specifically  pledged as security  for,  and  dedicated  solely to, the
         benefit  of the  Holders  of the Notes (i) cash in an  amount,  or (ii)
         Government  Obligations,  maturing as to principal and interest at such
         times and in such amounts as will insure the  availability  of cash, or
         (iii) a combination thereof,  sufficient in the opinion of a nationally
         recognized  firm  of  independent  public  accountants  expressed  in a
         written  certification  thereof  delivered to the  Trustee,  to pay the
         Principal  Amount at  Maturity  on all the Notes on each date that such
         amount is due and payable;



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<PAGE>



                 (b)       no Event of Default or event which, with
         notice or lapse of time or both,  would become an Event of Default with
         respect to the Notes shall have  occurred and be continuing on the date
         of such  deposit or,  insofar as clauses (e) and (f) of Section 5.1 are
         concerned,  at any time during the period ending on the 123rd day after
         the date of such deposit (it being understood that this condition shall
         not be deemed satisfied until the expiration of such period);

                 (c)       such deposit, defeasance and discharge shall
         not result in a breach or violation of, or constitute a default  under,
         this Indenture or any other agreement or instrument to which either the
         Issuer or the Guarantor is a party or by which either is bound;

                 (d)       the Issuer shall have delivered to the
         Trustee an Opinion of Counsel (which counsel, for the purpose of clause
         (ii), shall be counsel selected by the Issuer with national recognition
         in  matters of  federal  income  tax law) to the  effect  that (i) such
         deposit shall not result in the Issuer,  the Guarantor,  the Trustee or
         such trust  constituting  an "investment  company" under the Investment
         Company Act of 1940,  as amended,  and (ii) either (A) there has been a
         change in the  applicable  Federal income tax law or (B) the Issuer has
         received  from, or there has been  published  by, the Internal  Revenue
         Service a ruling to the effect that,  and in any such case  referred to
         in clause (A) or (B) such Opinion of Counsel  shall  confirm that based
         thereon,  the Holders of the Notes then  Outstanding will not recognize
         income,  gain or loss for  Federal  income tax  purposes as a result of
         such deposit,  defeasance  and discharge and will be subject to Federal
         income  tax on the same  amounts,  in the same  manner  and at the same
         times as would  have  been the  case if such  deposit,  defeasance  and
         discharge had not occurred; and

                 (e)       the Issuer shall have delivered to the
         Trustee  an  Officers'  Certificate  and an Opinion  of  Counsel,  each
         stating that all conditions  precedent  herein provided for relating to
         the defeasance contemplated by this paragraph have been complied with.




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<PAGE>



                 (C)       The Issuer and the Guarantor shall be
released from their respective obligations under Sections 3.5, 3.6, 3.7, 3.8 and
3.9 and Article  Nine (other than  clauses  (a), (b) and (d) of Section 9.1 with
respect to the Notes on and after the date the  conditions  set forth  below are
satisfied (hereinafter,  "covenant defeasance"). Covenant defeasance means that,
with respect to the Outstanding  Notes, the Issuer and the Guarantor may omit to
comply with and shall have no  liability  in respect of any term,  condition  or
limitation  set forth in Sections  3.5,  3.6,  3.7, 3.8 and 3.9 and Article Nine
(other than Section  9.1(a),  (b) and (d)),  whether  directly or  indirectly by
reason of any  reference  elsewhere  herein to any such  Section or Article,  by
reason of any reference in such Section or Article to any other provision herein
or by  reason of any  reference  to any such  Section  or  Article  in any other
document,  and such omission to comply shall not  constitute an Event of Default
under Section 5.1 with respect to the  Outstanding  Notes,  but the remainder of
this  Indenture  shall  be  unaffected  thereby.  The  following  shall  be  the
conditions to application of this paragraph (C):

                 (a)       the Issuer shall have irrevocably deposited
         or caused to be irrevocably  deposited with the Trustee as a trust fund
         specifically  pledged as security  for,  and  dedicated  solely to, the
         benefit of the  Holders of the  Notes,  (i) cash in an amount,  or (ii)
         Government  Obligations,  maturing as to principal and interest at such
         times and in such amounts as will insure the  availability  of cash, or
         (iii) a combination thereof,  sufficient in the opinion of a nationally
         recognized  firm  of  independent  public  accountants  expressed  in a
         written  certification  thereof  delivered to the  Trustee,  to pay the
         Principal  Amount at  Maturity  on all the Notes on each date that such
         amount is due and payable;

                 (b)       no Event of Default or event which, with
         notice or lapse of time or both,  would become an Event of Default with
         respect to the Notes shall have  occurred and be continuing on the date
         of such  deposit or,  insofar as clauses (e) and (f) of Section 5.1 are
         concerned,  at any time during the period ending on the 123rd day after
         the date of such deposit (it being



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<PAGE>



         understood that this condition shall not be deemed
         satisfied until the expiration of such period);

                 (c)       such deposit and covenant defeasance shall
         not result in a breach or violation of, or constitute a default  under,
         this Indenture or any other agreement or instrument to which either the
         Issuer or the Guarantor is a party or by which either is bound;

                 (d)       the Issuer shall have delivered to the
         Trustee an Opinion of Counsel (which counsel, for the purpose of clause
         (ii), shall be counsel selected by the Issuer with national recognition
         in  matters of  federal  income  tax law) to the  effect  that (i) such
         deposit shall not result in the Issuer,  the Guarantor,  the Trustee or
         such trust  constituting  an "investment  company" under the Investment
         Company Act of 1940, as amended, and (ii) the Holders of the Notes then
         Outstanding will not recognize income,  gain or loss for Federal income
         tax purposes as a result of such deposit and  covenant  defeasance  and
         will be subject to Federal income tax on the same amounts,  in the same
         manner  and at the  same  times  as  would  have  been the case if such
         deposit and covenant defeasance had not occurred; and

                 (e)       the Issuer shall have delivered to the
         Trustee  an  Officers'  Certificate  and an Opinion  of  Counsel,  each
         stating that all conditions  precedent  herein provided for relating to
         such covenant defeasance have been complied with.

                 SECTION 10.2 Application by Trustee of Funds
Deposited for Payment of Notes.  Subject to Section 10.4,  all moneys  deposited
with the Trustee  pursuant to Section 10.1 in respect of the  Outstanding  Notes
shall be held in trust and  applied by it to the  payment,  either  directly  or
through any Paying Agent  (including the Issuer acting as its own Paying Agent),
to the  Holders of the Notes of all sums due and to become due  thereon  for the
Principal  Amount at Maturity,  but such money need not be segregated from other
funds except to the extent required by law.

                 SECTION 10.3 Repayment of Moneys Held by Paying
Agent. In connection with the satisfaction and discharge of



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<PAGE>



this  Indenture  with  respect to the Notes,  all moneys then held by any Paying
Agent under the provisions of the Indenture shall, upon demand of the Issuer, be
paid to the Trustee and  thereupon  such Paying Agent shall be released from all
further liability with respect to such moneys.

                 SECTION 10.4  Return of Moneys Held by Trustee and
Paying Agent Unclaimed for Two Years.  Any moneys  deposited with or paid to the
Trustee  or any Paying  Agent for the  payment of any amount on any Note and not
applied  but  remaining  unclaimed  for two years after the date upon which such
amount shall have become due and payable, shall, upon the written request of the
Issuer and unless  otherwise  required by  mandatory  provisions  of  applicable
escheat or abandoned or unclaimed  property  law, be repaid to the Issuer by the
Trustee  or such  Paying  Agent,  and the  Holder  of the  Notes  shall,  unless
otherwise required by mandatory provisions of applicable escheat or abandoned or
unclaimed  property  laws,  thereafter  look only to the Issuer for any  payment
which such Holder may be entitled to collect,  and all  liability of the Trustee
or any Paying Agent with respect to such moneys shall thereupon cease; provided,
however,  that the Trustee or such Paying Agent,  before being  required to make
any such  repayment  with respect to moneys  deposited  with it for any payment,
shall at the expense of the Issuer,  mail by first-class mail to Holders of such
Notes at their  addresses as they shall appear on the register of the Registrar,
notice that such moneys remain and that, after a date specified  therein,  which
shall  not be less  than 30 days from the date of such  mailing,  any  unclaimed
balance of such moneys then remaining will be repaid to the Issuer.

                 SECTION 10.5  Indemnity for Government
Obligations. The Issuer shall pay and indemnify the Trustee against any tax, fee
or other  charge  imposed on or  assessed  against  the  Government  Obligations
deposited  pursuant to Section  10.1 or the  principal  or interest  received in
respect of such  Government  Obligations,  other than any such tax, fee or other
charge  which by law is for the  account  of the  Holders of the Notes for whose
benefit such Government Obligations are held.




