OMNICOM GROUP INC
S-3, 1998-02-13
ADVERTISING AGENCIES
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    As filed with the Securities and Exchange Commission on February 13, 1998

                                                      Registration No. 333-_____
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                ----------------
                          
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

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

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

            New York                                             13-1514814
  (State or other jurisdiction                                (I.R.S. Employer
of incorporation or organization)                            Identification No.)

                               437 Madison Avenue
                            New York, New York 10022
                                 (212) 415-3600
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                              BARRY J. WAGNER, ESQ.
                          Secretary and General Counsel
                               Omnicom Group Inc.
                               437 Madison Avenue
                            New York, New York 10022
                                 (212) 415-3600
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

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

                                   COPIES TO:
                              LINDA E. RANSOM, ESQ.
                       Donovan Leisure Newton & Irvine LLP
                              30 Rockefeller Plaza
                            New York, New York 10112
                                 (212) 632-3000

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

      Approximate date of commencement of proposed sale to public:  From time to
time  after  the  effective  date of the  Registration  Statement.  If the  only
securities  being registered on this Form are being offered pursuant to dividend
or interest reinvestment plans, please check the following box: [_]

      If any of the securities  being  registered on this Form are to be offered
on a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act
of 1933,  other than  securities  offered only in  connection  with  dividend or
interest reinvestment plans, please check the following box: [X]

      If this form is filed to register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  Registration  Statement  number  of the  earlier
effective Registration Statement for the same offering [_]

      If this form is a  post-effective  amendment filed pursuant to Rule 462(c)
under the Securities Act, please check the following box and list the Securities
Act  Registration   Statement  number  of  the  Earlier  effective  Registration
Statement for the same offering [_]

      If delivery of the Prospectus is expected to be made pursuant to Rule 434,
please check the following box [_]

                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
========================================================================================================================
                                                        Proposed maximum
Title of each class of            Proposed amount        offering price       Maximum aggregate         Amount of
securities to be registered       to be registered          per unit            offering price      registration fee
- ------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>                    <C>               <C>                     <C>  
Common Stock (par value 
$.50 per share), Preferred 
Stock (par value $1.00 per
share), Depositary Shares,
Debt Securities and Warrants         
(1)(2)(3)(4)..................       (1)(2)(3)               (1)(3)            $500,000,000(3)(5)      $147,500(3)(6)
========================================================================================================================
</TABLE>

(1)   There are being registered  hereunder such indeterminate  number of shares
      of Common Stock and Preferred Stock of the Registrant,  such indeterminate
      principal  amount of Debt  Securities,  and such  indeterminate  number of
      Depositary Shares and Warrants to purchase  Preferred Stock,  Common Stock
      or Debt  Securities of the  Registrant as shall have an aggregate  initial
      offering  price not to exceed  $500,000,000.  If any Debt  Securities  are
      issued at an original issue discount, then the securities registered shall
      include such  additional Debt Securities as may be necessary such that the
      aggregate  initial public offering price of all securities issued pursuant
      to this  Registration  Statement will equal  $500,000,000.  Any securities
      registered  hereunder  may be  sold  separately  or as  units  with  other
      securities  registered  hereunder.  The proposed  maximum initial offering
      price per unit will be determined, from time to time, by the Registrant in
      connection   with  the  issuance  by  the  Registrant  of  the  securities
      registered hereunder.
(2)   There are also being  registered  hereunder such  indeterminate  number of
      shares of Common Stock and Preferred  Stock of the  Registrant as shall be
      issuable upon  conversion of convertible  Debt  Securities or of shares of
      Convertible Preferred Stock registered hereby.
(3)   Not  specified  with respect to each class of  securities to be registered
      pursuant to General Instruction II.D. of Form S-3 under the Securities Act
      of 1933, as amended (the "Securities Act").
(4)   If the Registrant  elects to offer to the public  fractional  interests in
      shares of the Preferred Stock registered  hereunder,  Depositary  Receipts
      will be distributed to those persons purchasing such fractional interests,
      and the shares of Preferred  Stock will be issued to the Depositary  under
      the Deposit Agreement.
(5)   Estimated solely for the purpose of calculating the registration fee.
(6)   Calculated  pursuant to Rule 457(o) of the rules and regulations under the
      Securities Act.

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

      The Registrant hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

================================================================================

<PAGE>

INFORMATION   CONTAINED  HEREIN  IS  SUBJECT  TO  COMPLETION  OR  AMENDMENT.   A
REGISTRATION  STATEMENT  RELATING  TO THESE  SECURITIES  HAS BEEN FILED WITH THE
SECURITIES  AND EXCHANGE  COMMISSION.  THESE  SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION  STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE  AN  OFFER  TO  SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN ANY STATE IN WHICH SUCH OFFER,  SOLICITATION  OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.

    PRELIMINARY PROSPECTUS ISSUED ____________, 1998 (Subject to Completion)

                                  $500,000,000
                               OMNICOM GROUP INC.
             COMMON STOCK, PREFERRED STOCK, DEPOSITARY SHARES, DEBT
                             SECURITIES AND WARRANTS

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

      Omnicom Group Inc. (the  "Company")  may offer and issue from time to time
(i) common stock,  par value $.50 per share ("Common  Stock"),  (ii) one or more
series of  preferred  stock,  par value  $1.00  per share  ("Preferred  Stock"),
interests  in  which  may  be  represented  by  depositary  shares  ("Depositary
Shares"),  (iii) one or more  series  of debt  securities  ("Debt  Securities"),
consisting   of   debentures,   notes  and/or  other   unsecured   evidences  of
indebtedness,   which  may  be  unsubordinated  ("Senior  Debt  Securities")  or
subordinated  ("Subordinated  Debt  Securities") to certain other obligations of
the Company,  and (iv) warrants to purchase Debt Securities,  Preferred Stock or
Common Stock ("Warrants",  and together with the Common Stock,  Preferred Stock,
Depositary  Shares and Debt Securities,  "Securities"),  at an aggregate initial
offering  price  not to  exceed  $500,000,000,  at  prices  and on  terms  to be
determined  at the  time of  sale.  Securities  may be  offered,  separately  or
together, in separate series, in amounts, at prices and on terms to be set forth
in  the  applicable  supplement  or  supplements  to  this  Prospectus  (each  a
"Prospectus Supplement").

      The  applicable  Prospectus  Supplement  will set forth with regard to the
particular  Securities in respect of which this  Prospectus is being  delivered,
the initial public offering price and the terms of the offering thereof, and (i)
in the case of Common Stock, the number of shares; (ii) in the case of Preferred
Stock,  the  serial   designation  and  the  number  of  shares,  any  dividend,
liquidation,  redemption,  conversion,  voting or other rights of such Preferred
Stock and  whether  interests  in such  Preferred  Stock  will be  evidenced  by
Depositary Shares and, if so, the identity of the Depositary (as defined herein)
and the fraction of a share of Preferred  Stock  represented by each  Depositary
Share;  (iii) in the case of Debt  Securities,  the title,  aggregate  principal
amount, denominations, maturity, rate of interest, if any (which may be fixed or
variable),  or method of calculation  thereof,  time of payment of any interest,
terms for  redemption at the option of the Company or the holder,  if any, terms
for sinking fund payments,  if any,  subordination  terms, if any, conversion or
exchange  rights,  if any,  and any  other  terms  and  conditions  of such Debt
Securities;  and (iv) in the case of Warrants,  the  duration,  offering  price,
exercise  price and  detachability  of such  Warrants,  and any other  terms and
conditions of such Warrants,  as well as a description  of the Debt  Securities,
Preferred  Stock or  Common  Stock  issuable  upon  the  exercise  thereof.  The
Prospectus  Supplement will contain information  concerning certain U.S. federal
income tax considerations, if applicable to the Securities offered.

      The Common Stock is listed on the New York Stock Exchange under the symbol
"OMC." The applicable  Prospectus  Supplement  will contain  information,  where
applicable,  as to any other listing on a securities  exchange of the Securities
covered by such Prospectus Supplement.

      Other than as described in the applicable Prospectus Supplement,  all Debt
Securities will be unsecured obligations of the Company. Senior Debt Securities,
when issued,  will rank on a parity with all other unsecured and  unsubordinated
indebtedness of the Company.  Subordinated Debt Securities, when issued, will be
subordinated as    

<PAGE>

described  herein  under  "DESCRIPTION  OF  DEBT   SECURITIES--SUBORDINATION  OF
SUBORDINATED DEBT SECURITIES."

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

      This  Prospectus  may not be used to consummate the sale of any Securities
unless accompanied by a Prospectus Supplement.

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

      THESE  SECURITIES  HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
SECURITIES AND EXCHANGE  COMMISSION OR ANY STATE  SECURITIES  COMMISSION  PASSED
UPON THE  ACCURACY OR ADEQUACY OF THIS  PROSPECTUS.  ANY  REPRESENTATION  TO THE
CONTRARY IS A CRIMINAL OFFENSE.

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

      The  Company  may sell  Securities  to or through  underwriters  acting as
principals for their own account or as agents, and also may sell such Securities
directly to other purchasers or through agents designated from time to time. The
applicable  Prospectus  Supplement  will set forth the initial  public  offering
price,  the names of any  underwriters  or  agents,  the  numbers  or  principal
amounts,  if any, to be  purchased by  underwriters,  the  compensation  of such
underwriters  and agents,  if any, and the net  proceeds to the Company.  If the
Company, directly or through agents, solicits offers to purchase the Securities,
the Company reserves the sole right to accept and,  together with its agents, to
reject in whole or in part any  proposed  purchase of  Securities.  See "PLAN OF
DISTRIBUTION".

___________ ___, 1998

                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

Available Information..........................................................3
Incorporation Of Certain Documents By Reference................................3
The Company....................................................................4
Use Of Proceeds................................................................5
Ratio Of Earnings To Fixed Charges.............................................5
General Description Of Offered Securities And Risk Factors.....................5
Description Of Debt Securities.................................................5
Description Of Preferred Stock................................................14
Description Of The Depositary Shares..........................................16
Description Of Warrants.......................................................18
Description Of Common Stock...................................................20
Plan Of Distribution..........................................................20
Experts.......................................................................22
Legal Matters.................................................................22


                                      -2-
<PAGE>

      NO  PERSON  IS  AUTHORIZED  TO  GIVE  ANY   INFORMATION  OR  TO  MAKE  ANY
REPRESENTATIONS, OTHER THAN THOSE CONTAINED OR INCORPORATED BY REFERENCE IN THIS
PROSPECTUS,  IN CONNECTION WITH THE OFFERING  CONTEMPLATED HEREBY, AND, IF GIVEN
OR MADE, SUCH INFORMATION OR  REPRESENTATIONS  MUST NOT BE RELIED UPON AS HAVING
BEEN AUTHORIZED BY THE COMPANY.  THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO
SELL  OR A  SOLICITATION  OF AN  OFFER  TO BUY ANY  SECURITIES  OTHER  THAN  THE
REGISTERED  SECURITIES TO WHICH IT RELATES.  THIS PROSPECTUS DOES NOT CONSTITUTE
AN OFFER TO SELL OR A  SOLICITATION  OF AN  OFFER TO BUY ANY  SECURITIES  IN ANY
JURISDICTION  TO ANY  PERSON  TO  WHOM IT IS  UNLAWFUL  TO MAKE  SUCH  OFFER  OR
SOLICITATION IN SUCH  JURISDICTION.  NEITHER THE DELIVERY OF THIS PROSPECTUS NOR
ANY SALE MADE HEREUNDER SHALL, UNDER ANY  CIRCUMSTANCES,  CREATE ANY IMPLICATION
THAT  THERE HAS BEEN NO  CHANGE IN THE  AFFAIRS  OF THE  COMPANY  SINCE THE DATE
HEREOF OR THAT THE INFORMATION  CONTAINED OR INCORPORATED BY REFERENCE HEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO ITS DATE.

                              AVAILABLE INFORMATION

      The Company has filed with the  Securities  and Exchange  Commission  (the
"Commission")  a Registration  Statement on Form S-3 under the Securities Act of
1933, as amended (the "Securities Act"), which relates to the Securities offered
hereby (the "Registration  Statement").  This Prospectus does not contain all of
the  information  contained in the  Registration  Statement and the exhibits and
schedules  thereto,  and reference is hereby made to the Registration  Statement
and to Exhibits thereto for further  information with respect to the Company and
the  Securities  offered  hereby.  Any statements  contained in this  Prospectus
concerning  the contents of any contract or other  document are not  necessarily
complete, and, in each instance,  reference is made to the copy of such document
filed as an exhibit to the  Registration  Statement or otherwise  filed with the
Commission. Each such statement is qualified in its entirety by such reference.

      The Company is subject to the informational requirements of the Securities
Exchange  Act of 1934,  as  amended  (the  "Exchange  Act"),  and in  accordance
therewith  files  reports,  proxy  statements  and  other  information  with the
Commission. Copies of such reports, proxy statements, the Registration Statement
and exhibits  thereto and other  information may be inspected  without charge at
the offices of the  Commission  at  Judiciary  Plaza,  450 Fifth  Street,  N.W.,
Washington,  D.C. 20549, and at the  Commission's  Regional Offices located at 7
World Trade Center,  13th floor,  New York, New York 10048; and Citicorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661, and copies of such
material may be obtained from the Pubic  Reference  Section of the Commission at
its Washington, D.C. or regional offices upon the payment of the fees prescribed
by the  Commission.  The  Commission  maintains  a World  Wide  Web  site on the
Internet  at   http://www.sec.gov   that  contains  reports,   proxy  and  other
information  regarding registrants that file electronically with the Commission,
including  the  Company.  In  addition,  reports,  proxy  statements  and  other
information concerning the Company may be inspected and copied at the offices of
the New York Stock Exchange, Inc., 20 Broad Street, New York, New York 10005.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

      The  documents  listed  below  have  been  filed by the  Company  with the
Commission and are incorporated herein by reference:

            (a) The  Company's  Annual  Report on Form  10-K for the year  ended
      December 31, 1996;

            (b) The Company's  unaudited  Quarterly Reports on Form 10-Q for the
      quarters ended March 31, 1997, June 30, 1997 and September 30, 1997;

            (c) The Company's Report on Form 8-K dated January 17, 1997 relating
      to the  issuance of its 4 1/4%  Convertible  Subordinated  Debentures  due
      2007;  and the  Company's  Report on Form 8-K dated  January  20, 1998 and
      relating to the issuance of its 2 1/4% Convertible Subordinated Debentures
      due 2013; and


                                      -3-
<PAGE>

            (d) The  description of the Company's  Common Stock contained in the
      Registration  Statement  filed  pursuant to Section 12 of the Exchange Act
      and any  amendment  or report  filed for the  purposes  of  updating  that
      description.

      All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the  Exchange  Act  subsequent  to the  date  hereof  and  prior to the
termination of the offering of the Securities shall be deemed to be incorporated
by reference into this Prospectus from the date of filing of such documents.

      Any  statement  contained  herein,  in any  Prospectus  Supplement or in a
document  incorporated  or deemed  incorporated  by reference  herein or therein
shall  be  deemed  modified  or  superseded  for  purposes  of the  Registration
Statement,  this Prospectus and such Prospectus  Supplement to the extent that a
statement contained herein, in any Prospectus Supplement, or in any subsequently
filed  document  that also is or is deemed  incorporated  by  reference  herein,
modifies  or  supersedes  such  statement.  Any such  statement  so  modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute  a  part  of  the  Registration  Statement,  this  Prospectus  or any
Prospectus Supplement.

      The Company will provide  without  charge to each person to whom a copy of
this  Prospectus  is  delivered,  upon the  written or oral  request of any such
person,  a  copy  of any or all of  the  documents  which  have  been  or may be
incorporated  into this  Prospectus  by reference  (other than  exhibits to such
documents).  Written or telephone requests for such copies should be directed to
Barry J. Wagner,  Secretary and General Counsel, Omnicom Group Inc., 437 Madison
Avenue, New York 10022; telephone number (212) 415-3600.

      CERTAIN PERSONS PARTICIPATING IN THE OFFERING OF THE SECURITIES MAY ENGAGE
IN TRANSACTIONS  THAT STABILIZE,  MAINTAIN OR OTHERWISE  AFFECT THE PRICE OF THE
SECURITIES  OR ANY  SECURITIES  THE  PRICES  OF WHICH  MAY BE USED TO  DETERMINE
PAYMENTS ON THE SECURITIES.  SPECIFICALLY,  THE AGENTS SPECIFIED IN THE RELEVANT
PROSPECTUS SUPPLEMENT OR PRICING SUPPLEMENT MAY OVERALLOT IN CONNECTION WITH THE
OFFERING,  AND MAY BID FOR, AND PURCHASE,  THE  SECURITIES OR ANY SECURITIES THE
PRICES OF WHICH MAY BE USED TO DETERMINE  PAYMENTS ON THE SECURITIES IN THE OPEN
MARKET.  FOR A DESCRIPTION OF THESE  ACTIVITIES,  SEE "PLAN OF  DISTRIBUTION" IN
THIS PROSPECTUS AND "PLAN OF  DISTRIBUTION"  OR  "UNDERWRITING"  IN THE RELEVANT
PROSPECTUS SUPPLEMENT AND PRICING SUPPLEMENT.

                                   THE COMPANY

      The Company through its wholly and partially owned companies  (hereinafter
sometimes collectively referred to as the "Omnicom Group"), operates advertising
agencies which plan, create, produce and place advertising in various media such
as television,  radio,  newspapers  and magazines.  The Omnicom Group offers its
clients such  additional  services as marketing  consultation,  consumer  market
research,  design and production of merchandising  and sales promotion  programs
and  materials,  direct  mail  advertising,  corporate  identification,   public
relations and interactive marketing.  The Omnicom Group offers these services to
clients worldwide on a local, national, pan-regional or global basis. Operations
cover the major  regions  of North  America,  the  United  Kingdom,  Continental
Europe, the Middle East, Latin America, the Far East and Australia.  In 1996 and
1995, 51% and 53%,  respectively,  of the Omnicom Group's billings came from its
non-U.S. operations.  According to the unaudited industry wide figures published
in 1997 in the trade journal,  Advertising  Age, the Omnicom Group was ranked as
the second largest advertising agency group worldwide.

      The Omnicom Group operates as three separate, independent agency networks:
the BBDO  Worldwide  Network,  the DDB  Needham  Worldwide  Network and the TBWA
International  Network.  The Omnicom  Group also  operates  several  independent
agencies,  including  Cline  Davis & Mann and  Goodby,  Silverstein  & Partners,
certain  marketing  service  and  specialty  advertising  companies  through its
Diversified Agency Services division and certain interactive marketing companies
through Communicade.


                                      -4-
<PAGE>

      A  two-for-one  stock  split in the form of a one  hundred  percent  stock
dividend on the Company's outstanding Common Stock was paid on December 29, 1997
to the shareholders of record on December 16, 1997.

      The principal  executive offices of the Company are located at 437 Madison
Avenue, New York New York 10022. Its telephone number is (212) 415-3600.

                                 USE OF PROCEEDS

      The Company currently intends to use the net proceeds from the sale of any
Securities for general  corporate  purposes,  which may include the reduction of
short-term  indebtedness,  the  repurchase of Common Stock,  investments  in, or
extensions of credit to, the Company's subsidiaries,  possible acquisitions, and
such other  purposes as may be stated in the applicable  Prospectus  Supplement.
Pending  such use, the net proceeds  may be  temporarily  invested.  The precise
amounts and timing of the  application  of proceeds will depend upon the funding
requirements of the Company and its subsidiaries at the time of issuance and the
availability  of other  funds.  Except  as may be  described  in the  applicable
Prospectus  Supplement,  specific  allocations  of the proceeds to such purposes
will not have been made at the date of such Prospectus Supplement.

      Based upon the financial  needs of the Company and its  subsidiaries,  the
Company may also  engage in other  financings  of a  character  and amount to be
determined as the need arises.

                       RATIO OF EARNINGS TO FIXED CHARGES

      The following  table sets forth the  Company's  ratio of earnings to fixed
charges on a historical basis for the periods indicated.

<TABLE>
<CAPTION>
                                                                                
                                                                                     Nine Months       Nine Months
                                           Year Ended December 31,                      Ended             Ended
                        --------------------------------------------------------    September 30,     September 30,
                          1992       1993       1994        1995         1996            1996             1997
                          ----       ----       ----        ----         ----            ----             ----
<S>                       <C>         <C>        <C>         <C>          <C>             <C>             <C> 
Ratio of earnings to
fixed charges.....        2.28        2.32       3.15        3.59         4.17            3.80            4.01
</TABLE>

      The ratio of  earnings to fixed  charges is  computed  by  dividing  fixed
charges into  earnings  before  income taxes plus fixed  charges.  Fixed charges
consist of  interest  expense  and that  portion of net  rental  expense  deemed
representative of the interest factor.

           GENERAL DESCRIPTION OF OFFERED SECURITIES AND RISK FACTORS

      The Company may offer shares of Common Stock, Preferred Stock,  Depositary
Shares,  Debt Securities or Warrants or any combination of the foregoing  either
individually  or as  units  consisting  of one or  more  securities  under  this
Prospectus.

      CERTAIN OF THE  SECURITIES TO BE OFFERED  HEREBY MAY INVOLVE A HIGH DEGREE
OF RISK. SUCH RISKS WILL BE SET FORTH IN THE PROSPECTUS  SUPPLEMENT  RELATING TO
SUCH OFFERED SECURITIES.

                         DESCRIPTION OF DEBT SECURITIES

      The Company may offer under this Prospectus up to  $500,000,000  aggregate
principal  amount of Debt  Securities,  or if Debt  Securities  are  issued at a
discount,  such principal  amount as may be sold for an initial public  offering
price  of up to  $500,000,000.  Unless  otherwise  specified  in the  applicable
Prospectus  Supplement,  the Debt  Securities will represent  direct,  unsecured
obligations of the Company.


                                      -5-
<PAGE>

      Subordinated  Debt  Securities  are to be issued under an  Indenture  (the
"Subordinated  Indenture"),  between the  Company  and the trustee  named in the
applicable  Prospective  Supplement as the trustee  therefor (the  "Subordinated
Trustee").  Senior Debt  Securities  are to be issued  under an  Indenture  (the
"Senior Indenture"), between the Company and the trustee named in the applicable
Prospectus  Supplement as the trustee therefor (the "Senior Trustee").  The form
of Subordinated  Indenture and the form of Senior  Indenture are exhibits to the
Registration  Statement of which this Prospectus is a part. The Senior Indenture
and the  Subordinated  Indenture are sometimes  referred to  collectively as the
"Indentures" and the Senior Trustee and the  Subordinated  Trustee are sometimes
referred to collectively as the "Trustees".

      The  terms  of the  Debt  Securities  will  include  those  stated  in the
Indentures and those made part of the  respective  Indenture by reference to the
Trust Indenture Act of 1939, as amended (the "TIA"), as in effect on the date of
such  Indenture.  The Debt  Securities  will be subject to all such  terms,  and
potential  purchasers of the Debt  Securities  are referred to the Indenture and
the TIA for a statement thereof.

      The  following   statements  relating  to  the  Debt  Securities  and  the
Indentures  are summaries and do not purport to be complete.  Such summaries may
make use of certain terms defined in the  Indentures  and are qualified in their
entirety by express reference to the Indentures. Certain other specific terms of
any series of Debt  Securities  will be described in the  applicable  Prospectus
Supplement.  To the  extent  that any  particular  terms of the Debt  Securities
described  in a  Prospectus  Supplement  differ from any of the terms  described
herein, then such terms described herein shall be deemed to have been superseded
by such Prospectus Supplement. As used in this "Description of Debt Securities,"
all references to the "Company" shall mean Omnicom Group Inc., excluding, unless
the context otherwise required or as expressly stated, its subsidiaries.

      The Company currently has outstanding (i) $218,500,000 principal amount of
4 1/4% Convertible  Subordinated  Debentures with a scheduled  maturity in 2007,
which are convertible into Common Stock at a conversion price of $31.50, subject
to adjustment in certain events (the "4 1/4%  Debentures") and (ii) $230,000,000
principal amount of 2 1/4% Convertible  Subordinated Debentures with a scheduled
maturity in 2013,  which are convertible into Common Stock at a conversion price
of $49.83,  subject to  adjustment in certain  events (the "2 1/4%  Debentures",
and,   together  with  the  4  1/4%  Debentures,   the  "Existing   Subordinated
Indebtedness").  The 4 1/4%  Debentures were issued in accordance with the terms
of an  Indenture  dated as of January 3, 1997  between the Company and The Chase
Manhattan Bank, as Trustee. The 2 1/4% Debentures were issued in accordance with
the terms of an  Indenture  dated as of January 6, 1998  between the Company and
The Chase Manhattan Bank, as Trustee. In connection with certain other borrowing
facilities  entered  into by the  Company and its  subsidiaries,  the Company is
subject to certain  restrictions  on the ratio of net cash flow to  consolidated
indebtedness, the ratio of total consolidated indebtedness to total consolidated
capitalization and on its ability to make investments in and loans to affiliates
and unconsolidated subsidiaries.

GENERAL

      The terms of each  series of Debt  Securities  will be  established  by or
pursuant to a resolution  of the Board of Directors of the Company and set forth
or  determined  in the  manner  provided  in an  Officers'  Certificate  or by a
supplemental  indenture.  The particular terms of each series of Debt Securities
will be described in a Prospectus  Supplement relating to such series (including
any pricing supplement thereto).

         The Debt  Securities  that may be offered under the  Indentures are not
limited in aggregate  principal amount. The Debt Securities may be issued in one
or more series with the same or various maturities,  at par, at a premium, or at
a  discount.   The  Prospectus  Supplement  (including  any  pricing  supplement
thereto),  will set forth the initial  offering price,  the aggregate  principal
amount and the following  terms of the Debt  Securities in respect of which this
Prospectus is delivered:

            (1) the title of such Debt Securities;

            (2)  whether  such Debt  Securities  are Senior Debt  Securities  or
      Subordinated Debt Securities or any combination thereof;


                                      -6-
<PAGE>

            (3) the price or prices  (expressed as a percentage of the aggregate
      principal amount thereof) at which the Debt Securities will be issued;

            (4) any  limit  on the  aggregate  principal  amount  of  such  Debt
      Securities;

            (5) the date or dates on which  principal  on such  Debt  Securities
      will be payable;

            (6) the rate or rates (which may be fixed or variable) per annum or,
      if applicable,  the method used to determine such rate or rates (including
      any commodity,  commodity index,  stock exchange index or financial index)
      at which such Debt  Securities  will bear  interest,  if any,  the date or
      dates from which such  interest,  if any, will commence and be payable and
      any regular record date for the interest  payable on the interest  payment
      date;

            (7) the place or places where  principal  of,  premium,  if any, and
      interest, if any, on such Debt Securities will be payable;

            (8) the period or periods within which, the price or prices at which
      and the terms and  conditions,  if any, upon which the Debt Securities may
      be redeemed, in whole or in part, at the option of the Company;

            (9) the obligation, if any, of the Company to redeem or purchase the
      Debt  Securities  in  whole or in part  pursuant  to any  sinking  fund or
      analogous provisions;

            (10) the  dates,  if any,  on which and the price or prices at which
      the Debt  Securities  will be  repurchased by the Company at the option of
      the  holders  thereof  and other  detailed  terms and  provisions  of such
      repurchase obligations;

            (11)  the  denominations  in  which  such  Debt  Securities  may  be
      issuable,  if other than denominations of $1,000 and any integral multiple
      thereof;

            (12) whether the Debt  Securities  are to be issuable in the form of
      Certificated  Debt Securities (as defined below) or Global Debt Securities
      (as defined below);

            (13) the portion of principal  amount of such Debt  Securities  that
      shall be payable upon  declaration  of  acceleration  of the maturity date
      thereof, if other than the principal amount thereof;

            (14) the provisions,  if any,  relating to any security provided for
      such Debt Securities;

            (15) any addition to or change in the covenants  described herein or
      in the Indentures  with respect to such Debt  Securities and any change in
      the  acceleration  provisions  described  herein or in the Indentures with
      respect to such Debt Securities;

            (16) any Events of Default with respect to the Debt  Securities,  if
      not otherwise set forth under " Events of Default";

            (17)  the  terms  and  conditions,  if  any,  upon  which  the  Debt
      Securities  shall be  exchanged  for or  converted  into  Common  Stock or
      Preferred Stock;

            (18)  the  terms  and  conditions,  if  any,  upon  which  the  Debt
      Securities and any guarantees  thereof shall be  subordinated  in right of
      payment to other indebtedness of the Company or any guarantor;

            (19) the form and terms of any Guarantee of the Debt Securities;

            (20) any other  terms of such Debt  Securities,  which may modify or
      delete  any  provision  of the  Indentures  insofar  as it applies to such
      series;

            (21) any  depositaries,  interest rate calculation  agents, or other
      agents with respect to the Debt Securities.

            (22)  whether  the  subordination  provisions  summarized  below  or
      different  subordination  provisions,  including a different definition of
      "Senior   Indebtedness"  will  apply  to  any  Debt  Securities  that  are
      Subordinated Debt Securities; and

            (23) any other terms of such Debt Securities.


                                      -7-
<PAGE>

      Debt  Securities may be issued at a substantial  discount below the stated
principal  amount and that provide for an amount less than the stated  principal
amount  thereof to be due and payable upon  declaration of  acceleration  of the
maturity   thereof   pursuant  to  the  terms  of  the   Indentures   ("Discount
Securities"). Federal income tax considerations and other special considerations
applicable to any such Discount  Securities  will be described in the applicable
Prospectus Supplement.

EXCHANGE AND/OR CONVERSION RIGHTS

      The terms,  if any, on which Debt  Securities of a series may be exchanged
for or  converted  into shares of Common  Stock or  Preferred  Stock will be set
forth in the Prospectus Supplement relating thereto.

TRANSFER AND EXCHANGE

      Each  Debt  Security  will be  represented  by either  one or more  global
securities  (each,  a  "Global  Debt  Security")  registered  in the name of The
Depository Trust Company, as Depository (the "Depository"),  or a nominee of the
Depository (each such Debt Security  represented by a Global Debt Security being
herein referred to as a "Book-Entry Debt Security"),  or a certificate issued in
definitive registered form (a "Certificated Debt Security"), as set forth in the
applicable  Prospectus  Supplement.  Except as set forth  under "-- Global  Debt
Securities and Book Entry System" below,  Book-Entry Debt Securities will not be
issuable in certificated form.

      Certificated   Debt  Securities.   Certificated  Debt  Securities  may  be
transferred  or  exchanged  at  the  Trustee's  office  or  paying  agencies  in
accordance with the terms of the respective Indenture. No service charge will be
made for any  transfer or  exchange of  Certificated  Debt  Securities,  but the
Company  may  require  payment  of a sum  sufficient  to cover  any tax or other
governmental charge payable in connection therewith.

      The transfer of Certificated  Debt Securities and the right to receive the
principal  of and premium,  if any,  and  interest,  on such  Certificated  Debt
Securities  may be effected  only by surrender of the  certificate  representing
such  Certificated  Debt Securities and either  reissuance by the Company or the
respective  Trustee of such certificate to the new holder or the issuance by the
Company or the Trustee of a new certificate to the new holder.

      Global Debt  Securities  and Book Entry System.  The  procedures  that the
Depository  has indicated it intends to follow with respect to  Book-Entry  Debt
Securities are set forth below.

      Ownership of beneficial  interests in Book-Entry  Debt  Securities will be
limited to persons that have accounts with the Depository for the related Global
Debt  Security  ("participants")  or  persons  that may hold  interests  through
participants.  Upon the issuance of a Global Debt Security,  the Depository will
credit,  on its book-entry  registration and transfer system,  the participants'
accounts with the respective principal amounts of the Book-Entry Debt Securities
represented   by  such  Global  Debt   Security   beneficially   owned  by  such
participants.  The accounts to be credited  shall be  designated by any dealers,
underwriters or agents participating in the distribution of such Book-Entry Debt
Securities.  Ownership of Book-Entry  Debt  Securities will be shown on, and the
transfer of such  ownership  interests  will be effected only  through,  records
maintained by the  Depository for the related Global Debt Security (with respect
to interests of participants)  and on the records of participants  (with respect
to interests of persons holding through  participants).  The laws of some states
may require that certain purchasers of securities take physical delivery of such
securities in definitive form. Such laws may impair the ability to own, transfer
or pledge beneficial interests in Book-Entry Debt Securities.

      So long as the Depository for a Global Debt Security,  or its nominee,  is
the  registered  owner of such  Global Debt  Security,  the  Depository  or such
nominee,  as the case may be, will be considered the sole owner or holder of the
Book-Entry  Debt  Securities  represented  by such Global Debt  Security for all
purposes under the Indentures.  Except as set forth below,  beneficial owners of
Book-Entry  Debt  Securities  will  not be  entitled  to  have  such  securities
registered in their names,  will not receive or be entitled to receive  physical
delivery of a certificate in definitive  form  representing  such securities and
will not be  considered  the owners or  holders  thereof  under the  Indentures.
Accordingly,  each person  beneficially  owning  Book-Entry Debt Securities must
rely on the  procedures 


                                      -8-
<PAGE>

of the  Depository  for the related  Global Debt Security and, if such person is
not a  participant,  on the  procedures  of the  participant  through which such
person  owns  its  interest,  to  exercise  any  rights  of a Holder  under  the
Indentures.

      The Company understands,  however,  that under existing industry practice,
the Depository will authorize the persons on whose behalf it holds a Global Debt
Security  to  exercise  certain  rights of holders of Debt  Securities,  and the
Indentures  provide that the Company,  the Guarantors,  if any, the Trustees and
their respective  agents will treat as the holder of a Debt Security the persons
specified in a written  statement of the Depository  with respect to such Global
Debt Security for purposes of obtaining  any consents or directions  required to
be given by holders of the Debt Securities pursuant to the Indentures.

      Payments of principal of and premium,  if any, and interest on  Book-Entry
Debt Securities  will be made to the Depository or its nominee,  as the case may
be, as the registered  holder of the related  Global Debt Security.  None of the
Company, the Guarantors,  if any, the Trustees or any other agent of the Company
or agent of the  Trustees  will have any  responsibility  or  liability  for any
aspect of the  records  relating to or  payments  made on account of  beneficial
ownership interests in such Global Debt Security or for maintaining, supervising
or reviewing any records relating to such beneficial ownership interests.

      The Company  expects that the  Depository,  upon receipt of any payment of
principal of, premium,  if any, or interest,  if any, on a Global Debt Security,
will  immediately  credit  participants'   accounts  with  payments  in  amounts
proportionate  to the respective  amounts of Book-Entry  Debt Securities held by
each such  participant as shown on the records of such  Depository.  The Company
also expects that payments by participants to owners of beneficial  interests in
Book-Entry Debt Securities  held through such  participants  will be governed by
standing customer instructions and customary practices,  as is now the case with
the  securities  held for the accounts of customers in bearer form or registered
in "street name," and will be the responsibility of such participants.