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                 SECTION 10.6 Reinstatement.  If the Trustee or
Paying Agent is unable to apply any money or Government Obligation in accordance
with this Article 10 by reason of any legal proceeding or by reason of any order
or judgment of any court or  governmental  authority  enjoining,  restraining or
otherwise  prohibiting  such  application,  the  Issuer's  and  the  Guarantor's
obligations  under this  Indenture and the Notes shall be revived and reinstated
as though no deposit had occurred pursuant to this Article 10 until such time as
the Trustee or Paying Agent is  permitted to apply all such money or  Government
Obligations in accordance with this Article 10; provided,  however, that, if the
Issuer or the  Guarantor  has made any  payment of  principal  in respect of any
Notes  because  of the  reinstatement  of its  obligations,  the  Issuer  or the
Guarantor,  as applicable,  shall be entitled,  at its election,  (a) to receive
from the Trustee or Paying Agent,  as applicable,  that portion of such money or
Government  Obligations  equal  to  the  amount  of  such  payment  or (b) to be
subrogated  to the rights of the Holders of such Notes to receive  such  payment
from the money or Government Obligations held by the Trustee or Paying Agent.


                                 ARTICLE ELEVEN

                            MISCELLANEOUS PROVISIONS

                 SECTION 11.1 Incorporators, Stockholders,
Officers and Directors of Issuer and Guarantor Exempt from Individual Liability.
No recourse  under or upon any  obligation,  covenant or agreement  contained in
this  Indenture,  or in the  Notes,  or because  of any  indebtedness  evidenced
thereby,  shall be had against any  incorporator,  as such, or against any past,
present or future  stockholder,  officer or director,  as such, of the Issuer or
the Guarantor or of any successor,  either directly or through the Issuer or the
Guarantor or any  successor,  under any rule of law,  statute or  constitutional
provision or by the  enforcement  of any assessment or by any legal or equitable
proceeding or otherwise,  all such liability being expressly waived and released
by the  acceptance  of the  Notes  by the  Holders  thereof  and as  part of the
consideration for the issue of the Notes.



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                 SECTION 11.2  Provisions of Indenture for the Sole
Benefit of Parties and  Holders of Notes.  Nothing in this  Indenture  or in the
Notes,  expressed or implied,  shall give or be construed to give to any person,
firm or corporation,  other than the parties hereto and their successors and the
Holders of the Notes, any legal or equitable  right,  remedy or claim under this
Indenture  or  under  any  covenant  or  provision  herein  contained,  all such
covenants and  provisions  being for the sole benefit of the parties  hereto and
their successors and of the Holders of the Notes.

                 SECTION 11.3 Successors and Assigns of Issuer or
Guarantor  Bound by Indenture.  All the  covenants,  stipulations,  promises and
agreements  in this  Indenture  contained  by or on behalf of the  Issuer or the
Guarantor, as the case may be, shall bind any successors and assigns, whether so
expressed or not.

                 SECTION 11.4 Notices and Demands on Issuer, the
Guarantor,  Trustee  and  Holders of Notes.  Any  notice or demand  which by any
provision  of this  Indenture  is required or permitted to be given or served by
the Trustee or by any Holder of Notes to or upon the Issuer or the Guarantor may
be given or served in person or by being deposited postage prepaid in the United
States  mail,  first-class  mail  (except  as  otherwise  specifically  provided
herein),  addressed  (until  another  address of the Issuer or the  Guarantor is
filed by the Issuer or the  Guarantor  with the  Trustee) to  American  Portable
Telecom,  Inc.,  8410 West Bryn  Mawr  Avenue,  Suite  1100,  Chicago,  Illinois
60631-3486,  Attention:  Chief  Financial  Officer,  and to  Telephone  and Data
Systems,  Inc.,  Suite 4000, 30 North LaSalle Street,  Chicago,  Illinois 60602,
Attention:  Treasurer. Any notice, direction, request or demand by the Issuer or
the  Guarantor  or any  Holder of Notes to or upon the  Trustee  may be given or
served in person or by being  deposited  postage  prepaid in the  United  States
mail,  first-class  mail (except as  otherwise  specifically  provided  herein),
addressed (until another address of the Trustee is filed by the Trustee with the
Issuer) to The First National Bank of Chicago,  One First National Plaza,  Suite
0126, Chicago, IL 60670, Attention:  Corporate Trust Office. Any notice required
or  permitted  to be given or  served by the  Issuer,  the  Guarantor  or by the
Trustee to or upon any Holders of Notes, may be given or



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served by being deposited in the United States mail, first-class mail (except as
otherwise  specifically  provided herein),  addressed at their addresses as they
shall appear on the register of the Registrar.

                 In any case where notice to the Noteholders 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.

                 In case, by reason of the suspension of or
irregularities in regular mail service, it shall be impracticable to mail notice
to the Issuer when such notice is required to be given pursuant to any provision
of this Indenture,  then any manner of giving such notice as shall be reasonably
satisfactory  to the Trustee  shall be deemed to be a sufficient  giving of such
notice.

                 SECTION 11.5 Officers' Certificates and Opinions
of Counsel;  Statements to be Contained Therein.  Upon any application or demand
by the Issuer or the  Guarantor  to the Trustee to take any action  under any of
the provisions of this Indenture,  the Issuer or the Guarantor,  as the case may
be,  shall  furnish to the Trustee an  Officers'  Certificate  stating  that all
conditions  precedent  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 have been complied with,
except  that in the case of any  such  application  or  demand  as to which  the
furnishing of such documents is  specifically  required by any provision of this
Indenture  relating to such  particular  application  or demand,  no  additional
certificate or opinion need be furnished.

                 Each certificate or opinion provided for in this
Indenture and delivered to the Trustee with respect to



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compliance  with a condition or covenant  provided for in this  Indenture  shall
include (a) a statement  that the person making such  certificate or opinion has
read such  covenant or  condition,  (b) a brief  statement  as to the nature and
scope of the examination or investigation  upon which the statements or opinions
contained in such certificate or opinion are based, (c) a statement that, in the
opinion of such person,  he has made such  examination  or  investigation  as is
necessary to enable him 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
or not, in the  opinion of such  person,  such  condition  or covenant  has been
complied with.

                 Any certificate, statement or opinion of an
officer of the Issuer or the  Guarantor  may be based,  insofar as it relates to
legal matters,  upon a certificate or opinion of or  representations by counsel,
unless such officer knows that the certificate or opinion of or  representations
with respect to the matters upon which his certificate, statement or opinion may
be based as  aforesaid  are  erroneous,  or in the exercise of  reasonable  care
should know that the same are erroneous.  Any certificate,  statement or opinion
of counsel may be based,  insofar as it relates to factual matters,  information
with respect to which is in the  possession of the Issuer or the  Guarantor,  as
the  case  may  be,   upon  the   certificate,   statement   or  opinion  of  or
representations by an officer or officers of the Issuer or the Guarantor, unless
such counsel knows that the certificate, statement or opinion or representations
with respect to the matters upon which his certificate, statement or opinion may
be based as  aforesaid  are  erroneous,  or in the exercise of  reasonable  care
should know that the same are erroneous.

                Any certificate, statement or opinion of an
officer of the Issuer or the Guarantor or of counsel may be based, insofar as it
relates  to  accounting   matters,   upon  a   certificate   or  opinion  of  or
representations  by an  accountant or firm of  accountants  in the employ of the
Issuer or the Guarantor,  as the case may be, unless such officer or counsel, as
the case may be, knows that the certificate or opinion or  representations  with
respect to the accounting matters upon which his certificate, statement



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or opinion  may be based as  aforesaid  are  erroneous,  or in the  exercise  of
reasonable care should know that the same are erroneous.

                Any certificate or opinion of any independent firm
of public  accountants  filed with and directed to the Trustee  shall  contain a
statement that such firm is independent.

                SECTION 11.6 Payments Due on Saturdays, Sundays
and  Holidays.  If the date of  maturity of  principal  of the Notes or the date
fixed for redemption or repayment of the Notes shall not be a Business Day, then
payment  of amounts  due on the Notes need not be made on such date,  but may be
made on the next  succeeding  Business  Day with the same force and effect as if
made on the date of maturity or the date fixed for  redemption  or repayment and
no interest shall accrue for the period after such date.

                SECTION 11.7 Illinois Law to Govern.  This
Indenture  and the Notes shall be deemed to be a contract  under the laws of the
State of Illinois,  and for all purposes  shall be construed in accordance  with
the laws of such  State,  except  as may  otherwise  be  required  by  mandatory
provisions of law.

                SECTION 11.8  Counterparts.  This Indenture may be
executed in any number of counterparts,  each of which shall be an original; but
such counterparts shall together constitute but one and the same instrument.

                SECTION 11.9  Effect of Headings.  The Article and
Section  headings herein and the Table of Contents are for convenience only and
shall not affect the construction hereof.


                                 ARTICLE TWELVE

                               REDEMPTION OF NOTES

                SECTION  12.1  Right  to  Redeem;  Notices  to Trustee.
The  Issuer,  at its  option,  may  redeem  the  Notes  in  accordance  with the
provisions  of  paragraphs 5 and 6 of the Notes.  If the Issuer elects to redeem
Notes pursuant to



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paragraph  5 of the  Notes,  it shall  notify  the  Trustee  in  writing  of the
redemption  date,  the Principal  Amount at Maturity of Notes to be redeemed and
the Redemption  Price.  The Issuer shall give the notice to the Trustee provided
for in this Section 12.1 at least 70 days before the  redemption  date (unless a
shorter notice shall be satisfactory to the Trustee).

                SECTION 12.2 Notice of Redemption; Partial
Redemptions. (a) Notice of redemption to the Holders of the Notes to be redeemed
as a whole or in part shall be given by  mailing  notice of such  redemption  by
first class mail,  postage  prepaid,  at least 30 days and not more than 60 days
prior to the date fixed for redemption,  to such Holders at their last addresses
as they shall  appear upon the  register of the  Registrar.  Any notice which is
mailed in the manner herein provided shall be conclusively presumed to have been
duly  given,  whether or not the Holder  receives  the  notice.  Failure to give
notice by mail, or any defect in the notice to the Holder of any Note designated
for  redemption  as a whole or in part,  shall not  affect the  validity  of the
proceedings for the redemption of any other Note.

                (b)       The notice of redemption to each such Holder
shall specify the Principal  Amount at Maturity of each Note held by such Holder
to be redeemed,  the date fixed for redemption,  the Redemption Price, the place
or  places of  payment  and that  payment  will be made  upon  presentation  and
surrender of such Note,  that on and after said date Original Issue Discount and
interest,  if any,  will cease to accrue  (unless the Issuer  defaults in making
such  redemption  payment or the Paying  Agent is  prohibited  from  making such
payment pursuant to the terms of this Indenture) and that no  representation  is
made as to the  correctness or accuracy of the CUSIP number,  if any,  listed in
such notice or printed on the Notes.  In case any Note is to be redeemed in part
only the notice of redemption shall state the portion of the Principal Amount at
Maturity thereof to be redeemed and shall state that on and after the date fixed
for  redemption,  upon surrender of such Note, a new Note or Notes in authorized
denominations  for an  aggregate  Principal  Amount  at  Maturity  equal  to the
unredeemed portion thereof will be



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issued in the name of the Holder thereof upon cancellation
of the original Note.

                (c)       The notice of redemption of Notes to be
redeemed  at the  option of the  Issuer  shall be given by the Issuer or, at the
Issuer's  request,  by the Trustee in the name and at the expense of the Issuer,
in which case the Issuer will provide the Trustee with the information  required
to be included in such notice by the preceding paragraph.

                (d)       On or before the redemption date specified in
the notice of  redemption  given as  provided in this  Section,  the Issuer will
deposit with the Trustee or with one or more Paying Agents (or, if the Issuer is
acting  as its own  paying  agent,  set  aside,  segregate  and hold in trust as
provided  in  Section  3.4) an  amount  of money  sufficient  to  redeem  on the
redemption  date all the  Notes  so  called  for  redemption  at the  applicable
Redemption Price. In the case of any partial redemption,  selection of the Notes
for redemption  will be made by the Trustee on a pro rata basis,  by lot or by a
method  that  complies  with  the  applicable  legal  and  securities   exchange
requirements, if any, and that the Trustee considers fair and appropriate and in
accordance  with  the  methods  generally  used  at the  time  of  selection  by
fiduciaries in similar circumstances. Notes may be redeemed in part in multiples
equal to $1,000 Principal Amount at Maturity or any integral  multiple  thereof.
The Trustee shall  promptly  notify the Issuer in writing of the Notes  selected
for redemption. For all purposes of this Indenture, unless the context otherwise
requires,  all provisions  relating to the redemption of Notes shall relate,  in
the case of any Note  redeemed or to be redeemed only in part, to the portion of
the  Principal  Amount  at  Maturity  of such  Note  which  has been or is to be
redeemed.

                SECTION 12.3 Payment of Notes Called for
Redemption.  If notice of redemption has been given as provided in Section 12.2,
the Notes or portions of the Notes specified in such notice shall become due and
payable  on the date and at the place  stated in such  notice at the  applicable
Redemption Price, and on and after said date (unless the Issuer shall default in
the payment of such Notes at the applicable Redemption Price) the Original Issue



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Discount and  interest,  if any, on the Notes or portions of Notes so called for
redemption  shall cease to accrue,  and,  except as provided in Sections 6.5 and
10.4,  such Notes shall cease from and after the date fixed for redemption to be
entitled  to any  benefit or  security  under this  Indenture,  and the  Holders
thereof shall have no right in respect of such Notes except the right to receive
the applicable  Redemption Price thereof.  On presentation and surrender of such
Notes  at a place  of  payment  specified  in said  notice,  such  Notes  or the
specified  portions  thereof  shall be paid and  redeemed  by the  Issuer at the
applicable Redemption Price.

                If any Note called for redemption shall not be so
paid upon surrender thereof for redemption,  the principal shall,  until paid or
duly provided for, bear interest from the date fixed for redemption at the yield
to maturity borne by the Notes.

                Upon presentation of any Note redeemed in part
only, the Issuer shall execute and the Trustee shall authenticate and deliver to
or on the order of the Holder thereof,  at the expense of the Issuer, a new Note
or Notes, of authorized denominations,  in Principal Amount at Maturity equal to
the unredeemed portion of the Note so presented.

                SECTION 12.4 Exclusion of Certain Notes from
Eligibility  for  Selection  for  Redemption.   Notes  shall  be  excluded  from
eligibility  for selection for redemption if they are identified by registration
and certificate number in an Officers'  Certificate  delivered to the Trustee at
least 40 days prior to the last date on which notice of redemption  may be given
as being owned of record and  beneficially  by, and not pledged or  hypothecated
by: (a) the Issuer; (b) the Guarantor;  or (c) an entity specifically identified
in  such  Officers'  Certificate  as  directly  or  indirectly   controlling  or
controlled by or under direct or indirect  common control with the Issuer or the
Guarantor.





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                                ARTICLE THIRTEEN

                                    GUARANTEE

                SECTION 13.1 Telephone and Data Systems, Inc.
Guarantee.  For value received,  the Guarantor,  in accordance with this Article
Thirteen, hereby absolutely,  fully,  unconditionally and irrevocably guarantees
to the Trustee and the Holders,  as if the Guarantor were the principal  debtor,
the full and prompt  payment when due of all  Indenture  Obligations  (which for
purposes  of this  Guarantee  shall also be deemed to include  all  commissions,
fees, charges,  costs and other expenses  (including,  without  limitation,  all
court costs and reasonable legal fees and  disbursements of counsel) arising out
of,  or  incurred  by the  Trustee  or  the  Holders  in  connection  with,  the
enforcement of this Guarantee).

                SECTION 13.2 Continuing Guarantee; No Right of
Set-Off;  Independent  Obligation.  (a) This  Guarantee  shall  be a  continuing
guarantee of the payment of all Indenture  Obligations  and shall remain in full
force and effect until the payment in full of all of the  Indenture  Obligations
and shall apply to and secure any ultimate  balance due or  remaining  unpaid to
the Trustee or the Holders; and this Guarantee shall not be considered as wholly
or partially satisfied by the payment or liquidation at any time or from time to
time of any sum of money  for the time  being  due or  remaining  unpaid  to the
Trustee or the Holders.  Without  limiting the generality of the foregoing,  the
Guarantor's  liability shall extend to all amounts which  constitute part of the
Indenture  Obligations  and would be owed by the Issuer under this Indenture and
the  Notes  but for the fact  that  they are  unenforceable,  reduced,  limited,
impaired,  suspended or not  allowable  due to the  existence  of a  bankruptcy,
reorganization or similar proceeding involving the Issuer.