      If the  Depository  is at any time  unwilling  or  unable to  continue  as
Depository or ceases to be a clearing agency  registered under the Exchange Act,
and a successor  Depository  registered as a clearing  agency under the Exchange
Act is not  appointed  by the Company  within 90 days,  the  Company  will issue
Certificated  Debt  Securities  in exchange  for each Global Debt  Security.  In
addition,  the Company may at any time and in its sole discretion  determine not
to have the Book-Entry Debt Securities of any series  represented by one or more
Global  Debt  Securities  and,  in such  event,  will  issue  Certificated  Debt
Securities  in exchange for the Global Debt  Securities  of such series.  Global
Debt Securities will also be exchangeable by the holders for  Certificated  Debt
Securities if an Event of Default with respect to the Book-Entry Debt Securities
represented by such Global Debt  Securities has occurred and is continuing.  Any
Certificated  Debt Securities issued in exchange for a Global Debt Security will
be  registered  in such  name or  names as the  Depository  shall  instruct  the
respective  Trustee.  It is expected that such  instructions  will be based upon
directions  received  by  the  Depository  from  participants  with  respect  to
ownership of Book-Entry Debt Securities relating to such Global Debt Security.

      The foregoing  information  in this section  concerning the Depository and
the  Depository's  book-entry  system has been obtained from sources the Company
believes  to be  reliable,  but the  Company  takes  no  responsibility  for the
accuracy thereof.

SUBORDINATION OF SUBORDINATED DEBT SECURITIES

      The  obligations  of the  Company  to make any  payment  on account of the
principal of or premium, if any, or interest on any Subordinated Debt Securities
will, to the extent set forth in the Subordinated  Indenture, be subordinate and
junior in right of payment to all Senior  Indebtedness (as defined below) of the
Company.  During the  continuance  beyond  any  applicable  grace  period of any
default in the payment of principal,  premium, interest or any other payment due
on any Senior  Indebtedness,  no payment of principal of, or premium, if any, or
interest on the Subordinated  Debt Securities  shall be made by the Company.  In
addition,  upon any  distribution of assets of the Company upon any dissolution,
winding up, liquidation or  reorganization,  the payment of the principal of, or
premium,  if any,  and interest on the  Subordinated  Debt  Securities  is to be
subordinated  to the extent provided in the  Subordinated  Indenture in right of
payment to the prior  payment in full of all Senior  Indebtedness.  By reason of
such  subordination  provisions,  in the  event  of the  Company's  dissolution,
holders of Senior  Indebtedness  may 


                                      -9-
<PAGE>

receive more, ratably,  and holders of the Debentures may receive less, ratably,
than the other creditors of the Company. Such subordination will not prevent the
occurrence of any Event of Default under the Indenture.

      Unless  otherwise  specified  in  the  applicable  Prospectus  Supplement,
"Senior Indebtedness" of the Company means the principal of and premium, if any,
and  interest on, and any other  payment due  pursuant to any of the  following,
whether  outstanding  on the date of the  Indentures or  thereafter  incurred or
created:

            (a) all  indebtedness  of the Company for money borrowed  (including
      any indebtedness secured by a mortgage or other lien which is (i) given to
      secure all or part of the  purchase  price of  property  subject  thereto,
      whether  given to the  vendor  of such  property  or to  another,  or (ii)
      existing on property at the time of acquisition thereof);

            (b) all indebtedness of the Company evidenced by notes,  debentures,
      bonds or other securities sold by the Company for money;

            (c) all lease  obligations  of the Company which are  capitalized on
      the books of the Company in accordance with generally accepted  accounting
      principles;

            (d) all  indebtedness  of others of the kinds described in either of
      the preceding clauses (a) or (b) or all lease obligations of others of the
      kind described in the preceding clause (c) assumed by or guaranteed in any
      manner by the Company or in effect  guaranteed  by the Company  through an
      agreement to purchase, contingent or otherwise; and

            (e) all renewals,  extensions or refundings of  indebtedness  of the
      kinds  described in any of the  preceding  clauses (a), (b) or (d) and all
      renewals or extensions  of leases of the kinds  described in either of the
      preceding clauses (c) or (d);

unless, in the case of any particular indebtedness, lease, renewal, extension or
refunding,  the  instrument  or lease  creating  or  evidencing  the same or the
assumption or guarantee of the same expressly  provides that such  indebtedness,
lease,  renewal,  extension or refunding is not superior in right of payment to,
or is pari passu  with,  the Debt  Securities.  Notwithstanding  the  foregoing,
Senior  Indebtedness  shall not include (i) any indebtedness or lease obligation
of any kind of the Company to any  subsidiary of the Company,  a majority of the
voting  stock  of  which is owned  by the  Company,  (ii) the  Company's  4 1/4%
Convertible  Subordinated  Debentures  due 2007 and (iii) the  Company's  2 1/4%
Convertible Subordinated Debentures due 2013.

      As  of  September  30,  1997,  the  Company  had  $482,884,000  of  Senior
Indebtedness  outstanding.  The amount of Senior  Indebtedness may change in the
future.  The  Indentures  contain no  limitations  on the  incurrence  of Senior
Indebtedness.

      The applicable  Prospectus Supplement may further describe the provisions,
if any,  applicable to the  subordination  of Subordinated  Debt Securities of a
particular series offered thereby.

COVENANTS

      Unless otherwise indicated in this Prospectus or a Prospectus  Supplement,
the Debt  Securities  will not have the benefit of any  covenants  that limit or
restrict the Company's  business or operations or the incurrence of indebtedness
of the Company.

      The applicable  Prospectus Supplement will describe any material covenants
in  respect of a series of Debt  Securities.  Other  than the  covenants  of the
Company  included in the  Indentures  as described  above or as described in the
applicable Prospectus Supplement,  there are no covenants or other provisions in
the Indentures providing for a put or increased interest or otherwise that would
afford  holders  of Debt  Securities  additional  protection  in the  event of a
recapitalization  transaction,  a change of control  of the  Company or a highly
leveraged transaction.


                                      -10-
<PAGE>

      Except as described in the applicable Prospectus Supplement,  there are no
covenants or other provisions in the Indentures providing for a put or increased
interest or otherwise  that would afford holders of Debt  Securities  additional
protection in the event of a recapitalization  transaction,  a change of control
of the Company or a highly leveraged transaction.

LIMITATION ON LIENS

      As long as any of the  Senior  Debt  Securities  are  outstanding  (unless
provision  has been made for the  payment  of all  amounts  due or to become due
thereon in  accordance  with the terms of the  Senior  Indenture),  the  Company
undertakes  not to grant any  security  interest in any or all of its present or
future assets to secure any other indebtedness of the Company for borrowed money
represented by notes, bonds, debentures or other debt securities, ranking senior
to or on a  parity  with  the  Senior  Debt  Securities,  issued  pursuant  to a
distribution  (i)  in an  underwritten  public  offering  registered  under  the
Securities Act or (ii) in an underwritten  offering to  institutional  investors
pursuant to Rule 144A without at the same time securing all  outstanding  Senior
Debt Securities equally and ratably with such securities.

CONSOLIDATION, MERGER AND SALE OF ASSETS

      The Company  may not  consolidate  with or merge with or into,  or convey,
transfer or lease all or  substantially  all of its properties and assets to any
Person  (a  "Successor   Person")  unless  (i)  the  Company  is  the  surviving
corporation  or  the  Successor   Person  (if  other  than  the  Company)  is  a
corporation,  partnership,  trust or other entity organized and validly existing
under the laws of the  United  States,  any state  thereof  or the  District  of
Columbia  and  expressly  assumes  the  Company's  obligations  under  the  Debt
Securities and under the Indentures,  (ii) immediately prior to and after giving
effect to the transaction, no Event of Default, and no event which, after notice
or lapse of time, or both, would become an Event of Default, shall have occurred
and be continuing  under the Indentures,  and (iii) certain other conditions are
met.

EVENTS OF DEFAULT

      Unless otherwise specified in the applicable  Prospectus  Supplement,  the
following will be Events of Default under each of the Indentures with respect to
Debt  Securities of any series:  (a) default in the payment of any interest upon
any  Debt  Security  of  that  series  when it  becomes  due  and  payable,  and
continuance of such default for a period of 30 days (unless the entire amount of
such payment is deposited by the Company with the Trustee or with a paying agent
prior to the  expiration of such period of 30 days);  (b) default in the payment
of  principal  of or premium,  if any, on any Debt  Security of that series when
such payment becomes due and payable, at maturity, upon redemption or otherwise;
(c)  default in the  deposit of any  sinking  fund  payment,  when and as due in
respect of any Debt Security of that series;  (d) default in the  performance or
breach of any other  covenant  or  warranty  of the  Company  in the  respective
Indenture  (other  than a covenant  or  warranty  that has been  included in the
Indenture  solely for the benefit of a series of Debt Securities other than that
series),  which default  continues uncured for a period of 45 days after written
notice to the  Company by the  Trustee or to the  Company and the Trustee by the
holders of at least 25% in aggregate  principal  amount of the outstanding  Debt
Securities of that series as provided in the  Indenture;  (e) certain  events of
bankruptcy,  insolvency  or  reorganization  with respect to the Company and the
Guarantors,  if any; and (f) any other Event of Default provided with respect to
Debt  Securities of that series that is described in the  Prospectus  Supplement
accompanying  this Prospectus.  No Event of Default with respect to a particular
series of Debt Securities (except as to certain events in bankruptcy, insolvency
or reorganization with respect to the Company) necessarily  constitutes an Event
of Default with respect to any other series of Debt  Securities.  The occurrence
of an Event of Default may  constitute  an event of default  under the Company's
bank  credit  agreements  in  existence  from  time to time.  In  addition,  the
occurrence of certain Events of Default or an acceleration  under the respective
Indenture may  constitute  an event of default under certain other  indebtedness
and/or preferred stock of the Company outstanding from time to time.

      If an Event of Default  with respect to Debt  Securities  of any series at
the time  outstanding  occurs  and is  continuing,  then in every  such case the
Trustee or the holders of at least 25% in  principal  amount of the  outstanding
Debt  Securities  of that series may, by a notice in writing to the Company (and
to the  Trustee  if  given  by 


                                      -11-
<PAGE>

the holders),  declare to be due and payable  immediately  the principal (or, if
the Debt Securities of that series are Discount Securities,  such portion of the
principal amount as may be specified in the terms of that series) of and accrued
and unpaid interest,  if any, on all Debt Securities of that series. In the case
of an Event of Default  resulting from certain events of bankruptcy,  insolvency
or  reorganization,  the principal (or such specified amount) of and accrued and
unpaid  interest,  if any, on all outstanding  Debt Securities  shall ipso facto
become and be immediately  due and payable  without any declaration or other act
on the part of the Trustee or any holder of outstanding Debt Securities.  At any
time after a declaration of acceleration  with respect to Debt Securities of any
series has been made,  but before a judgment  or decree for payment of the money
due has been  obtained by the  Trustee,  the holders of a majority in  principal
amount of the  outstanding  Debt Securities of that series may rescind and annul
such  acceleration  if all  Events of  Default,  other than the  non-payment  of
accelerated  principal and interest,  if any, with respect to Debt Securities of
that series, have been cured or waived as provided in the respective  Indenture.
For  information  as to waiver of defaults,  see the  discussion set forth below
under  "--  Modification  and  Waiver."  Reference  is  made  to the  Prospectus
Supplement  relating  to  any  series  of  Debt  Securities  that  are  Discount
Securities for the particular  provisions  relating to acceleration of a portion
of the principal  amount of such Discount  Securities  upon the occurrence of an
Event of Default.

      Each  Indenture  provides  that the Trustee will be under no obligation to
exercise any of its rights or powers  under the  Indenture at the request of any
holder of outstanding  Debt Securities,  unless the Trustee  receives  indemnity
satisfactory  to it against any loss,  liability or expense.  Subject to certain
rights of the  Trustee,  the  holders of a majority in  principal  amount of the
outstanding  Debt  Securities  of any series  shall have the right to direct the
time,  method and place of conducting any proceeding for any remedy available to
the Trustee or  exercising  any trust or power  conferred  on the  Trustee  with
respect to the Debt Securities of that series.

      No  holder  of any Debt  Security  of any  series  will  have any right to
institute any proceeding,  judicial or otherwise, with respect to the Indentures
or for the  appointment  of a receiver or trustee,  or for any remedy  under the
Indentures,  unless  such  holder  shall have  previously  given to the  Trustee
written notice of a continuing  Event of Default with respect to Debt Securities
of that series and unless  also the holders of at least a majority in  principal
amount of the outstanding Debt Securities of that series shall have made written
request,  and offered  reasonable  indemnity,  to the Trustee to institute  such
proceeding as trustee,  and the Trustee shall not have received from the holders
of a majority in principal  amount of the  outstanding  Debt  Securities of that
series a  direction  inconsistent  with such  request  and shall have  failed to
institute such proceeding  within 60 days.  Notwithstanding  the foregoing,  the
holder of any Debt  Security  will have an absolute and  unconditional  right to
receive  payment of the  principal of and  premium,  if any, and any interest on
such Debt Security on or after the due dates expressed in such Debt Security and
to institute suit for the enforcement of any such payment.

      Each Indenture  requires the Company to furnish to the Trustee a statement
as to compliance  with the Indenture.  Each Indenture  provides that the Trustee
may  withhold  notice to the  holders  of Debt  Securities  of any series of any
Default or Event of Default  (except in payment on any Debt  Securities  of such
series)  with  respect  to Debt  Securities  of such  series if it in good faith
determines  that  withholding  such notice is in the  interest of the holders of
such Debt Securities.

MODIFICATION AND WAIVER

      Modifications  to, and  amendments  of, the  Indentures may be made by the
Company and the respective Trustee with the consent of the holders of at least a
majority in principal  amount of the outstanding  Debt Securities of each series
under the respective  Indenture  affected by such  modifications  or amendments;
provided,  however,  that no such  modification  or amendment  may,  without the
consent of the holder of each outstanding Debt Security  affected  thereby:  (a)
reduce the amount of Debt Securities  whose holders must consent to an amendment
or waiver;  (b) reduce  the rate of or change the time for  payment of  interest
(including  default interest) on any Debt Security;  (c) reduce the principal of
or  premium,  if any, on or change the fixed  maturity  of any Debt  Security or
reduce the amount of, or postpone the date fixed for, the payment of any sinking
fund or analogous obligation with respect to any series of Debt Securities;  (d)
reduce the principal amount of Discount  Securities payable upon acceleration of
the maturity thereof; (e) waive a default in the payment of the principal of and
premium,  if any, or any interest on any Debt  Security  (except a rescission of
acceleration  of the Debt  Securities of any series by the holders of at least a


                                      -12-
<PAGE>

majority in aggregate  principal  amount of the then outstanding Debt Securities
of such  series and a waiver of the  payment  default  that  resulted  from such
acceleration);  (f) make the principal of or premium, if any, or any interest on
any Debt  Security  payable  in  currency  other  than  that  stated in the Debt
Security;  (g) make any change to certain provisions of the respective Indenture
protecting the right of each holder of Debt Securities to receive payment of the
principal of and premium, if any, and any interest on such Debt Securities on or
after the due date thereof or to institute suit for the  enforcement of any such
payment and to waivers or  amendments;  or (h) waive a  redemption  payment with
respect to any Debt Security.  The Company and the respective  Trustee may amend
each respective Indenture or the Debt Securities without notice to or consent of
any  holder  of  a  Debt  Security:  (i)  to  cure  any  ambiguity,   defect  or
inconsistency;  (ii)  to  comply  with  the  respective  Indenture's  provisions
regarding successor  corporations;  (iii) to comply with any requirements of the
Commission in connection  with the  qualification  of the  respective  Indenture
under the TIA;  (iv) to provide for Global Debt  Securities in addition to or in
place of Certificated Debt Securities; (v) to add to, change or eliminate any of
the provisions of the  respective  Indenture in respect of one or more series of
Debt  Securities,   provided,   however,  that  any  such  addition,  change  or
elimination  (A) shall  neither  (1) apply to any Debt  Security  of any  series
created prior to the execution of such  amendment and entitled to the benefit of
such provision,  nor (2) modify the rights of a holder of any such Debt Security
with respect to such provision, or (B) shall become effective only when there is
no  outstanding  Debt Security of any series created prior to such amendment and
entitled to the benefit of such provision; (vi) to make any change that does not
adversely  affect in any material  respect the interest of any holder;  (vii) to
secure  any Debt  Securities;  or  (viii) to  provide  for the  issuance  of and
establish  the form and  terms  and  conditions  of  additional  series  of Debt
Securities as permitted by the respective Indenture.

      The holders of at least a majority in principal  amount of the outstanding
Debt  Securities  of any  series  may,  on  behalf  of the  holders  of all Debt
Securities  of  that  series,  waive,  insofar  as  that  series  is  concerned,
compliance by the Company with provisions of the respective Indenture other than
certain specified  provisions.  The holders of a majority in principal amount of
the  outstanding  Debt  Securities of any series may on behalf of the holders of
all the Debt  Securities  of such  series  waive  any  past  default  under  the
respective Indenture with respect to such series and its consequences,  except a
default in the payment of the principal of and premium,  if any, or any interest
on any Debt  Security of that  series or in respect of a covenant  or  provision
which  cannot be modified  or amended  without the consent of the holder of each
outstanding Debt Security of such series affected;  provided,  however, that the
holders of a majority in aggregate principal amount of the then outstanding Debt
Securities of any series may rescind an  acceleration  of the Debt Securities of
any series,  including a wavier of the payment  default that  resulted from such
acceleration.

DEFEASANCE OF DEBT SECURITIES AND CERTAIN COVENANTS
IN CERTAIN CIRCUMSTANCES

      Legal Defeasance.  Each Indenture provides that, unless otherwise provided
by the terms of the  applicable  series of Debt  Securities,  the Company may be
discharged from any and all obligations in respect of the Debt Securities of any
series  (except for certain  obligations to register the transfer or exchange of
Debt  Securities  of such series,  to replace  stolen,  lost or  mutilated  Debt
Securities  of  such  series,  and  to  maintain  paying  agencies  and  certain
provisions  relating to the  treatment of funds held by paying  agents) upon the
deposit with the Trustee, in trust, of money and/or U.S. Government  Obligations
that,  through the  payment of  interest  and  principal  in respect  thereof in
accordance with their terms,  will provide money in an amount  sufficient in the
opinion of a nationally recognized firm of independent public accountants to pay
and  discharge  each  installment  of principal  (and  premium,  if any) and any
interest  on and any  mandatory  sinking  fund  payments  in respect of the Debt
Securities of such series on the stated  maturity of such payments in accordance
with the terms of the Indenture  and such Debt  Securities.  Such  discharge may
occur only if,  among other  things,  the Company  shall have  delivered  to the
Trustee an opinion of counsel  stating  that the Company has received  from,  or
there has been published by, the United States Internal Revenue Service a ruling
or, since the date of execution of the  respective  Indenture,  there has been a
change in the applicable United States federal income tax law, in either case to
the effect that,  and based thereon such opinion shall confirm that, the holders
of the Debt  Securities of such series will not recognize  income,  gain or loss
for United  States  federal  income tax  purposes  as a result of such  deposit,
defeasance and discharge and will be subject to United States federal income tax
on the same  amounts  and in the same manner and at the same times as would have
been the case if such deposit, defeasance and discharge had not occurred.


                                      -13-
<PAGE>

      Defeasance of Certain  Covenants.  Each Indenture  provides  that,  unless
otherwise  provided by the terms of the  applicable  series of Debt  Securities,
upon compliance with certain conditions, the Company may omit to comply with the
restrictive covenants,  if any, set forth in each respective Indenture,  as well
as any additional  covenants or other  provisions  which may be set forth in the
applicable Prospectus Supplement, and any omission to comply with such covenants
will not  constitute  a Default or an Event of Default  with respect to the Debt
Securities of such series ("covenant  defeasance").  The conditions include: the
deposit  with the trustee of money  and/or  U.S.  Government  Obligations  that,
through the payment of interest and  principal in respect  thereof in accordance
with their terms, will provide money in an amount sufficient in the opinion of a
nationally  recognized  firm  of  independent  public  accountants  to  pay  and
discharge each installment of principal of and premium, if any, and any interest
on and any mandatory  sinking fund payments in respect of the Debt Securities of
such series on the stated maturity of such payments in accordance with the terms
of the respective  Indenture and such Debt  Securities;  and the delivery to the
Trustee of an opinion  of  counsel  to the effect  that the  holders of the Debt
Securities  of such series will not  recognize  income,  gain or loss for United
States  federal  income tax  purposes  as a result of such  deposit  and related
covenant  defeasance  and will be subject to United States federal income tax on
the same amounts and in the same manner and at the same times as would have been
the case if such deposit and related covenant defeasance had not occurred.

REGARDING THE TRUSTEE

      The respective  Trustee with respect to any series of Debt Securities will
be identified in the  Prospectus  Supplement  relating to such Debt  Securities.
Each  Indenture and  provisions  of the TIA  incorporated  by reference  therein
contain certain limitations on the rights of the respective  Trustee,  should it
become a creditor of the Company,  to obtain payment of claims in certain cases,
or to realize on certain  property  received  in respect of any such  claim,  as
security or otherwise.  Each Trustee and its  affiliates may engage in, and will
be permitted to continue to engage in, other  transactions  with the Company and
its affiliates,  provided, however, that if it acquires any conflicting interest
(as defined in the TIA), it must eliminate such conflict or resign.

      The holders of a majority in principal amount of the then outstanding Debt
Securities  of any  series  will have the right to direct  the time,  method and
place of conducting any  proceeding  for exercising any remedy  available to the
respective Trustee.  The TIA and each Indenture provide that in case an Event of
Default  shall  occur  (and  be  continuing),  the  respective  Trustee  will be
required,  in the  exercise of its rights and powers,  to use the degree of care
and skill of a prudent  man in the conduct of his own  affairs.  Subject to such
provision,  each  Trustee  will be under no  obligation  to exercise  any of its
rights or powers  under the  respective  Indenture  at the request of any of the
holders of the Debt Securities  issued  thereunder,  unless they have offered to
the Trustee indemnity satisfactory to it.

                         DESCRIPTION OF PREFERRED STOCK

      Under the Certificate of Incorporation of the Company (the "Certificate of
Incorporation"),  up to 7,500,000 shares of Preferred Stock, par value $1.00 per
share (the "Preferred  Stock"),  may be issued from time to time, in one or more
series,  as  authorized  by the Board of  Directors,  without  the  approval  of
shareholders,   and  having  the  powers,   preferences  and  rights,   and  the
qualifications,  limitations or restrictions of the shares of the series.  Prior
to issuance of shares of each series,  the Board of Directors is required by the
Business  Corporation  Law of the State of New York (the "NYBCL") to cause to be
filed a Certificate  of Amendment  (the  "Certificate  of  Amendment")  with the
Secretary  of State of the State of New York,  fixing  for each such  series the
powers,   preferences  and  rights,  and  the  qualifications,   limitations  or
restrictions,  of the  shares  of the  series.  The  Board  of  Directors  could
authorize  the issuance of shares of Preferred  Stock with terms and  conditions
which  could have the effect of  discouraging  a takeover  or other  transaction
which  holders of some,  or a majority,  of such shares  might  believe to be in
their best interests or in which holders of some, or a majority,  of such shares
might  receive a premium  for their  shares over the  then-market  price of such
shares.

      Subject  to  limitations  prescribed  by the  NYBCL,  the  Certificate  of
Incorporation  and the Bylaws of the Company (the  "Bylaws"),  the resolution or
resolutions  of the Board of Directors  providing  for the division of Preferred
Stock into series within a class may include the following provisions:


                                      -14-
<PAGE>

            (1) The  distinctive  designation  of each  series  and the  maximum
      number of shares of each series  which may be issued,  which number may be
      increased  (except where  otherwise  provided by the Board of Directors in
      creating the series) or  decreased  (but not below the number of shares of
      the series then  outstanding)  from time to time by action of the Board of
      Directors;

            (2) Whether  the  holders of shares of each  series are  entitled to
      vote and if so the matters on which they are entitled to vote,  the number
      of votes to which the holder of each share is  entitled,  and  whether the
      shares of the series are to be voted separately or together with shares of
      other series;

            (3) The  dividends to which holders of shares of each series will be
      entitled; any restrictions,  conditions or limitations upon the payment of
      those  dividends;  whether  the  dividends  will  be  cumulative  and,  if
      cumulative, the date or dates from which the dividends will be cumulative;

            (4)  Whether  the  shares of one or more  series  will be subject to
      redemption,  and if so, whether  redemption will be mandatory or optional,
      and if  optional,  at whose  option,  the manner of  selecting  shares for
      redemption, the redemption price and the manner of redemption;

            (5) The  amount  payable  on  shares  of each  series  if there is a
      liquidation,  dissolution  or winding up of the Company,  which amount may
      vary at  different  dates and  depending  upon  whether  the  liquidation,
      dissolution or winding up is voluntary or involuntary;

            (6) The  obligation,  if any, of the Company to maintain a purchase,
      retirement or sinking fund for shares of each series;

            (7) Whether  the shares of one or more  series  will be  convertible
      into or  exchangeable  for, any other types of  securities,  either at the
      option  of the  holder  or of the  Company,  and if so,  the  terms of the
      conversions or exchanges;

            (8) whether  Depositary  Shares  representing  shares of one or more
      series will be offered and, if so, the fraction or multiple of such series
      represented by each Depositary Share; and

            (9) Any other  provisions  regarding  the  powers,  preferences  and
      rights,  and the  qualifications,  limitations  or  restrictions,  of each
      series which are not inconsistent with applicable law.

All shares of a series of Preferred  Stock will be identical  with each other in
all respects, except that shares of any one series issued at different times may
differ as to the dates from which dividends on those shares shall be cumulative.

      Reference is made to the  Prospectus  Supplement  relating to the class or
series of Preferred  Stock being offered for the specific terms thereof.  Unless
otherwise specified in the Prospectus Supplement, the Preferred Stock will, with
respect to dividend rights and rights upon  liquidation,  dissolution or winding
up of the Company  rank:  (i) senior to all classes or series of Common Stock of
the  Company,  and to all equity  securities  issued by the Company the terms of
which  specifically  provide  that such  equity  securities  rank junior to such
Preferred  Stock with  respect to dividend  rights or rights  upon  liquidation,
dissolution  or  winding  up of the  Company;  (ii) on a parity  with all equity
securities  issued  by the  Company  that do not rank  senior  or  junior to the
Preferred  Stock with  respect to dividend  rights or rights  upon  liquidation,
dissolution  or  winding  up of the  Company;  and (iii)  junior  to all  equity
securities issued by the Company the terms of which do not specifically  provide
that such equity  securities  rank on a parity  with or junior to the  Preferred
Stock with respect to dividend rights or rights upon liquidation, dissolution or
winding up of the  Company  (including  any entity with which the Company may be
merged or  consolidated or to which all or  substantially  all the assets of the
Company may be transferred or which  transfers all or  substantially  all of the
assets of the Company). As used for these purposes, the term "equity securities"
does not include convertible debt securities.


                                      -15-
<PAGE>

      See "DESCRIPTION OF COMMON STOCK" for certain considerations in connection
with the Company's present and future ability to pay dividends.

                      DESCRIPTION OF THE DEPOSITARY SHARES

      The Company may, at its option,  elect to offer  Depositary  Shares rather
than full shares of Preferred Stock. In the event such option is exercised, each
of the  Depositary  Shares will  represent  ownership of and  entitlement to all
rights  and  preferences  of a  fraction  of a share  of  Preferred  Stock  of a
specified  series  (including  dividend,   voting,  redemption  and  liquidation
rights). The applicable fraction will be specified in the Prospectus Supplement.
The shares of  Preferred  Stock  represented  by the  Depositary  Shares will be
deposited  with  a  Depositary  (the  "Depositary")   named  in  the  applicable
Prospectus  Supplement,  under a Deposit  Agreement  (the "Deposit  Agreement"),
among the Company,  the  Depositary and the holders of  certificates  evidencing
Depositary  Shares  ("Depositary  Receipts").  The  Depositary  Receipts will be
delivered to those persons  purchasing  Depositary  Shares in the offering.  The
Depositary will be the transfer agent,  registrar and dividend  disbursing agent
for the Depositary Shares.  holders of Depositary  Receipts agree to be bound by
the Deposit  Agreement,  which requires  holders to take certain actions such as
filing proof of residence and paying certain charges.

      The summary of terms of the Company's  Depositary Shares contained in this
Prospectus  does not purport to be complete and is subject to, and  qualified in
its  entirety  by,  the  provisions  of the  Deposit  Agreement,  the  Company's
Certificate of Incorporation and the Certificate of Amendment for the applicable
series of Preferred Stock.

DIVIDENDS

      The  Depositary   will   distribute  all  cash  dividends  or  other  cash
distributions  received in respect of the series of Preferred Stock  represented
by the  Depositary  Shares to the  record  holders  of  Depositary  Receipts  in
proportion  to the  number of  Depositary  Shares  owned by such  holders on the
relevant  record  date,  which will be the same date as the record date fixed by
the  Company for the  applicable  series of  Preferred  Stock.  The  Depositary,
however,  will  distribute  only  such  amount  as  can be  distributed  without
attributing to any Depositary  Share a fraction of one cent, and any balance not
so distributed  will be added to and treated as part of the next sum received by
the Depositary for  distribution  to record holders of Depositary  Receipts then
outstanding.

      In the event of a distribution  other than in cash,  the  Depositary  will
distribute  property received by it to the record holders of Depositary Receipts
entitled thereto, in proportion, as nearly as may be practicable,  to the number
of Depositary  Shares owned by such holders on the relevant record date,  unless
the Depositary  determines (after  consultation with the Company) that it is not
feasible to make such  distribution,  in which case the Depositary may (with the
approval of the  Company)  adopt any other  method for such  distribution  as it
deems  appropriate,  including the sale of such property and distribution of the
net proceeds from such sale to such holders.

LIQUIDATION PREFERENCE

      In the event of the liquidation,  dissolution or winding up of the affairs
of the Company,  whether  voluntary or involuntary,  each Depositary  Share will
represent,  and the owner  thereof  will be  entitled  to, the  fraction  of the
liquidation preference accorded each share of the applicable series of Preferred
Stock, as set forth in the Prospectus Supplement.

REDEMPTION

      If the series of Preferred Stock  represented by the applicable  series of
Depositary  Shares is redeemable,  such Depositary  Shares will be redeemed from
the proceeds received by the Depositary resulting from the redemption,  in whole
or in part,  of  Preferred  Stock held by the  Depositary.  Whenever the Company
redeems any Preferred Stock held by the  Depositary,  the Depositary will redeem
as of the same redemption date the number of Depositary Shares  representing the
Preferred  Stock so redeemed.  The Depositary will mail the notice of redemption
promptly  upon  receipt of such notice from the Company and not less than 35 nor
more than 60 days prior to the 


                                      -16-
<PAGE>

date fixed for redemption of the Preferred  Stock and the  Depositary  Shares to
the record holders of the Depositary Receipts.

VOTING

      Promptly upon receipt of notice of any meeting at which the holders of the
series of Preferred  Stock  represented by the  applicable  series of Depositary
Shares are entitled to vote, the Depositary will mail the information  contained
in such notice of meeting to the record holders of the Depositary Receipts as of
the record date for such meeting. Each such record holder of Depositary Receipts
will be entitled to instruct  the  Depositary  as to the  exercise of the voting
rights pertaining to the number of shares of Preferred Stock represented by such
record holder's  Depositary  Shares.  The Depositary  will endeavor,  insofar as
practicable,  to vote such Preferred Stock represented by such Depositary Shares
in  accordance  with such  instructions,  and the Company will agree to take all
action which may be deemed  necessary by the  Depositary  in order to enable the
Depositary  to do  so.  The  Depositary  will  abstain  from  voting  any of the
Preferred  Stock to the extent  that it does not receive  specific  instructions
from the holders of Depositary Receipts.

WITHDRAWAL OF PREFERRED STOCK

      Upon  surrender  of  Depositary  Receipts at the  principal  office of the
Depositary, upon payment of any unpaid amount due the Depositary, and subject to
the terms of the Deposit Agreement, the owner of the Depositary Shares evidenced
thereby is entitled to delivery of the number of whole shares of Preferred Stock
and all money and other property, if any, represented by such Depositary Shares.
Partial shares of Preferred Stock will not be issued. If the Depositary Receipts
delivered by the holder evidence a number of Depositary  Shares in excess of the
number of Depositary Shares representing the number of whole shares of Preferred
Stock to be withdrawn,  the  Depositary  will deliver to such holder at the same
time a new  Depositary  Receipt  evidencing  such  excess  number of  Depositary
Shares.  Holders  of  Preferred  Stock thus  withdrawn  will not  thereafter  be
entitled  to deposit  such  shares  under the  Deposit  Agreement  or to receive
Depositary Receipts evidencing Depositary Shares therefor.

AMENDMENT AND TERMINATION OF DEPOSIT AGREEMENT

      The form of Depositary  Receipt  evidencing the Depositary  Shares and any
provision  of the  Deposit  Agreement  may at any time and from  time to time be
amended by  agreement  between  the  Company and the  Depositary.  However,  any
amendment which materially and adversely alters the rights of the holders (other
than any change in fees) of Depositary  Shares will not be effective unless such
amendment has been approved by at least a majority of the Depositary Shares then
outstanding. No such amendment may impair the right, subject to the terms of the
Deposit  Agreement,  of any  owner of any  Depositary  Shares to  surrender  the
Depositary  Receipt  evidencing such Depositary  Shares with instructions to the
Depositary to deliver to the holder the Preferred  Stock and all money and other
property, if any, represented thereby,  except in order to comply with mandatory
provisions  of  applicable  law. The Deposit  Agreement may be terminated by the
Company or the Depositary  only if (i) all  outstanding  Depositary  Shares have
been  redeemed,  or (ii) there has been a final  distribution  in respect of the
Preferred  Stock in  connection  with any  dissolution  of the  Company and such
distribution has been made to all the owners of Depositary Shares.

CHARGES OF DEPOSITARY

      The Company will pay all transfer and other taxes and governmental charges
arising  solely from the existence of the depositary  arrangements.  The Company
will pay charges of the Depositary in connection with the initial deposit of the
Preferred  Stock  and  the  initial  issuance  of  the  Depositary  Shares,  any
redemption  of the Preferred  Stock and all  withdrawals  of Preferred  Stock by
owners of Depositary Shares.  holders of Depositary  Receipts will pay transfer,
income and other taxes and governmental charges and certain other charges as are
provided  in  the  Deposit  Agreement  to be  for  their  accounts.  In  certain
circumstances,  the Depositary  may refuse to transfer  Depositary  Shares,  may
withhold dividends and distributions and sell the Depositary Shares evidenced by
such Depositary Receipt if such charges are not paid.


                                      -17-
<PAGE>

MISCELLANEOUS

      The  Depositary  will  forward to the holders of  Depositary  Receipts all
reports  and  communications  from  the  Company  which  are  delivered  to  the
Depositary  and which the  Company is  required to furnish to the holders of the
Preferred Stock. In addition,  the Depositary will make available for inspection
by holders of Depositary Receipts at the principal office of the Depositary, and
at such other places as it may from time to time deem advisable, any reports and
communications received from the Company which are received by the Depositary as
the holder of Preferred Stock.