                (b)       The Guarantor hereby guarantees that the
Indenture   Obligations   will  be  paid  to  the  Trustee  without  set-off  or
counterclaim or other reduction  whatsoever  (whether for taxes,  withholding or
otherwise) in lawful currency of the United States of America.




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                (c)       The Guarantor's liability to pay or perform
or cause the performance of the Indenture Obligations under this Guarantee shall
arise  forthwith after demand for payment or performance by the Trustee has been
given to the Guarantor in the manner prescribed in Section 11.4 hereof.

                (d)       Except as provided herein, the provisions of
this Article  Thirteen cover all agreements  between the parties hereto relative
to this Guarantee and none of the parties shall be bound by any  representation,
warranty or promise made by any Person  relative  thereto  which is not embodied
herein;  and it is specifically  acknowledged and agreed that this Guarantee has
been delivered by the Guarantor  free of any  conditions  whatsoever and that no
representations,  warranties  or  promises  have  been  made  to  the  Guarantor
affecting its liabilities hereunder,  and that the Trustee shall not be bound by
any representations, warranties or promises now or at any time hereafter made by
the Issuer to the Guarantor.

                (e)       This Guarantee is a guarantee of payment and
not of  collectibility  and is in no way  conditioned  or  contingent  upon  any
attempt to collect from or enforce  performance  or  compliance by the Issuer or
upon any other event or condition whatsoever.

                (f)       The obligations of the Guarantor set forth
herein  constitute the full recourse  obligations  of the Guarantor  enforceable
against it to the full extent of all its assets and properties.

                SECTION 13.3 Guarantee Unconditional.  The
obligations of the Guarantor hereunder are independent of the obligations of the
Issuer under the Notes and this  Indenture and a separate  action or actions may
be brought  and  prosecuted  against the  Guarantor  whether or not an action or
proceeding is brought against the Issuer and whether or not the Issuer is joined
in any such action or  proceeding.  The liability of the Guarantor  hereunder is
irrevocable, absolute and unconditional and (to the extent permitted by law) the
liability  and  obligations  of the Guarantor  hereunder  shall not be released,
discharged, mitigated, waived, impaired or affected in whole or in part by:



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                (a)       any lack of validity or enforceability in
         respect of any  indebtedness  or other  obligation of the Issuer or any
         other Person under this  Indenture  or the Notes,  or any  agreement or
         instrument relating to any of the foregoing;

                (b)       any grants of time, renewals, extensions,
         indulgences, releases, discharges or modifications which the Trustee or
         the Holders may extend to, or make with,  the Issuer,  the Guarantor or
         any other Person, or any change in the time, manner or place of payment
         of, or in any other term of, all or any of the  Indenture  Obligations,
         or any other  amendment  or waiver of, or any  consent to or  departure
         from,  this Indenture or the Notes,  including any increase or decrease
         in the Indenture Obligations;

                (c)       the taking of security from the Issuer, the
         Guarantor or any other Person, and the release,
         discharge or alteration of, or other dealing with, such
         security;

                (d)       the abstention from taking security from the
         Issuer,   the  Guarantor  or  any  other  Person  or  from  perfecting,
         continuing to keep perfected or taking advantage of any security;

                (e)       any loss, diminution of value or lack of
         enforceability of any security received from the
         Issuer, the Guarantor or any other Person, and
         including any other guarantees received by the Trustee;
         
                (f)       any other dealings by the Issuer or the
         Guarantor with any other Person, or with any security;

                (g)       the Trustee's or the Holders' acceptance of
         compositions from the Issuer or the Guarantor;

                (h)       the application by the Holders or the Trustee
         of all  monies  at any  time and from  time to time  received  from the
         Issuer,   the   Guarantor  or  any  other  Person  on  account  of  any
         indebtedness  and  liabilities  owing by the Issuer or the Guarantor to
         the  Trustee  or the  Holders,  in such  manner as the  Trustee  or the
         Holders deems best and the changing of such application



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         in whole or in part and at any time or from time to time, or any manner
         of application of collateral, or proceeds thereof, to all or any of the
         Indenture Obligations, or the manner of sale of any collateral;

                (i)       the release or discharge of the Issuer or the
         Guarantor  or of any  other  guarantor  of the  Notes or of any  Person
         liable directly as surety or otherwise by operation of law or otherwise
         for the Notes,  other than an express  release in writing  given by the
         Trustee,  on behalf of the Holders, of the liability and obligations of
         the Guarantor hereunder;

                (j)       any change in the name, business, capital
         structure or governing instrument of the Issuer or the
         Guarantor or any refinancing or restructuring of any of
         the Indenture Obligations;

                (k)       the sale of the Issuer's or the Guarantor's
         business or any part thereof;

                (l)       any merger or consolidation, arrangement or
         reorganization of the Issuer, the Guarantor,  any Person resulting from
         the merger or  consolidation  of the Issuer or the  Guarantor  with any
         other  Person  or any  other  successor  to such  Person  or  merged or
         consolidated  Person or any other  change in the  corporate  existence,
         structure or ownership of the Issuer or the  Guarantor or any change in
         the corporate relationship between the Issuer and the Guarantor, or any
         termination of such relationship;

                (m)       the insolvency, bankruptcy, liquidation,
         winding-up,  dissolution,   receivership,   arrangement,  readjustment,
         assignment for the benefit of creditors or  distribution  of the assets
         of  the  Issuer  or  its  assets  or  any  resulting  discharge  of any
         obligations of the Issuer (whether  voluntary or involuntary) or of the
         Guarantor  (whether  voluntary or involuntary) or the loss of corporate
         existence;

                (n)       any arrangement or plan of reorganization
         affecting the Issuer or the Guarantor;




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                (o)       any failure, omission or delay on the part of
         the Issuer to conform or comply with any term of this
         Indenture;

                (p)       any limitation on the liability or
         obligations of the Issuer or any other person under this Indenture,  or
         any discharge, termination, cancellation,  distribution,  irregularity,
         invalidity or unenforceability in whole or in part, of this Indenture;

                (q)       any other circumstance that might otherwise
         constitute a defense available to, or discharge of, the
         Issuer or the Guarantor; or

                (r)       any modification, compromise, settlement or
         release by the Trustee,  or by operation  of law or  otherwise,  of the
         Indenture  Obligations  or the  liability  of the  Issuer  or any other
         obligor under the Notes, or of any collateral, in whole or in part, and
         any refusal of payment by the  Trustee,  in whole or in part,  from any
         other  obligor  or  other  guarantor  in  connection  with  any  of the
         Indenture Obligations, whether or not with notice to, or further assent
         by, or any reservation of rights against, the Guarantor.

                SECTION 13.4 Right to Demand Full Performance.
In the  event of any  demand  for  payment  by the  Trustee  from the  Guarantor
hereunder,  the Trustee or the  Holders  shall have the right to demand its full
claim and to  receive  all  payments  in  respect  thereof  until the  Indenture
Obligations  have been paid in full,  and the  Guarantor  shall  continue  to be
liable  hereunder  for any  balance  which  may be owing to the  Trustee  or the
Holders by the Issuer under this  Indenture and the Notes.  The retention by the
Trustee or the Holders of any security,  prior to the realization by the Trustee
or the Holders of its rights to such security upon  foreclosure  thereon,  shall
not, as between the Trustee and the  Guarantor,  be  considered as a purchase of
such  security,  or as  payment,  satisfaction  or  reduction  of the  Indenture
Obligations due to the Trustee or the Holders by the Issuer or any part thereof.
The Guarantor, promptly after demand, will reimburse the Trustee and the Holders
for all costs and expenses of collecting such amount under, or enforcing this



                                       100



<PAGE>



Guarantee,  including,  without limitation,  the reasonable fees and expenses of
counsel.

                SECTION 13.5 Waivers.  (a) The Guarantor hereby
expressly  waives (to the extent  permitted by law) notice of the  acceptance of
this Guarantee and notice of the incurrence,  existence,  renewal,  extension or
the non-performance, non-payment, or non-observance on the part of the Issuer of
any of the terms, covenants,  conditions and provisions of this Indenture or the
Notes or any other notice whatsoever to or upon the Issuer or the Guarantor with
respect  to the  Indenture  Obligations,  whether  by  statute,  rule  of law or
otherwise. The Guarantor hereby acknowledges communication to it of the terms of
this  Indenture and the Notes and all of the  provisions  therein  contained and
consents to and approves the same. The Guarantor hereby expressly waives (to the
extent permitted by law) diligence,  presentment, protest and demand for payment
with respect to (i) any notice of any sale, transfer or other disposition of any
right,  title to or interest  in the Notes by the Holders or in this  Indenture,
(ii) any release of the Guarantor from its obligations  hereunder resulting from
any loss by it of its  rights  of  subrogation  hereunder  and  (iii)  any other
circumstance  whatsoever  that might  otherwise  constitute a legal or equitable
discharge,  release or defense of a guarantor or surety or that might  otherwise
limit recourse against the Guarantor.

                (b)       Without prejudice to any of the rights or
recourses  which the  Trustee or the Holders  may have  against the Issuer,  the
Guarantor  hereby expressly waives (to the extent permitted by law) any right to
require the Trustee or the Holders to:

                (i) enforce, assert,  exercise,  initiate or exhaust any
         rights,  remedies or recourse against the Issuer,  the Guarantor or any
         other Person under this Indenture or otherwise;

                (ii)   value, realize upon, or dispose of any
         security of the Issuer or any other Person held by the
         Trustee or the Holders;




                                       101



<PAGE>



                (iii)   initiate or exhaust any other remedy which
         the Trustee or the Holders may have in law or equity;
         or
                (iv)   mitigate the damages resulting from any
         default under this Indenture;

before requiring or becoming entitled to demand payment from the Guarantor under
this Guarantee.

                SECTION 13.6 The Guarantor  Remains Obligated in the Event the
Issuer is No Longer  Obligated to  Discharge  Indenture  Obligations.  It is the
express  intention of the Trustee and the  Guarantor  that if for any reason the
Issuer  has no legal  existence,  is or  becomes  under no legal  obligation  to
discharge the Indenture  Obligations  owing to the Trustee or the Holders by the
Issuer or if any of the Indenture Obligations owing by the Issuer to the Trustee
or the Holders becomes  irrecoverable from the Issuer by operation of law or for
any  reason  whatsoever,  this  Guarantee  and  the  covenants,  agreements  and
obligations  of  the  Guarantor   contained  in  this  Article   Thirteen  shall
nevertheless  be  binding  upon  the  Guarantor,  until  such  time as all  such
Indenture  Obligations  have been paid in full to the Trustee and all  Indenture
Obligations  owing  to the  Trustee  or the  Holders  by the  Issuer  have  been
discharged,  or such  earlier  time as Section 10.1 shall apply to the Notes and
the Guarantor shall be responsible for the payment thereof to the Trustee or the
Holders upon demand.

                SECTION 13.7 Subrogation.  The Guarantor will not exercise any
rights  that it may now or  hereafter  acquire  against  the Issuer or any other
guarantor that arise from the existence,  payment, performance or enforcement of
the Guarantor's  obligations under the Guarantee including,  without limitation,
any  right  of   subrogation,   reimbursement,   exoneration,   contribution  or
indemnification  and any  right to  participate  in any  claim or  remedy of the
Holders or the Trustee against the Issuer or any other guarantor, whether or not
such  claim,  remedy or right  arises in equity or under  contract,  statute  or
common law, including, without limitation, the right to take or receive from the
Issuer or any other guarantor, directly or indirectly, in cash or other property
or by set-off or in any other  manner,  payment or  security  on account of such
claim, remedy or right,



                                       102



<PAGE>



unless and until all of the Indenture  Obligations and all other amounts payable
under this Guarantee shall have been paid in full in cash.

                SECTION 13.8 Guarantee Is In Addition to Other Security.  This
Guarantee  shall  be in  addition  to and  not in  substitution  for  any  other
guarantees  or other  security  which the Trustee may now or  hereafter  hold in
respect of the Indenture  Obligations owing to the Trustee or the Holders by the
Issuer and  (except as may be  required  by law) the  Trustee  shall be under no
obligation to marshal in favor of the  Guarantor  any other  guarantees or other
security  or any moneys or other  assets  which the  Trustee  may be entitled to
receive or upon which the Trustee or the Holders may have a claim.

                SECTION 13.9 Release of Security  Interests.  Without limiting
the  generality  of the  foregoing  and  except as  otherwise  provided  in this
Indenture,  the  Guarantor  hereby  consents and agrees,  to the fullest  extent
permitted by applicable law, that the rights of the Trustee  hereunder,  and the
liability  of the  Guarantor  hereunder,  shall not be  affected  by any and all
releases for any purpose of any collateral,  if any, from the Liens and security
interests  created by any  collateral  document  and that this  Guarantee  shall
continue to be  effective or be  reinstated,  as the case may be, if at any time
any payment of any of the Indenture  Obligations  is rescinded or must otherwise
be returned by the Trustee upon the insolvency,  bankruptcy or reorganization of
the Issuer or otherwise, all as though such payment had not been made.

                SECTION 13.10 No Bar to Further Actions.  Except as provided by
law, no action or proceeding  brought or instituted  under this Article Thirteen
and this  Guarantee and no recovery or judgment in pursuance  thereof shall be a
bar or defense to any further  action or  proceeding  which may be brought under
this  Article  Thirteen and this  Guarantee by reason of any further  default or
defaults  under Article  Thirteen and this Guarantee or in the payment of any of
the Indenture Obligations owing by the Issuer.

                SECTION 13.11  Failure to Exercise Rights Shall
Not Operate As a Waiver; No Suspension of Remedies.  (a)  No



                                       103



<PAGE>



failure to exercise  and no delay in  exercising,  on the part of the Trustee or
the Holders,  any right, power,  privilege or remedy under this Article Thirteen
and this Guarantee  shall operate as a waiver  thereof,  nor shall any single or
partial exercise of any right, power,  privilege or remedy preclude any other or
further exercise thereof, or the exercise of any other right, powers, privileges
or remedies.  The rights and remedies herein provided for are cumulative and not
exclusive of any rights or remedies provided in law or equity.

                (b) Nothing contained in this Article Thirteen shall limit the
right of the  Trustee  or the  Holders  to take any  action  to  accelerate  the
maturity  of the Notes  pursuant  to  Article  Five or to pursue  any  rights or
remedies hereunder or under applicable law.

                SECTION  13.12  Release of  Guarantee.  Concurrently  with the
payment in full of all of the Indenture Obligations, then the Guarantor shall be
released from and relieved of its obligations under this Article Thirteen.  Upon
the  delivery by the Issuer to the Trustee of an Officers'  Certificate  and, if
requested  by the  Trustee,  an  Opinion  of  Counsel  to the  effect  that  the
transaction  giving rise to the release of this Guarantee was made by the Issuer
in accordance  with the provisions of this Indenture and the Notes,  the Trustee
shall execute any documents reasonably required in order to evidence the release
of the  Guarantor  from its  obligations  under  this  Guarantee.  If any of the
Indenture  Obligations are revived and reinstated  after the termination of this
Guarantee,  then all of the  obligations  of the Guarantor  under this Guarantee
shall be revived and  reinstated as if this  Guarantee  had not been  terminated
until such time as the Indenture Obligations are paid in full, and the Guarantor
shall enter into an amendment to this Guarantee,  reasonably satisfactory to the
Trustee, evidencing such revival and reinstatement.

                SECTION  13.13   Execution  of  Guarantee.   To  evidence  the
Guarantee,  the Guarantor  hereby  agrees to execute a notation  relating to the
Guarantee  substantially  in the form set forth in Exhibit A, to be  endorsed on
each Note  authenticated  and  delivered by the Trustee and that this  Indenture
shall be executed on behalf of the Guarantor



                                       104



<PAGE>



by its Chairman of the Board, its President or one of its Vice Presidents.
The signature of any of these officers on the Notes may be manual or facsimile.

                If an officer whose  signature is on this  Indenture no longer
holds that  office at the time the  Trustee  authenticates  a Note on which this
Guarantee is endorsed, such Guarantee shall be valid nevertheless.

                The Guarantor hereby agrees that the Guarantee shall remain in
full  force and  effect  notwithstanding  any  failure to include on each Note a
notation  relating to the  Guarantee.  The  delivery of any Note by the Trustee,
after the authentication thereof hereunder, shall constitute due delivery of the
Guarantee set forth in this Indenture on behalf of the Guarantor.

                SECTION 13.14 Guarantee Unsecured Unsubordinated  Indebtedness
of Guarantor.  The  indebtedness  represented  by this Guarantee is an unsecured
unsubordinated  obligation of the Guarantor and in all respects  shall rank pari
passu with all existing and future unsecured unsubordinated  indebtedness of the
Guarantor.




                                       105



<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed and delivered as of November 4, 1996.