      Neither the Depositary  nor the Company  assumes any obligation or will be
subject to any  liability  under the Deposit  Agreement to holders of Depositary
Receipts  other than for its  negligence  or  willful  misconduct.  Neither  the
Depositary  nor the Company  will be liable if it is prevented or delayed by law
or any circumstance  beyond its control in performing its obligations  under the
Deposit  Agreement.  The obligations of the Company and the Depositary under the
Deposit  Agreement  will be limited to performance in good faith of their duties
thereunder,  and they will not be  obligated  to  prosecute  or defend any legal
proceeding  in  respect  of any  Depositary  Shares or  Preferred  Stock  unless
satisfactory indemnity is furnished.  The Company and the Depositary may rely on
written advice of counsel or accountants,  on information provided by holders of
Depositary  Receipts or other persons  believed in good faith to be competent to
give such  information and on documents  believed to be genuine and to have been
signed or presented by the proper party or parties.

RESIGNATION AND REMOVAL OF DEPOSITARY

      The  Depositary may resign at any time by delivering to the Company notice
of its election to do so, and the Company may at any time remove the Depositary,
any such  resignation  or  removal  to take  effect  upon the  appointment  of a
successor  Depositary  and its  acceptance of such  appointment.  Such successor
Depositary  must be  appointed  within 60 days after  delivery of the notice for
resignation  or removal and must be a bank or trust company having its principal
office in the United States of America and having a combined capital and surplus
of at least $150,000,000.

                             DESCRIPTION OF WARRANTS

      The Company may issue  warrants to  purchase  Debt  Securities  (the "Debt
Warrants"),  Preferred  Stock (the "Preferred  Stock  Warrants") or Common Stock
(the "Common Stock  Warrants" and,  collectively  with the Debt Warrants and the
Preferred Stock Warrants, the "Warrants").  Warrants may be issued independently
or together  with any  Securities  and may be attached to or separate  from such
Securities.  The  Warrants  are to be issued under  warrant  agreements  (each a
"Warrant  Agreement") to be entered into between the Company and a bank or trust
company,  as warrant agent (the "Warrant  Agent"),  all as shall be set forth in
the  Prospectus  Supplement  relating to the  Warrants  being  offered  pursuant
thereto.

DEBT WARRANTS

      The  applicable  Prospectus  Supplement  will  describe  the terms of Debt
Warrants offered thereby,  the Warrant Agreement  relating to such Debt Warrants
and the Debt Warrant certificates representing such Debt Warrants, including the
following:

            (1) the title of such Debt Warrants;

            (2) the aggregate number of such Debt Warrants;

            (3) the price or prices at which such Debt Warrants will be issued;

            (4) the  designation,  aggregate  principal  amount and terms of the
      Debt Securities  purchasable upon exercise of such Debt Warrants,  and the
      procedures and conditions relating to the exercise of such Debt Warrants;


                                      -18-
<PAGE>

            (5) the  designation  and terms of any related Debt  Securities with
      which such Debt Warrants are issued,  and the number of such Debt Warrants
      issued with each such security;

            (6) the date,  if any, on and after which such Debt Warrants and the
      related Debt Securities will be separately transferable;

            (7)  the  principal  amount  of  Debt  Securities  purchasable  upon
      exercise  of each  Debt  Warrant,  and the price at which  such  principal
      amount of Debt Securities may be purchased upon such exercise;

            (8) the date on which  the right to  exercise  such  Warrants  shall
      commence, and the date on which such right shall expire;

            (9) the maximum or minimum number of such Debt Warrants which may be
      exercised at any time;

            (10) a discussion of the material  United States  federal income tax
      considerations applicable to the exercise of such Debt Warrants; and

            (11) any other terms of such Debt Warrants and terms, procedures and
      limitations relating to the exercise of such Debt Warrants.

      Debt  Warrant  certificates  will be  exchangeable  for new  Debt  Warrant
certificates of different  denominations,  and Debt Warrants may be exercised at
the corporate trust office of the Warrant Agent or any other office indicated in
the  applicable  Prospectus  Supplement.  Prior to the  exercise  of their  Debt
Warrants, holders of Debt Warrants will not have any of the rights of holders of
the  securities  purchasable  upon such  exercise  and will not be  entitled  to
payments of principal of (or premium,  if any) or any interest on the securities
purchasable upon such exercise.

PREFERRED STOCK WARRANTS AND COMMON STOCK WARRANTS

      The applicable  Prospectus Supplement will describe the following terms of
Preferred  Stock  Warrants  or Common  Stock  Warrants  in respect of which this
Prospectus is being delivered:

            (1) the title of such Warrants;

            (2) the securities for which such Warrants are exercisable;

            (3) the price or prices at which such Warrants will be issued;

            (4) the number of such Warrants  issued with each share of Preferred
      Stock or Common Stock;

            (5) any  provisions for adjustment of the number or amount of shares
      of  Preferred  Stock or Common  Stock  receivable  upon  exercise  of such
      Warrants or the exercise price of such Warrants;

            (6) if applicable, the date on and after which such Warrants and the
      related Preferred Stock or Common Stock will be separately transferable;

            (7) if  applicable,  a  discussion  of the  material  United  States
      federal  income tax  considerations  applicable  to the  exercise  of such
      Warrants;

            (8) any other terms of such Warrants,  including  terms,  procedures
      and limitations relating to the exchange and exercise of such Warrants;

            (9) the date on which  the right to  exercise  such  Warrants  shall
      commence,  and the date on which such  right  shall  expire;  and 

            (10) the  maximum or minimum  number of such  Warrants  which may be
      exercised at any time.

EXERCISE OF WARRANTS

      Each Warrant will entitle the holder of Warrants to purchase for cash such
principal amount of Debt Securities or shares of Preferred Stock or Common Stock
at such exercise price as shall in each case be set forth in, 


                                      -19-
<PAGE>

or be  determinable as set forth in, the Prospectus  Supplement  relating to the
Warrants offered thereby.  Warrants may be exercised at any time up to the close
of  business  on the  expiration  date set  forth in the  Prospectus  Supplement
relating to the  Warrants  offered  thereby.  After the close of business on the
expiration date, unexercised Warrants will become void.

      Warrants  may be  exercised  as set  forth  in the  Prospectus  Supplement
relating  to the  Warrants  offered  thereby.  Upon  receipt of payment  and the
Warrant certificate  properly completed and duly executed at the corporate trust
office of the Warrant  Agent or any other  office  indicated  in the  Prospectus
Supplement,  the  Company  will,  as  soon  as  practicable,  forward  the  Debt
Securities or shares of Preferred  Stock or Common Stock  purchasable  upon such
exercise.  If  less  than  all of  the  Warrants  represented  by  such  Warrant
certificate  are  exercised,  a new Warrant  certificate  will be issued for the
remaining Warrants.

                           DESCRIPTION OF COMMON STOCK

      The Company's  authorized  capital consists of 300,000,000 shares of $0.50
par value Common Stock,  of which  161,969,510  were  outstanding  on January 2,
1998, and 7,500,000 shares of $1.00 par value Preferred Stock,  none of which is
outstanding. The foregoing reflects the two-for-one stock split in the form of a
one hundred  percent stock  dividend on the Company's  outstanding  Common Stock
payable to shareholders of record on December 16, 1997.

      Each share of Common Stock  entitles the holder thereof to one vote on all
matters  submitted  to a vote of  shareholders.  All shares of Common Stock have
equal rights and are entitled to such  dividends as may be declared by the Board
of Directors out of funds legally  available  therefor and to share ratably upon
liquidation in the assets available for distribution to shareholders. The Common
Stock is not subject to call or  assessment,  has no  preemptive  conversion  or
cumulative  voting  rights  and is not  subject  to  redemption.  The  Company's
shareholders elect a classified board of directors and may not remove a director
except by an affirmative two-thirds vote of all outstanding shares. A two-thirds
vote is also  required for the  Company's  shareholders  to amend the  Company's
Bylaws or certain provisions of its Certificate of Incorporation,  and to change
the number of directors comprising the full board.

      The  Company  is not aware of any  restrictions  on its  present or future
ability  to pay  dividends.  However,  as  indicated  in  "DESCRIPTION  OF  DEBT
SECURITIES," in connection with certain borrowing facilities entered into by the
Company and its subsidiaries,  the Company is subject to certain restrictions on
the  ratio of net cash  flow to  consolidated  indebtedness,  the ratio of total
consolidated  indebtedness  to  total  consolidated  capitalization  and  on its
ability  to make  investments  in and  loans to  affiliates  and  unconsolidated
subsidiaries.

      ChaseMellon Shareholder Services, 450 West 33rd Street, New York, New York
10001 is the transfer agent and the registrar of the Common Stock.

      The Company mails to its shareholders  annual reports  containing  audited
financial statements.

                              PLAN OF DISTRIBUTION

      The  Company  may  sell  Securities  to  or  through  underwriters  to  be
designated  from time to time,  and also may sell  Securities  directly to other
purchasers or through  agents.  The  distribution  of Securities may be effected
from time to time in one or more transactions at a fixed price or prices,  which
may be changed,  or at market  prices  prevailing at the time of sale, at prices
related to such prevailing market prices or at negotiated  prices.  Sales of the
Common Stock may also be effected from time to time in one or more  transactions
on the New York Stock Exchange.

      The  Securities  will be new  issues of  securities  with,  other than the
Common  Stock,  no  established  trading  market.  It  has  not  presently  been
established  whether the  underwriters,  if any, of such  Securities will make a
market in such  Securities.  If a market in such  Securities is made by any such
underwriters, such market making may be 


                                      -20-
<PAGE>

discontinued  at any time without  notice.  No assurance  can be given as to the
liquidity of the trading market for such Securities.

      In order to facilitate the offering of the  Securities,  the  underwriters
may engage in  transactions  that  stabilize,  maintain or otherwise  affect the
price of the Securities or any other  securities the prices of which may be used
to determine  payments on such  Securities.  Specifically,  the underwriters may
overallot in  connection  with the  offering,  creating a short  position in the
Securities for their own accounts.  In addition,  to cover  overallotments or to
stabilize  the price of the  Securities  or of any such  other  securities,  the
underwriters  may bid for,  and  purchase,  the  Securities  or any  such  other
securities  in the open  market.  Finally,  in any  offering  of the  Securities
through a syndicate of  underwriters,  the  underwriting  syndicate  may reclaim
selling  concessions  allowed to an underwriter or a dealer for distributing the
Securities in the offering if the syndicate repurchases  previously  distributed
Securities in transactions to cover syndicate short positions,  in stabilization
transactions or otherwise. Any of these activities may stabilize or maintain the
market price of the Securities above independent market levels. The underwriters
are not  required  to  engage  in  these  activities,  and may end any of  these
activities at any time.

      In  connection  with  the sale of  Securities,  underwriters  may  receive
compensation from the Company or from purchasers of Securities for whom they may
act as agents in the form of discounts, concessions or commissions. Underwriters
may sell  Securities  to or  through  dealers,  and  such  dealers  may  receive
compensation  in the form of  discounts,  concessions  or  commissions  from the
underwriters  and/or  commissions  from the  purchasers for whom they may act as
agents. Underwriters, dealers and agents that participate in the distribution of
Securities  may be deemed to be  underwriters,  and any discounts or commissions
received by them from the Company and any profit on the resale of  Securities by
them may be deemed underwriting discounts and commissions,  under the Securities
Act. Any such underwriter or agent will be identified, and any such compensation
received  from the  Company  will be  described,  in the  applicable  Prospectus
Supplement.

      Unless otherwise indicated in the applicable  Prospectus  Supplement,  the
obligations of any such  underwriters to purchase  Securities will be subject to
certain  conditions  precedent,  and each of the underwriters  with respect to a
sale of  Securities  will be obligated to purchase all of its  Securities if any
are  purchased.   Unless  otherwise  indicated  in  the  applicable   Prospectus
Supplement,  any such agent  involved in the offer and sale of the Securities in
respect of which this  Prospectus is being  delivered  will be acting on a "best
efforts" basis for the period of its appointment.

      If any  underwriters are utilized in the sale of the Securities in respect
of  which  this  Prospectus  is  delivered,  the  Company  will  enter  into  an
underwriting  agreement with such  underwriters  at the time of sale to them and
the names of the underwriters and the terms of the transaction will be set forth
in the Prospectus  Supplement,  which will be used by the  underwriters  to make
resales of the  Securities  in respect of which this  Prospectus is delivered to
the public.  The underwriters may be entitled,  under the relevant  underwriting
agreement,  to  indemnification  by the  Company  against  certain  liabilities,
including  liabilities under the Securities Act, and may be customers of, engage
in transactions  with or perform services for the Company in the ordinary course
of business.

      Under  agreements  that may be entered into by the Company,  underwriters,
agents and their  controlling  persons who  participate in the  distribution  of
Securities may be entitled to  indemnification  by the Company  against  certain
liabilities, including liabilities under the Securities Act.

      If so indicated in the applicable Prospectus Supplement,  the Company will
authorize  dealers or other persons  acting as the  Company's  agents to solicit
offers by certain  institutions  to  purchase  any  Securities  from the Company
pursuant to  contracts  providing  for payment  and  delivery on a future  date.
Institutions  with which  such  contracts  may be made  include  commercial  and
savings  banks,  insurance  companies,   pension  funds,  investment  companies,
educational  and  charitable  institutions  and  others,  but in all cases  such
institutions  must be approved by the Company.  The obligations of any purchaser
under any such contract  will be subject to the  condition  that the purchase of
any Securities will not at the time of delivery be prohibited  under the laws of
the  jurisdiction to which such purchaser is subject.  The underwriters and such
other  agents  will not have any  responsibility  in respect of the  validity or
performance of such contracts.


                                      -21-
<PAGE>

      If the Company  offers and sells  Securities  directly  to a purchaser  or
purchasers in respect of which this Prospectus is delivered, purchasers involved
in the  reoffer  or resale of such  Securities,  if such  purchasers  in respect
thereof  may be  deemed  to be  underwriters  as  that  term is  defined  in the
Securities  Act, will be named and the terms of such reoffers or resales will be
set forth in the  applicable  Prospectus  Supplement.  Such  purchasers may then
reoffer and resell such  Securities to the public or otherwise at varying prices
to be  determined  by such  purchasers  at the time of  resale  or as  otherwise
described in the  applicable  Prospectus  Supplement.  Purchasers  of Securities
directly from the Company may be entitled under  agreements  that they may enter
into  with  the  Company  to  indemnification  by the  Company  against  certain
liabilities,  including  liabilities under the Securities Act, and may engage in
transactions  with or perform services for the Company in the ordinary course of
their business or otherwise.

      Morgan Stanley & Co. Incorporated may act as underwriter,  dealer or agent
in  connection  with the sale of  Securities.  Underwriters  or agents and their
associates  may  be  customers  of  (including   borrowers   from),   engage  in
transactions   with,   and/or   perform   services  for,  the  Company  and  its
subsidiaries, or either Trustee, in the ordinary course of business.

                                     EXPERTS

      The consolidated financial statements and the financial statement schedule
of the Company and its subsidiaries incorporated by reference in this prospectus
and elsewhere in the registration statement have been audited by Arthur Andersen
LLP, independent public accountants,  as indicated in their reports with respect
thereto,  and are included herein in reliance upon the authority of said firm as
experts in accounting and auditing in giving said reports.

                                  LEGAL MATTERS

      Certain legal matters in  connection  with the legality of the  securities
offered  hereby will be passed upon for the Company by Donovan  Leisure Newton &
Irvine LLP, 30 Rockefeller Plaza, New York, New York 10112.


                                      -22-
<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

      Expenses  payable in connection  with the  distribution  of the securities
being registered  (estimated except for the registration fee), all of which will
be borne by the Registrant, are as follows:

        Registration Fee...............................  $147,500
        Trustee's Fees and Expenses....................  $         *
                                                          ---------
        Printing and Engraving Fees....................  $         *
                                                          ---------
        Legal Fees and Expenses........................  $         *
                                                          ---------
        Blue Sky Fees and Expenses.....................  $         *
                                                          ---------
        Accounting Fees and Expenses...................  $         *
                                                          ---------
        Warrant Agent's Fees and Expenses..............  $         *
                                                          ---------
        Transfer Agent's and Registration Fees
          and Expenses.................................  $         *
                                                          ---------
        Rating Agency Fees.............................  $         *
                                                          ---------
        Miscellaneous Expenses.........................  $         *
                                                         ----------
                                                         $
                                                         ==========
                                                                    
- -------------
*  To be filed by amendment (estimated).

Item l5. Indemnification of Directors and Officers.

      The  Registrant's   Certificate  of  Incorporation  contains  a  provision
limiting the liability of directors (except for approving statutorily prohibited
dividends,  share  repurchases  or  redemptions,   distributions  of  assets  on
dissolution or loans to directors) to acts or omissions in bad faith,  involving
intentional  misconduct  or a knowing  violation  of the law,  or  resulting  in
personal gain to which the director was not legally  entitled.  The Registrant's
By-Laws  provide  that an officer or director  will be  indemnified  against any
costs or  liabilities,  including  attorneys fees and amounts paid in settlement
with the  consent of the  registrant  in  connection  with any claim,  action or
proceeding to the fullest extent permitted by the New York Business  Corporation
Law.

      Section  722(a) of the New York Business  Corporation  Law provides that a
corporation  may  indemnify  any officer or director,  made or  threatened to be
made,  a party to an action or  proceeding  other than one by or in the right of
the corporation, including an action by or on the right of any other corporation
or other enterprise,  which any director or officer of the corporation served in
any  capacity  at the request of the  corporation,  because he was a director or
officer of the corporation, or served such other corporation or other enterprise
in any  capacity,  against  judgments,  fines,  amounts paid in  settlement  and
reasonable expenses, including attorneys' fees actually and necessarily incurred
as a result  of such  action  or  proceeding,  or any  appeal  therein,  if such
director or officer  acted,  in good faith,  for a purpose  which he  reasonably
believed to be in, or in the case of service for any other  corporation or other
enterprise,  not  opposed  to, the best  interests  of the  corporation  and, in
criminal actions or proceedings, in addition, had no reasonable cause to believe
that his conduct was unlawful.

      Section  722(c) of the New York Business  Corporation  Law provides that a
corporation  may  indemnify  any officer or director  made,  or threatened to be
made,  a party to an action by or in the right of the  corporation  by reason of
the fact that he is or was a director  or officer of the  corporation,  or is or
was  serving at the request of the  corporation  as a director or officer of any
other corporation of any type or kind, or other enterprise, against amounts paid
in settlement and reasonable  expenses,  including  attorneys' fees actually and
necessarily incurred by him in connection with the defense or settlement of such
action,  or in connection  with an appeal  therein,  if such director or officer
acted, in good faith,  for a purpose which he reasonably  believed to be in, or,
in the case of service for another corporation or other enterprise,  not opposed
to, the best interests of the  corporation.  The corporation  may not,  however,
indemnify any officer or director pursuant to Section 722(c) in respect of (1) a
threatened  action,  or a 


                                      II-1
<PAGE>

pending  action  which is settled or  otherwise  disposed  of, or (2) any claim,
issue or matter as to which such person shall have been adjudged to be liable to
the  corporation,  unless  and only to the  extent  that the  court in which the
action  was  brought  or,  if no action  was  brought,  any  court of  competent
jurisdiction,  determines  upon  application,  that the  person  is  fairly  and
reasonably entitled to indemnity for such portion of the settlement and expenses
as the court deems proper.

      Section 723 of the New York  Business  Corporation  Law  provides  that an
officer or director  who has been  successful  on the merits or otherwise in the
defense of a civil or criminal  action of the character set forth in Section 722
is entitled to indemnification as permitted in such section.  Section 724 of the
New York Business  Corporation Law permits a court to award the  indemnification
required by Section 722.

      The Company has entered into  agreements  with its  directors to indemnify
them for  liabilities  or costs  arising out of any alleged or actual  breach of
duty, neglect, errors or omissions while serving as a director. The Company also
maintains and pays premiums for  directors'  and officers'  liability  insurance
policies.

      Item 16. Exhibits and Financial Statement Schedules.

  Exhibit
  Number    Description of Exhibit
  ------    ----------------------
  1.1       Form of Underwriting Agreement (for Debt Securities and Warrants).*
  1.2       Form of Underwriting Agreement (for Common Stock and 
            Preferred Stock).*
  4.1       Certificate of Incorporation (as amended on December 4, 1997 and as 
            restated for filing purposes).
  4.2       Bylaws (incorporated by reference to Omnicom Group Inc.'s Annual 
            Report on Form 10-K for the year ended December 31, 1987).
  4.3       Form of Certificate of Designation with Respect to Preferred Stock.*
  4.4       Form of Senior Indenture.
  4.5       Form of Senior Debt Security (included in Exhibit 4.4).
  4.6       Form of Subordinated Indenture.
  4.7       Form of Subordinated Debt Security (included in Exhibit 4.6).
  4.8       Form of Depositary Agreement.*
  4.9       Form of Stock Warrant Agreement, together with Form of Warrant.*
  4.10      Form of Debt Warrant Agreement, together with Form of Warrant.*
  5         Opinion of Donovan Leisure Newton & Irvine LLP as to the 
            legality of the shares of Common Stock registered hereunder.*
  12        Statement regarding computation of ratio of earnings to 
            fixed charges.
  23        Consent of Arthur Andersen LLP.


                                      II-2
<PAGE>

  23.4      Consent of Donovan Leisure Newton & Irvine LLP (included in 
            Exhibit Number 5).*
  24.1      Power of Attorney (included on Signature Page).
  25        Statement of Eligibility of Trustee on Form T-1.**

- -----------
* To be filed by  amendment  or by a report on Form 8-K  pursuant to Item 601 of
Regulation S-K under the Securities Act of 1933.

** To be filed separately pursuant to Trust Indenture Act Section 305(b)(2).

Item 17. Undertakings.

      (a) The undersigned Registrant hereby undertakes:

            (1) To file,  during any  period in which  offers or sales are being
      made, a post-effective amendment to this Registration Statement:

                  (i) To include any prospectus  required by Section 10(a)(3) of
            the Securities Act of 1933;

                  (ii) To reflect in the  prospectus any facts or events arising
            after the effective date of this Registration Statement (or the most
            recent post-effective  amendment thereof) which,  individually or in
            the aggregate, represent a fundamental change in the information set
            forth in this Registration Statement. Notwithstanding the foregoing,
            any  increase or decrease  in volume of  securities  offered (if the
            total dollar value of securities offered would not exceed that which
            was  registered)  and any deviation  from the low or high end of the
            estimated  maximum  offering  range may be  reflected in the form of
            prospectus filed with the Commission  pursuant to Rule 424(b) if, in
            the  aggregate,  the changes in volume and price  represent  no more
            than 20 percent change in the maximum  aggregate  offering price set
            forth  in  the  "Calculation  of  Registration  Fee"  table  in  the
            effective registration statement; and

                  (iii) To include any material  information with respect to the
            plan of distribution not previously  disclosed in this  Registration
            Statement  or any  material  change  to  such  information  in  this
            Registration Statement.

      Provided  however,  that paragraphs  (1)(i) and (1)(ii) shall not apply if
the information  required to be included in a post-effective  amendment by those
paragraphs is contained in periodic reports filed by the Registrant  pursuant to
Section  13 or Section  15(d) of the  Securities  Exchange  Act of 1934 that are
incorporated by reference in this Registration Statement.

            (2) That,  for the purpose of  determining  any liability  under the
      Securities Act of 1933, each such post-effective amendment shall be deemed
      to be a new  registration  statement  relating to the  securities  offered
      therein,  and the offering of such securities at that time shall be deemed
      to be the initial bona fide offering thereof.

            (3) To remove from registration by means of post-effective amendment
      to this  Registration  Statement any of the  securities  being  registered
      which remain unsold at the termination of the offering.

      (b) The undersigned  Registrant  further  undertakes that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 that is  incorporated  by  reference  in this  Registration
Statement  shall be deemed to be a new  registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

      (c)  Insofar  as  indemnification   for  liabilities   arising  under  the
Securities  Act of 1933 may be  permitted  to  directors,  officers  or  persons
controlling  the Registrant  pursuant to the provisions  described under Item 15
above, or otherwise,  the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such 


                                      II-3
<PAGE>

indemnification  is  against  public  policy  as  expressed  in the  Act and is,
therefore,  unenforceable. In the event that a claim for indemnification against
such liabilities  (other than the payment by the Registrant of expenses incurred
or paid by a director,  officer or  controlling  person of the Registrant in the
successful  defense of any  action,  suit or  proceeding)  is  asserted  by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

      (d) The undersigned  registrant  hereby  undertakes to file an application
for the  purpose of  determining  the  eligibility  of the  trustee to act under
subsection (a) of Section 310 of the Trust  Indenture Act in accordance with the
rules and regulations  prescribed by the Commission  under Section  305(b)(2) of
the Act.


                                      II-4
<PAGE>

                                   SIGNATURES

      Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of New York, State of New York on February 13, 1998.


                                             OMNICOM GROUP INC.
                                                 Registrant


                                             By: /s/ John D. Wren
                                                --------------------------------
                                                     John D. Wren
                                                     Chief Executive Officer

      KNOW ALL MEN BY THESE PRESENTS,  that each person whose signature  appears
below constitutes and appoints John Wren and Barry J. Wagner,  and each of them,
his true and lawful  attorney-in-fact  and agent, with full and several power of
substitution  and  resubstitution,  for him and in his name, place and stead, in
any and all  capacities,  to sign any or all  amendments,  to this  Registration
Statement,  and to file the same, with all exhibits thereto, and other documents
in connection therewith,  with the Securities and Exchange Commission,  granting
unto said  attorneys-in-fact  and  agents  full  power and  authority  to do and
perform each and every act and thing  requisite  and necessary to be done in and
about the premises,  as fully to all intents and purposes as they or he might or
could  do  in  person,   hereby   ratifying   and   confirming   all  that  said
attorneys-in-fact  and agents or any substitute or  substitutes  of either,  may
lawfully do or cause to be done by virtue hereof.

      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has been signed below by the  following  persons in the
following capacities.

             Signature                      Title                    Date

                                         Chief Executive       February 13, 1998
By: /s/ John D. Wren                  Officer and  Director 
    -------------------------------   (Principal Executive 
    John D. Wren                             Officer)
                                                     
                                         Chief Financial       February 13, 1998
By: /s/ Fred J. Meyer                   Officer (Principal 
    -------------------------------     Financial Officer)
    Fred J. Meyer             

                                          Controller           February 13, 1998
By: /s/ Jonathan E. Ramsden              (Principal
    -------------------------------    Accounting Officer)
    Jonathan E. Ramsden        


By: /s/ Bernard Brochand                    Director           February 13, 1998
    -------------------------------
    Bernard Brochand         


                                      II-5
<PAGE>

             Signature                       Title                   Date

By: /s/ Robert J. Callander                 Director           February 13, 1998
    --------------------------------
    Robert J. Callander       


By: /s/ James A. Cannon                     Director           February 13, 1998
    -------------------------------
    James A. Cannon          


By: /s/ Leonard S. Coleman, Jr.             Director           February 13, 1998
    --------------------------------
    Leonard S. Coleman, Jr.    


By: /s/ Bruce Crawford                      Director           February 13, 1998
    --------------------------------
    Bruce Crawford          


By: /s/ Susan S. Denison                    Director           February 13, 1998
    --------------------------------
    Susan S. Denison        


By: /s/ John R. Murphy                      Director           February 13, 1998
    -------------------------------
    John R. Murphy                     


By: /s/ John R. Purcell                     Director           February 13, 1998
    --------------------------------
    John R. Purcell                  


By: /s/ Keith L. Reinhard                   Director           February 13, 1998
    -------------------------------
    Keith L. Reinhard                               
                                                          
                                                          
By: /s/ Allen Rosenshine                    Director           February 13, 1998
    -------------------------------
    Allen Rosenshine                               
                                                          
                                                          
By: /s/ Gary L. Roubos                      Director           February 13, 1998
    -------------------------------
    Gary L. Roubos                                 
                                                          
                                                          
By: /s/ Quentin I. Smith, Jr.               Director           February 13, 1998
    -------------------------------
    Quentin I. Smith, Jr.                             
                                                          
                                                          
By: /s/ William G. Tragos                   Director           February 13, 1998
    -------------------------------
    William G. Tragos                               
                                                          
                                                          
By: /s/ Egon P.S. Zehnder                   Director           February 13, 1998
    -------------------------------
    Egon P.S. Zehnder                                


                                      II-6
<PAGE>

                                INDEX TO EXHIBITS

  Exhibit
  Number     Description of Exhibit
  ------     ----------------------
  1.1        Form of Underwriting Agreement (for Debt Securities and Warrants).*
  1.2        Form of Underwriting Agreement (for Common Stock and 
             Preferred Stock).*
  4.1        Certificate of Incorporation (as amended on December 4, 1997 and
             as restated for filing purposes).
  4.2        Bylaws (incorporated by reference to Omnicom Group Inc.'s Annual 
             Report on Form 10-K for the year ended December 31, 1987).
  4.3        Form of Certificate of Designation with Respect to 
             Preferred Stock.*
  4.4        Form of Senior Indenture.
  4.5        Form of Senior Debt Security (included in Exhibit 4.4).
  4.6        Form of Subordinated Indenture.
  4.7        Form of Subordinated Debt Security (included in Exhibit 4.6).
  4.8        Form of Depositary Agreement.*
  4.9        Form of Stock Warrant Agreement, together with Form of Warrant.*
  4.10       Form of Debt Warrant Agreement, together with Form of Warrant.*
  5          Opinion of Donovan Leisure Newton & Irvine LLP as to the legality 
             of the shares of Common Stock registered hereunder.*
  12         Statement regarding computation of ratio of earnings 
             to fixed charges.
  23         Consent of Arthur Andersen LLP.
  23.4       Consent of Donovan Leisure Newton & Irvine LLP (included in 
             Exhibit Number 5).*
  24.1       Power of Attorney (included on Signature Page).
  25         Statement of Eligibility of Trustee on Form T-1.**

- ----------------
* To be filed by  amendment  or by a report on Form 8-K  pursuant to Item 601 of
Regulation S-K under the Securities Act of 1933.

** To be filed separately pursuant to Trust Indenture Act Section 305(b)(2).


                                      II-7


                                                                     Exhibit 4.1

                          CERTIFICATE OF INCORPORATION
                                       OF
                               OMNICOM GROUP INC.
                  (AS RESTATED FOR FILING PURPOSES PURSUANT TO
                      ITEM 601(B)(3)(I) OF REGULATION S-K)

      FIRST: The name of the corporation is Omnicom Group Inc.

      SECOND:  The purposes for which the  corporation is formed is to engage in
any lawful act or activity for which corporations may be organized under the New
York Business  Corporation Law, provided that the corporation will not engage in
any act or activity  requiring  the  consent or approval of any state  official,
department,  board,  agency or other body without such consent or approval first
being obtained.

      THIRD:  The  office of the  corporation  in the State of New York shall be
located in the County of New York.

      FOURTH:  The total  number of shares of stock which the  corporation  will
have authority to issue is 307,500,000 shares. Of these,  300,000,000 shares are
classified as Common Stock,  par value $.50 per share,  and 7,500,000 shares are
classified as Preferred Stock, par value $1.00 per share.

      The Board of Directors is  authorized  to divide the  7,500,000  shares of
Preferred  Stock from time to time into one or more series,  and to determine or
change by resolution  for each series its  designation,  the number of shares of
the series and the  powers,  preferences  and  rights,  and the  qualifications,
limitations  or  restrictions  of the shares of the series.  The  resolution  or
resolutions  of the Board of Directors  providing  for the division of Preferred
Stock into series within a class may include the following provisions:

            (1) The  distinctive  designation  of each  series  and the  maximum
      number of shares of each series  which may be issued,  which number may be
      increased  (except where  otherwise  provided by the Board of Directors in
      creating the series) or  decreased  (but not below the number of shares of
      the series then  outstanding)  from time to time by action of the Board of
      Directors;

            (2) Whether the holders of the shares of each series are entitled to
      vote and,  if so,  the  matters on which they are  entitled  to vote,  the
      number of votes to which the holder of each share is entitled, and whether
      the shares of the  series  are to be voted  separately  or  together  with
      shares of the other series;

            (3) The  dividends to which holders of shares of each series will be
      entitled; any restrictions,  conditions or limitations upon the payment of
      those  dividends;  whether  the  dividends  will  be  cumulative  and,  if
      cumulative, the date or dates from which the dividends will be cumulative;

            (4)  Whether  the  shares of one or more  series  will be subject to
      redemption  and, if so, whether  redemption will be mandatory or optional,
      and if  optional,  at whose  option,  the manner of  selecting  shares for
      redemption, the redemption price and the manner of redemption;

            (5) The  amount  payable  on  shares  of each  series  if there is a
      liquidation,  dissolution or winding up of the  Corporation,  which amount
      may vary at different  dates and depending  upon whether the  liquidation,
      dissolution or winding up is voluntary or involuntary;

            (6) The  obligation,  if  any,  of the  Corporation  to  maintain  a
      purchase, retirement or sinking fund for shares of each series;

            (7) Whether  the shares of one or more  series  will be  convertible
      into, or  exchangeable  for, any other types of securities,  either at the
      option of the holder or of the  Corporation  and,  if so, the terms of the
      conversions or exchanges;


<PAGE>

            (8) Any other  provisions  regarding  the  powers,  preferences  and
      rights,  and the  qualifications,  limitations  or  restrictions,  of each
      series which are not inconsistent with applicable law.

      All  shares of a series of  Preferred  Stock will be  identical  with each
other in all respects,  except that shares of any one series issued at different
times may  differ as to the dates  from  which  dividends  on those  shares,  if
cumulative, shall cumulate."

      FIFTH:  No  holder of any of the  shares  of any class of the  corporation
shall be entitled as of right to subscribe for,  purchase,  or otherwise acquire
any shares of any class of the  corporation  which the  corporation  proposes to
issue or any rights or options which the  corporation  proposes to grant for the
purchase of shares of any class of the  corporation  or for the  purchase of any
shares,  bonds,  securities,   or  obligations  of  the  corporation  which  are
convertible  into or exchangeable  for, or which carry any rights,  to subscribe
for, purchase, or otherwise acquire shares of any class of the corporation;  and
any and all of such shares, bonds, securities or obligations of the corporation,
whether  now or  hereafter  authorized  or  created,  may be  issued,  or may be
reissued  or  transferred  if the same have been  reacquired  and have  treasury
status,  and any and all of such  rights and options may be granted by the Board
of Directors to such persons, firms, corporations and associations, and for such
lawful  consideration,  and on such  terms,  as the  Board of  Directors  in its
discretion may determine,  without first offering the same, or any part thereof,
to any said holder.  Without  limiting the  generality of the  foregoing  stated
denial of any and all preemptive rights, no holder of shares of any class of the
corporation  shall  have  any  preemptive  rights  in  respect  of the  matters,
proceedings,  or transactions  specified in subparagraphs (1) to (6), inclusive,
of paragraph (e) of Section 622 of the Business Corporation Law.