                         AMERICAN PORTABLE TELECOM, INC.,
                              as Issuer


                         By:___________________________________________
                         Name:
                         Title:


                         TELEPHONE AND DATA SYSTEMS, INC.,
                              as Guarantor


                         By:___________________________________________
                         Name:
                         Title:


                         THE FIRST NATIONAL BANK OF CHICAGO,
                              as Trustee


                         By:___________________________________________
                         Name:
                         Title:





                                                   106



<PAGE>



                                                                   EXHIBIT A


                             [FORM OF FACE OF NOTE]

                              [Global Note Legend]


                  UNLESS  THIS   CERTIFICATE   IS  PRESENTED  BY  AN  AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION  ("DTC"),
NEW YORK,  NEW YORK,  TO THE ISSUER OR ITS AGENT FOR  REGISTRATION  OF TRANSFER,
EXCHANGE OR PAYMENT,  AND ANY  CERTIFICATE  ISSUED IS  REGISTERED IN THE NAME OF
CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
DTC  (AND ANY  PAYMENT  IS MADE TO CEDE & CO.,  OR TO SUCH  OTHER  ENTITY  AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR  OTHERWISE  BY OR TO ANY PERSON IS WRONGFUL  INASMUCH AS
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                  TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS IN
WHOLE,  BUT NOT IN PART,  TO NOMINEES  OF DTC OR TO A SUCCESSOR  THEREOF OR SUCH
SUCCESSOR'S  NOMINEE  AND  TRANSFERS  OF  PORTIONS  OF THIS GLOBAL NOTE SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE  RESTRICTIONS  SET FORTH IN THE
INDENTURE REFERRED TO ON THE REVERSE HEREOF.*

                            [Restricted Note Legend]

                  "THIS  NOTE  (OR  ITS   PREDECESSOR)  HAS  BEEN  ISSUED  IN  A
         TRANSACTION EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES
         ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),  AND UNDER APPLICABLE
         STATE  SECURITIES  LAWS,  AND  THIS  NOTE MAY NOT BE  OFFERED,  SOLD OR
         OTHERWISE  TRANSFERRED  IN  THE  ABSENCE  OF  SUCH  REGISTRATION  OR AN
         APPLICABLE EXEMPTION  THEREFROM.  EACH PURCHASER OF THIS NOTE IS HEREBY
         NOTIFIED  THAT  THE  SELLER  OF THIS  SECURITY  MAY BE  RELYING  ON THE
         EXEMPTION
- --------
     * This legend should only be added if the Note is issued in global form.



                                       A-1
                                                                              

<PAGE>



         FROM THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE
         144A THEREUNDER.

                  THE HOLDER OF THIS NOTE  AGREES FOR THE  BENEFIT OF THE ISSUER
         THAT (A)  THIS  NOTE  MAY BE  OFFERED,  RESOLD,  PLEDGED  OR  OTHERWISE
         TRANSFERRED,  ONLY (i) TO A PERSON WHOM THE SELLER REASONABLY  BELIEVES
         IS A QUALIFIED  INSTITUTIONAL  BUYER (AS DEFINED IN RULE 144A UNDER THE
         SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A,
         (ii) IN AN OFFSHORE  TRANSACTION IN ACCORDANCE  WITH RULE 904 UNDER THE
         SECURITIES ACT, (iii) PURSUANT TO AN EXEMPTION FROM REGISTRATION  UNDER
         THE  SECURITIES  ACT PROVIDED BY RULE 144  THEREUNDER (IF AVAILABLE) OR
         (iv)  PURSUANT  TO  AN  EFFECTIVE   REGISTRATION  STATEMENT  UNDER  THE
         SECURITIES  ACT, IN EACH OF CASES (i) THROUGH (iv) IN  ACCORDANCE  WITH
         ANY APPLICABLE  SECURITIES LAWS OF ANY STATE OF THE UNITED STATES,  AND
         (B) THE HOLDER WILL, AND EACH SUBSEQUENT  HOLDER IS REQUIRED TO, NOTIFY
         ANY PURCHASER OF THIS NOTE FROM IT OF THE RESALE RESTRICTIONS  REFERRED
         TO IN (A) ABOVE."

         ["IN  CONNECTION  WITH ANY  TRANSFER,  THE HOLDER  WILL  DELIVER TO THE
         REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS
         SUCH TRANSFER AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER
         COMPLIES WITH THE FOREGOING RESTRICTIONS.]**

- --------
              ** Include  on a  Definitive  Note to be held by an  institutional
         "accredited  investor" (as defined in Rule 501(a), (1), (2), (3) or (7)
         under the Securities Act).



                                       A-2
                                                                               
<PAGE>



                  FOR PURPOSES OF SECTIONS 1273 AND 1275 OF THE INTERNAL REVENUE
CODE OF 1986, AS AMENDED,  RELATING TO "ORIGINAL ISSUE DISCOUNT," THE ISSUE DATE
OF THIS NOTE IS NOVEMBER 4, 1996,  THE ISSUE PRICE FOR EACH $1,000 OF  PRINCIPAL
AMOUNT PAYABLE AT MATURITY IS $442.00, THE AMOUNT OF ORIGINAL ISSUE DISCOUNT FOR
EACH $1,000 OF PRINCIPAL AMOUNT PAYABLE AT MATURITY IS $558.00, AND THE YIELD TO
MATURITY IS 8.34% PER ANNUM, COMPOUNDED SEMI-ANNUALLY.


                         AMERICAN PORTABLE TELECOM, INC.

                     Fully and Unconditionally Guaranteed by
                        TELEPHONE AND DATA SYSTEMS, INC.


No.                                               CUSIP: 029062AA4

Issue Date:  November 4, 1996
Issue Price:  $442.00                             Original Issue Discount:
(for each $1,000 Principal                        $558.00 (for each $1,000
Amount at Maturity)                               Principal Amount at Maturity)

                       Series A Zero Coupon Note Due 2006


                  American Portable Telecom, Inc., a Delaware
corporation, promises to pay to                        or
registered assigns, the Principal Amount at Maturity of
                 Dollars ($_________) on November 1, 2006.

                  This Note shall not bear  interest  except as specified on the
other side of this Note. Original Issue Discount will accrue as specified on the
other side of this Note.

                  Additional  provisions of this Note are set forth on the other
side of this Note.


                                                  AMERICAN PORTABLE TELECOM,
                                                  INC.

                                                       by



                                       A-3
                                                                               

<PAGE>



[Seal]
                                                 ----------------------------
                                                 Title:


                                                 ----------------------------
                                                 Title:


Dated:   November 4, 1996


TRUSTEE'S CERTIFICATE OF
      AUTHENTICATION

THE FIRST NATIONAL BANK OF CHICAGO

  as Trustee, certifies
  that this is one of the
  Notes referred to
  in the Indenture.

  by
         --------------------
         Authorized Signatory




                                       A-4
                                                                              

<PAGE>



                         [FORM OF REVERSE SIDE OF NOTE]

                         AMERICAN PORTABLE TELECOM, INC.

                     Fully and Unconditionally Guaranteed by

                        TELEPHONE AND DATA SYSTEMS, INC.

                       Series A Zero Coupon Note Due 2006


1.       Interest

                  This  Note  shall  not  bear  interest,  except  that  if  the
Principal  Amount at Maturity hereof or any portion of such Principal  Amount at
Maturity is not paid when due (whether upon acceleration pursuant to Section 5.1
of the Indenture, upon the date set for payment of the Redemption Price pursuant
to  paragraph 5 hereof or upon the stated  maturity of this Note),  then in each
such case the overdue amount shall bear interest at the yield to maturity on the
Notes, compounded semi-annually,  which interest,  including interest thereon at
the same rate, compounded  semi-annually (to the extent that the payment of such
interest shall be legally enforceable),  shall accrue from the date such overdue
amount  was  due to the  date of  payment  of such  amount,  including  interest
thereon,  has been made or duly provided for. All such interest shall be payable
on demand.

                  Original  Issue  Discount  (the  difference  between the Issue
Price and the  Principal  Amount at Maturity of the Note),  in the period during
which a Note  remains  outstanding,  shall  accrue  at  8.34%  per  annum,  on a
semi-annual bond equivalent basis using a 360-day year composed of twelve 30-day
months, commencing on the Issue Date of this Note.


2.       Method of Payment

                  Subject  to the terms and  conditions  of the  Indenture,  the
Issuer  will  make  payments  in  respect  of the Notes to the  persons  who are
registered  Holders  of  Notes at the  close of  business  on the  Business  Day
preceding the



                                       A-5
                                                                              

<PAGE>



redemption date or stated  maturity,  as the case may be. Holders must surrender
Notes to a Paying  Agent to collect such  payments in respect of the Notes.  The
Issuer will pay cash  amounts in money of the United  States that at the time of
payment is legal tender for payment of public and private  debts.  However,  the
Issuer may make such cash payments payable by check payable in such money.