      SIXTH: The duration of the corporation shall be perpetual.

      SEVENTH:  The  Secretary  of  State  is  designated  as the  agent  of the
corporation  upon whom process against the  corporation  may be served,  and the
address to which the Secretary of State shall mail a copy of any process against
the corporation served upon him is: 909 Third Avenue, New York, N.Y. 10022.

      EIGHTH:  The  number of  directors  shall be fixed by the  By-Laws,  or by
action of the  shareholders or the Board of Directors under specific  provisions
of a By-Law  adopted by the  shareholders  entitled to vote in an  election  for
directors.  If the shareholders are empowered by the By-Laws or by law to change
the  number  of  directors  constituting  the  entire  Board of  Directors,  the
affirmative  vote of holders of  two-thirds  in voting power of the  outstanding
shares of stock of the  corporation  shall be required for the  shareholders  to
change the number of directors  constituting the entire Board of Directors.  The
directors  will be divided into three  classes,  all of which classes will be as
nearly equal in number as possible, and none of which classes will include fewer
than  three  directors.  The terms of office  of the  first  class of  directors
initially  classified  will expire at the 1987 annual  meeting of  shareholders,
that of the second  class  initially  classified  will expire at the 1988 annual
meeting of shareholders  and that of the third class  initially  classified will
expire at the 1989 annual  meeting of  shareholders.  At each annual  meeting of
shareholders after the initial classification,  directors to replace those whose
terms expire at an annual meeting will be elected to hold office until the third
succeeding annual meeting of shareholders. If after the directors are classified
the number of directors is changed (1) any newly  created  directorships  or any
decrease in  directorships  will be so apportioned  among the classes as to make
all the classes as nearly equal in number as  possible,  and (2) when the number
of  directors  is  increased  by the Board of  Directors  and any newly  created
directorships  are  filled by the  Board,  there  will be no  classification  of
additional  directors  until the next  annual  meeting of  shareholders.  If the
shareholders  are  empowered by the By-Laws or by law to remove a director  (for
cause or  otherwise),  the exercise of that power will  require the  affirmative
vote of holders of two-thirds in voting power of the outstanding shares of stock
of the corporation.

      NINTH: A director of the corporation shall not be personally liable to the
corporation  or its  shareholders  for damages for breach of fiduciary duty as a
director,  except  where a judgment  or other  final  adjudication  adverse to a
director establishes that such director's acts or omissions were in bad faith or
involved  intentional  misconduct  or  knowing  violation  of law or where  such
director  personally  gained in fact a financial  profit or other  advantage  to
which such  director  was not  legally  entitled or where such  director's  acts
violated  Section 719 of The New York  Business  Corporation  Law. Any repeal or
modification  of this  Article  Ninth  shall not  adversely  affect any right or


                                      -2-
<PAGE>

protection of a director of the corporation  under this Article Ninth in respect
of any acts or omissions of such director which occurred prior to such repeal or
modification.

      TENTH:  The  affirmative  vote of holders of two-thirds in voting power of
the outstanding  shares of stock of the corporation shall be required to approve
(a) the adoption,  amendment or repeal of any  provision of the By-Laws,  or (b)
the amendment or repeal of Article  Eighth or Article Ninth of this  Certificate
of Incorporation.

      ELEVENTH:  Except  as may  otherwise  be  specifically  provided  in  this
Certificate of Incorporation,  no provision of this Certificate of Incorporation
is intended by the corporation to be construed as limiting, prohibiting, denying
or abrogating any of the general or specific  powers or rights  conferred  under
the  Business  Corporation  Law upon  the  corporation,  upon its  shareholders,
bondholders,  and security holders, and upon its directors,  officers, and other
corporate  personnel,  including in particular,  the power of the corporation to
furnish  indemnification to directors and officers in the capacities defined and
prescribed by the Business  Corporation Law and defined and prescribed rights of
said  persons  to  indemnification  as the same are  conferred  by the  Business
Corporation Law.



                                                                     EXHIBIT 4.4
   
                               OMNICOM GROUP INC.

                                    as Issuer

                                FORM OF INDENTURE

                           Dated as of _________, 199_

                             ______________________

                                   as Trustee

                             Senior Debt Securities


<PAGE>

                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

ARTICLE I.  DEFINITIONS AND INCORPORATION BY REFERENCE.........................1

     Section 1.1. Definitions..................................................1
     Section 1.2. Other Definitions............................................5
     Section 1.3. Incorporation by Reference of Trust Indenture Act............5
     Section 1.4. Rules of Construction........................................6

ARTICLE II.  THE SECURITIES....................................................6

     Section 2.1. Issuable in Series...........................................6
     Section 2.2. Establishment of Terms of Series of Securities...............6
     Section 2.3. Execution and Authentication.................................9
     Section 2.4. Registrar and Paying Agent..................................10
     Section 2.5. Paying Agent to Hold Money in Trust.........................10
     Section 2.6. Securityholder Lists........................................11
     Section 2.7. Transfer and Exchange.......................................11
     Section 2.8. Mutilated, Destroyed, Lost and Stolen Securities............11
     Section 2.9. Outstanding Securities......................................12
     Section 2.10. Treasury Securities........................................13
     Section 2.11. Temporary Securities.......................................13
     Section 2.12. Cancellation...............................................13
     Section 2.13. Defaulted Interest.........................................13
     Section 2.14. Global Securities..........................................14
     Section 2.15. CUSIP Numbers..............................................15

ARTICLE III.  REDEMPTION .....................................................15

     Section 3.1. Notice to Trustee...........................................15
     Section 3.2. Selection of Securities to be Redeemed......................15
     Section 3.3. Notice of Redemption........................................16
     Section 3.4. Effect of Notice of Redemption..............................16
     Section 3.5. Deposit of Redemption Price.................................16
     Section 3.6. Securities Redeemed in Part.................................17

ARTICLE IV.  COVENANTS .......................................................17

     Section 4.1. Payment of Principal and Interest...........................17
     Section 4.2. SEC Reports.................................................17
     Section 4.3. Compliance Certificate......................................17
     Section 4.4. Stay, Extension and Usury Laws..............................17
     Section 4.5. Corporate Existence.........................................18
     Section 4.6. Taxes.......................................................18


                                      -i-
<PAGE>

                                                                            Page
                                                                            ----

     Section 4.7. Limitation on Liens.........................................18

ARTICLE V.  SUCCESSORS .......................................................18

     Section 5.1. When Company May Merge, Etc.................................18
     Section 5.2. Successor Corporation Substituted...........................19

ARTICLE VI.  DEFAULTS AND REMEDIES............................................19

     Section 6.1. Events of Default...........................................19
     Section 6.2. Acceleration of Maturity; Rescission and Annulment..........21
     Section 6.3. Collection of Indebtedness and Suits for 
                  Enforcement by Trustee......................................22
     Section 6.4. Trustee May File Proofs of Claim............................22
     Section 6.5. Trustee May Enforce Claims Without 
                  Possession of Securities....................................23
     Section 6.6. Application of Money Collected..............................23
     Section 6.7. Limitation on Suits.........................................24
     Section 6.8. Unconditional Right of Holders to Receive 
                  Principal and Interest......................................24
     Section 6.9. Restoration of Rights and Remedies..........................25
     Section 6.10. Rights and Remedies Cumulative.............................25
     Section 6.11. Delay or Omission Not Waiver...............................25
     Section 6.12. Control by Holders.........................................25
     Section 6.13. Waiver of Past Defaults....................................26
     Section 6.14. Undertaking for Costs......................................26

ARTICLE VII.  TRUSTEE ........................................................26

     Section 7.1. Duties of Trustee...........................................26
     Section 7.2. Rights of Trustee...........................................28
     Section 7.3. Individual Rights of Trustee................................28
     Section 7.4. Trustee's Disclaimer........................................28
     Section 7.5. Notice of Defaults..........................................29
     Section 7.6. Reports by Trustee to Holders...............................29
     Section 7.7. Compensation and Indemnity..................................29
     Section 7.8. Replacement of Trustee......................................30
     Section 7.9. Successor Trustee by Merger, etc............................31
     Section 7.10. Eligibility; Disqualification..............................31
     Section 7.11. Preferential Collection of Claims Against Company..........31

ARTICLE VIII.  SATISFACTION AND DISCHARGE; DEFEASANCE.........................31

     Section 8.1. Satisfaction and Discharge of Indenture.....................31
     Section 8.2. Application of Trust Funds; Indemnification.................32
     Section 8.3. Legal Defeasance of Securities of any Series................33
     Section 8.4. Covenant Defeasance.........................................35
     Section 8.5. Repayment to Company........................................36


                                      -ii-
<PAGE>

                                                                            Page
                                                                            ----

ARTICLE IX.  AMENDMENTS AND WAIVERS...........................................36

     Section 9.1. Without Consent of Holders..................................36
     Section 9.2. With Consent of Holders.....................................37
     Section 9.3. Limitations.................................................37
     Section 9.4. Compliance with Trust Indenture Act.........................38
     Section 9.5. Revocation and Effect of Consents...........................38
     Section 9.6. Notation on or Exchange of Securities.......................38
     Section 9.7. Trustee Protected...........................................38

ARTICLE X.  MISCELLANEOUS.....................................................39

     Section 10.1. Trust Indenture Act Controls...............................39
     Section 10.2. Notices....................................................39
     Section 10.3. Communication by Holders with Other Holders................40
     Section 10.4. Certificate and Opinion as to Conditions Precedent.........40
     Section 10.5. Statements Required in Certificate or Opinion..............40
     Section 10.6. Rules by Trustee and Agents................................40
     Section 10.7. Legal Holidays.............................................41
     Section 10.8. No Recourse Against Others.................................41
     Section 10.9. Counterparts...............................................41
     Section 10.10. Governing Laws............................................41
     Section 10.11 No Adverse Interpretation of Other Agreements..............41
     Section 10.12. Successors................................................41
     Section 10.13. Severability..............................................41
     Section 10.14. Table of Contents, Headings, Etc..........................42

ARTICLE XI.  SINKING FUNDS....................................................42

     Section 11.1. Applicability of Article...................................42
     Section 11.2. Satisfaction of Sinking Fund Payments with Securities......42
     Section 11.3. Redemption of Securities for Sinking Fund..................43

Exhibit A -- Form of Senior Debt Security....................................A-1


                                     -iii-
<PAGE>

                               OMNICOM GROUP INC.
                              Cross-Reference Table

Trust Indenture Act Section                                    Indenture Section
- ---------------------------                                    -----------------

Section 310(a)(1).............................................    7.10          
           (a)(2).............................................    7.10
           (a)(3).............................................    Not Applicable
           (a)(4).............................................    Not Applicable
           (a)(5).............................................    7.10
           (b)................................................    7.10
Section 311(a) ...............................................    7.11
           (b)................................................    7.11
           (c)................................................    Not Applicable
Section 312(a) ...............................................    2.6
           (b)................................................    10.3
           (c)................................................    10.3
Section 313(a) ...............................................    7.6
           (b)(1).............................................    7.6
           (b)(2).............................................    7.6
           (c)(1).............................................    7.6
           (d)................................................    7.6
Section 3.14(a)...............................................    4.2, 10.5
           (b)................................................    Not Applicable
           (c)(1).............................................    10.4
           (c)(2).............................................    10.4
           (c)(3).............................................    Not Applicable
           (d)................................................    Not Applicable
           (e)................................................    10.5
           (f)................................................    Not Applicable
Section 315(a) ...............................................    7.1
           (b)................................................    7.5
           (c)................................................    7.1
           (d)................................................    7.1
           (e)................................................    6.14
Section 316(a) ...............................................    2.10
           (a)(1)(A)..........................................    6.12
           (a)(1)(B)..........................................    6.13
           (b)................................................    6.8
Section 317(a)(1).............................................    6.3
           (a)(2).............................................    6.4
           (b)................................................    2.5
Section 318(a) ...............................................    10.1
                                                              
Note:  This Cross-Reference Table is not part of the Indenture.


<PAGE>

      Indenture dated as of ___________, 199_ between Omnicom Group Inc., a New
York corporation (the "Company"), and _________________, a ________________, as
Trustee ("Trustee").

      The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its debentures, notes
or other evidences of indebtedness to be issued in one or more series (the
"Securities"), as herein provided, up to such principal amount as may from time
to time be authorized in or pursuant to one or more resolutions of the Board of
Directors or by supplemental indenture.

      Each party agrees as follows for the benefit of the other party and for
the equal and ratable benefit of the Holders of the Securities issued under this
Indenture.

                                   ARTICLE I.

                   DEFINITIONS AND INCORPORATION BY REFERENCE

      Section 1.1 Definitions.

      "Additional Amounts" means any additional amounts which are required
hereby or by any Security, under circumstances specified herein or therein, to
be paid by the Company in respect of certain taxes imposed on Holders specified
therein and which are owing to such Holders.

      "Affiliate" of any specified person means any other person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified person. For the purposes of this definition,
"control" (including, with correlative meanings, the terms "controlled by" and
"under common control with"), as used with respect to any person, shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of the management or policies of such person, whether through the
ownership of voting securities or by agreement or otherwise.

      "Agent" means any Registrar, Paying Agent or Service Agent.

      "Board of Directors" means the Board of Directors of the Company or any
duly authorized committee thereof.

      "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors or pursuant to authorization by the Board of Directors and to be in
full force and effect on the date of the certificate (and delivered to the
Trustee, if appropriate).

      "Business Day" means, unless otherwise provided by Board Resolution,
Officers' Certificate or supplemental indenture hereto for a particular Series,
any day except a Saturday, Sunday or a legal holiday in The City of New York on
which banking institutions are authorized or required by law, regulation or
executive order to close.

<PAGE>

      "Company" means the party named as such above until a successor replaces
it pursuant to this Indenture and thereafter means the successor.

      "Company Order" means a written order signed in the name of the Company by
two Officers, one of whom must be the Company's principal executive officer,
principal financial officer or principal accounting officer.

      "Company Request" means a written request signed in the name of the
Company by its Chairman of the Board, a President or a Vice President, and by
its Treasurer, an Assistant Treasurer, its Secretary or an Assistant Secretary,
and delivered to the Trustee.

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

      "Debt" of any person as of any date means, without duplication, all
indebtedness of such person in respect of borrowed money, including all
interest, fees and expenses owed in respect thereto (whether or not the recourse
of the lender is to the whole of the assets of such person or only to a portion
thereof), or evidenced by bonds, notes, debentures or similar instruments.

      "Default" means any event which is, or with the passage of time or giving
of notice or both would be, an Event of Default.

      "Depository" means, with respect to the Securities of any Series issuable
or issued in whole or in part in the form of one or more Global Securities, the
person designated as Depository for such Series by the Company, which Depository
shall be a clearing agency registered under the Exchange Act; and if at any time
there is more than one such person, "Depository" as used with respect to the
Securities of any Series shall mean the Depository with respect to the
Securities of such Series.

      "Discount Security" means any Security that provides for an amount less
than the stated principal amount thereof to be due and payable upon declaration
of acceleration of the maturity thereof pursuant to Section 6.2.

      "Dollars" means the currency of The United States of America.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended from
time to time.

      "Global Security" or "Global Securities" means a Security or Securities,
as the case may be, in the form established pursuant to Section 2.2 evidencing
all or part of a Series of Securities, issued to the Depository for such Series
or its nominee, and registered in the name of such Depository or nominee.

      "Holder" or "Securityholder" means a person in whose name a Security is
registered.


                                      -2-
<PAGE>

      "Indenture" means this Indenture as amended or supplemented from time to
time and shall include the form and terms of particular Series of Securities
established as contemplated hereunder.

      "interest" with respect to any Discount Security which by its terms bears
interest only after Maturity, means interest payable after Maturity.

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

      "Officer" means the Chairman of the Board, the Chief Executive Officer,
the Chief Operating Officer, the Chief Financial Officer, any Vice-President,
the Treasurer, the Secretary, any Assistant Treasurer or any Assistant Secretary
of the Company.

      "Officers' Certificate" means a certificate signed by two Officers, one of
whom must be the Company's principal executive officer, principal financial
officer or principal accounting officer.

      "Opinion of Counsel" means a written opinion of legal counsel who is
acceptable to the Trustee. The counsel may be an employee of or counsel to the
Company.

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

      "principal" of a Security means the principal of the Security plus, when
appropriate, the premium, if any, on, and any Additional Amounts in respect of,
the Security.

      "Responsible Officer" means any officer of the Trustee in its Corporate
Trust Office and also means, with respect to a particular corporate trust
matter, any other officer to whom any corporate trust matter is referred because
of his or her knowledge of and familiarity with a particular subject.

      "SEC" means the Securities and Exchange Commission.

      "Securities" means the debentures, notes or other debt instruments of the
Company of any Series authenticated and delivered under this Indenture.

      "Securities Act" means the Securities Act of 1933, as amended from time to
time.

      "Series" or "Series of Securities" means each series of debentures, notes
or other debt instruments of the Company created pursuant to Sections 2.1 and
2.2 hereof.

      "Significant Subsidiary" means (i) any direct or indirect Subsidiary of
the Company that would be a "significant subsidiary" as defined in Article 1,
Rule 1-02 of


                                      -3-
<PAGE>

Regulation S-X, promulgated pursuant to the Securities Act, as such regulation
is in effect on the date hereof, or (ii) any group of direct or indirect
Subsidiaries of the Company that, taken together as a group, would be a
"significant subsidiary" as defined in Article 1, Rule 1-02 of Regulation S-X,
promulgated pursuant to the Securities Act, as such regulation is in effect on
the date hereof.

      "Stated Maturity" when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.

      "Subsidiary" of any specified person means any corporation of which at
least a majority of the outstanding stock having by the terms thereof ordinary
voting power for the election of directors of such corporation (irrespective of
whether or not at the time stock of any other class or classes of such
corporation shall have or might have voting power by reason of the happening of
any contingency) is at the time directly or indirectly owned by such person, or
by one or more other Subsidiaries, or by such person and one or more other
Subsidiaries.

      "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code ss.ss.
77aaa-77bbbb), as amended from time to time, and as in effect on the date of
this Indenture; provided, however, that in the event the TIA is amended after
such date, "TIA" means, to the extent required by any such amendment, the Trust
Indenture Act as so amended.

      "Trustee" means the person named as the "Trustee" in the first paragraph
of this instrument until a successor Trustee shall have become such pursuant to
this Indenture, and thereafter "Trustee" shall mean or include each person who
is then a Trustee hereunder, and if at any time there is more than one such
person, "Trustee" as used with respect to the Securities of any Series shall
mean the Trustee with respect to Securities of that Series.

      "U.S. Government Obligations" means securities which are (i) direct
obligations of the United States of America for the payment of which its full
faith and credit is pledged or (ii) obligations of a person controlled or
supervised by and acting as an agency or instrumentality of the United States of
America the payment of which is unconditionally guaranteed as a full faith and
credit obligation by the United States of America, and which in the case of (i)
and (ii) are not callable or redeemable at the option of the issuer thereof, and
shall also include a depository receipt issued by a bank or trust company as
custodian with respect to any such U.S. Government Obligation or a specific
payment of interest on or principal of any such U.S. Government Obligation held
by such custodian for the account of the holder of a depository receipt,
provided that (except as required 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 the U.S.
Government Obligation evidenced by such depository receipt.


                                      -4-
<PAGE>

      Section 1.2 Other Definitions.

                  DEFINED IN SECTION                                       TERM
                  ------------------                                       ----

         "Bankruptcy Law"                                                   6.1
         "Custodian"                                                        6.1
         "Event of Default"                                                 6.1
         "Journal"                                                         10.15
         "Judgment Currency"                                               10.16
         "Legal Holiday"                                                   10.7
         "mandatory sinking fund payment"                                  11.1
         "Market Exchange Rate"                                            10.15
         "New York Banking Day"                                            10.16
         "optional sinking fund payment"                                   11.1
         "Paying Agent"                                                     2.4
         "Registrar"                                                        2.4
         "Service Agent"                                                    2.4
         "successor person"                                                 5.1

      Section 1.3 Incorporation by Reference of Trust Indenture Act.

      Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture. The following
TIA terms used in this Indenture have the following meanings:

            "Commission" means the SEC.

            "indenture securities" means the Securities.

            "indenture security holder" means a Securityholder.

            "indenture to be qualified" means this Indenture.

            "indenture trustee" or "institutional trustee" means the Trustee.

            "obligor" on the Securities means the Company and any successor
      obligor upon the Securities.

      All other terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule under the TIA
and not otherwise defined herein are used herein as so defined.


                                      -5-
<PAGE>

      Section 1.4 Rules of Construction.

      Unless the context otherwise requires:

            (a) a term has the meaning assigned to it;

            (b) an accounting term not otherwise defined has the meaning
      assigned to it in accordance with generally accepted accounting
      principles;

            (c) references to "generally accepted accounting principles" shall
      mean generally accepted accounting principles in effect as of the time
      when and for the period as to which such accounting principles are to be
      applied;

            (d) "or" is not exclusive;

            (e) words in the singular include the plural, and in the plural
      include the singular; and

            (f) provisions apply to successive events and transactions.

                                   ARTICLE II.

                                 THE SECURITIES

      Section 2.1 Issuable in Series.

      The aggregate principal amount of Securities that may be authenticated and
delivered under this Indenture is unlimited. The Securities may be issued in one
or more Series. All Securities of a Series shall be identical except as may be
set forth in a Board Resolution, a supplemental indenture or an Officers'
Certificate detailing the adoption of the terms thereof pursuant to the
authority granted under a Board Resolution. In the case of Securities of a
Series to be issued from time to time, the Board Resolution, Officers'
Certificate or supplemental indenture may provide for the method by which
specified terms (such as interest rate, maturity date, record date or date from
which interest shall accrue) are to be determined. Securities may differ between
Series in respect of any matters, provided that all Series of Securities shall
be equally and ratably entitled to the benefits of the Indenture.

      Section 2.2 Establishment of Terms of Series of Securities.

      At or prior to the issuance of any Securities within a Series, the
following shall be established (as to the Series generally, in the case of
Subsection 2.2.1 and either as to such Securities within the Series or as to the
Series generally in the case of Subsections 2.2.2 through 2.2.19) by a Board
Resolution, a supplemental indenture or an Officers' Certificate pursuant to
authority granted under a Board Resolution:

            2.2.1 the title of the Series (which shall distinguish the
Securities of that particular Series from the Securities of any other Series);


                                      -6-
<PAGE>

            2.2.2 the price or prices (expressed as a percentage of the
principal amount thereof) at which the Securities of the Series will be issued;

            2.2.3 any limit upon the aggregate principal amount of the
Securities of the Series which may be authenticated and delivered under this
Indenture (except for Securities authenticated and delivered upon registration
of transfer of, or in exchange for, or in lieu of, other Securities of the
Series pursuant to Section 2.7, 2.8, 2.11, 3.6 or 9.6);

            2.2.4 the date or dates on which the principal of the Securities of
the Series is payable;

            2.2.5 the rate or rates (which may be fixed or variable) per annum
or, if applicable, the method used to determine such rate or rates (including,
but not limited to, any commodity, commodity index, stock exchange index or
financial index) at which the Securities of the Series shall bear interest, if
any, the date or dates from which such interest, if any, shall accrue, the date
or dates on which such interest, if any, shall commence and be payable and any
regular record date for the interest payable on any interest payment date;

            2.2.6 the place or places where the principal of and interest, if
any, on the Securities of the Series shall be payable, or the method of such
payment, if by wire transfer, mail or other means;

            2.2.7 if applicable, the period or periods within which, the price
or prices at which and the terms and conditions upon which the Securities of the
Series may be redeemed, in whole or in part, at the option of the Company;

            2.2.8 the obligation, if any, of the Company to redeem or purchase
the Securities of the Series pursuant to any sinking fund or analogous
provisions or at the option of a Holder thereof and the period or periods within
which, the price or prices at which and the terms and conditions upon which
Securities of the Series shall be redeemed or purchased, in whole or in part,
pursuant to such obligation;

            2.2.9 the dates, if any, on which and the price or prices at which
the Securities of the Series will be repurchased by the Company at the option of
the Holders thereof and other detailed terms and provisions of such repurchase
obligations;

            2.2.10 if other than denominations of $1,000 and any integral
multiple thereof, the denominations in which the Securities of the Series shall
be issuable;

            2.2.11 whether the Securities will be issuable as Global Securities;

            2.2.12 if other than the principal amount thereof, the portion of
the principal amount of the Securities of the Series that shall be payable upon
declaration of acceleration of the maturity thereof pursuant to Section 6.2;


                                      -7-
<PAGE>

            2.2.13 the manner in which the amounts of payment of principal of or
interest, if any, on the Securities of the Series will be determined, if such
amounts may be determined by reference to an index based on a currency or
currencies or by reference to a commodity, commodity index, stock exchange index
or financial index;

            2.2.14 any addition to or change in the Events of Default which
applies to any Securities of the Series and any change in the right of the
Trustee or the requisite Holders of such Securities to declare the principal
amount thereof due and payable pursuant to Section 6.2;

            2.2.15 any addition to or change in the covenants set forth in
Articles IV or V which applies to Securities of the Series;

            2.2.16 any other terms of the Securities of the Series (which terms
shall not be inconsistent with the provisions of this Indenture, except as
permitted by Section 9.1, but which may modify or delete any provision of this
Indenture insofar as it applies to such Series);

            2.2.17 any depositories, interest rate calculation agents, or other
agents with respect to Securities of such Series if other than those appointed
herein;

            2.2.18 the form and terms of any guarantee of the Securities and the
terms and conditions, if any, upon which any guarantees thereof shall be
subordinated in right of payment to other indebtedness of the Company or any
guarantor; and

            2.2.19 if and as applicable, the terms of any right to exchange for
or convert Securities of the Series into shares of common stock of the Company
or other securities or property.

      All Securities of any one Series need not be issued at the same time and
may be issued from time to time, consistent with the terms of this Indenture, if
so provided by or pursuant to the Board Resolution, supplemental indenture or
Officers' Certificate referred to above, and the authorized principal amount of
any Series may not be increased to provide for issuances of additional
Securities of such Series, unless otherwise provided in such Board Resolution,
supplemental indenture or Officers' Certificate.

      The Securities of each Series shall be in substantially the form set forth
in Exhibit A to this Indenture, or in such other form as shall be established by
or pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture, and may
have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistent herewith, be determined by the
officers executing such Securities, as evidenced by their execution of the
Securities. If the form of Securities of any Series is established by action
taken pursuant to a Board Resolution, a copy of an appropriate record of such
action shall be certified by the Corporate Secretary or an Assistant Corporate
Secretary of the


                                      -8-
<PAGE>

Company and delivered to the Trustee at or prior to the delivery of the Company
Order contemplated by Section 2.3 for the authentication and delivery of such
Securities.

      The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the Officers executing such Securities, as evidenced by their execution of
such Securities.

      Section 2.3 Execution and Authentication.

      Two Officers shall sign the Securities for the Company by manual or
facsimile signature.

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

      A Security shall not be valid until authenticated by the manual signature
of the Trustee or an authenticating agent. The signature shall be conclusive
evidence that the Security has been authenticated under this Indenture.

      The Trustee shall at any time, and from time to time, authenticate
Securities for original issue in the principal amount provided in the Board
Resolution, supplemental indenture hereto or Officers' Certificate, upon receipt
by the Trustee of a Company Order. Such Company Order may authorize
authentication and delivery pursuant to oral or electronic instructions from the
Company or its duly authorized agent or agents, which oral instructions shall be
promptly confirmed in writing. Each Security shall be dated the date of its
authentication unless otherwise provided by a Board Resolution, a supplemental
indenture hereto or an Officers' Certificate.

      The aggregate principal amount of Securities of any Series outstanding at
any time may not exceed any limit upon the maximum principal amount for such
Series set forth in the Board Resolution, supplemental indenture hereto or
Officers' Certificate delivered pursuant to Section 2.2, except as provided in
Section 2.8.

      Prior to the issuance of Securities of any Series, the Trustee shall have
received and (subject to Section 7.2) shall be fully protected in relying on:
(a) the Board Resolution, supplemental indenture hereto or Officers' Certificate
establishing the form of the Securities of that Series or of Securities within
that Series and the terms of the Securities of that Series or of Securities
within that Series, (b) an Officers' Certificate complying with Section 10.4,
and (c) an Opinion of Counsel complying with Section 10.4.

      The Trustee shall have the right to decline to authenticate and deliver
any Securities of such Series: (a) if the Trustee, being advised by counsel,
determines that such action may not lawfully be taken; or (b) if the Trustee in
good faith by its board of directors or trustees, executive committee or a trust
committee of directors and/or vice-presidents shall determine that such action
would expose the Trustee to personal liability to Holders of any then
outstanding Series of Securities.


                                      -9-
<PAGE>

      The Trustee may appoint an authenticating agent acceptable to the Company
to authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company or
an Affiliate.

      Section 2.4 Registrar and Paying Agent.

      The Company shall maintain, with respect to each Series of Securities, at
the place or places specified with respect to such Series pursuant to Section
2.2, an office or agency where Securities of such Series may be presented or
surrendered for payment ("Paying Agent"), where Securities of such Series may be
surrendered for registration of transfer or exchange ("Registrar") and where
notices and demands to or upon the Company in respect of the Securities of such
Series and this Indenture may be served ("Service Agent"). The Registrar shall
keep a register with respect to each Series of Securities and to their transfer
and exchange. The Company will give prompt written notice to the Trustee of the
name and address, and any change in the name or address, of each Registrar,
Paying Agent or Service Agent. If at any time the Company shall fail to maintain
any such required Registrar, Paying Agent or Service Agent or shall fail to
furnish the Trustee with the name and address thereof, such presentations,
surrenders, notices and demands may be made or served at the Corporate Trust
Office of the Trustee, and the Company hereby appoints the Trustee as its agent
to receive all such presentations, surrenders, notices and demands.

      The Company may also from time to time designate one or more
co-registrars, additional paying agents or additional service agents and may
from time to time rescind such designations; provided, however, that no such
designation or rescission shall in any manner relieve the Company of its
obligations to maintain a Registrar, Paying Agent and Service Agent in each
place so specified pursuant to Section 2.2 for Securities of any Series for such
purposes. The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the name or address of any such
co-registrar, additional paying agent or additional service agent. The term
"Registrar" includes any co-registrar; the term "Paying Agent" includes any
additional paying agent; and the term "Service Agent" includes any additional
service agent.

      The Company hereby appoints the Trustee the initial Registrar, Paying
Agent and Service Agent for each Series unless another Registrar, Paying Agent
or Service Agent, as the case may be, is appointed prior to the time Securities
of that Series are first issued.

      Section 2.5 Paying Agent to Hold Money in Trust.

      The Company shall require each Paying Agent other than the Trustee to
agree in writing that the Paying Agent will hold in trust, for the benefit of
Securityholders of any Series of Securities, or the Trustee, all money held by
the Paying Agent for the payment of principal of or interest on the Series of
Securities, and will notify the Trustee of any default by the Company in making
any such payment. While any such default continues, the Trustee may require a
Paying Agent to pay all money held by it to the Trustee.


                                      -10-
<PAGE>

      The Company at any time may require a Paying Agent to pay all money held
by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if
other than the Company or a Subsidiary) shall have no further liability for the
money. If the Company or a Subsidiary acts as Paying Agent, it shall segregate
and hold in a separate trust fund for the benefit of Securityholders of any
Series of Securities all money held by it as Paying Agent.

      Section 2.6 Securityholder Lists.

      The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Securityholders of each Series of Securities and shall otherwise comply with TIA
ss. 312(a). If the Trustee is not the Registrar, the Company shall furnish to
the Trustee at least ten days before each interest payment date and at such
other times as the Trustee may request in writing a list, in such form and as of
such date as the Trustee may reasonably require, of the names and addresses of
Securityholders of each Series of Securities.

      Section 2.7 Transfer and Exchange.

      Where Securities of a Series are presented to the Registrar or a
co-registrar with a request to register a transfer or to exchange them for an
equal principal amount of Securities of the same Series, the Registrar shall
register the transfer or make the exchange if its requirements for such
transactions are met. To permit registrations of transfers and exchanges, the
Trustee shall authenticate Securities at the Registrar's request. No service
charge shall be made for any registration of transfer or exchange (except as
otherwise expressly permitted herein), but the Company may require payment of a
sum sufficient to cover any transfer tax or similar governmental charge payable
in connection therewith (other than any such transfer tax or similar
governmental charge payable upon exchanges pursuant to Sections 2.11, 3.6 or
9.6).

      Neither the Company nor the Registrar shall be required (a) to issue,
register the transfer of, or exchange Securities of any Series for the period
beginning at the opening of business fifteen days immediately preceding the
mailing of a notice of redemption of Securities of that Series selected for
redemption and ending at the close of business on the day of such mailing, or
(b) to register the transfer of or exchange Securities of any Series selected,
called or being called for redemption as a whole or the portion being redeemed
of any such Securities selected, called or being called for redemption in part.

      Section 2.8 Mutilated, Destroyed, Lost and Stolen Securities.

      If any mutilated Security is surrendered to the Trustee, the Company shall
execute and the Trustee shall authenticate and deliver in exchange therefor a
new Security of the same Series and of like tenor and principal amount and
bearing a number not contemporaneously outstanding.

      If there shall be delivered to the Company and the Trustee (i) evidence to
their satisfaction of the destruction, loss or theft of any Security and (ii)
such security or indemnity as may be required by them to save each of them and
any agent of either of them harmless, then, in


                                      -11-
<PAGE>

the absence of notice to the Company or the Trustee that such Security has been
acquired by a bona fide purchaser, the Company shall execute and upon its
request the Trustee shall authenticate and make available for delivery, in lieu
of any such destroyed, lost or stolen Security, a new Security of the same
Series and of like tenor and principal amount and bearing a number not
contemporaneously outstanding.

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

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

      Every new Security of any Series issued pursuant to this Section in lieu
of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that Series duly issued hereunder.

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

      Section 2.9 Outstanding Securities.

      The Securities outstanding at any time are all the Securities
authenticated by the Trustee except for those canceled by it, those delivered to
it for cancellation, those reductions in the interest on a Global Security
effected by the Trustee in accordance with the provisions hereof and those
described in this Section as not outstanding.

      If a Security is replaced pursuant to Section 2.8, it ceases to be
outstanding until the Trustee receives proof satisfactory to it that the
replaced Security is held by a bona fide purchaser.

      If the Paying Agent (other than the Company, a Subsidiary or an Affiliate
of any thereof) holds on the Maturity of Securities of a Series money sufficient
to pay such Securities payable on that date, then on and after that date such
Securities of the Series cease to be outstanding and interest on them ceases to
accrue.

      A Security does not cease to be outstanding because the Company or an
Affiliate holds the Security.

      In determining whether the Holders of the requisite principal amount of
outstanding Securities have given any request, demand, authorization, direction,
notice, consent


                                      -12-
<PAGE>

or waiver hereunder, the principal amount of a Discount Security that shall be
deemed to be outstanding for such purposes shall be the amount of the principal
thereof that would be due and payable as of the date of such determination upon
a declaration of acceleration of the Maturity thereof pursuant to Section 6.2.

      Section 2.10 Treasury Securities.

      In determining whether the Holders of the required principal amount of
Securities of a Series have concurred in any request, demand, authorization,
direction, notice, consent or waiver Securities of a Series owned by the Company
or an Affiliate shall be disregarded, except that for the purposes of
determining whether the Trustee shall be protected in relying on any such
request, demand, authorization, direction, notice, consent or waiver only
Securities of a Series that the Trustee knows are so owned shall be so
disregarded.

      Section 2.11 Temporary Securities.

      Until definitive Securities are ready for delivery, the Company may
prepare and the Trustee shall authenticate temporary Securities upon a Company
Order. Temporary Securities shall be substantially in the form of definitive
Securities but may have variations that the Company considers appropriate for
temporary Securities. Without unreasonable delay, the Company shall prepare and
the Trustee upon request shall authenticate definitive Securities of the same
Series and date of maturity in exchange for temporary Securities. Until so
exchanged, temporary securities shall have the same rights under this Indenture
as the definitive Securities.

      Section 2.12 Cancellation.

      The Company at any time may deliver Securities to the Trustee for
cancellation. The Registrar and the Paying Agent shall forward to the Trustee
any Securities surrendered to them for registration of transfer, exchange or
payment. The Trustee shall cancel all Securities surrendered for transfer,
exchange, payment, replacement or cancellation and shall destroy such canceled
Securities (subject to the record retention requirement of the Exchange Act) and
deliver a certificate of such destruction to the Company, unless the Company
otherwise directs. The Company may not issue new Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation.

      Section 2.13 Defaulted Interest.

      If the Company defaults in a payment of interest on a Series of
Securities, it shall pay the defaulted interest, plus, to the extent permitted
by law, any interest payable on the defaulted interest, to the persons who are
Securityholders of the Series on a subsequent special record date. The Company
shall fix the record date and payment date. At least 30 days before the record
date, the Company shall mail to the Trustee and to each Securityholder of the
Series a notice that states the record date, the payment date and the amount of
interest to be paid. The Company may pay defaulted interest in any other lawful
manner.


                                      -13-
<PAGE>

      Section 2.14 Global Securities.

            2.14.1 Terms of Securities. A Board Resolution, a supplemental
indenture hereto or an Officers' Certificate shall establish whether the
Securities of a Series shall be issued in whole or in part in the form of one or
more Global Securities and the Depository for such Global Security or
Securities.

            2.14.2 Transfer and Exchange. Notwithstanding any provisions to the
contrary contained in Section 2.7 of the Indenture and in addition thereto, any
Global Security shall be exchangeable pursuant to Section 2.7 of the Indenture
for Securities registered in the names of Holders other than the Depository for
such Security or its nominee only if (i) such Depository notifies the Company
that it is unwilling or unable to continue as Depository for such Global
Security or if at any time such Depository ceases to be a clearing agency
registered under the Exchange Act, and, in either case, the Company fails to
appoint a successor Depository within 90 days of such event, (ii) the Company
executes and delivers to the Trustee an Officers' Certificate to the effect that
such Global Security shall be so exchangeable or (iii) an Event of Default with
respect to the Securities represented by such Global Security shall have
happened and be continuing. Any Global Security that is exchangeable pursuant to
the preceding sentence shall be exchangeable for Securities registered in such
names as the Depository shall direct in writing in an aggregate principal amount
equal to the principal amount of the Global Security with like tenor and terms.

            Except as provided in this Section 2.14.2, a Global Security may not
be transferred except as a whole by the Depository with respect to such Global
Security to a nominee of such Depository, by a nominee of such Depository to
such Depository or another nominee of such Depository or by the Depository or
any such nominee to a successor Depository or a nominee of such a successor
Depository.

            2.14.3 Legend. Any Global Security issued hereunder shall bear a
legend in substantially the following form:

            "This Security is a Global Security within the meaning of the
      Indenture hereinafter referred to and is registered in the name of the
      Depository or a nominee of the Depository. This Security is exchangeable
      for Securities registered in the name of a person other than the
      Depository or its nominee only in the limited circumstances described in
      the Indenture, and may not be transferred except as a whole by the
      Depository to a nominee of the Depository, 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 a successor Depository."

            2.14.4 Acts of Holders. The Depository, as a Holder, may appoint
agents and otherwise authorize participants to give or take any request, demand,
authorization, direction, notice, consent, waiver or other action which a Holder
is entitled to give or take under the Indenture.


                                      -14-
<PAGE>

            2.14.5 Payments. Notwithstanding the other provisions of this
Indenture, unless otherwise specified as contemplated by Section 2.2, payment of
the principal of and interest, if any, on any Global Security shall be made to
the Holder thereof.

            2.14.6 Consents, Declaration and Directions. Except as provided in
Section 2.14.5, the Company, the Trustee and any Agent shall treat a person as
the Holder of such principal amount of outstanding Securities of such Series
represented by a Global Security as shall be specified in a written statement of
the Depository with respect to such Global Security, for purposes of obtaining
any consents, declarations, waivers or directions required to be given by the
Holders pursuant to this Indenture.

      Section 2.15 CUSIP Numbers.

      The Company in issuing the Securities 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 Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other elements of
identification printed on the Securities, and any such redemption shall not be
affected by any defect in or omission of such numbers.

                                  ARTICLE III.

                                   REDEMPTION

      Section 3.1 Notice to Trustee.

      The Company may, with respect to any Series of Securities, reserve the
right to redeem and pay the Series of Securities or may covenant to redeem and
pay the Series of Securities or any part thereof prior to the Stated Maturity
thereof at such time and on such terms as provided for in such Securities. If a
Series of Securities is redeemable and the Company wants or is obligated to
redeem prior to the Stated Maturity thereof all or part of the Series of
Securities pursuant to the terms of such Securities, it shall notify the Trustee
of the redemption date and the principal amount of Series of Securities to be
redeemed. The Company shall give the notice at least 45 days before the
redemption date (or such shorter notice as may be acceptable to the Trustee).

      Section 3.2 Selection of Securities to be Redeemed.

      Unless otherwise indicated for a particular Series by a Board Resolution,
a supplemental indenture or an Officers' Certificate, if less than all the
Securities of a Series are to be redeemed, the Trustee shall select the
Securities of the Series to be redeemed in any manner that the Trustee deems
fair and appropriate. The Trustee shall make the selection from Securities of
the Series outstanding not previously called for redemption. The Trustee may
select for redemption portions of the principal of Securities of the Series that
have denominations larger than $1,000. Securities of the Series and portions of
them it selects shall be in amounts of $1,000 


                                      -15-
<PAGE>

or whole multiples of $1,000 or, with respect to Securities of any Series
issuable in other denominations pursuant to Section 2.2.10, the minimum
principal denomination for each Series and integral multiples thereof.
Provisions of this Indenture that apply to Securities of a Series called for
redemption also apply to portions of Securities of that Series called for
redemption.

      Section 3.3 Notice of Redemption.

      Unless otherwise indicated for a particular Series by Board Resolution, a
supplemental indenture hereto or an Officers' Certificate, at least 30 days but
not more than 60 days before a redemption date, the Company shall mail a notice
of redemption by first-class mail to each Holder whose Securities are to be
redeemed.

      The notice shall identify the Securities of the Series to be redeemed and
shall state:

            (a) the redemption date;

            (b) the redemption price;

            (c) the name and address of the Paying Agent;

            (d) that Securities of the Series called for redemption must be
      surrendered to the Paying Agent to collect the redemption price;

            (e) that interest on Securities of the Series called for redemption
      ceases to accrue on and after the redemption date; and

            (f) any other information as may be required by the terms of the
      particular Series or the Securities of a Series being redeemed.

      At the Company's request, the Trustee shall give the notice of redemption
in the Company's name and at its expense.

      Section 3.4 Effect of Notice of Redemption.

      Once notice of redemption is mailed as provided in Section 3.3, Securities
of a Series called for redemption become due and payable on the redemption date
and at the redemption price. A notice of redemption may not be conditional. Upon
surrender to the Paying Agent, such Securities shall be paid at the redemption
price plus accrued interest to the redemption date.

      Section 3.5 Deposit of Redemption Price.

      On or before the redemption date, the Company shall deposit with the
Paying Agent money sufficient to pay the redemption price of and accrued
interest, if any, on all Securities to be redeemed on that date.


                                      -16-
<PAGE>

      Section 3.6 Securities Redeemed in Part.

      Upon surrender of a Security that is redeemed in part, the Trustee shall
authenticate for the Holder a new Security of the same Series and the same
maturity equal in principal amount to the unredeemed portion of the Security
surrendered.

                                   ARTICLE IV.

                                    COVENANTS

      Section 4.1 Payment of Principal and Interest.

      The Company covenants and agrees for the benefit of the Holders of each
Series of Securities that it will duly and punctually pay the principal of and
interest, if any, on the Securities of that Series in accordance with the terms
of such Securities and this Indenture.

      Section 4.2 SEC Reports.

      The Company shall deliver to the Trustee within 15 days after it files
them with the SEC copies of the annual reports and of the information,
documents, and other reports (or copies of such portions of any of the foregoing
as the SEC may by rules and regulations prescribe) which the Company is required
to file with the SEC pursuant to Section 13 or 15(d) of the Exchange Act. The
Company also shall comply with the other provisions of TIA ss. 314(a).

      Section 4.3 Compliance Certificate.

      The Company shall deliver to the Trustee, within 90 days after the end of
each fiscal year of the Company, an Officers' Certificate stating that a review
of the activities of the Company and its Subsidiaries during the preceding
fiscal year has been made under the supervision of the signing Officers with a
view to determining whether the Company has kept, observed, performed and
fulfilled its obligations under this Indenture, and further stating, as to each
such Officer signing such certificate, that to the best of his knowledge the
Company has kept, observed, performed and fulfilled each and every covenant
contained in this Indenture and is not in default in the performance or
observance of any of the terms, provisions and conditions hereof (or, if a
Default or Event of Default shall have occurred, describing all such Defaults or
Events of Default of which he may have knowledge).

      The Company will, so long as any of the Securities are outstanding,
deliver to the Trustee, forthwith upon becoming aware of any Default or Event of
Default, an Officers' Certificate specifying such Default or Event of Default
and what action the Company is taking or proposes to take with respect thereto.

      Section 4.4 Stay, Extension and Usury Laws.

      The Company covenants (to the extent that it may lawfully do so) that it
will not at any time insist upon, plead, or in any manner whatsoever claim or
take the benefit or


                                      -17-
<PAGE>

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

      Section 4.5 Corporate Existence.

      Subject to Article V, the Company will do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate existence
and the corporate, partnership or other existence of each Significant Subsidiary
in accordance with the respective organizational documents of each Significant
Subsidiary and the rights (charter and statutory), licenses and franchises of
the Company and its Significant Subsidiaries; provided, however, that the
Company shall not be required to preserve any such right, license or franchise,
or the corporate, partnership or other existence of any Significant Subsidiary,
if the Board of Directors shall determine that the preservation thereof is no
longer desirable in the conduct of the business of the Company and its
Subsidiaries taken as a whole and that the loss thereof is not adverse in any
material respect to the Holders.

      Section 4.6 Taxes.

      The Company shall, and shall cause each of its Significant Subsidiaries
to, pay prior to delinquency all taxes, assessments and governmental levies,
except as contested in good faith and by appropriate proceedings.

      Section 4.7 Limitation on Liens. As long as any of the Securities are
outstanding (unless provision has been made for the payment of all amounts due
or to become due thereon in accordance with the terms of Article VIII of this
Indenture), the Company undertakes not to grant any security interest in any or
all of its present or future assets to secure any other indebtedness of the
Company for borrowed money represented by notes, bonds, debentures or other debt
securities, ranking senior to or on a parity with the Securities, issued
pursuant to a distribution (i) in an underwritten public offering registered
under the Securities Act or (ii) in an underwritten offering to institutional
investors pursuant to Rule 144A without at the same time securing all
outstanding Securities equally and ratably with such securities.

                                   ARTICLE V.

                                   SUCCESSORS

      Section 5.1 When Company May Merge, Etc.

      The Company shall not consolidate with or merge into, or convey, transfer
or lease all or substantially all of its properties and assets to, any person (a
"successor person"), and may not permit any person to merge into, or convey,
transfer or lease its properties and assets substantially as an entirety to, the
Company, unless:


                                      -18-
<PAGE>

            (a) the successor person (if any) is a corporation, partnership,
      trust or other entity organized and validly existing under the laws of any
      U.S. domestic jurisdiction and expressly assumes the Company's obligations
      on the Securities and under this Indenture and

            (b) immediately after giving effect to the transaction, no Default
      or Event of Default, shall have occurred and be continuing.

      The Company shall deliver to the Trustee prior to the consummation of the
proposed transaction an Officers' Certificate to the foregoing effect and an
Opinion of Counsel stating that the proposed transaction and such supplemental
indenture comply with this Indenture.

      Section 5.2 Successor Corporation Substituted.

      Upon any consolidation or merger, or any sale, lease, conveyance or other
disposition of all or substantially all of the assets of the Company in
accordance with Section 5.1, the successor corporation formed by such
consolidation or into or with which the Company is merged or to which such sale,
lease, conveyance or other disposition is made shall succeed to, and be
substituted for, and may exercise every right and power of, the Company under
this Indenture with the same effect as if such successor person has been named
as the Company herein; provided, however, that the predecessor Company in the
case of a sale, lease, conveyance or other disposition shall not be released
from the obligation to pay the principal of and interest, if any, on the
Securities.

                                   ARTICLE VI.

                              DEFAULTS AND REMEDIES

      Section 6.1 Events of Default.

      "Event of Default," wherever used herein with respect to Securities of any
Series, means any one of the following events, unless in the establishing Board
Resolution, supplemental indenture or Officers' Certificate, it is provided that
such Series shall not have the benefit of said Event of Default:

            (a) default in the payment of any interest on any Security of that
      Series when it becomes due and payable, and continuance of such default
      for a period of 30 days (unless the entire amount of such payment is
      deposited by the Company with the Trustee or with a Paying Agent prior to
      the expiration of such period of 30 days); or

            (b) default in the payment of the principal of any Security of that
      Series when such payment becomes due and payable, at its Maturity, upon
      redemption, by acceleration or otherwise; or


                                      -19-
<PAGE>

            (c) default in the deposit of any sinking fund payment, when as due
      in respect of any Security of that Series; or

            (d) default in the performance or breach of any covenant or warranty
      of the Company in this Indenture (other than a covenant or warranty that
      has been included in this Indenture solely for the benefit of Series of
      Securities other than that Series), which default continues uncured for a
      period of 30 days after there has been given, by registered or certified
      mail, to the Company by the Trustee or to the Company and the Trustee by
      the Holders of at least 25% in aggregate principal amount of the
      outstanding Securities of that Series a written notice specifying such
      default or breach and requiring it to be remedied and stating that such
      notice is a "Notice of Default" hereunder; or

            (e) the Company or any of its Significant Subsidiaries pursuant to
      or within the meaning of any Bankruptcy Law:

                  (i) commences a voluntary case,

                  (ii) consents to the entry of an order for relief against it
            in an involuntary case,

                  (iii) consents to the appointment of a Custodian of it or for
            all or substantially all of its property,

                  (iv) makes a general assignment for the benefit of its
            creditors, or

                  (v) generally is unable to pay its debts as the same become
            due; or

            (f) a court of competent jurisdiction enters an order or decree
      under any Bankruptcy Law that:

                  (i) is for relief against the Company or any of its
            Significant Subsidiaries in an involuntary case,

                  (ii) appoints a Custodian of the Company or any of its
            Significant Subsidiaries or for all or substantially all of its
            property, or

                  (iii) orders the liquidation of the Company or any of its
            Significant Subsidiaries, and the order or decree remains unstayed
            and in effect for 60 days; or

            (g) any other Event of Default provided with respect to Securities
      of that Series, which is specified in a Board Resolution, a supplemental
      indenture hereto or an Officers' Certificate, in accordance with Section
      2.2.14.


                                      -20-
<PAGE>

      The term "Bankruptcy Law" means Title 11, U.S. Code or any similar Federal
or State law for the relief of debtors. The term "Custodian" means any receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law.

      Section 6.2 Acceleration of Maturity; Rescission and Annulment.

      If an Event of Default with respect to Securities of any Series at the
time outstanding occurs and is continuing (other than an Event of Default as to
the Company referred to in Section 6.1(e) or (f)) then in every such case the
Trustee or the Holders of not less than 25% in aggregate principal amount of the
outstanding Securities of that Series may declare the principal amount (or, if
any Securities of that Series are Discount Securities, such portion of the
principal amount as may be specified in the terms of such Securities) of and
accrued and unpaid interest, if any, on all of the Securities of that Series to
be due and payable immediately, by a notice in writing to the Company (and to
the Trustee if given by Holders), and upon any such declaration such principal
amount (or specified amount) and accrued and unpaid interest, if any, shall
become immediately due and payable. If an Event of Default specified in Section
6.1(e) or (f) shall occur as to the Company, the principal amount (or specified
amount) of and accrued and unpaid interest, if any, on all outstanding
Securities shall ipso facto become and be immediately due and payable without
any declaration or other act on the part of the Trustee or any Holder.

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

            (a) the Company has paid or deposited with the Trustee a sum
      sufficient to pay

                  (i) all overdue interest, if any, on all Securities that
            Series,

                  (ii) the principal of any Securities of that Series have
            become due otherwise than by such declaration of and interest
            thereon at the rate or rates therefor in such Securities,

                  (iii) to the extent that payment of such interest is, interest
            upon any overdue principal and overdue at the rate or rates
            prescribed therefor in such, and

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

         and

            (b) all Events of Default with respect to Securities of that Series,
      other than the non-payment of the principal of Securities of that Series
      which have become due 


                                      -21-
<PAGE>

      solely by such declaration of acceleration, have been cured or waived as
      provided in Section 6.13.

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

      Section 6.3 Collection of Indebtedness and Suits for Enforcement by
Trustee.

      The Company covenants that if

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

            (b) default is made in the payment of principal of any Security at
      the Maturity thereof, or

            (c) default is made in the deposit of any sinking fund payment when
      and as due by the terms of a Security,

then, the Company will, upon demand of the Trustee, pay to it, for the benefit
of the Holders of such Securities, the whole amount then due and payable on such
Securities for principal and interest and, to the extent that payment of such
interest shall be legally enforceable, interest on any overdue principal or any
overdue interest, at the rate or rates prescribed therefor in such Securities,
and, in addition thereto, such further amount as shall be sufficient to cover
the costs and expenses of collection, including the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

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

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

      Section 6.4 Trustee May File Proofs of Claim.

      In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the 


                                      -22-
<PAGE>

Company or any other obligor upon the Securities or the property of the Company
or of such other obligor or their creditors, the Trustee (irrespective of
whether the principal of the Securities shall then be due and payable as therein
expressed or by declaration or otherwise and irrespective of whether the Trustee
shall have made any demand on the Company for the payment of overdue principal
or interest) shall be entitled and empowered, by intervention in such proceeding
or otherwise,

            (a) to file and prove a claim for the whole amount of principal and
      interest owing and unpaid in respect of the Securities 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 the reasonable
      compensation, expenses, disbursements and advances of the Trustee, its
      agents and counsel) and of the Holders allowed in such judicial
      proceeding, and

            (b) to collect and receive any moneys or other property payable or
      deliverable on any such claims and to distribute the same, and any
      custodian, receiver, assignee, trustee, liquidator, sequestrator or other
      similar official in any such judicial proceeding is hereby authorized by
      each Holder to make such payments to the Trustee and, in the event that
      the Trustee shall consent to the making of such payments directly to the
      Holders, to pay to the Trustee any amount due it for the reasonable
      compensation, expenses, disbursements and advances of the Trustee, its
      agents and counsel, and any other amounts due the Trustee under Section
      7.7.

      Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceeding.

      Section 6.5 Trustee May Enforce Claims Without Possession of Securities.

      All rights of action and claims under this Indenture or the Securities may
be prosecuted and enforced by the Trustee without the possession of any of the
Securities or the production thereof in any proceeding relating thereto, and any
such proceeding instituted by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment shall, after provision
for the payment of the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, be for the ratable benefit of
the Holders of the Securities in respect of which such judgment has been
recovered.

      Section 6.6 Application of Money Collected.

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

      First: To the payment of all amounts due the Trustee under Section 7.7;
and


                                      -23-
<PAGE>

      Second: To the payment of the amounts then due and unpaid for principal of
and interest on the Securities in respect of which or for the benefit of which
such money has been collected, ratably, without preference or priority of any
kind, according to the amounts due and payable on such Securities for principal
and interest, respectively; and

      Third: To the Company.

      Section 6.7 Limitation on Suits.

      No Holder of any Security of any Series shall have any right to institute
any proceeding, judicial or otherwise, with respect to this Indenture, or for
the appointment of a receiver or trustee, or for any other remedy hereunder,
unless

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

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

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

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

            (e) no direction inconsistent with such written request has been
      given to the Trustee during such 60-day period by the Holders of a
      majority in principal amount of the outstanding Securities of that Series;
      it being understood and intended that no one or more of such Holders shall
      have any right in any manner whatever by virtue of, or by availing of, any
      provision of this Indenture to affect, disturb or prejudice the rights of
      any other of such Holders, or to obtain or to seek to obtain priority or
      preference over any other of such Holders or to enforce any right under
      this Indenture, except in the manner herein provided and for the equal and
      ratable benefit of all such Holders.

      Section 6.8 Unconditional Right of Holders to Receive Principal and
Interest.

      Notwithstanding any other provision in this Indenture, the Holder of any
Security shall have the right, which is absolute and unconditional, to receive
payment of the principal of and interest, if any, on such Security on the Stated
Maturity or Stated Maturities expressed in such Security (or, in the case of
redemption, on the redemption date) and to institute suit for the enforcement of
any such payment, and such rights shall not be impaired without the consent of
such Holder.


                                      -24-
<PAGE>

      Section 6.9 Restoration of Rights and Remedies.

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

      Section 6.10 Rights and Remedies Cumulative.

      Except as otherwise provided with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Securities in Section 2.8, no right or
remedy herein conferred upon or reserved to the Trustee or to the Holders is
intended to be exclusive of any other right or remedy, and every right and
remedy shall, to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

      Section 6.11 Delay or Omission Not Waiver.

      No delay or omission of the Trustee or of any Holder of any Securities to
exercise any right or remedy accruing upon any Event of Default shall impair any
such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article or by law to
the Trustee or to the Holders may be exercised from time to time, and as often
as may be deemed expedient, by the Trustee or by the Holders, as the case may
be.

      Section 6.12 Control by Holders.

      The Holders of a majority in principal amount of the outstanding
Securities of any Series shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred on the Trustee, with respect to the
Securities of such Series, provided that

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

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

            (c) subject to the provisions of Section 6.1, the Trustee shall have
      the right to decline to follow any such direction if the Trustee in good
      faith shall, by a 


                                      -25-
<PAGE>

      Responsible Officer of the Trustee, determine that the proceeding so
      directed would involve the Trustee in personal liability.

      Section 6.13 Waiver of Past Defaults.

      The Holders of not less than a majority in principal amount of the
outstanding Securities of any Series may on behalf of the Holders of all the
Securities of such Series waive any past Default hereunder with respect to such
Series and its consequences, except a Default in the payment of the principal of
or interest on any Security of such Series (provided, however, that the Holders
of a majority in principal amount of the outstanding Securities of any Series
may rescind an acceleration and its consequences, including any related payment
default that resulted from such acceleration). Upon any such waiver, such
Default shall cease to exist, and any Event of Default arising therefrom shall
be deemed to have been cured, for every purpose of this Indenture; but no such
waiver shall extend to any subsequent or other Default or impair any right
consequent thereon.

      Section 6.14 Undertaking for Costs.

      All parties to this Indenture agree, and each Holder of any Security 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
Company, to any suit instituted by the Trustee, to any suit instituted by any
Holder, or group of Holders, holding in the aggregate more than 10% in principal
amount of the outstanding Securities of any Series, or to any suit instituted by
any Holder for the enforcement of the payment of the principal of or interest on
any Security on or after the Stated Maturity or Stated Maturities expressed in
such Security (or, in the case of redemption, on the redemption date).

                                  ARTICLE VII.

                                     TRUSTEE

      Section 7.1 Duties of Trustee.

      (a) If an Event of Default has occurred and is continuing, the Trustee
shall exercise 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.

      (b) Except during the continuance of an Event of Default:


                                      -26-
<PAGE>

            (i) The Trustee need perform only those duties that are specifically
      set forth in this Indenture and no others.

            (ii) In the absence of bad faith on its part, the Trustee may
      conclusively rely, as to the truth of the statements and the correctness
      of the opinions expressed therein, upon Officers' Certificates or Opinions
      of Counsel furnished to the Trustee and conforming to the requirements of
      this Indenture; however, in the case of any such Officers' Certificates or
      Opinions of Counsel which by any provisions hereof are specifically
      required to be furnished to the Trustee, the Trustee shall examine such
      Officers' Certificates and Opinions of Counsel to determine whether or not
      they conform to the requirements of this Indenture.

      (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:

            (i) This paragraph does not limit the effect of paragraph (b) of
      this Section.

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

            (iii) The Trustee shall not be liable with respect to any action
      taken, suffered or omitted to be taken by it with respect to Securities of
      any Series in good faith in accordance with the direction of the Holders
      of a majority in principal amount of the outstanding Securities of such
      Series relating to the time, method and place of conducting any proceeding
      for any remedy available to the Trustee, or exercising any trust or power
      conferred upon the Trustee, under this Indenture with respect to the
      Securities of such Series.

      (d) Every provision of this Indenture that in any way relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section.

      (e) The Trustee may refuse to perform any duty or exercise any right or
power unless it receives indemnity satisfactory to it against any loss,
liability or expense.

      (f) The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree in writing with the Company. Money held in
trust by the Trustee need not be segregated from other funds except to the
extent required by law.

      (g) No provision of this Indenture shall require the Trustee to risk its
own funds or otherwise incur any financial liability in the performance of any
of its duties, or in the exercise of any of its rights or powers, if it shall
have reasonable grounds


                                      -27-
<PAGE>

for believing that repayment of such funds or adequate indemnity against such
risk is not reasonably assured to it.

      (h) The Paying Agent, the Registrar and any authenticating agent shall be
entitled to the protections, immunities and standard of care as are set forth in
paragraphs (a), (b) and (c) of this Section with respect to the Trustee.

      Section 7.2 Rights of Trustee.

      (a) The Trustee may rely on and shall be protected in acting or refraining
from acting upon any document believed by it to be genuine and to have been
signed or presented by the proper person. The Trustee need not investigate any
fact or matter stated in the document.

      (b) Before the Trustee acts or refrains from acting, it may require an
Officers' Certificate or an Opinion of Counsel. The Trustee shall not be liable
for any action it takes or omits to take in good faith in reliance on such
Officers' Certificate or Opinion of Counsel.

      (c) The Trustee may act through agents and shall not be responsible for
the misconduct or negligence of any agent appointed with due care. No Depository
shall be deemed an agent of the Trustee and the Trustee shall not be responsible
for any act or omission by any Depository.

      (d) The Trustee shall not be liable for any action it takes or omits to
take in good faith which it believes to be authorized or within its rights or
powers.

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

      (f) The Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request or direction of any of
the Holders of Securities unless such Holders shall have offered to the Trustee
reasonable security or indemnity against the costs, expenses and liabilities
which might be incurred by it in compliance with such request or direction.

      Section 7.3 Individual Rights of Trustee.

      The Trustee in its individual or any other capacity may become the owner
or pledgee of Securities and may otherwise deal with the Company or an Affiliate
with the same rights it would have if it were not Trustee. Any Agent may do the
same with like rights. The Trustee is also subject to Sections 7.10 and 7.11.

      Section 7.4 Trustee's Disclaimer.

      The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities, it shall not be accountable for the Company's use
of the proceeds


                                      -28-
<PAGE>

from the Securities, and it shall not be responsible for any statement in the
Securities other than its authentication.

      Section 7.5 Notice of Defaults.

      If a Default or Event of Default occurs and is continuing with respect to
the Securities of any Series and if it is known to a Responsible Officer of the
Trustee, the Trustee shall mail to each Securityholder of the Securities of that
Series notice of a Default or Event of Default within 90 days after it occurs
or, if later, after a Responsible Officer of the Trustee has knowledge of such
Default or Event of Default. Except in the case of a Default or Event of Default
in payment of principal of or interest on any Security of any Series, the
Trustee may withhold the notice if and so long as its corporate trust committee
or a committee of its Responsible Officers in good faith determines that
withholding the notice is in the interests of Securityholders of that Series.

      Section 7.6 Reports by Trustee to Holders.

      Within 60 days after May 15 in each year, the Trustee shall transmit by
mail to all Securityholders, as their names and addresses appear on the register
kept by the Registrar, a brief report dated as of such May 15, in accordance
with, and to the extent required under, TIA ss. 313.

      A copy of each report at the time of its mailing to Securityholders of any
Series shall be filed with the SEC and each stock exchange on which the
Securities of that Series are listed. The Company shall promptly notify the
Trustee when Securities of any Series are listed on any stock exchange.

      Section 7.7 Compensation and Indemnity.

      The Company shall pay to the Trustee from time to time reasonable
compensation for its services. The Trustee's compensation shall not be limited
by any law on compensation of a trustee of an express trust. The Company shall
reimburse the Trustee upon request for all reasonable out-of-pocket expenses
incurred by it. Such expenses shall include the reasonable compensation and
expenses of the Trustee's agents and counsel.

      The Company shall indemnify the Trustee (including the cost of defending
itself) against any loss, liability or expense incurred by it except as set
forth in the next paragraph in the performance of its duties under this
Indenture as Trustee or Agent. The Trustee shall notify the Company promptly of
any claim for which it may seek indemnity. The Company shall defend the claim
and the Trustee shall cooperate in the defense. The Trustee may have separate
counsel and the Company shall pay the reasonable fees and expenses of such
counsel. The Company need not pay for any settlement made without its consent,
which consent shall not be unreasonably withheld. This indemnification shall
apply to officers, directors, employees, shareholders and agents of the Trustee.


                                      -29-
<PAGE>

      The Company need not reimburse any expense or indemnify against any loss
or liability incurred by the Trustee or by any officer, director, employee,
shareholder or agent of the Trustee through negligence or bad faith.

      To secure the Company's payment obligations in this Section, the Trustee
shall have a lien prior to the Securities of any Series on all money or property
held or collected by the Trustee, except that held in trust to pay principal and
interest on particular Securities of that Series.

      When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.1(e) or (f) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.

      Section 7.8 Replacement of Trustee.

      A resignation or removal of the Trustee and appointment of a successor
Trustee shall become effective only upon the successor Trustee's acceptance of
appointment as provided in this Section.

      The Trustee may resign with respect to the Securities of one or more
Series by so notifying the Company. The Holders of a majority in principal
amount of the Securities of any Series may remove the Trustee with respect to
that Series by so notifying the Trustee and the Company. The Company may remove
the Trustee with respect to Securities of one or more Series if:

            (a) the Trustee fails to comply with Section 7.10;

            (b) the Trustee is adjudged a bankrupt or an insolvent or an order
      for relief is entered with respect to the Trustee under any Bankruptcy
      Law;

            (c) a Custodian or public officer takes charge of the Trustee or its
      property; or

            (d) the Trustee becomes incapable of acting.

      If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holders
of a majority in principal amount of the then outstanding Securities may appoint
a successor Trustee to replace the successor Trustee appointed by the Company.

      If a successor Trustee with respect to the Securities of any one or more
Series does not take office within 60 days after the retiring Trustee resigns or
is removed, the retiring Trustee, the Company or the Holders of at least 10% in
principal amount of the Securities of the applicable Series may petition any
court of competent jurisdiction for the appointment of a successor Trustee.


                                      -30-
<PAGE>

      If the Trustee with respect to the Securities of any one or more Series
fails to comply with Section 7.10, any Securityholder of the applicable Series
may petition any court of competent jurisdiction for the removal of the Trustee
and the appointment of a successor Trustee.

      A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company. Immediately after that, the retiring
Trustee shall transfer all property held by it as Trustee to the successor
Trustee subject to the lien provided for in Section 7.7, the resignation or
removal of the retiring Trustee shall become effective, and the successor
Trustee shall have all the rights, powers and duties of the Trustee with respect
to each Series of Securities for which it is acting as Trustee under this
Indenture. A successor Trustee shall mail a notice of its succession to each
Securityholder of each such Series. Notwithstanding replacement of the Trustee
pursuant to this Section 7.8, the Company's obligations under Section 7.7 hereof
shall continue for the benefit of the retiring trustee with respect to expenses
and liabilities incurred by it prior to such replacement.

      Section 7.9 Successor Trustee by Merger, etc.

      If the Trustee consolidates with, merges or converts into, or transfers
all or substantially all of its corporate trust business to, another
corporation, the successor corporation without any further act shall be the
successor Trustee.

      Section 7.10 Eligibility; Disqualification.

      This Indenture shall always have a Trustee who satisfies the requirements
of TIA ss.ss. 310(a)(1), (2) and (5). The Trustee shall always have a combined
capital and surplus of at least $25,000,000 as set forth in its most recent
published annual report of condition. The Trustee shall comply with TIA ss.ss.
310(b).

      Section 7.11 Preferential Collection of Claims Against Company.

      The Trustee is subject to TIA ss. 311(a), excluding any creditor
relationship listed in TIA ss. 311(b). A Trustee who has resigned or been
removed shall be subject to TIA ss. 311(a) to the extent indicated.

                                  ARTICLE VIII.

                     SATISFACTION AND DISCHARGE; DEFEASANCE

      Section 8.1 Satisfaction and Discharge of Indenture.

      This Indenture shall upon Company Order cease to be of further effect
(except as hereinafter provided in this Section 8.1), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

            (a) either


                                      -31-
<PAGE>

                  (i) all Securities theretofore authenticated and delivered
            (other than Securities that have been destroyed, lost or stolen and
            that have been replaced or paid) have been delivered to the Trustee
            for cancellation; or

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

                        (1) have become due and payable, or

                        (2) will become due and payable at their Stated Maturity
                  within one year, or

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

                        (4) are deemed paid and discharged pursuant to Section
                  8.3, as applicable;

and the Company, in the case of (1), (2) or (3) above, has deposited or caused
to be deposited with the Trustee as trust funds in trust an amount sufficient
for the purpose of paying and discharging the entire indebtedness on such
Securities not theretofore delivered to the Trustee for cancellation, for
principal and interest to the date of such deposit (in the case of Securities
which have become due and payable on or prior to the date of such deposit) or to
the Stated Maturity or redemption date, as the case may be;

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

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

      Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 7.7, and, if money shall
have been deposited with the Trustee pursuant to clause (a) of this Section, the
provisions of Sections 2.4, 2.7, 2.8, 8.1, 8.2 and 8.5 shall survive.