3.       Paying Agent and Registrar

                  Initially, The First National Bank of Chicago (the "Trustee"),
will act as Paying  Agent and  Registrar.  The Issuer may appoint and change any
Paying Agent, Registrar or co-registrar without notice, other than notice to the
Trustee.  The  Issuer  or any  of its  domestically  incorporated  Wholly  Owned
Subsidiaries may act as Paying Agent, Registrar or co-registrar.


4.       Indenture

                  The Issuer  issued the Notes  under an  Indenture  dated as of
November  4,  1996  (the  "Indenture"),  among the  Issuer,  Telephone  and Data
Systems,  Inc., an Iowa corporation (the "Guarantor") and the Trustee. The terms
of the Notes  include  those  stated in the  Indenture.  Capitalized  terms used
herein  and not  defined  herein  have  the  meanings  ascribed  thereto  in the
Indenture. The Notes are subject to all such terms, and Noteholders are referred
to the Indenture for a statement of those terms.

                  The  Notes are  unsecured  unsubordinated  obligations  of the
Issuer, ranking pari passu with all other unsecured unsubordinated  indebtedness
of the Issuer and limited to $226,245,000 aggregate Principal Amount at Maturity
(subject  to  Section  2.6 of the  Indenture).  The  Indenture  imposes  certain
limitations  on,  among  other  things,  the  creation  of  Secured  Debt by the
Guarantor and the  participation  by the Guarantor in certain Sale and Leaseback
transactions.







                                       A-6
                                                                               

<PAGE>



5.       Optional Redemption

                  No sinking fund is provided  for the Notes.  The Notes may not
be redeemed  prior to November 1, 2001.  On and after that date,  the Issuer may
redeem  the  Notes  in whole  or in part at any  time at the  Redemption  Prices
specified below.

                  The table below shows  Redemption  Prices of a Note per $1,000
Principal  Amount at Maturity on November 1, 2001, at each November 1 thereafter
prior to maturity and at maturity on November 1, 2006,  which prices reflect the
accrued  Original  Issue  Discount  calculated at each such date. The Redemption
Price of a Note redeemed  between such dates would include an additional  amount
reflecting  the  additional  Original  Issue  Discount  accrued  since  the next
preceding date in the table.




                                       A-7
                                                                              
<PAGE>




                              (1)               (2)                  (3)
                                             Original              
                                              Issue               Redemption
   Redemption                               Discount at              Price
      Date                Issue Price          8.34%               (1) +(2)
   ----------             -----------       -----------           ----------
November 1, 2001            $442.00           $222.60              $ 664.60
November 1, 2002             442.00            279.20                721.20
November 1, 2003             442.00            340.60                782.60
November 1, 2004             442.00            407.20                849.20
November 1, 2005             442.00            479.50                921.50
November 1, 2006             442.00            558.00              1,000.00

6.       Notice of Redemption

                  Notice of  redemption  will be mailed at least 30 days but not
more  than 60 days  before  the  redemption  date to each  Holder of Notes to be
redeemed at the Holder's registered address.  Securities in denominations larger
than $1,000  Principal  Amount at  Maturity  may be redeemed in part but only in
integral  multiples of $1,000 Principal Amount at Maturity.  If money sufficient
to pay the  redemption  price  of all the  Notes  (or  portions  thereof)  to be
redeemed on the redemption  date is deposited with the Paying Agent on or before
the redemption  date and certain other  conditions  are satisfied,  on and after
such date  Original  Issue  Discount  ceases  to  accrue on such  Notes (or such
portions thereof) called for redemption.


7.       Guarantee

                  Payment and  performance  of the Indenture  Obligations of the
Issuer in connection with the Indenture and the Notes are fully, unconditionally
and  absolutely  guaranteed  by the  Guarantor in  accordance  with the terms of
Article Thirteen of the Indenture.







                                       A-8
                                                                               

<PAGE>


8.       Denominations; Transfer; Exchange

                  The  Notes  are  in   registered   form  without   coupons  in
denominations  of $1,000  Principal Amount at Maturity (or, in the case of Notes
sold to  institutional  "accredited  investors" as described in Rule  501(a)(1),
(2), (3) or (7) under the Securities Act in a transaction  intended to be exempt
from registration  under the Securities Act, minimum  denominations of $250,000)
and integral  multiples  of $1,000  Principal  Amount at Maturity.  A Holder may
transfer or exchange Notes in accordance  with the Indenture.  The Registrar may
require a Holder,  among other things,  to furnish  appropriate  endorsements or
transfer documents and to pay any taxes and fees required by law or permitted by
the  Indenture.  The Registrar need not register the transfer of or exchange any
Notes selected for redemption  (except,  in the case of a Note to be redeemed in
part, the portion of the Note not to be redeemed) or any Securities for a period
of 15 days before a selection of Notes to be redeemed.


9.       Persons Deemed Owners

                  The registered holder of this Note may be treated as the owner
of it for all purposes.  Owners of a beneficial interest in the Global Note will
not be considered the owners or Holders of any Note. So long as the  Depository,
or its  nominee,  is the  Holder of the  Global  Note,  the  Depository  or such
nominee, as the case may be, will be considered the sole owner and Holder of the
Notes  represented  by the Global Notes for all purposes under the Indenture and
this Note.


10.      Unclaimed Money

                  If money for the  payment  of any amount  with  respect to the
Notes remains unclaimed for two years, the Trustee or Paying Agent shall pay the
money back to the Issuer at its request unless the applicable abandoned property
law designates another person.  After any such payment,  Holders entitled to the
money must look only to the Issuer and not to the Trustee for payment.






                                       A-9
                                                                              

<PAGE>



11.      Defeasance

                  Subject  to  certain  conditions,  the  Issuer at any time may
terminate  some or all of its  obligations  under the Notes and the Indenture if
the Issuer  deposits with the Trustee money or  Government  Obligations  for the
payment of the Principal Amount at Maturity on all the Notes.


12.      Amendment, Waiver

                  Subject to certain exceptions set forth in the Indenture,  (i)
the Indenture may be amended with the written consent of the Holders of at least
a majority in Principal Amount at Maturity Outstanding of the Notes and (ii) any
default or  noncompliance  with any  provision  may be waived  with the  written
consent of the Holders of a majority in Principal Amount at Maturity Outstanding
of the Notes. Subject to certain exceptions set forth in the Indenture,  without
the consent of any  Noteholder,  the Issuer,  the  Guarantor and the Trustee may
amend the Indenture to cure any ambiguity,  omission,  defect or  inconsistency,
provided that no such action  adversely  affects Holders of the Notes, or to add
guarantees  with  respect to the  Securities,  or to provide for  uncertificated
Notes in addition to or in place of  certificated  Notes,  or to add  additional
covenants, or to secure the Notes.


13.      Defaults and Remedies

                  Under the Indenture,  Events of Default include (a) default in
any payment of the Principal Amount at Maturity,  Issue Price,  accrued Original
Issue  Discount or  Redemption  Price on the Notes when the same becomes due and
payable;  (b) failure on the part of the  Guarantor or the Issuer to comply with
other  agreements in the Notes or in the Indenture,  subject to notice and lapse
of time; (c) certain  accelerations  (including  failure to pay within any grace
period after final maturity) of other indebtedness if the amount accelerated (or
so unpaid) equals or exceeds 2% of Consolidated Capitalization of the Guarantor;
(d) the Guarantee  ceases to be in full force and effect or the Guarantor or any
person acting on behalf of the Guarantor shall deny or disaffirm the Guarantor's
obligations under



                                      A-10
                                                                               

<PAGE>



the Guarantee; or (e) certain events of bankruptcy or
insolvency of the Guarantor or the Issuer.

                  If an Event of Default shall have occurred and be  continuing,
then,  unless the  principal  amount of all of the Notes  shall have  previously
become due and  payable,  either the  Trustee or the  Holders of at least 25% in
aggregate Principal Amount at Maturity of the Notes then Outstanding may declare
all the Notes to be immediately due and payable. Certain events of bankruptcy or
insolvency are Events of Default which will result in the Notes becoming due and
payable immediately upon the occurrence of such Events of Default.

                  Noteholders  may not enforce the Indenture or the Notes except
as provided in the Indenture. The Trustee may refuse to enforce the Indenture or
the Notes  unless it  receives  reasonable  indemnity  or  security.  Subject to
certain  limitations,  Holders of a majority in  aggregate  Principal  Amount at
Maturity  of the Notes at the time  Outstanding  may direct  the  Trustee in its
exercise of any trust or power. The Trustee may withhold from Noteholders notice
of any continuing  Default (except a Default in payment of amounts  specified in
clause  (a)  above)  if it  determines  that  withholding  notice  is  in  their
interests.