      Section 8.2 Application of Trust Funds; Indemnification.

      (a) Subject to the provisions of Section 8.5, all money deposited with the
Trustee pursuant to Section 8.1, all money and U.S. Government Obligations
deposited with the Trustee pursuant to Section 8.3 or 8.4 and all money received
by the Trustee in respect of U.S. Government Obligations deposited with the
Trustee pursuant to Section 8.3 or 8.4, shall be held 


                                      -32-
<PAGE>

in trust and applied by it, in accordance with the provisions of the Securities
and this Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the persons entitled thereto, of the principal and interest for
whose payment such money has been deposited with or received by the Trustee or
to make mandatory sinking fund payments or analogous payments as contemplated by
Sections 8.3 or 8.4.

      (b) The Company shall pay and shall indemnify the Trustee against any tax,
fee or other charge imposed on or assessed against U.S. Government Obligations
deposited pursuant to Sections 8.3 or 8.4 or the interest and principal received
in respect of such obligations other than any payable by or on behalf of
Holders.

      (c) The Trustee shall deliver or pay to the Company from time to time upon
Company Request any U.S. Government Obligations or money held by it as provided
in Sections 8.3 or 8.4 which, in the opinion of a nationally recognized firm of
independent certified public accountants expressed in a written certification
thereof delivered to the Trustee, are then in excess of the amount thereof which
then would have been required to be deposited for the purpose for which such
U.S. Government Obligations or money were deposited or received. This provision
shall not authorize the sale by the Trustee of any U.S. Government Obligations
held under this Indenture.

      Section 8.3 Legal Defeasance of Securities of any Series.

      Unless this Section 8.3 is otherwise specified, pursuant to Section
2.2.16, to be inapplicable to Securities of any Series, the Company shall be
deemed to have paid and discharged the entire indebtedness on all the
outstanding Securities of such Series on the 91st day after the date of the
deposit referred to in subparagraph (d) hereof, and the provisions of this
Indenture, as it relates to such outstanding Securities of such Series, shall no
longer be in effect (and the Trustee, at the expense of the Company, shall, at
Company Request, execute proper instruments acknowledging the same), except as
to:

            (a) the rights of Holders of Securities of such Series to receive,
      from the trust funds described in subparagraph (d) hereof, (i) payment of
      the principal of and each installment of principal of and interest on the
      outstanding Securities of such Series on the Stated Maturity of such
      principal or installment of principal or interest and ii) the benefit of
      any mandatory sinking fund payments applicable to the Securities of such
      Series on the day on which such payments are due and payable in accordance
      with the terms of this Indenture and the Securities of such Series;

            (b) the provisions of Sections 2.4, 2.7, 2.8, 8.2, 8.3 and 8.5; and

            (c) the rights, powers, trust and immunities of the Trustee
      hereunder;

provided that, the following conditions shall have been satisfied:


                                      -33-
<PAGE>

            (d) the Company shall have deposited or caused to be deposited
      irrevocable with the Trustee as trust funds in trust for making the
      purpose of the following payments, specifically pledged as security for
      and dedicated solely to the benefit of the Holders of such Securities cash
      in Dollars (or such other money or currencies as shall then be legal
      tender in the United States) and/or U.S. Government Obligations, which
      through the payment of interest and principal in respect thereof, in
      accordance with their terms, will provide (and without reinvestment and
      assuming no tax liability will be imposed on such Trustee), not later than
      one day before the due date of any payment of money, an amount in cash,
      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 and discharge each installment of principal
      (including mandatory sinking fund or analogous payments) of and interest,
      if any, on all the Securities of such Series on the dates such
      installments of interest or principal are due;

            (e) such deposit will not result in a breach or violation of, or
      constitute a default under, this Indenture or any other agreement or
      installment to which the Company is a party or by which it is bound;

            (f) no Default or Event of Default with respect to the Securities of
      such Series shall have occurred and be continuing on the date of such
      deposit or during the period ending on the 91st day after such date;

            (g) the Company shall have delivered to the Trustee an Officers'
      Certificate and an Opinion of Counsel to the effect that (i) the Company
      has received from, or there has been published by, the Internal Revenue
      Service a ruling, or (ii) since the date of execution of this Indenture,
      there has been a change in the applicable Federal income tax law, in
      either case to the effect that, and based thereon such Opinion of Counsel
      shall confirm that, the Holders of the Securities of such Series 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 amount and in the same manner and at the same times
      as would have been the case if such deposit, defeasance and discharge had
      not occurred;

            (h) the Company shall have delivered to the Trustee an Officers'
      Certificate stating that the deposit was not made by the Company with the
      intent of preferring the Holders of the Securities of such Series over any
      other creditors of the company or with the intent of defeating, hindering,
      delaying or defrauding any other creditors of the Company;

            (i) such deposit shall not result in the trust arising from such
      deposit constituting an investment company (as defined in the Investment
      Company Act of 1940, as amended), or such trust shall be qualified under
      such Act or exempt from regulation thereunder; and


                                      -34-
<PAGE>

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

      Section 8.4 Covenant Defeasance.

      Unless this Section 8.4 is otherwise specified pursuant to Section 2.2.16
to be inapplicable to Securities of any Series, on and after the 91st day after
the date of the deposit referred to in subparagraph (a) hereof, the Company may
omit to comply with any term, provision or condition set forth under Sections
4.2, 4.3, 4.4, 4.5, 4.6, and 5.1 as well as any additional covenants contained
in a supplemental indenture hereto for a particular Series of Securities or a
Board Resolution or an Officers' Certificate delivered pursuant to Section
2.2.16 (and the failure to comply with any such covenants shall not constitute a
Default or Event of Default under Section 6.1), with respect to the Securities
of such Series, provided that the following conditions shall have been
satisfied:

            (a) With reference to this Section 8.4, the Company has deposited or
      caused to be irrevocably deposited (except as provided in Section 8.2(c))
      with the Trustee as trust funds in trust, specifically pledged as security
      for, and dedicated solely to, the benefit of the Holders of such
      Securities cash in Dollars (or such other money or currencies as shall
      then be legal tender in the United States) and/or U.S. Government
      Obligations, which through the payment of interest and principal in
      respect thereof, in accordance with their terms, will provide (and without
      reinvestment and assuming no tax liability will be imposed on such
      Trustee), not later than one day before the due date of any payment of
      money, an amount in cash, sufficient, in the opinion of a nationally
      recognized firm of independent certified public accountants expressed in a
      written certification thereof delivered to the Trustee, to pay principal
      and interest, if any, on and any mandatory sinking fund in respect of the
      Securities of such Series on the dates such installments of interest or
      principal are due;

            (b) Such deposit will not result in a breach or violation of, or
      constitute a default under, this Indenture or any other agreement or
      instrument to which the Company is a party or by which it is bound;

            (c) No Default or Event of Default with respect to the Securities of
      such Series shall have occurred and be continuing on the date of such
      deposit or during the period ending on the 91st day after such date;

            (d) the Company shall have delivered to the Trustee an Opinion of
      Counsel confirming that Holders of the Securities of such Series will not
      recognize income, gain or loss for federal income tax purposes as a result
      of such deposit and 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 defeasance had not occurred;


                                      -35-
<PAGE>

            (e) the Company shall have delivered to the Trustee an Officers'
      Certificate stating the deposit was not made by the Company with the
      intent of preferring the Holders of the Securities of such Series over any
      other creditors of the Company or with the intent of defeating, hindering,
      delaying or defrauding any other creditors of the Company; and

            (f) The Company 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 Section 8.4 have been complied with.

      Section 8.5 Repayment to Company.

      The Trustee and the Paying Agent shall pay to the Company upon request any
money held by them for the payment of principal and interest that remains
unclaimed for two years. After that, Securityholders entitled to the money must
look to the Company for payment as general creditors unless an applicable
abandoned property law designates another person.

                                   ARTICLE IX.

                             AMENDMENTS AND WAIVERS

      Section 9.1 Without Consent of Holders.

      The Company and the Trustee may amend or supplement this Indenture or the
Securities of one or more Series without the consent of any Securityholder:

            (a) to cure any ambiguity, defect or inconsistency;

            (b) to comply with Article V;

            (c) to provide for uncertificated Securities in addition to or in
      place of certificated Securities;

            (d) to make any change that does not adversely affect the rights of
      any Securityholder;

            (e) to provide for the issuance of and establish the form and terms
      and conditions of Securities of any Series as permitted by this Indenture;

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

            (g) to comply with requirements of the SEC in order to effect or
      maintain the qualification of this Indenture under the TIA.


                                      -36-
<PAGE>

      Section 9.2 With Consent of Holders.

      The Company and the Trustee may enter into a supplemental indenture with
the written consent of the Holders of at least a majority in principal amount of
the outstanding Securities of each Series affected by such supplemental
indenture (including consents obtained in connection with a tender offer or
exchange offer for the Securities of such Series), 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 any manner
the rights of the Securityholders of each such Series. Except as provided in
Section 6.13, the Holders of at least a majority in principal amount of the
outstanding Securities of each Series affected by such waiver by notice to the
Trustee (including consents obtained in connection with a tender offer or
exchange offer for the Securities of such Series) may waive compliance by the
Company with any provision of this Indenture or the Securities with respect to
such Series.

      It shall not be necessary for the consent of the Holders of Securities
under this Section 9.2 to approve the particular form of any proposed
supplemental indenture or waiver, but it shall be sufficient if such consent
approves the substance thereof. After a supplemental indenture or waiver under
this section becomes effective, the Company shall mail to the Holders of
Securities affected thereby, a notice briefly describing the supplemental
indenture or waiver. Any failure by the Company to mail or publish such notice,
or any defect therein, shall not, however, in any way impair or affect the
validity of any such supplemental indenture or waiver.

      Section 9.3 Limitations.

      Without the consent of each Securityholder affected, an amendment or
waiver may not:

            (a) reduce the amount of Securities whose Holders must consent to an
      amendment, supplement or waiver;

            (b) reduce the rate of or change the time for payment of interest
      (including default interest) on any Security;

            (c) reduce the principal or change the Stated Maturity of any
      Security or reduce the amount of, or postpone the date fixed for, the
      payment of any sinking fund or analogous obligation;

            (d) reduce the principal amount of Discount Securities payable upon
      acceleration of the maturity thereof;

            (e) waive a Default or Event of Default in the payment of the
      principal of or interest, if any, on any Security (except a rescission of
      acceleration of the Securities of any Series by the Holders of at least a
      majority in principal amount of the outstanding Securities of such Series
      and a waiver of the payment default that resulted from such acceleration);


                                      -37-
<PAGE>

            (f) make the principal of or interest, if any, on any Security
      payable in any currency other than that stated in the Security;

            (g) make any change in Sections 6.8, 6.13, 9.3 (this sentence),
      10.15 or 10.16; or

            (h) waive a redemption payment with respect to any Security or
      change any of the provisions with respect to the redemption of any
      Securities.

      Section 9.4 Compliance with Trust Indenture Act.

      Every amendment to this Indenture or the Securities of one or more Series
shall be set forth in a supplemental indenture hereto that complies with the TIA
as then in effect.

      Section 9.5 Revocation and Effect of Consents.

      Until an amendment or waiver becomes effective, a consent to it by a
Holder of a Security is a continuing consent by the Holder and every subsequent
Holder of a Security or portion of a Security that evidences the same debt as
the consenting Holder's Security, even if notation of the consent is not made on
any Security. However, any such Holder or subsequent Holder may revoke the
consent as to his Security or portion of a Security if the Trustee receives the
notice of revocation before the date the amendment or waiver becomes effective.

      Any amendment or waiver once effective shall bind every Securityholder of
each Series affected by such amendment or waiver unless it is of the type
described in any of clauses (a) through (g) of Section 9.3. In that case, the
amendment or waiver shall bind each Holder of a Security who has consented to it
and every subsequent Holder of a Security or portion of a Security that
evidences the same debt as the consenting Holder's Security.

      Section 9.6 Notation on or Exchange of Securities.

      The Trustee may place an appropriate notation about an amendment or waiver
on any Security of any Series thereafter authenticated. The Company in exchange
for Securities of that Series may issue and the Trustee shall authenticate upon
request new Securities of that Series that reflect the amendment or waiver.

      Section 9.7 Trustee Protected.

      In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 7.1) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Trustee shall sign all
supplemental indentures, except that the Trustee need not sign any supplemental
indenture that adversely affects its rights.


                                      -38-
<PAGE>

                                   ARTICLE X.

                                  MISCELLANEOUS

      Section 10.1 Trust Indenture Act Controls.

      If any provision of this Indenture limits, qualifies, or conflicts with
another provision which is required or deemed to be included in this Indenture
by the TIA, such required or deemed provision shall control.

      Section 10.2 Notices.

      Any notice or communication by the Company or the Trustee to the other is
duly given if in writing and delivered in person or mailed by first-class mail:

                  if to the Company:

                  Omnicom Group Inc.
                  437 Madison Avenue
                  New York, New York  10022
                  Attention:_______________________

                  if to the Trustee:

                  [Name of Trustee]
                  [Address]
                  _________________________________
                  _________________________________
                  Attention:_______________________

      The Company or the Trustee by notice to the other may designate additional
or different addresses for subsequent notices or communications.

      Any notice or communication to a Securityholder shall be mailed by
first-class mail to his address shown on the register kept by the Registrar.
Failure to mail a notice or communication to a Securityholder of any Series or
any defect in it shall not affect its sufficiency with respect to other
Securityholders of that or any other Series.

      If a notice or communication is mailed or published in the manner provided
above, within the time prescribed, it is duly given, whether or not the
Securityholder receives it.

      If the Company mails a notice or communication to Securityholders, it
shall mail a copy to the Trustee and each Agent at the same time.


                                      -39-
<PAGE>

      Section 10.3 Communication by Holders with Other Holders.

      Securityholders of any Series may communicate pursuant to TIA ss. 312(b)
with other Securityholders of that Series or any other Series with respect to
their rights under this Indenture or the Securities of that Series or all
Series. The Company, the Trustee, the Registrar and anyone else shall have the
protection of TIA ss. 312(c).

      Section 10.4 Certificate and Opinion as to Conditions Precedent.

      Upon any request or application by the Company to the Trustee to take any
action under this Indenture, the Company shall furnish to the Trustee:

            (a) an Officers' Certificate stating that, in the opinion of the
      signers, all conditions precedent, if any, provided for in this Indenture
      relating to the proposed action have been complied with; and

            (b) an Opinion of Counsel stating that, in the opinion of such
      counsel, all such conditions precedent have been complied with.

      Section 10.5 Statements Required in Certificate or Opinion.

      Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture (other than a certificate provided
pursuant to TIA ss. 314(a)(4)) shall comply with the provisions of TIA ss.
314(e) and 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.

      Section 10.6 Rules by Trustee and Agents.

      The Trustee may make reasonable rules for action by or a meeting of
Securityholders of one or more Series. Any Agent may make reasonable rules and
set reasonable requirements for its functions.


                                      -40-
<PAGE>

      Section 10.7 Legal Holidays.

      Unless otherwise provided by Board Resolution, Officer's Certificate or
supplemental indenture for a particular Series, a "Legal Holiday" is any day
that is not a Business Day. If a payment date is a Legal Holiday at a place of
payment, payment may be made at that place on the next succeeding day that is
not a Legal Holiday, and no interest shall accrue for the intervening period.

      Section 10.8 No Recourse Against Others.

      A director, officer, employee or stockholder, as such, of the Company
shall not have any liability for any obligations of the Company under the
Securities or the Indenture or for any claim based on, in respect of or by
reason of such obligations or their creation. Each Securityholder by accepting a
Security waives and releases all such liability.

      The waiver and release are part of the consideration for the issue of the
Securities.

      Section 10.9 Counterparts.

      This Indenture may be executed in any number of counterparts and by the
parties hereto in separate counterparts, each of which when so executed shall be
deemed to be an original and all of which taken together shall constitute one
and the same agreement.

      Section 10.10 Governing Laws.

      THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY THE LAWS OF THE
STATE OF NEW YORK APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED IN SUCH
STATE, WITHOUT REGARD TO THE CONFLICT OF LAWS PROVISIONS THEREOF.

      Section 10.11 No Adverse Interpretation of Other Agreements.

      This Indenture may not be used to interpret another indenture, loan or
debt agreement of the Company or a Subsidiary. Any such indenture, loan or debt
agreement may not be used to interpret this Indenture.

      Section 10.12 Successors.

      All agreements of the Company in this Indenture and the Securities shall
bind its successor. All agreements of the Trustee in this Indenture shall bind
its successor.

      Section 10.13 Severability.

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


                                      -41-
<PAGE>

      Section 10.14 Table of Contents, Headings, Etc.

      The Table of Contents, Cross-Reference Table, and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or
restrict any of the terms or provisions hereof.

                                   ARTICLE XI.

                                  SINKING FUNDS

      Section 11.1 Applicability of Article.

      The provisions of this Article shall be applicable to any sinking fund for
the retirement of the Securities of a Series, except as otherwise permitted or
required by any form of Security of such Series issued pursuant to this
Indenture.

      The minimum amount of any sinking fund payment provided for by the terms
of the Securities of any Series is herein referred to as a "mandatory sinking
fund payment" and any other amount provided for by the terms of Securities of
such Series is herein referred to as an "optional sinking fund payment." If
provided for by the terms of Securities of any Series, the cash amount of any
sinking fund payment may be subject to reduction as provided in Section 11.2.
Each sinking fund payment shall be applied to the redemption of Securities of
any Series as provided for by the terms of the Securities of such Series.

      Section 11.2 Satisfaction of Sinking Fund Payments with Securities.

      The Company may, in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of any Series to be made pursuant to the
terms of such Securities (1) deliver outstanding Securities of such Series to
which such sinking fund payment is applicable (other than any of such Securities
previously called for mandatory sinking fund redemption) and (2) apply as credit
Securities of such Series to which such sinking fund payment is applicable and
which have been redeemed either at the election of the Company pursuant to the
terms of such Series of Securities (except pursuant to any mandatory sinking
fund) or through the application of permitted optional sinking fund payments or
other optional redemptions pursuant to the terms of such Securities, provided
that such Securities have not been previously so credited. Such Securities shall
be received by the Trustee, together with an Officers' Certificate with respect
thereto, not later than 15 days prior to the date on which the Trustee begins
the process of selecting Securities for redemption, and shall be credited for
such purpose by the Trustee at the price specified in such Securities for
redemption through operation of the sinking fund and the amount of such sinking
fund payment shall be reduced accordingly. If as a result of the delivery or
credit of Securities in lieu of cash payments pursuant to this Section 11.2, the
principal amount of Securities of such Series to be redeemed in order to exhaust
the aforesaid cash payment shall be less than $100,000, the Trustee need not
call Securities of such Series for redemption, except upon receipt of a Company
Order that such action be taken, and such cash payment shall be held by the
Trustee or a Paying Agent and applied to the next 


                                      -42-
<PAGE>

succeeding sinking fund payment, provided, however, that the Trustee or such
Paying Agent shall from time to time upon receipt of a Company Order pay over
and deliver to the Company any cash payment so being held by the Trustee or such
Paying Agent upon delivery by the Company to the Trustee of Securities of that
Series purchased by the Company having an unpaid principal amount equal to the
cash payment required to be released to the Company.

      Section 11.3 Redemption of Securities for Sinking Fund.

      Not less than 45 days (unless otherwise indicated in the Board Resolution,
supplemental indenture hereto or Officers' Certificate in respect of a
particular Series of Securities) prior to each sinking fund payment date for any
Series of Securities, the Company will deliver to the Trustee an Officers'
Certificate specifying the amount of the next ensuing mandatory sinking fund
payment for that Series pursuant to the terms of that Series, the portion
thereof, if any, which is to be satisfied by payment of cash and the portion
thereof, if any, which is to be satisfied by delivering and crediting of
Securities of that Series pursuant to Section 11.2, and the optional amount, if
any, to be added in cash to the next ensuing mandatory sinking fund payment, and
the Company shall thereupon be obligated to pay the amount therein specified.

      Not less than 30 days (unless otherwise indicated in the Board Resolution,
Officers' Certificate or supplemental indenture in respect of a particular
Series of Securities) before each such sinking fund payment date the Trustee
shall select the Securities to be redeemed upon such sinking fund payment date
in the manner specified in Section 3.2 and cause notice of the redemption
thereof to be given in the name of and at the expense of the Company in the
manner provided in Section 3.3. Such notice having been duly given, the
redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 3.4, 3.5 and 3.6.


                                      -43-
<PAGE>

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

                                                     OMNICOM GROUP INC.

Attest:                                              By:________________________
                                                              Name:
                                                              Its:
______________
                                                     [NAME OF TRUSTEE]

                                                     By:________________________
                                                              Name:
                                                              Its:


                                      -44-
<PAGE>

                                                                       EXHIBIT A

Senior Debt Security

                            Form of Face of Security

                                [Title of Series]

      [Insert any legend required by the Internal Revenue Code and the
regulations thereunder.]

                                                                         [CUSIP]

No.______
$________

      OMNICOM GROUP INC., a New York corporation (herein called the "Company",
which term includes any successor person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to
____________________________________, or registered assigns, the principal sum
of ______________________ Dollars on ______, _____ [if the Security is to bear
interest prior to Maturity, insert -- and to pay interest thereon from
_______________ or from the most recent interest payment date to which interest
has been paid] or duly provided for, [semi-annually on _________________ and
_________________ in each year] [If other than semi-annual payments, insert
frequency of payments and payment dates], commencing _______________, at [If the
Security is to bear interest at a fixed rate, insert -- the rate of ___% per
annum, set forth below] [If the Security is to bear interest at a variable or
floating rate and if determined with reference to an index, refer to description
of index below] until the principal hereof is paid or made available for payment
[If applicable, insert -- and (to the extent that the payment of such interest
shall be legally enforceable) at the rate of ___% per annum on any overdue
principal and premium and on any overdue installment of interest]. The interest
so payable, and punctually paid or duly provided for, on any interest payment
date will, as provided in such Indenture, be paid to the person in whose name
this Security (or one or more Predecessor Securities) is registered at the close
of business on the [regular] record date for such interest, which shall be the
________________ or ________________ (whether or not a Business Day), as the
case may be, next preceding such interest payment date. Any such interest not so
punctually paid or duly provided for will forthwith cease to be payable to the
Holder on such [regular] record date and may either be paid to the person in
whose name this Security (or one or more Predecessor Securities) is registered
at the close of business on a [special] record date for the payment of such
defaulted interest to be fixed by the Trustee, notice whereof shall be given to
Holders of Securities of this Series not less than 10 days prior to such
[special] record date, or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the
Securities of this Series may be listed, and upon such notice as may be required
by such exchange, all as more fully provided in said Indenture).


                                      A-1
<PAGE>

      [If the Securities are floating or adjustable rate securities with respect
to which the principal of or any premium or interest may be determined with
reference to an index, insert the text of the floating or adjustable rate
provision.]

      [If the Security is not to bear interest prior to Maturity, insert -- The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal of this Security shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
default in payment to the date payment of such principal has been made or duly
provided for. Interest on any overdue principal shall be payable on demand. Any
such interest on any overdue principal that is not so paid on demand shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
demand for payment to the date payment of such interest has been made or duly
provided for, and such interest shall also be payable on demand.]

      Payment of the principal of (and premium, if any) and [if applicable,
insert -- any such] interest on this Security will be made at the office or
agency of the Company maintained for that purpose in _______________, in
accordance with the terms of the Indenture referred to or the reverse hereof in
such coin or currency of the United States of America as at the time of payment
is legal tender for payment of public and private debts; provided, however, that
at the option of the Company payment of interest may be made by check mailed to
the address of the person entitled thereto as such address shall appear in the
Security register).

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

      This Security shall be deemed to be a contract made under the laws of the
State of New York, and for all purposes shall be construed in accordance with
and governed by the laws of said state.

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


                                      A-2
<PAGE>

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

Dated:

                                                   OMNICOM GROUP INC.

                                                   By___________________________

Attest:

_______________________________


                Form of Trustee's Certificate of Authentication.

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

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

                                                     By_________________________
                                                              Authorized Officer


                                      A-3
<PAGE>

                          Form of Reverse of Security.

                               OMNICOM GROUP INC.

                                [Title of Series]

      This Security is one of a duly authorized issue of securities of the
Company, designated as its _________ due ______ (herein called the
"Securities"), issued and to be issued in one or more Series under an Indenture,
dated as of _________________ (herein called the "Indenture"), between the
Company and ____________________, as Trustee (herein called the "Trustee", which
term includes any successor trustee under the Indenture), to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Company, the Trustee and the Holders of the Securities and of the terms
upon which the Securities are, and are to be, authenticated and delivered. This
Security is one of the series designated on the face hereof [, limited in
aggregate principal amount to $____________________]. Capitalized terms used in
this Security and not defined herein have the meaning ascribed thereto in the
Indenture.

      ___________, the Trustee under the Indenture has been appointed by the
Company as paying agent, Securities registrar, [conversion agent] and
[custodian] with regard to the Securities.

      In case an Event of Default shall have occurred and be continuing, the
principal of and accrued interest on all Securities may be declared, and upon
said declaration, shall become due and payable, in the manner, with the effect
and subject to the conditions provided for in the Indenture.

      [If applicable, insert -- The Securities of this Series are subject to
redemption upon not less than 30 days' nor more than 60 days' notice by mail,
[if applicable, insert -- (1) on __________________ in any year commencing with
the year _________ and ending with the year __________ through operation of the
sinking fund for this series at a redemption price equal to 100% of the
principal amount, and (2)] at any time [on or after ____________, ___], as a
whole or in part, at the election of the Company, at the following redemption
prices (expressed as percentages of the principal amount): If redeemed [on or
before __________________, ___% and if redeemed] during the 12-month period
beginning ______________ of the years indicated,

                          Redemption                                  Redemption
Year                        Price             Year                       Price
- ----                        -----             ----                       -----


and thereafter at a redemption price equal to _________________ of the principal
amount, together in the case of any such redemption [if applicable, insert --
(whether through operation of the sinking fund or otherwise)] with accrued
interest to the redemption date, but interest installments whose stated Maturity
is on or prior to such redemption date will be payable to the


                                      A-4
<PAGE>

Holders of such Securities, or one or more Predecessor Securities, of record at
the close of business on the relevant record dates referred to on the face
hereof, all as provided in the Indenture.]

      [If applicable, insert -- The Securities of this Series are subject to
redemption upon not less than 30 days' nor more than 60 days' notice by mail,
(1) on __________ in any year commencing with the year __________ and ending
with the year __________ through operation of the sinking fund for this Series
at the redemption prices for redemption through operation of the sinking fund
(expressed as percentages of the principal amount) set forth in the table below,
and (2) at any time [on or after __________], as a whole or in part, at the
election of the Company, at the redemption prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below: If redeemed during the 12-month period
beginning __________ of the years indicated,

                          Redemption Price
                           For Redemption                  Redemption Price For
                          Through Operation                Redemption Otherwise
                               of the                     Than Through Operation
Year                        Sinking Fund                    of the Sinking Fund
- ----                        ------------                    -------------------
                                                         
                                    
and thereafter at a redemption price equal to _____% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the redemption date, but
interest installments whose Stated Maturity in on or prior to such redemption
date will be payable to the Holders of such Securities, or one or more
predecessor securities, of record at the close of business on the relevant
record dates referred to on the face hereof, all as provided in the Indenture.]

      [The sinking fund for this Series provides for the redemption on
__________ in each year beginning with the year __________ and ending with the
year __________ of [not less than $__________ ("mandatory sinking fund") and not
more than] $__________ aggregate principal amount of Securities of this Series.
Securities of this Series acquired or redeemed by the Company otherwise than
through [mandatory] sinking fund payments may be credited against subsequent
[mandatory] sinking fund payments otherwise required to be made [in the inverse
order in which they become due).]

      [If the Security is subject to redemption, insert -- In the event of
redemption of this Security in part only, a new Security or Securities of this
Series and of like tenor for the unredeemed portion hereof will be issued in the
name of the Holder hereof upon the cancellation hereof.]

      The Indenture contains provisions that permit the Company to elect either
(1) to defease and be discharged from the entire indebtedness of this Security
or (2) to be released from its obligations under certain restrictive covenants
and Events of Default with respect to this 


                                      A-5
<PAGE>

Security, in each case upon payment in full of the Securities and compliance
with certain conditions set forth in the Indenture.

      [If the Security is convertible into or exchangeable for common stock of
the Company, insert appropriate provisions and specify the conversion features
and the form of conversion notice pursuant to the Form of Conversion Notice set
forth herein.]

      [If the Security is convertible into or exchangeable for other securities
or property, specify the conversion features and the form of conversion notice
pursuant to the Form of Conversion Notice set forth herein.]

      [If the Security is not an Original Issue Discount Security, insert -- If
an Event of Default with respect to Securities of this Series shall occur and be
continuing, the principal of the Securities of this Series may be declared due
and payable in the manner and with the effect provided in the Indenture.]

      [If the Security is an Original Issue-Discount Security, insert -- 
If an Event of Default with respect to Securities of this Series shall occur and
be continuing, an amount of principal of the Securities of this Series may be
declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to -- Insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable
and (ii) of interest on any overdue principal and overdue interest (in each case
to the extent that the payment of such interest shall be legally enforceable),
all of the Company's obligations in respect of the payment of the principal of
and interest, if any, on the Securities of this Series shall terminate.]

      The Indenture permits the amendment thereof and the modification of the
rights and obligations of the Company and the rights of the Holders of the
Securities of each Series to be affected under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of a majority in
principal amount of the Securities at the time outstanding of each Series to be
affected, with certain exceptions as therein provided with respect to certain
modifications or amendments which may not be made without the consent of each
Holder of such Security affected thereby. The Indenture also permits certain
amendments and modifications thereto from time to time by the Company and the
Trustee without the consent of the Holders of any Series of the Securities to be
affected thereby for certain specified purposes, including curing ambiguities,
defects or inconsistencies and making any such change that does not adversely
affect the rights of any Holder of such series of the Securities, as provided
therein.

      The Indenture contains provisions permitting the Holders of specified
percentages in principal amount of the Securities of each Series at the time
outstanding, on behalf of the Holders of all Securities of such Series, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange hereof or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.


                                      A-6
<PAGE>

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

      As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the security
register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of and any
premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities of
this Series and of like tenor, of authorized denominations and for the same
aggregate principal amount, will be issued to the designated transferee or
transferees.

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

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

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

      No recourse shall be had for the payment of the principal of (and premium,
if any) or interest on this Security, or for any claim based hereon, or
otherwise in respect hereof, or based on or in respect of the Indenture or any
indenture supplemental thereto, against any incorporator, stockholder, officer
or director, as such, past, present or future, of the Company or of any
successor corporation, whether by virtue of any constitution, statute or rule of
law, or by the enforcement of any assessment or penalty or otherwise, all such
liability being, by the acceptance hereof and as part of the consideration for
the issue hereof, expressly waived and released.

      All terms used in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture.


                                      A-7
<PAGE>

                           Form of Conversion Notice.

To Omnicom Group Inc.:

The undersigned owner of this Security hereby irrevocably exercises the option
to convert this Security, or portion hereof (which is $1,000 or an integral
multiple thereof) below designated, into [shares of common stock of the Company]
in accordance with the terms of the Indenture referred to in this Security, and
directs that the [shares] issuable and deliverable upon the conversion, together
with any check in payment for fractional shares of any securities representing
any unconverted principal amount hereof, be issued and delivered to the
registered holder hereof unless a different name has been indicated below. If
this Notice is being delivered on a date after the close of business on a
[regular] record date and prior to the opening of business on the related
interest payment date (unless this Security or the portion thereof being
converted has been called for redemption on a redemption date within such
period), this Notice is accompanied by payment, in funds acceptable to the
Company, of an amount equal to the interest payable on such interest payment
date of the principal of this Security to be converted. If shares are to be
issued in the name of a period other than the undersigned, the undersigned will
pay all transfer taxes payable with respect hereto. Any amount required to be
paid by the undersigned on account of interest accompanies this Security.


                                      A-8


                                                                    EXHIBIT 4.6

                               OMNICOM GROUP INC.

                                    as Issuer

                                FORM OF INDENTURE

                           Dated as of _________, 199_

                             ______________________

                                   as Trustee

                          Subordinated Debt Securities


<PAGE>

                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

ARTICLE I.  DEFINITIONS AND INCORPORATION BY REFERENCE.........................1

     Section 1.1. Definitions..................................................1
     Section 1.2. Other Definitions............................................5
     Section 1.3. Incorporation by Reference of Trust Indenture Act............6
     Section 1.4. Rules of Construction........................................6

ARTICLE II.  THE SECURITIES....................................................7

     Section 2.1. Issuable in Series...........................................7
     Section 2.2. Establishment of Terms of Series of Securities...............7
     Section 2.3. Execution and Authentication.................................9
     Section 2.4. Registrar and Paying Agent..................................10
     Section 2.5. Paying Agent to Hold Money in Trust.........................11
     Section 2.6. Securityholder Lists........................................11
     Section 2.7. Transfer and Exchange.......................................12
     Section 2.8. Mutilated, Destroyed, Lost and Stolen Securities............12
     Section 2.9. Outstanding Securities......................................13
     Section 2.10. Treasury Securities........................................13
     Section 2.11. Temporary Securities.......................................14
     Section 2.12. Cancellation...............................................14
     Section 2.13. Defaulted Interest.........................................14
     Section 2.14. Global Securities..........................................14
     Section 2.15. CUSIP Numbers..............................................16

ARTICLE III.  REDEMPTION .....................................................16

     Section 3.1. Notice to Trustee...........................................16
     Section 3.2. Selection of Securities to be Redeemed......................16
     Section 3.3. Notice of Redemption........................................16
     Section 3.4. Effect of Notice of Redemption..............................17
     Section 3.5. Deposit of Redemption Price.................................17
     Section 3.6. Securities Redeemed in Part.................................17

ARTICLE IV.  SUBORDINATION OF SECURITIES......................................18

     Section 4.1 Agreement of Subordination...................................18
     Section 4.2 Payments to Securityholders..................................18
     Section 4.3 Subrogation of Securities....................................19
     Section 4.4 Authorization by Securityholders.............................20
     Section 4.5 Notice to Trustee............................................20
     Section 4.6 Trustee's Relation to Senior Indebtedness....................21
     Section 4.7 No Impairment of Subordination...............................22
     Section 4.8 Certain Conversions Deemed Payment...........................22


                                      -i-
<PAGE>

                                                                            Page
                                                                            ----

     Section 4.9 Senior Indebtedness Entitled to Rely.........................22

ARTICLE V.  COVENANTS ........................................................22

     Section 5.1. Payment of Principal and Interest...........................22
     Section 5.2. SEC Reports.................................................22
     Section 5.3. Compliance Certificate......................................23
     Section 5.4. Stay, Extension and Usury Laws..............................23
     Section 5.5. Corporate Existence.........................................23
     Section 5.6. Taxes.......................................................24

ARTICLE VI.  SUCCESSORS ......................................................24

     Section 6.1. When Company May Merge, Etc.................................24
     Section 6.2. Successor Corporation Substituted...........................24

ARTICLE VII.  DEFAULTS AND REMEDIES...........................................25

     Section 7.1. Events of Default...........................................25
     Section 7.2. Acceleration of Maturity; Rescission and Annulment..........26
     Section 7.3. Collection of Indebtedness and Suits for 
                  Enforcement by Trustee......................................27
     Section 7.4. Trustee May File Proofs of Claim............................28
     Section 7.5. Trustee May Enforce Claims Without 
                  Possession of Securities....................................29
     Section 7.6. Application of Money Collected..............................29
     Section 7.7. Limitation on Suits.........................................30
     Section 7.8. Unconditional Right of Holders to Receive 
                  Principal and Interest......................................30
     Section 7.9. Restoration of Rights and Remedies..........................30
     Section 7.10. Rights and Remedies Cumulative.............................31
     Section 7.11. Delay or Omission Not Waiver...............................31
     Section 7.12. Control by Holders.........................................31
     Section 7.13. Waiver of Past Defaults....................................31
     Section 7.14. Undertaking for Costs......................................32

ARTICLE VIII.  TRUSTEE .......................................................32

     Section 8.1. Duties of Trustee...........................................32
     Section 8.2. Rights of Trustee...........................................34
     Section 8.3. Individual Rights of Trustee................................34
     Section 8.4. Trustee's Disclaimer........................................34
     Section 8.5. Notice of Defaults..........................................35
     Section 8.6. Reports by Trustee to Holders...............................35
     Section 8.7. Compensation and Indemnity..................................35
     Section 8.8. Replacement of Trustee......................................36
     Section 8.9. Successor Trustee by Merger, etc............................37
     Section 8.10. Eligibility; Disqualification..............................37
     Section 8.11. Preferential Collection of Claims Against Company..........37

                                      -ii-
<PAGE>

                                                                            Page
                                                                            ----

ARTICLE IX.  SATISFACTION AND DISCHARGE; DEFEASANCE...........................37

     Section 9.1. Satisfaction and Discharge of Indenture.....................37

     Section 9.2. Application of Trust Funds; Indemnification.................38
     Section 9.3. Legal Defeasance of Securities of any Series................39
     Section 9.4. Covenant Defeasance.........................................41
     Section 9.5. Repayment to Company........................................42

ARTICLE X.  AMENDMENTS AND WAIVERS............................................42

     Section 10.1. Without Consent of Holders.................................42
     Section 10.2. With Consent of Holders....................................42
     Section 10.3. Limitations................................................43
     Section 10.4. Compliance with Trust Indenture Act........................44
     Section 10.5. Revocation and Effect of Consents..........................44
     Section 10.6. Notation on or Exchange of Securities......................44
     Section 10.7. Trustee Protected..........................................44

ARTICLE XI. MISCELLANEOUS.....................................................45

     Section 11.1. Trust Indenture Act Controls...............................45
     Section 11.2. Notices....................................................45
     Section 11.3. Communication by Holders with Other Holders................46
     Section 11.4. Certificate and Opinion as to Conditions Precedent.........46
     Section 11.5. Statements Required in Certificate or Opinion..............46
     Section 11.6. Rules by Trustee and Agents................................46
     Section 11.7. Legal Holidays.............................................47
     Section 11.8. No Recourse Against Others.................................47
     Section 11.9. Counterparts...............................................47
     Section 11.10. Governing Laws............................................47
     Section 11.11. No Adverse Interpretation of Other Agreements.............47
     Section 11.12. Successors................................................47
     Section 11.13. Severability..............................................47
     Section 11.14. Table of Contents, Headings, Etc..........................48

ARTICLE XII.  SINKING FUNDS...................................................48

     Section 12.1. Applicability of Article...................................48
     Section 12.2. Satisfaction of Sinking Fund Payments with Securities......48
     Section 12.3. Redemption of Securities for Sinking Fund..................49

EXHIBIT A -- Form of Subordinated Debt Security..............................A-1


                                      -iii-
<PAGE>

                               OMNICOM GROUP INC.
                              Cross-Reference Table

Trust Indenture Act Section                                    Indenture Section
- ---------------------------                                    -----------------
Section 310(a)(1).............................................    8.10
           (a)(2).............................................    8.10
           (a)(3).............................................    Not Applicable
           (a)(4).............................................    Not Applicable
           (a)(5).............................................    8.10
           (b)................................................    8.10
Section 311(a) ...............................................    8.11
           (b)................................................    8.11
           (c)................................................    Not Applicable
Section 312(a) ...............................................    2.6
           (b)................................................    11.3
           (c)................................................    11.3
Section 313(a) ...............................................    8.6
           (b)(1).............................................    8.6
           (b)(2).............................................    8.6
           (c)(1).............................................    8.6
           (d)................................................    8.6
Section 3.14(a)...............................................    5.2, 11.5
           (b)................................................    Not Applicable
           (c)(1).............................................    11.4
           (c)(2).............................................    11.4
           (c)(3).............................................    Not Applicable
           (d)................................................    Not Applicable
           (e)................................................    11.5
           (f)................................................    Not Applicable
Section 315(a) ...............................................    8.1
           (b)................................................    8.5
           (c)................................................    8.1
           (d)................................................    8.1
           (e)................................................    7.14
Section 316(a) ...............................................    2.10
           (a)(1)(A)..........................................    7.12
           (a)(1)(B)..........................................    7.13
           (b)................................................    7.8
Section 317(a)(1).............................................    7.3
           (a)(2).............................................    7.4
           (b)................................................    2.5
Section 318(a) ...............................................    11.1

Note:  This Cross-Reference Table is not part of the Indenture.


<PAGE>

      Indenture dated as of ___________, 199_ between Omnicom Group Inc., a New
York corporation (the "Company"), and _________________, a ________________, as
Trustee ("Trustee").

      The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its debentures, notes
or other evidences of indebtedness to be issued in one or more series (the
"Securities"), as herein provided, up to such principal amount as may from time
to time be authorized in or pursuant to one or more resolutions of the Board of
Directors or by supplemental indenture.

      Each party agrees as follows for the benefit of the other party and for
the equal and ratable benefit of the Holders of the Securities issued under this
Indenture.

                                   ARTICLE I.

                   DEFINITIONS AND INCORPORATION BY REFERENCE

      Section 1.1 Definitions.

      "Additional Amounts" means any additional amounts which are required
hereby or by any Security, under circumstances specified herein or therein, to
be paid by the Company in respect of certain taxes imposed on Holders specified
therein and which are owing to such Holders.

      "Affiliate" of any specified person means any other person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified person. For the purposes of this definition,
"control" (including, with correlative meanings, the terms "controlled by" and
"under common control with"), as used with respect to any person, shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of the management or policies of such person, whether through the
ownership of voting securities or by agreement or otherwise.

      "Agent" means any Registrar, Paying Agent or Service Agent.

      "Board of Directors" means the Board of Directors of the Company or any
duly authorized committee thereof.

      "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors or pursuant to authorization by the Board of Directors and to be in
full force and effect on the date of the certificate (and delivered to the
Trustee, if appropriate).

      "Business Day" means, unless otherwise provided by Board Resolution,
Officers' Certificate or supplemental indenture hereto for a particular Series,
any day except a Saturday, Sunday or a legal holiday in The City of New York on
which banking institutions are authorized or required by law, regulation or
executive order to close.


<PAGE>

      "Company" means the party named as such above until a successor replaces
it pursuant to this Indenture and thereafter means the successor.

      "Company Order" means a written order signed in the name of the Company by
two Officers, one of whom must be the Company's principal executive officer,
principal financial officer or principal accounting officer.

      "Company Request" means a written request signed in the name of the
Company by its Chairman of the Board, a President or a Vice President, and by
its Treasurer, an Assistant Treasurer, its Secretary or an Assistant Secretary,
and delivered to the Trustee.

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

      "Debt" of any person as of any date means, without duplication, all
indebtedness of such person in respect of borrowed money, including all
interest, fees and expenses owed in respect thereto (whether or not the recourse
of the lender is to the whole of the assets of such person or only to a portion
thereof), or evidenced by bonds, notes, debentures or similar instruments.

      "Default" means any event which is, or with the passage of time or giving
of notice or both would be, an Event of Default.

      "Depository" means, with respect to the Securities of any Series issuable
or issued in whole or in part in the form of one or more Global Securities, the
person designated as Depository for such Series by the Company, which Depository
shall be a clearing agency registered under the Exchange Act; and if at any time
there is more than one such person, "Depository" as used with respect to the
Securities of any Series shall mean the Depository with respect to the
Securities of such Series.

      "Discount Security" means any Security that provides for an amount less
than the stated principal amount thereof to be due and payable upon declaration
of acceleration of the maturity thereof pursuant to Section 7.2.

      "Dollars" means the currency of The United States of America.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended from
time to time.

      "Global Security" or "Global Securities" means a Security or Securities,
as the case may be, in the form established pursuant to Section 2.2 evidencing
all or part of a Series of Securities, issued to the Depository for such Series
or its nominee, and registered in the name of such Depository or nominee.

      "Holder" or "Securityholder" means a person in whose name a Security is
registered.


                                      -2-
<PAGE>

      "Indenture" means this Indenture as amended or supplemented from time to
time and shall include the form and terms of particular Series of Securities
established as contemplated hereunder.

      "interest" with respect to any Discount Security which by its terms bears
interest only after Maturity, means interest payable after Maturity.

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

      "Officer" means the Chairman of the Board, the Chief Executive Officer,
the Chief Operating Officer, the Chief Financial Officer, any Vice-President,
the Treasurer, the Secretary, any Assistant Treasurer or any Assistant Secretary
of the Company.

      "Officers' Certificate" means a certificate signed by two Officers, one of
whom must be the Company's principal executive officer, principal financial
officer or principal accounting officer.

      "Opinion of Counsel" means a written opinion of legal counsel who is
acceptable to the Trustee. The counsel may be an employee of or counsel to the
Company.

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

      "principal" of a Security means the principal of the Security plus, when
appropriate, the premium, if any, on, and any Additional Amounts in respect of,
the Security.

      "Responsible Officer" means any officer of the Trustee in its Corporate
Trust Office and also means, with respect to a particular corporate trust
matter, any other officer to whom any corporate trust matter is referred because
of his or her knowledge of and familiarity with a particular subject.

      "SEC" means the Securities and Exchange Commission.

      "Securities" means the debentures, notes or other debt instruments of the
Company of any Series authenticated and delivered under this Indenture.

      "Securities Act" means the Securities Act of 1933, as amended from time to
time.

      "Senior Indebtedness" means the principal of, premium, if any, interest
on, and any other payment due pursuant to any of the following, whether
outstanding at the date hereof or hereafter incurred or created:


                                      -3-
<PAGE>

            (a) all indebtedness of the Company for money borrowed (including
      any indebtedness secured by a conditional sales contract, mortgage or
      other lien which is (i) given to secure all or part of the purchase price
      of property subject thereto, whether given to the vendor of such property
      or to another or (ii) existing on property at the time of acquisition
      thereof);

            (b) all indebtedness of the Company evidenced by notes, debentures,
      bonds or other securities sold by the Company for money;

            (c) all lease obligations of the Company which are capitalized on
      the books of the Company in accordance with generally accepted accounting
      principles;

            (d) all indebtedness of others of the kinds described in either of
      the preceding clause (a) or (b) and all lease obligations of others of the
      kind described in the preceding clause (c) assumed by or guaranteed in any
      manner by the Company or in effect guaranteed by the Company through an
      agreement to purchase, contingent or otherwise; and

            (e) all renewals, extensions or refundings of indebtedness of the
      kinds described in any of the preceding clauses (a), (b) and (d) and all
      renewals or extensions of lease obligations of the kinds described in
      either of the preceding clauses (c) and (d); unless, in the case of any
      particular indebtedness, lease, renewal, extension or refunding, the
      instrument or lease creating or evidencing the same or the assumption or
      guarantee of the same expressly provides that such indebtedness, lease,
      renewal, extension or refunding is not superior in right of payment to, or
      is pari passu with, the Securities. Notwithstanding the foregoing, Senior
      Indebtedness shall not include (i) any indebtedness or lease obligation of
      any kind of the Company to any Subsidiary of the Company, (ii) the
      Company's 4 1/4% Convertible Subordinated Debentures due 2007, and (iii)
      the Company's 2 1/4% Convertible Subordinated Debentures due 2013.

      "Series" or "Series of Securities" means each series of debentures, notes
or other debt instruments of the Company created pursuant to Sections 2.1 and
2.2 hereof.

      "Significant Subsidiary" means (i) any direct or indirect Subsidiary of
the Company that would be a "significant subsidiary" as defined in Article 1,
Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act, as such
regulation is in effect on the date hereof, or (ii) any group of direct or
indirect Subsidiaries of the Company that, taken together as a group, would be a
"significant subsidiary" as defined in Article 1, Rule 1-02 of Regulation S-X,
promulgated pursuant to the Securities Act, as such regulation is in effect on
the date hereof.

      "Stated Maturity" when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.


                                      -4-
<PAGE>

      "Subsidiary" of any specified person means any corporation of which at
least a majority of the outstanding stock having by the terms thereof ordinary
voting power for the election of directors of such corporation (irrespective of
whether or not at the time stock of any other class or classes of such
corporation shall have or might have voting power by reason of the happening of
any contingency) is at the time directly or indirectly owned by such person, or
by one or more other Subsidiaries, or by such person and one or more other
Subsidiaries.

      "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code ss.ss.
77aaa-77bbbb), as amended from time to time, and as in effect on the date of
this Indenture; provided, however, that in the event the TIA is amended after
such date, "TIA" means, to the extent required by any such amendment, the Trust
Indenture Act as so amended.

      "Trustee" means the person named as the "Trustee" in the first paragraph
of this instrument until a successor Trustee shall have become such pursuant to
this Indenture, and thereafter "Trustee" shall mean or include each person who
is then a Trustee hereunder, and if at any time there is more than one such
person, "Trustee" as used with respect to the Securities of any Series shall
mean the Trustee with respect to Securities of that Series.

      "U.S. Government Obligations" means securities which are (i) direct
obligations of the United States of America for the payment of which its full
faith and credit is pledged or (ii) obligations of a person controlled or
supervised by and acting as an agency or instrumentality of the United States of
America the payment of which is unconditionally guaranteed as a full faith and
credit obligation by the United States of America, and which in the case of (i)
and (ii) are not callable or redeemable at the option of the issuer thereof, and
shall also include a depository receipt issued by a bank or trust company as
custodian with respect to any such U.S. Government Obligation or a specific
payment of interest on or principal of any such U.S. Government Obligation held
by such custodian for the account of the holder of a depository receipt,
provided that (except as required 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 the U.S.
Government Obligation evidenced by such depository receipt.

      Section 1.2 Other Definitions.

                   DEFINED IN SECTION           TERM
                   ------------------           ----
         "Bankruptcy Law"                        7.1
         "Custodian"                             7.1
         "Event of Default"                      7.1
         "Journal"                               11.15
         "Judgment Currency"                     11.16
         "Legal Holiday"                         11.7
         "mandatory sinking fund payment"        12.1


                                      -5-
<PAGE>

         "Market Exchange Rate"                  11.15
         "New York Banking Day"                  11.16
         "optional sinking fund payment"         12.1
         "Paying Agent"                          2.4
         "Registrar"                             2.4
         "Service Agent"                         2.4
         "successor person"                      6.1

      Section 1.3 Incorporation by Reference of Trust Indenture Act

      Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture. The following
TIA terms used in this Indenture have the following meanings:

            "Commission" means the SEC.

            "indenture securities" means the Securities.

            "indenture security holder" means a Securityholder.

            "indenture to be qualified" means this Indenture.

            "indenture trustee" or "institutional trustee" means the Trustee.

            "obligor" on the Securities means the Company and any successor
      obligor upon the Securities.

      All other terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule under the TIA
and not otherwise defined herein are used herein as so defined.

      Section 1.4 Rules of Construction.

      Unless the context otherwise requires:

            (a) a term has the meaning assigned to it;

            (b) an accounting term not otherwise defined has the meaning
      assigned to it in accordance with generally accepted accounting
      principles;

            (c) references to "generally accepted accounting principles" shall
      mean generally accepted accounting principles in effect as of the time
      when and for the period as to which such accounting principles are to be
      applied;

            (d) "or" is not exclusive;


                                      -6-
<PAGE>

            (e) words in the singular include the plural, and in the plural
      include the singular; and

            (f) provisions apply to successive events and transactions.

                                   ARTICLE II.

                                 THE SECURITIES

      Section 2.1 Issuable in Series.

      The aggregate principal amount of Securities that may be authenticated and
delivered under this Indenture is unlimited. The Securities may be issued in one
or more Series. All Securities of a Series shall be identical except as may be
set forth in a Board Resolution, a supplemental indenture or an Officers'
Certificate detailing the adoption of the terms thereof pursuant to the
authority granted under a Board Resolution. In the case of Securities of a
Series to be issued from time to time, the Board Resolution, Officers'
Certificate or supplemental indenture may provide for the method by which
specified terms (such as interest rate, maturity date, record date or date from
which interest shall accrue) are to be determined. Securities may differ between
Series in respect of any matters, provided that all Series of Securities shall
be equally and ratably entitled to the benefits of the Indenture.

      Section 2.2 Establishment of Terms of Series of Securities.

      At or prior to the issuance of any Securities within a Series, the
following shall be established (as to the Series generally, in the case of
Subsection 2.2.1 and either as to such Securities within the Series or as to the
Series generally in the case of Subsections 2.2.2 through 2.2.19) by a Board
Resolution, a supplemental indenture or an Officers' Certificate pursuant to
authority granted under a Board Resolution:

            2.2.1 the title of the Series (which shall distinguish the
Securities of that particular Series from the Securities of any other Series);

            2.2.2 the price or prices (expressed as a percentage of the
principal amount thereof) at which the Securities of the Series will be issued;

            2.2.3 any limit upon the aggregate principal amount of the
Securities of the Series which may be authenticated and delivered under this
Indenture (except for Securities authenticated and delivered upon registration
of transfer of, or in exchange for, or in lieu of, other Securities of the
Series pursuant to Section 2.7, 2.8, 2.11, 3.6 or 10.6);

            2.2.4 the date or dates on which the principal of the Securities of
the Series is payable;

            2.2.5 the rate or rates (which may be fixed or variable) per annum
or, if applicable, the method used to determine such rate or rates (including,
but not limited to, any commodity, commodity index, stock exchange index or
financial index) at which the Securities of the Series shall bear interest, if
any,


                                      -7-
<PAGE>

the date or dates from which such interest, if any, shall accrue, the date or
dates on which such interest, if any, shall commence and be payable and any
regular record date for the interest payable on any interest payment date;

            2.2.6 the place or places where the principal of and interest, if
any, on the Securities of the Series shall be payable, or the method of such
payment, if by wire transfer, mail or other means;

            2.2.7 if applicable, the period or periods within which, the price
or prices at which and the terms and conditions upon which the Securities of the
Series may be redeemed, in whole or in part, at the option of the Company;

            2.2.8 the obligation, if any, of the Company to redeem or purchase
the Securities of the Series pursuant to any sinking fund or analogous
provisions or at the option of a Holder thereof and the period or periods within
which, the price or prices at which and the terms and conditions upon which
Securities of the Series shall be redeemed or purchased, in whole or in part,
pursuant to such obligation;

            2.2.9 the dates, if any, on which and the price or prices at which
the Securities of the Series will be repurchased by the Company at the option of
the Holders thereof and other detailed terms and provisions of such repurchase
obligations;

            2.2.10 if other than denominations of $1,000 and any integral
multiple thereof, the denominations in which the Securities of the Series shall
be issuable;

            2.2.11 whether the Securities will be issuable as Global Securities;

            2.2.12 if other than the principal amount thereof, the portion of
the principal amount of the Securities of the Series that shall be payable upon
declaration of acceleration of the maturity thereof pursuant to Section 7.2;

            2.2.13 the manner in which the amounts of payment of principal of or
interest, if any, on the Securities of the Series will be determined, if such
amounts may be determined by reference to an index based on a currency or
currencies or by reference to a commodity, commodity index, stock exchange index
or financial index;

            2.2.14 any addition to or change in the Events of Default which
applies to any Securities of the Series and any change in the right of the
Trustee or the requisite Holders of such Securities to declare the principal
amount thereof due and payable pursuant to Section 7.2;

            2.2.15 any addition to or change in the covenants set forth in
Articles V or VI which applies to Securities of the Series;


                                      -8-
<PAGE>

            2.2.16 any other terms of the Securities of the Series (which terms
shall not be inconsistent with the provisions of this Indenture, except as
permitted by Section 10.1, but which may modify or delete any provision of this
Indenture insofar as it applies to such Series);

            2.2.17 any depositories, interest rate calculation agents, or other
agents with respect to Securities of such Series if other than those appointed
herein;

            2.2.18 the form and terms of any guarantees of the Securities and
the terms and conditions, if any, upon which any guarantees thereof shall be
subordinated in right of payment to other indebtedness of the Company or any
guarantor; and

            2.2.19 if and as applicable, the terms of any right to exchange for
or convert Securities of the Series into shares of common stock of the Company
or other securities or property.

      All Securities of any one Series need not be issued at the same time and
may be issued from time to time, consistent with the terms of this Indenture, if
so provided by or pursuant to the Board Resolution, supplemental indenture or
Officers' Certificate referred to above, and the authorized principal amount of
any Series may not be increased to provide for issuances of additional
Securities of such Series, unless otherwise provided in such Board Resolution,
supplemental indenture or Officers' Certificate.

      The Securities of each Series shall be in substantially the form set forth
in Exhibit A to this Indenture, or in such other form as shall be established by
or pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture, and may
have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistent herewith, be determined by the
officers executing such Securities, as evidenced by their execution of the
Securities. If the form of Securities of any Series is established by action
taken pursuant to a Board Resolution, a copy of an appropriate record of such
action shall be certified by the Corporate Secretary or an Assistant Corporate
Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Company Order contemplated by Section 2.3 for the authentication
and delivery of such Securities.

      The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the Officers executing such Securities, as evidenced by their execution of
such Securities.

      Section 2.3 Execution and Authentication.

      Two Officers shall sign the Securities for the Company by manual or
facsimile signature.


                                      -9-
<PAGE>

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

      A Security shall not be valid until authenticated by the manual signature
of the Trustee or an authenticating agent. The signature shall be conclusive
evidence that the Security has been authenticated under this Indenture.

      The Trustee shall at any time, and from time to time, authenticate
Securities for original issue in the principal amount provided in the Board
Resolution, supplemental indenture hereto or Officers' Certificate, upon receipt
by the Trustee of a Company Order. Such Company Order may authorize
authentication and delivery pursuant to oral or electronic instructions from the
Company or its duly authorized agent or agents, which oral instructions shall be
promptly confirmed in writing. Each Security shall be dated the date of its
authentication unless otherwise provided by a Board Resolution, a supplemental
indenture hereto or an Officers' Certificate.

      The aggregate principal amount of Securities of any Series outstanding at
any time may not exceed any limit upon the maximum principal amount for such
Series set forth in the Board Resolution, supplemental indenture hereto or
Officers' Certificate delivered pursuant to Section 2.2, except as provided in
Section 2.8.

      Prior to the issuance of Securities of any Series, the Trustee shall have
received and (subject to Section 8.2) shall be fully protected in relying on:
(a) the Board Resolution, supplemental indenture hereto or Officers' Certificate
establishing the form of the Securities of that Series or of Securities within
that Series and the terms of the Securities of that Series or of Securities
within that Series, (b) an Officers' Certificate complying with Section 11.4,
and (c) an Opinion of Counsel complying with Section 11.4.

      The Trustee shall have the right to decline to authenticate and deliver
any Securities of such Series: (a) if the Trustee, being advised by counsel,
determines that such action may not lawfully be taken; or (b) if the Trustee in
good faith by its board of directors or trustees, executive committee or a trust
committee of directors and/or vice-presidents shall determine that such action
would expose the Trustee to personal liability to Holders of any then
outstanding Series of Securities.

      The Trustee may appoint an authenticating agent acceptable to the Company
to authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company or
an Affiliate.

      Section 2.4 Registrar and Paying Agent.

      The Company shall maintain, with respect to each Series of Securities, at
the place or places specified with respect to such Series pursuant to Section
2.2, an office or agency where Securities of such Series may be presented or
surrendered for payment ("Paying Agent"), 


                                      -10-
<PAGE>

where Securities of such Series may be surrendered for registration of transfer
or exchange ("Registrar") and where notices and demands to or upon the Company
in respect of the Securities of such Series and this Indenture may be served
("Service Agent"). The Registrar shall keep a register with respect to each
Series of Securities and to their transfer and exchange. The Company will give
prompt written notice to the Trustee of the name and address, and any change in
the name or address, of each Registrar, Paying Agent or Service Agent. If at any
time the Company shall fail to maintain any such required Registrar, Paying
Agent or Service Agent or shall fail to furnish the Trustee with the name and
address thereof, such presentations, surrenders, notices and demands may be made
or served at the Corporate Trust Office of the Trustee, and the Company hereby
appoints the Trustee as its agent to receive all such presentations, surrenders,
notices and demands.

      The Company may also from time to time designate one or more
co-registrars, additional paying agents or additional service agents and may
from time to time rescind such designations; provided, however, that no such
designation or rescission shall in any manner relieve the Company of its
obligations to maintain a Registrar, Paying Agent and Service Agent in each
place so specified pursuant to Section 2.2 for Securities of any Series for such
purposes. The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the name or address of any such
co-registrar, additional paying agent or additional service agent. The term
"Registrar" includes any co-registrar; the term "Paying Agent" includes any
additional paying agent; and the term "Service Agent" includes any additional
service agent.

      The Company hereby appoints the Trustee the initial Registrar, Paying
Agent and Service Agent for each Series unless another Registrar, Paying Agent
or Service Agent, as the case may be, is appointed prior to the time Securities
of that Series are first issued.

      Section 2.5 Paying Agent to Hold Money in Trust.

      The Company shall require each Paying Agent other than the Trustee to
agree in writing that the Paying Agent will hold in trust, for the benefit of
Securityholders of any Series of Securities, or the Trustee, all money held by
the Paying Agent for the payment of principal of or interest on the Series of
Securities, and will notify the Trustee of any default by the Company in making
any such payment. While any such default continues, the Trustee may require a
Paying Agent to pay all money held by it to the Trustee.

      The Company at any time may require a Paying Agent to pay all money held
by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if
other than the Company or a Subsidiary) shall have no further liability for the
money. If the Company or a Subsidiary acts as Paying Agent, it shall segregate
and hold in a separate trust fund for the benefit of Securityholders of any
Series of Securities all money held by it as Paying Agent.

      Section 2.6 Securityholder Lists.

      The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Securityholders of each Series of 


                                      -11-
<PAGE>

Securities and shall otherwise comply with TIA ss. 312(a). If the Trustee is not
the Registrar, the Company shall furnish to the Trustee at least ten days before
each interest payment date and at such other times as the Trustee may request in
writing a list, in such form and as of such date as the Trustee may reasonably
require, of the names and addresses of Securityholders of each Series of
Securities.

      Section 2.7 Transfer and Exchange.

      Where Securities of a Series are presented to the Registrar or a
co-registrar with a request to register a transfer or to exchange them for an
equal principal amount of Securities of the same Series, the Registrar shall
register the transfer or make the exchange if its requirements for such
transactions are met. To permit registrations of transfers and exchanges, the
Trustee shall authenticate Securities at the Registrar's request. No service
charge shall be made for any registration of transfer or exchange (except as
otherwise expressly permitted herein), but the Company may require payment of a
sum sufficient to cover any transfer tax or similar governmental charge payable
in connection therewith (other than any such transfer tax or similar
governmental charge payable upon exchanges pursuant to Sections 2.11, 3.6 or
10.6).

      Neither the Company nor the Registrar shall be required (a) to issue,
register the transfer of, or exchange Securities of any Series for the period
beginning at the opening of business fifteen days immediately preceding the
mailing of a notice of redemption of Securities of that Series selected for
redemption and ending at the close of business on the day of such mailing, or
(b) to register the transfer of or exchange Securities of any Series selected,
called or being called for redemption as a whole or the portion being redeemed
of any such Securities selected, called or being called for redemption in part.

      Section 2.8 Mutilated, Destroyed, Lost and Stolen Securities.

      If any mutilated Security is surrendered to the Trustee, the Company shall
execute and the Trustee shall authenticate and deliver in exchange therefor a
new Security of the same Series and of like tenor and principal amount and
bearing a number not contemporaneously outstanding.

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

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


                                      -12-
<PAGE>

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

      Every new Security of any Series issued pursuant to this Section in lieu
of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that Series duly issued hereunder.

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

      Section 2.9 Outstanding Securities.

      The Securities outstanding at any time are all the Securities
authenticated by the Trustee except for those canceled by it, those delivered to
it for cancellation, those reductions in the interest on a Global Security
effected by the Trustee in accordance with the provisions hereof and those
described in this Section as not outstanding.

      If a Security is replaced pursuant to Section 2.8, it ceases to be
outstanding until the Trustee receives proof satisfactory to it that the
replaced Security is held by a bona fide purchaser.

      If the Paying Agent (other than the Company, a Subsidiary or an Affiliate
of any thereof) holds on the Maturity of Securities of a Series money sufficient
to pay such Securities payable on that date, then on and after that date such
Securities of the Series cease to be outstanding and interest on them ceases to
accrue.

      A Security does not cease to be outstanding because the Company or an
Affiliate holds the Security.

      In determining whether the Holders of the requisite principal amount of
outstanding Securities have given any request, demand, authorization, direction,
notice, consent or waiver hereunder, the principal amount of a Discount Security
that shall be deemed to be outstanding for such purposes shall be the amount of
the principal thereof that would be due and payable as of the date of such
determination upon a declaration of acceleration of the Maturity thereof
pursuant to Section 7.2.

      Section 2.10 Treasury Securities.

      In determining whether the Holders of the required principal amount of
Securities of a Series have concurred in any request, demand, authorization,
direction, notice, consent or waiver Securities of a Series owned by the Company
or an Affiliate shall be disregarded, except that for the purposes of
determining whether the Trustee shall be 


                                      -13-
<PAGE>

protected in relying on any such request, demand, authorization, direction,
notice, consent or waiver only Securities of a Series that the Trustee knows are
so owned shall be so disregarded.

      Section 2.11  Temporary Securities.

      Until definitive Securities are ready for delivery, the Company may
prepare and the Trustee shall authenticate temporary Securities upon a Company
Order. Temporary Securities shall be substantially in the form of definitive
Securities but may have variations that the Company considers appropriate for
temporary Securities. Without unreasonable delay, the Company shall prepare and
the Trustee upon request shall authenticate definitive Securities of the same
Series and date of maturity in exchange for temporary Securities. Until so
exchanged, temporary securities shall have the same rights under this Indenture
as the definitive Securities.

      Section 2.12 Cancellation.

      The Company at any time may deliver Securities to the Trustee for
cancellation. The Registrar and the Paying Agent shall forward to the Trustee
any Securities surrendered to them for registration of transfer, exchange or
payment. The Trustee shall cancel all Securities surrendered for transfer,
exchange, payment, replacement or cancellation and shall destroy such canceled
Securities (subject to the record retention requirement of the Exchange Act) and
deliver a certificate of such destruction to the Company, unless the Company
otherwise directs. The Company may not issue new Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation.

      Section 2.13  Defaulted Interest.

      If the Company defaults in a payment of interest on a Series of
Securities, it shall pay the defaulted interest, plus, to the extent permitted
by law, any interest payable on the defaulted interest, to the persons who are
Securityholders of the Series on a subsequent special record date. The Company
shall fix the record date and payment date. At least 30 days before the record
date, the Company shall mail to the Trustee and to each Securityholder of the
Series a notice that states the record date, the payment date and the amount of
interest to be paid. The Company may pay defaulted interest in any other lawful
manner.

      Section 2.14  Global Securities.

            2.14.1 Terms of Securities. A Board Resolution, a supplemental
indenture hereto or an Officers' Certificate shall establish whether the
Securities of a Series shall be issued in whole or in part in the form of one or
more Global Securities and the Depository for such Global Security or
Securities.

            2.14.2 Transfer and Exchange. Notwithstanding any provisions to the
contrary contained in Section 2.7 of the Indenture and in addition thereto, any
Global Security shall be exchangeable pursuant to Section 2.7 of the Indenture
for Securities registered in the names of Holders other than the Depository for
such Security or its nominee only if (i) such 


                                      -14-
<PAGE>

Depository notifies the Company that it is unwilling or unable to continue as
Depository for such Global Security or if at any time such Depository ceases to
be a clearing agency registered under the Exchange Act, and, in either case, the
Company fails to appoint a successor Depository within 90 days of such event,
(ii) the Company executes and delivers to the Trustee an Officers' Certificate
to the effect that such Global Security shall be so exchangeable or (iii) an
Event of Default with respect to the Securities represented by such Global
Security shall have happened and be continuing. Any Global Security that is
exchangeable pursuant to the preceding sentence shall be exchangeable for
Securities registered in such names as the Depository shall direct in writing in
an aggregate principal amount equal to the principal amount of the Global
Security with like tenor and terms.

            Except as provided in this Section 2.14.2, a Global Security may not
be transferred except as a whole by the Depository with respect to such Global
Security to a nominee of such Depository, by a nominee of such Depository to
such Depository or another nominee of such Depository or by the Depository or
any such nominee to a successor Depository or a nominee of such a successor
Depository.

            2.14.3 Legend. Any Global Security issued hereunder shall bear a
legend in substantially the following form:

            "This Security is a Global Security within the meaning of the
      Indenture hereinafter referred to and is registered in the name of the
      Depository or a nominee of the Depository. This Security is exchangeable
      for Securities registered in the name of a person other than the
      Depository or its nominee only in the limited circumstances described in
      the Indenture, and may not be transferred except as a whole by the
      Depository to a nominee of the Depository, 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 a successor Depository."

            2.14.4 Acts of Holders. The Depository, as a Holder, may appoint
agents and otherwise authorize participants to give or take any request, demand,
authorization, direction, notice, consent, waiver or other action which a Holder
is entitled to give or take under the Indenture.

            2.14.5 Payments. Notwithstanding the other provisions of this
Indenture, unless otherwise specified as contemplated by Section 2.2, payment of
the principal of and interest, if any, on any Global Security shall be made to
the Holder thereof.

            2.14.6 Consents, Declaration and Directions. Except as provided in
Section 2.14.5, the Company, the Trustee and any Agent shall treat a person as
the Holder of such principal amount of outstanding Securities of such Series
represented by a Global Security as shall be specified in a written statement of
the Depository with respect to such Global Security, for purposes of obtaining
any consents, declarations, waivers or directions required to be given by the
Holders pursuant to this Indenture.