14.      Trustee Dealings with the Issuer

                  Subject  to  certain   limitations,   the  Trustee  under  the
Indenture,  in its  individual  or any other  capacity,  may become the owner or
pledgee of Notes and may otherwise deal with and collect  obligations owed to it
by the Issuer or its  affiliates  and may otherwise  deal with the Issuer or its
affiliates with the same rights it would have if it were not Trustee.


15.      No Recourse Against Others

                  A director, officer, employee, stockholder or incorporator, as
such,  of the  Issuer  or the  Guarantor  shall not have any  liability  for any
obligations  of the Issuer or the Guarantor  under the Notes or the Indenture or
for any



                                      A-11
                                                                               
<PAGE>



claim  based  on,  in  respect  of or by  reason  of such  obligations  or their
creation.  By  accepting a Note,  each  Noteholder  waives and releases all such
liability. The waiver and release are part of the consideration for the issue of
the Notes.


16.      Authentication

                  This Note shall not be valid until an authorized  signatory of
the Trustee (or an  authenticating  agent)  manually  signs the  certificate  of
authentication on the other side of this Note.


17.      Abbreviations

                  Customary   abbreviations  may  be  used  in  the  name  of  a
Noteholder  or an  assignee,  such as TEN COM (= tenants in common),  TEN ENT (=
tenants by the entireties),  JT TEN (= joint tenants with rights of survivorship
and not as tenants in common), CUST (= custodian) and U/G/M/A (= Uniform Gift to
Minors Act).


18.      CUSIP Numbers

                  Pursuant to a  recommendation  promulgated by the Committee on
Uniform Security  Identification  Procedures the Issuer has caused CUSIP numbers
to be printed on the Notes and has directed the Trustee to use CUSIP  numbers in
notices of redemption as a convenience to Noteholders. No representation is made
as to the  accuracy  of such  numbers  either  as  printed  on the  Notes  or as
contained  in any notice of  redemption  and  reliance may be placed only on the
other identification numbers placed thereon.


19.      Governing Law

                  THIS NOTE SHALL BE GOVERNED BY, AND  CONSTRUED  IN  ACCORDANCE
WITH, THE LAWS OF THE STATE OF ILLINOIS,  EXCEPT AS MAY OTHERWISE BE REQUIRED BY
MANDATORY PROVISIONS OF LAW.




                                      A-12
                                                                               

<PAGE>



                  The Issuer will furnish to any Noteholder upon written request
and without charge to the Noteholder a copy of the Indenture which has in it the
text of this Note in larger type. Requests may be made to:


                                    American Portable Telecom, Inc.
                                    8410 West Bryn Mawr Avenue
                                    Suite 1100
                                    Chicago, Illinois 60631

                                    Attention: Chief Financial Officer




                                      A-13
                                                                               

<PAGE>



                        FORM OF NOTATION ON NOTE RELATING
                                  TO GUARANTEE

             The Guarantor  (which term includes any successor  person under the
Indenture), has fully,  unconditionally and absolutely guaranteed, to the extent
set forth in the Indenture and subject to the provisions in the  Indenture,  the
complete and punctual  payment and  performance  by the Issuer of the  Indenture
Obligations in connection  with the Indenture and the Notes,  and further agrees
to pay any and all expenses (including,  without limitation, all court costs and
reasonable fees and  disbursements  of counsel) which may be paid or incurred by
the Trustee or the Holders in enforcing  their rights under the  Guarantee.  The
indebtedness  evidenced  by  the  Guarantees  is  an  unsecured   unsubordinated
obligation of the  Guarantor and in all respects  shall rank pari passu with all
existing and future unsecured unsubordinated indebtedness of the Guarantor.

             The obligations of the Guarantor to the Holders of Notes and to the
Trustee  pursuant to the  Guarantee and the Indenture are expressly set forth in
Article  Thirteen of the Indenture and reference is hereby made to the Indenture
for the precise terms of the  Guarantee.  Capitalized  terms used herein and not
defined herein have the meanings ascribed thereto in the Indenture.


TELEPHONE AND DATA
 SYSTEMS, INC.
                                                          [SEAL]


By________________________
Title:


Attest:___________________
       Title:



                                      A-14
                                                                              

<PAGE>



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





                                 ASSIGNMENT FORM


    To assign this Note, fill in the form below:

    I or we assign and transfer this Note to

             (Print or type assignee's name, address and zip code)

             (Insert assignee's soc. sec. or tax I.D. No.)

             And irrevocably appoint agent to transfer this Note on the books of
             the Issuer. The agent may substitute another to act for him.




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




Date:____________________    Your Signature:__________________________________




- -------------------------------------------------------------------------------
Sign exactly as your name appears on the other side of this Security.



Signature Guarantee:   ________________________________________________________
                       (Signature must be guaranteed by an
                       "eligible guarantor institution" that
                       is, a bank, stockbroker, savings and
                       loan association or credit union
                       meeting the requirements of the
                       Registrar, which requirements include
                       membership or participation in the



                                      A-15
                                                                              
<PAGE>



                       Securities Transfer Agents Medallion
                       Program ("STAMP") or such other
                       "signature guarantee program" as may
                       be determined by the Registrar in
                       addition to, or in substitution for,
                       STAMP.)



                                      A-16
                                                                              
<PAGE>



          CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION OF
                           TRANSFER OF RESTRICTED NOTE

This  certificate  relates to $_________  Principal  Amount at Maturity of Notes
held in (check applicable space) ____ book-entry or _____ definitive form by the
undersigned.

The undersigned (check one box below):

|_| has  requested  the Trustee by written  order to deliver in exchange for its
    beneficial  interest  in the Global  Note held by the  Depository  a Note or
    Notes in  definitive,  registered  form of authorized  denominations  and an
    aggregate  principal amount equal to its beneficial  interest in such Global
    Note (or the portion thereof indicated above); or

|_| has  requested  the Trustee by written  order to  exchange  or register  the
    transfer of a Note or Notes.

The undersigned confirms that such Notes are being:

CHECK ONE BOX BELOW:

             (1)      |_|     acquired for the undersigned's own account,
                              without transfer (in satisfaction of
                              Section 2.5(a)(ii)(A) of the Indenture); or

             (2)      |_|     transferred to the Issuer; or

             (3)      |_|     transferred pursuant to and in compliance
                              with Rule 144A under the Securities Act of
                              1933, as amended; or

             (4)      |_|     transferred pursuant to and in compliance
                              with Regulation S under the Securities Act
                              of 1933, as amended; or

             (5)      |_|     transferred pursuant to and in compliance
                              with Rule 144 under the Securities Act of
                              1933, as amended; or




                                      A-17
                                                                              

<PAGE>



             (6)      |_|     transferred pursuant to an effective
                              registration statement under the Securities
                              Act of 1933, as amended.






Unless one of the boxes is checked,  the Trustee  will refuse to register any of
the Notes evidenced by this certificate in the name of any person other than the
registered  holder thereof;  provided,  however,  that if box (4), (5) or (6) is
checked, the Issuer or the Trustee may require evidence reasonably  satisfactory
to them as to the compliance  with the  restrictions  set forth in the legend on
the face of this Security.



                                    ------------------------------------------
                                                    Signature

Signature Guarantee:
                       -------------------------------------------------------
                       (Signature must be guaranteed by an
                       "eligible guarantor institution", that
                       is, a bank,  stockbroker,  saving  and loan
                       association  or credit  union  meeting  the
                       requirements   of  the   Registrar,   which
                       requirements    include    membership    or
                       participation  in the  Securities  Transfer
                       Agents Medallion  Program ("STAMP") or such
                       other signature guarantee program as may be
                       determined by the Registrar in addition to,
                       or in substitution for, STAMP.)
                       




                                      A-18
                                                                              

<PAGE>



                         [TO BE ATTACHED TO GLOBAL NOTE]

                SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE

          The  following  increases  or  decreases in this Global Note have been
made:

========  ================  ================  =================  ===============
                                              Principal Amount
          Amount of         Amount of         at Maturity        Siganture of
          decrease in       increase in       of this Global     authorized
          Principal amount  Principal Amount  Note following     signatory of
Date of   at Maturity of    at Maturity of    such decrease      Trustee or
Exchange  this Global Note  this Global Note  or increase        Notes Custodian
- --------  ----------------  ----------------  -----------------  ---------------





                                      A-19
                                                                              

<PAGE>





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