                                      -15-
<PAGE>

      Section 2.15  CUSIP Numbers.

      The Company in issuing the Securities 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 Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other elements of
identification printed on the Securities, and any such redemption shall not be
affected by any defect in or omission of such numbers.

                                  ARTICLE III.

                                   REDEMPTION

      Section 3.1 Notice to Trustee.

      The Company may, with respect to any Series of Securities, reserve the
right to redeem and pay the Series of Securities or may covenant to redeem and
pay the Series of Securities or any part thereof prior to the Stated Maturity
thereof at such time and on such terms as provided for in such Securities. If a
Series of Securities is redeemable and the Company wants or is obligated to
redeem prior to the Stated Maturity thereof all or part of the Series of
Securities pursuant to the terms of such Securities, it shall notify the Trustee
of the redemption date and the principal amount of Series of Securities to be
redeemed. The Company shall give the notice at least 45 days before the
redemption date (or such shorter notice as may be acceptable to the Trustee).

      Section 3.2 Selection of Securities to be Redeemed.

      Unless otherwise indicated for a particular Series by a Board Resolution,
a supplemental indenture or an Officers' Certificate, if less than all the
Securities of a Series are to be redeemed, the Trustee shall select the
Securities of the Series to be redeemed in any manner that the Trustee deems
fair and appropriate. The Trustee shall make the selection from Securities of
the Series outstanding not previously called for redemption. The Trustee may
select for redemption portions of the principal of Securities of the Series that
have denominations larger than $1,000. Securities of the Series and portions of
them it selects shall be in amounts of $1,000 or whole multiples of $1,000 or,
with respect to Securities of any Series issuable in other denominations
pursuant to Section 2.2.10, the minimum principal denomination for each Series
and integral multiples thereof. Provisions of this Indenture that apply to
Securities of a Series called for redemption also apply to portions of
Securities of that Series called for redemption.

      Section 3.3 Notice of Redemption.

      Unless otherwise indicated for a particular Series by Board Resolution, a
supplemental indenture hereto or an Officers' Certificate, at least 30 days but
not more than 60 


                                      -16-
<PAGE>

days before a redemption date, the Company shall mail a notice of redemption by
first-class mail to each Holder whose Securities are to be redeemed.

      The notice shall identify the Securities of the Series to be redeemed and
shall state:

            (a) the redemption date;

            (b) the redemption price;

            (c) the name and address of the Paying Agent;

            (d) that Securities of the Series called for redemption must be
      surrendered to the Paying Agent to collect the redemption price;

            (e) that interest on Securities of the Series called for redemption
      ceases to accrue on and after the redemption date; and

            (f) any other information as may be required by the terms of the
      particular Series or the Securities of a Series being redeemed.

      At the Company's request, the Trustee shall give the notice of redemption
in the Company's name and at its expense.

      Section 3.4 Effect of Notice of Redemption.

      Once notice of redemption is mailed as provided in Section 3.3, Securities
of a Series called for redemption become due and payable on the redemption date
and at the redemption price. A notice of redemption may not be conditional. Upon
surrender to the Paying Agent, such Securities shall be paid at the redemption
price plus accrued interest to the redemption date.

      Section 3.5 Deposit of Redemption Price.

      On or before the redemption date, the Company shall deposit with the
Paying Agent money sufficient to pay the redemption price of and accrued
interest, if any, on all Securities to be redeemed on that date.

      Section 3.6 Securities Redeemed in Part.

      Upon surrender of a Security that is redeemed in part, the Trustee shall
      authenticate for the Holder a new Security of the same Series and the same
maturity equal in principal amount to the unredeemed portion of the Security
surrendered.


                                      -17-
<PAGE>

                                   ARTICLE IV.

                           SUBORDINATION OF SECURITIES

      Section 4.1 Agreement of Subordination. The Company covenants and agrees,
and each holder of Securities issued hereunder by his acceptance thereof
likewise covenants and agrees, that all Securities shall be issued subject to
the provisions of this Article IV; and each person holding any Security, whether
upon original issue or upon transfer or assignment thereof, accepts and agrees
to be bound by such provisions.

      The payment of the principal of, premium, if any, and interest on all
Securities issued hereunder shall, to the extent and in the manner hereinafter
set forth, be subordinated and subject in right of payment to the prior payment
in full of all Senior Indebtedness, whether outstanding at the date of this
Indenture or thereafter incurred.

      No provision of this Article IV shall prevent the occurrence of any
default or Event of Default hereunder.

      Section 4.2 Payments to Securityholders. In the event and during the
continuation of any default in the payment of principal, premium, interest or
any other payment due on any Senior Indebtedness continuing beyond the period of
grace, if any, specified in the instrument or lease evidencing such Senior
Indebtedness, then, unless and until such default shall have been cured or
waived or shall have ceased to exist, no payment shall be made by the Company
with respect to the principal of, or premium, if any, or interest on the
Securities, except payments made pursuant to Article IX hereof from monies
deposited with the Trustee pursuant thereto prior to the happening of such
default.

      Upon any payment by the Company, or distribution of assets of the Company
of any kind or character, whether in cash, property or securities, to creditors
upon any dissolution or winding-up or liquidation or reorganization of the
Company, whether voluntary or involuntary or in bankruptcy, insolvency,
receivership or other proceedings, all amounts due or to become due upon all
Senior Indebtedness shall first be paid in full, or payment thereof provided for
in money in accordance with its terms, before any payment is made on account of
the principal (and premium, if any) or interest on the Securities (except
payments made pursuant to Article IX hereof from monies deposited with the
Trustee pursuant thereto prior to the happening of such dissolution, winding-up,
liquidation or reorganization); and upon any such dissolution or winding-up or
liquidation or reorganization any payment by the Company, or distribution of
assets of the Company of any kind or character, whether in cash, property or
securities, to which the holders of the Securities or the Trustee would be
entitled, except for the provisions of this Article IV, shall (except as
aforesaid) be paid by the Company or by any receiver, trustee in bankruptcy,
liquidating trustee, agent or other Person making such payment or distribution,
or by the holders of the Securities or by the Trustee under this Indenture if
received by them or it, directly to the holders of Senior Indebtedness (pro rata
to such holders on the basis of the respective amounts of Senior Indebtedness
held by such holders, as calculated by the Company) or their representative or
representatives, or to the trustee or trustees under any 


                                      -18-
<PAGE>

indenture pursuant to which any instruments evidencing any Senior Indebtedness
may have been issued, as their respective interests may appear, to the extent
necessary to pay all Senior Indebtedness in full, in money or money's worth,
after giving effect to any concurrent payment or distribution to or for the
holders of Senior Indebtedness, before any payment or distribution is made to
the holders of the Securities or to the Trustee. By reason of such
subordination, in the event of the Company's dissolution, holders of Senior
Indebtedness may receive more, ratably, and holders of the Securities may
receive less, ratably, than the other creditors of the Company.

      In the event that, notwithstanding the foregoing, any payment or
distribution of assets of the Company of any kind or character, whether in cash,
property or securities, prohibited by the foregoing, shall be received by the
Trustee or the holders of the Securities before all Senior Indebtedness is paid
in full, or provision is made for such payment in money in accordance with its
terms, such payment or distribution shall be held in trust for the benefit of
and shall be paid over or delivered to the holders of Senior Indebtedness or
their representative or representatives, or to the trustee or trustees under any
indenture pursuant to which any instruments evidencing any Senior Indebtedness
may have been issued, as their respective interests may appear, as calculated by
the Company, for application to the payment of all Senior Indebtedness remaining
unpaid to the extent necessary to pay all Senior Indebtedness in full in money
in accordance with its terms, after giving effect to any concurrent payment or
distribution to or for the holders of such Senior Indebtedness.

      For purposes of this Article IV, the words, "cash, property or securities"
shall not be deemed to include shares of stock of the Company as reorganized or
readjusted, or securities of the Company or any other corporation provided for
by a plan of reorganization or readjustment, the payment of which is
subordinated at least to the extent provided in this Article IV with respect to
the Securities to the payment of all Senior Indebtedness which may at the time
be outstanding; provided that (i) the Senior Indebtedness is assumed by the new
corporation, if any, resulting from any such reorganization or readjustment, and
(ii) the rights of the holders of the Senior Indebtedness (other than leases)
and of leases which are assumed are not, without the consent of such holders,
altered by such reorganization or readjustment. The consolidation of the Company
with, or the merger of the Company into, another corporation or the liquidation
or dissolution of the Company following the conveyance or transfer of its
property as an entirety, or substantially as an entirety, to another corporation
upon the terms and conditions provided for in Article VI hereof shall not be
deemed a dissolution, winding-up, liquidation or reorganization for the purposes
of this Section 4.2 if such other corporation shall, as a part of such
consolidation, merger, conveyance or transfer, comply with the conditions stated
in Article VI hereof. Nothing in this Section 4.2 shall apply to claims of, or
payments to, the Trustee under or pursuant to Section 8.7.

      Section 4.3 Subrogation of Securities. Subject to the payment in full of
all Senior Indebtedness, the rights of the holders of the Securities shall be
subrogated to the rights of the holders of Senior Indebtedness to receive
payments or distributions of cash, property or securities of the Company
applicable to the Senior Indebtedness until the principal of (and premium, if
any) and interest on the Securities shall be paid in full; and, for the purposes
of such subrogation, no payments or distributions to the holders of the Senior
Indebtedness of any cash, 


                                      -19-
<PAGE>

property or securities to which the holders of the Securities or the Trustee
would be entitled except for the provisions of this Article IV, and no payment
over pursuant to the provisions of this Article IV, to or for the benefit of the
holders of Senior Indebtedness by holders of the Securities or the Trustee,
shall, as between the Company, its creditors other than holders of Senior
Indebtedness, and the holders of the Securities, be deemed to be a payment by
the Company to or on account of the Senior Indebtedness. It is understood that
the provisions of this Article IV are and are intended solely for the purpose of
defining the relative rights of the holders of the Securities, on the one hand,
and the holders of the Senior Indebtedness, on the other hand.

      Nothing contained in this Article IV or elsewhere in this Indenture or in
the Securities is intended to or shall impair, as between the Company, its
creditors other than the holders of Senior Indebtedness, and the holders of the
Securities, the obligation of the Company, which is absolute and unconditional,
to pay to the holders of the Securities the principal of (and premium, if any)
and interest on the Securities as and when the same shall become due and payable
in accordance with their terms, or is intended to or shall affect the relative
rights of the holders of the Securities and creditors of the Company other than
the holders of the Senior Indebtedness, nor shall anything herein or therein
prevent the Trustee or the holder of any Security from exercising all remedies
otherwise permitted by applicable law upon default under this Indenture, subject
to the rights, if any, under this Article IV of the holders of Senior
Indebtedness in respect of cash, property or securities of the Company received
upon the exercise of any such remedy.

      Upon any payment or distribution of assets of the Company referred to in
this Article IV, the Trustee, subject to the provisions of Section 8.1, and the
holders of the Securities shall be entitled to rely upon any order or decree
made by any court of competent jurisdiction in which such dissolution,
winding-up, liquidation or reorganization proceedings are pending, or a
certificate of the receiver, trustee in bankruptcy, liquidating trustee, agent
or other Person making such payment or distribution, delivered to the Trustee or
to the holders of the Securities, for the purpose of ascertaining the Persons
entitled to participate in such distribution, the holders of the Senior
Indebtedness and other indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all other
facts pertinent thereto or to this Article IV.

      Section 4.4 Authorization by Securityholders. Each holder of a Security by
his acceptance thereof authorizes and directs the Trustee in his behalf to take
such action as may be necessary or appropriate to effectuate the subordination
provided in this Article IV and appoints the Trustee his attorney-in-fact for
any and all such purposes.

      Section 4.5 Notice to Trustee. The Company shall give prompt written
notice to a Responsible Officer of the Trustee of any fact known to the Company
which would prohibit the making of any payment of monies to or by the Trustee in
respect of the Securities pursuant to the provisions of this Article IV.
Notwithstanding the provisions of this Article IV or any other provision of this
Indenture, the Trustee shall not be charged with knowledge of the existence of
any facts which would prohibit the making of any payment of monies to or by the


                                      -20-
<PAGE>

Trustee in respect of the Securities pursuant to the provisions of this Article
IV, unless and until a Responsible Officer of the Trustee shall have received
written notice thereof at the Principal Office of the Trustee from the Company
or a holder or holders of Senior Indebtedness or from any trustee therefor; and
before the receipt of any such written notice, the Trustee, subject to the
provisions of Section 8.1, shall be entitled in all respects to assume that no
such facts exist; provided that if on a date not fewer than three business days
prior to the date upon which by the terms hereof any such monies may become
payable for any purpose (including, without limitation, the payment of the
principal of (or premium, if any) or interest on any Security) the Trustee shall
not have received, with respect to such monies, the notice provided for in this
Section 4.5, then, anything herein contained to the contrary notwithstanding,
the Trustee shall have full power and authority to receive such monies and to
apply the same to the purpose for which they were received, and shall not be
affected by any notice to the contrary which may be received by it on or after
such prior date.

      Notwithstanding anything to the contrary herein set forth, nothing shall
prevent any payment by the Company or the Trustee to the Securityholders of
monies (A) in connection with a redemption of Securities if (i) notice of such
redemption has been given pursuant to Article III or Section 9.1 hereof prior to
the receipt by the Trustee of written notice as aforesaid, and (ii) such notice
of redemption is given not earlier than 60 days before the date fixed for
redemption.

      The Trustee, subject to the provisions of Section 8.1, shall be entitled
to rely on the delivery to it of a written notice by a person representing
himself to be a holder of Senior Indebtedness (or a trustee on behalf of such
holder) to establish that such notice has been given by a holder of Senior
Indebtedness or a trustee on behalf of any such holder or holders. In the event
that the Trustee determines in good faith that further evidence is required with
respect to the right of any person as a holder of Senior Indebtedness to
participate in any payment or distribution pursuant to this Article IV, the
Trustee may request such person to furnish evidence to the reasonable
satisfaction of the Trustee as to the amount of Senior Indebtedness held by such
person, the extent to which such person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such
person under this Article IV, and if such evidence is not furnished the Trustee
may defer any payment to such person pending judicial determination as to the
right of such person to receive such payment.

      Section 4.6. The Trustee in its individual capacity shall be entitled to
all the rights set forth in this Article IV in respect of any Senior
Indebtedness at any time held by it, to the same extent as any other holder of
Senior Indebtedness, and nothing or elsewhere in this Indenture shall deprive
the Trustee of any of its rights as such holder.

      With respect to the holders of Senior Indebtedness, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article IV, and no implied covenants or
obligations with respect to the holders of Senior Indebtedness shall be read
into this Indenture against the Trustee. The Trustee shall not be deemed to owe
any fiduciary duty to the holders of Senior Indebtedness and, subject to the


                                      -21-
<PAGE>

provisions of Section 8.1, the Trustee shall not be liable to any holder of
Senior Indebtedness if it shall pay over or deliver to holders of Securities,
the Company or any other person money or assets to which any holder of Senior
Indebtedness shall be entitled by virtue of this Article IV or otherwise.

      Section 4.7 No Impairment of Subordination. No right of any present or
future holder of any Senior Indebtedness to enforce subordination as herein
provided shall at any time in any way be prejudiced or impaired by any act or
failure to act on the part of the Company or by any act or failure to act, in
good faith, by any such holder, or by any noncompliance by the Company with the
terms, provisions and covenants of this Indenture, regardless of any knowledge
thereof which any such holder may have or otherwise be charged with.

      Section 4.8 Certain Conversions Deemed Payment. For the purposes of this
Article IV only, (1) the issuance and delivery of junior securities upon any
conversion of Securities shall not be deemed to constitute a payment or
distribution on account of the principal of (or premium, if any) or interest on
Securities or on account of the purchase or other acquisition of Securities, and
(2) the payment, issuance or delivery of cash (except in satisfaction of
fractional shares), property or securities (other than junior securities) upon
conversion of a Security shall be deemed to constitute payment on account of the
principal of such Security. For the purposes of this Section 4.8, the term
"junior securities" means (a) shares of any stock of any class of the Company,
or (b) securities of the Company which are subordinated in right of payment to
all Senior Indebtedness which may be outstanding at the time of issuance or
delivery of such securities to substantially the same extent as, or to a greater
extent than, the Securities are so subordinated as provided in this Article.

      Section 4.9 Senior Indebtedness Entitled to Rely. The holders of Senior
Indebtedness shall have the right to rely upon this Article IV, and no amendment
or modification of the provisions contained herein shall diminish the rights of
such holders unless such holders shall have agreed in writing thereto.

                                   ARTICLE V.

                                    COVENANTS

      Section 5.1 Payment of Principal and Interest

      The Company covenants and agrees for the benefit of the Holders of each
Series of Securities that it will duly and punctually pay the principal of and
interest, if any, on the Securities of that Series in accordance with the terms
of such Securities and this Indenture.

      Section 5.2 SEC Reports

      The Company shall deliver to the Trustee within 15 days after it files
them with the SEC copies of the annual reports and of the information,
documents, and other reports (or copies of such portions of any of the foregoing
as the SEC may by rules and regulations 


                                      -22-
<PAGE>

prescribe) which the Company is required to file with the SEC pursuant to
Section 13 or 15(d) of the Exchange Act. The Company also shall comply with the
other provisions of TIA ss. 314(a).

      Section 5.3 Compliance Certificate.

      The Company shall deliver to the Trustee, within 90 days after the end of
each fiscal year of the Company, an Officers' Certificate stating that a review
of the activities of the Company and its Subsidiaries during the preceding
fiscal year has been made under the supervision of the signing Officers with a
view to determining whether the Company has kept, observed, performed and
fulfilled its obligations under this Indenture, and further stating, as to each
such Officer signing such certificate, that to the best of his knowledge the
Company has kept, observed, performed and fulfilled each and every covenant
contained in this Indenture and is not in default in the performance or
observance of any of the terms, provisions and conditions hereof (or, if a
Default or Event of Default shall have occurred, describing all such Defaults or
Events of Default of which he may have knowledge).

      The Company will, so long as any of the Securities are outstanding,
deliver to the Trustee, forthwith upon becoming aware of any Default or Event of
Default, an Officers' Certificate specifying such Default or Event of Default
and what action the Company is taking or proposes to take with respect thereto.

      Section 5.4 Stay, Extension and Usury Laws.

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

      Section 5.5 Corporate Existence.

      Subject to Article VI, the Company will do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate existence
and the corporate, partnership or other existence of each Significant Subsidiary
in accordance with the respective organizational documents of each Significant
Subsidiary and the rights (charter and statutory), licenses and franchises of
the Company and its Significant Subsidiaries; provided, however, that the
Company shall not be required to preserve any such right, license or franchise,
or the corporate, partnership or other existence of any Significant Subsidiary,
if the Board of Directors shall determine that the preservation thereof is no
longer desirable in the conduct of the business of the Company and its
Subsidiaries taken as a whole and that the loss thereof is not adverse in any
material respect to the Holders.


                                      -23-
<PAGE>

      Section 5.6 Taxes.

      The Company shall, and shall cause each of its Significant Subsidiaries
to, pay prior to delinquency all taxes, assessments and governmental levies,
except as contested in good faith and by appropriate proceedings.

                                   ARTICLE VI.

                                   SUCCESSORS

      Section 6.1 When Company May Merge, Etc.

      The Company shall not consolidate with or merge into, or convey, transfer
or lease all or substantially all of its properties and assets to, any person (a
"successor person"), and may not permit any person to merge into, or convey,
transfer or lease its properties and assets substantially as an entirety to, the
Company, unless:

            (a) the successor person (if any) is a corporation, partnership,
      trust or other entity organized and validly existing under the laws of any
      U.S. domestic jurisdiction and expressly assumes the Company's obligations
      on the Securities and under this Indenture and

            (b) immediately after giving effect to the transaction, no Default
      or Event of Default, shall have occurred and be continuing.

      The Company shall deliver to the Trustee prior to the consummation of the
proposed transaction an Officers' Certificate to the foregoing effect and an
Opinion of Counsel stating that the proposed transaction and such supplemental
indenture comply with this Indenture.

      Section 6.2 Successor Corporation Substituted.

      Upon any consolidation or merger, or any sale, lease, conveyance or other
disposition of all or substantially all of the assets of the Company in
accordance with Section 6.1, the successor corporation formed by such
consolidation or into or with which the Company is merged or to which such sale,
lease, conveyance or other disposition is made shall succeed to, and be
substituted for, and may exercise every right and power of, the Company under
this Indenture with the same effect as if such successor person has been named
as the Company herein; provided, however, that the predecessor Company in the
case of a sale, lease, conveyance or other disposition shall not be released
from the obligation to pay the principal of and interest, if any, on the
Securities.


                                      -24-
<PAGE>

                                  ARTICLE VII.

                              DEFAULTS AND REMEDIES

      Section 7.1 Events of Default.

      "Event of Default," wherever used herein with respect to Securities of any
Series, means any one of the following events, unless in the establishing Board
Resolution, supplemental indenture or Officers' Certificate, it is provided that
such Series shall not have the benefit of said Event of Default:

            (a) default in the payment of any interest on any Security of that
      Series when it becomes due and payable, and continuance of such default
      for a period of 30 days (unless the entire amount of such payment is
      deposited by the Company with the Trustee or with a Paying Agent prior to
      the expiration of such period of 30 days), whether or not such payment is
      permitted under Article IV hereof; or

            (b) default in the payment of the principal, and premium if any, of
      any Security of that Series when such payment becomes due and payable, at
      its Maturity, upon redemption, by acceleration or otherwise, whether or
      not such payment is permitted under Article IV hereof; or

            (c) default in the deposit of any sinking fund payment, when as due
      in respect of any Security of that Series; or

            (d) default in the performance or breach of any covenant or warranty
      of the Company in this Indenture (other than a covenant or warranty that
      has been included in this Indenture solely for the benefit of Series of
      Securities other than that Series), which default continues uncured for a
      period of 45 days after there has been given, by registered or certified
      mail, to the Company by the Trustee or to the Company and the Trustee by
      the Holders of at least 25% in aggregate principal amount of the
      outstanding Securities of that Series a written notice specifying such
      default or breach and requiring it to be remedied and stating that such
      notice is a "Notice of Default" hereunder; or

            (e) the Company or any of its Significant Subsidiaries pursuant to
      or within the meaning of any Bankruptcy Law:

                  (i) commences a voluntary case,

                  (ii) consents to the entry of an order for relief against it
            in an involuntary case,

                  (iii) consents to the appointment of a Custodian of it or for
            all or substantially all of its property,


                                      -25-
<PAGE>

                  (iv) makes a general assignment for the benefit of its
            creditors, or

                  (v) generally is unable to pay its debts as the same become
            due; or

            (f) a court of competent jurisdiction enters an order or decree
      under any Bankruptcy Law that:

                  (i) is for relief against the Company or any of its
            Significant Subsidiaries in an involuntary case,

                  (ii) appoints a Custodian of the Company or any of its
            Significant Subsidiaries or for all or substantially all of its
            property, or

                  (iii) orders the liquidation of the Company or any of its
            Significant Subsidiaries, and the order or decree remains unstayed
            and in effect for 60 days; or

            (g) any other Event of Default provided with respect to Securities
      of that Series, which is specified in a Board Resolution, a supplemental
      indenture hereto or an Officers' Certificate, in accordance with Section
      2.2.14.

      The term "Bankruptcy Law" means Title 11, U.S. Code or any similar Federal
or State law for the relief of debtors. The term "Custodian" means any receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law.

      Section 7.2 Acceleration of Maturity; Rescission and Annulment.

      If an Event of Default with respect to Securities of any Series at the
time outstanding occurs and is continuing (other than an Event of Default as to
the Company referred to in Section 7.1(e) or (f)) then in every such case the
Trustee or the Holders of not less than 25% in aggregate principal amount of the
outstanding Securities of that Series may declare the principal amount (or, if
any Securities of that Series are Discount Securities, such portion of the
principal amount as may be specified in the terms of such Securities) of and
accrued and unpaid interest, if any, on all of the Securities of that Series to
be due and payable immediately, by a notice in writing to the Company (and to
the Trustee if given by Holders), and upon any such declaration such principal
amount (or specified amount) and accrued and unpaid interest, if any, shall
become immediately due and payable. If an Event of Default specified in Section
7.1(e) or (f) shall occur as to the Company, the principal amount (or specified
amount) of and accrued and unpaid interest, if any, on all outstanding
Securities shall ipso facto become and be immediately due and payable without
any declaration or other act on the part of the Trustee or any Holder.

      At any time after such a declaration of acceleration with respect to any
Series has been made and before a judgment or decree for payment of the money
due has been obtained by 


                                      -26-
<PAGE>

the Trustee as hereinafter in this Article provided, the Holders of a majority
in principal amount of the outstanding Securities of that Series, by written
notice to the Company and the Trustee, may rescind and annul such declaration
and its consequences if:

            (a) the Company has paid or deposited with the Trustee a sum
      sufficient to pay

                  (i) all overdue interest, if any, on all Securities that
            Series,

                  (ii) the principal of any Securities of that Series have
            become due otherwise than by such declaration of and interest
            thereon at the rate or rates therefor in such Securities,

                  (iii) to the extent that payment of such interest is, interest
            upon any overdue principal and overdue at the rate or rates
            prescribed therefor in such, and

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

      and

            (b) all Events of Default with respect to Securities of that Series,
      other than the non-payment of the principal of Securities of that Series
      which have become due solely by such declaration of acceleration, have
      been cured or waived as provided in Section 7.13.

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

      Section 7.3 Collection of Indebtedness and Suits for Enforcement by
Trustee.

      The Company covenants that if

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

            (b) default is made in the payment of principal of any Security at
      the Maturity thereof, or

            (c) default is made in the deposit of any sinking fund payment when
      and as due by the terms of a Security,

then, the Company will, upon demand of the Trustee, pay to it, for the benefit
of the Holders of such Securities, the whole amount then due and payable on such
Securities for principal and interest and, to the extent that payment of such
interest shall be legally enforceable, interest on any overdue principal or any
overdue interest, at the rate or rates prescribed therefor in such Securities,
and, in addition thereto, such 


                                      -27-
<PAGE>

further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

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

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

      Section 7.4 Trustee May File Proofs of Claim.

      In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal of the Securities
shall then be due and payable as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any demand on
the Company for the payment of overdue principal or interest) shall be entitled
and empowered, by intervention in such proceeding or otherwise,

            (a) to file and prove a claim for the whole amount of principal and
      interest owing and unpaid in respect of the Securities 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 the reasonable
      compensation, expenses, disbursements and advances of the Trustee, its
      agents and counsel) and of the Holders allowed in such judicial
      proceeding, and

            (b) to collect and receive any moneys or other property payable or
      deliverable on any such claims and to distribute the same, and any
      custodian, receiver, assignee, trustee, liquidator, sequestrator or other
      similar official in any such judicial proceeding is hereby authorized by
      each Holder to make such payments to the Trustee and, in the event that
      the Trustee shall consent to the making of such payments directly to the
      Holders, to pay to the Trustee any amount due it for the reasonable
      compensation, expenses, disbursements and advances of the Trustee, its
      agents and counsel, and any other amounts due the Trustee under Section
      8.7.


                                      -28-
<PAGE>

      Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceeding.

      Section 7.5 Trustee May Enforce Claims Without Possession of Securities.

      All rights of action and claims under this Indenture or the Securities may
be prosecuted and enforced by the Trustee without the possession of any of the
Securities or the production thereof in any proceeding relating thereto, and any
such proceeding instituted by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment shall, after provision
for the payment of the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, be for the ratable benefit of
the Holders of the Securities in respect of which such judgment has been
recovered.

      Section 7.6 Application of Money Collected.

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

      First: To the payment of all amounts due the Trustee under Section 8.7;

      Second: Subject to the provisions of Article IV, in case the principal of
the outstanding Securities shall not have become due and be unpaid, to the
payment of interest on the Securities in default in the order of the maturity of
the installments of such interest, with interest (to the extent that such
interest has been collected by the Trustee) upon the overdue installments of
interest at the rate borne by the Securities, such payments to be made ratably
to the persons entitled thereto;

      Third: Subject to the provisions of Article IV, in case the principal of
the outstanding Securities shall have become due, by declaration or otherwise,
and be unpaid to the payment of the whole amount then owing and unpaid upon the
Securities for principal and premium, if any, and interest, with interest on the
overdue principal and premium, if any, and (to the extent that such interest has
been collected by the Trustee) upon overdue installments of interest at the rate
borne by the Securities; and in case such money shall be insufficient to pay in
full the whole amounts so due and unpaid upon the Securities, then to the
payment of such principal and premium, if any, and interest without preference
or priority of principal and premium, if any, over interest, or of interest over
principal and premium, if any, or of any installment of interest over any other
installment of interest, or of any Security over any other Security, ratably to
the aggregate of such principal and premium, if any, and accrued and unpaid
interest; and

      Fourth: Subject to the provisions of Article IV, to the Company or any
other person lawfully entitled thereto.


                                      -29-
<PAGE>

      Section 7.7 Limitation on Suits.

      No Holder of any Security of any Series shall have any right to institute
any proceeding, judicial or otherwise, with respect to this Indenture, or for
the appointment of a receiver or trustee, or for any other remedy hereunder,
unless

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

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

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

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

            (e) no direction inconsistent with such written request has been
      given to the Trustee during such 60-day period by the Holders of a
      majority in principal amount of the outstanding Securities of that Series;
      it being understood and intended that no one or more of such Holders shall
      have any right in any manner whatever by virtue of, or by availing of, any
      provision of this Indenture to affect, disturb or prejudice the rights of
      any other of such Holders, or to obtain or to seek to obtain priority or
      preference over any other of such Holders or to enforce any right under
      this Indenture, except in the manner herein provided and for the equal and
      ratable benefit of all such Holders.

      Section 7.8 Unconditional Right of Holders to Receive Principal and
Interest.

      Notwithstanding any other provision in this Indenture, the Holder of any
Security shall have the right, which is absolute and unconditional, to receive
payment of the principal of and interest, if any, on such Security on the Stated
Maturity or Stated Maturities expressed in such Security (or, in the case of
redemption, on the redemption date) and to institute suit for the enforcement of
any such payment, and such rights shall not be impaired without the consent of
such Holder.

      Section 7.9 Restoration of Rights and Remedies.

      If the Trustee or any Holder has instituted any proceeding to enforce any
right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee or
to such Holder, then and in every such case, subject to any determination in
such proceeding, the Company, the Trustee and the Holders shall be restored
severally and respectively to their former positions hereunder and 


                                      -30-
<PAGE>

thereafter all rights and remedies of the Trustee and the Holders shall continue
as though no such proceeding had been instituted.

      Section 7.10  Rights and Remedies Cumulative.

      Except as otherwise provided with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Securities in Section 2.8, no right or
remedy herein conferred upon or reserved to the Trustee or to the Holders is
intended to be exclusive of any other right or remedy, and every right and
remedy shall, to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

      Section 7.11  Delay or Omission Not Waiver.

      No delay or omission of the Trustee or of any Holder of any Securities to
exercise any right or remedy accruing upon any Event of Default shall impair any
such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein. Every right and remedy given by this Article or by law to
the Trustee or to the Holders may be exercised from time to time, and as often
as may be deemed expedient, by the Trustee or by the Holders, as the case may
be.

      Section 7.12 Control by Holders.

      The Holders of a majority in principal amount of the outstanding
Securities of any Series shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred on the Trustee, with respect to the
Securities of such Series, provided that

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

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

            (c) subject to the provisions of Section 7.1, the Trustee shall have
      the right to decline to follow any such direction if the Trustee in good
      faith shall, by a Responsible Officer of the Trustee, determine that the
      proceeding so directed would involve the Trustee in personal liability.

      Section 7.13 Waiver of Past Defaults.

      The Holders of not less than a majority in principal amount of the
outstanding Securities of any Series may on behalf of the Holders of all the
Securities of such Series waive any past Default hereunder with respect to such
Series and its consequences, except a Default in 


                                      -31-
<PAGE>

the payment of the principal of or interest on any Security of such Series
(provided, however, that the Holders of a majority in principal amount of the
outstanding Securities of any Series may rescind an acceleration and its
consequences, including any related payment default that resulted from such
acceleration). Upon any such waiver, such Default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other Default or impair any right consequent thereon.

      Section 7.14 Undertaking for Costs.

      All parties to this Indenture agree, and each Holder of any Security 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
Company, to any suit instituted by the Trustee, to any suit instituted by any
Holder, or group of Holders, holding in the aggregate more than 10% in principal
amount of the outstanding Securities of any Series, or to any suit instituted by
any Holder for the enforcement of the payment of the principal of or interest on
any Security on or after the Stated Maturity or Stated Maturities expressed in
such Security (or, in the case of redemption, on the redemption date).

                                  ARTICLE VIII.

                                     TRUSTEE

      Section 8.1 Duties of Trustee.

      (a) If an Event of Default has occurred and is continuing, the Trustee
shall exercise 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.

      (b) Except during the continuance of an Event of Default:

            (i) The Trustee need perform only those duties that are specifically
      set forth in this Indenture and no others.

            (ii) In the absence of bad faith on its part, the Trustee may
      conclusively rely, as to the truth of the statements and the correctness
      of the opinions expressed therein, upon Officers' Certificates or Opinions
      of Counsel furnished to the Trustee and conforming to the requirements of
      this Indenture; however, in the case of any such Officers' Certificates or


                                      -32-
<PAGE>

      Opinions of Counsel which by any provisions hereof are specifically
      required to be furnished to the Trustee, the Trustee shall examine such
      Officers' Certificates and Opinions of Counsel to determine whether or not
      they conform to the requirements of this Indenture.

      (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:

            (i) This paragraph does not limit the effect of paragraph (b) of
      this Section.

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

            (iii) The Trustee shall not be liable with respect to any action
      taken, suffered or omitted to be taken by it with respect to Securities of
      any Series in good faith in accordance with the direction of the Holders
      of a majority in principal amount of the outstanding Securities of such
      Series relating to the time, method and place of conducting any proceeding
      for any remedy available to the Trustee, or exercising any trust or power
      conferred upon the Trustee, under this Indenture with respect to the
      Securities of such Series.

      (d) Every provision of this Indenture that in any way relates to the
Trustee is subject to paragraphs (a), (b) and (c) of this Section.

      (e) The Trustee may refuse to perform any duty or exercise any right or
power unless it receives indemnity satisfactory to it against any loss,
liability or expense.

      (f) The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree in writing with the Company. Money held in
trust by the Trustee need not be segregated from other funds except to the
extent required by law.

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

      (h) The Paying Agent, the Registrar and any authenticating agent shall be
entitled to the protections, immunities and standard of care as are set forth in
paragraphs (a), (b) and (c) of this Section with respect to the Trustee.


                                      -33-
<PAGE>

      Section 8.2 Rights of Trustee.

      (a) The Trustee may rely on and shall be protected in acting or refraining
from acting upon any document believed by it to be genuine and to have been
signed or presented by the proper person. The Trustee need not investigate any
fact or matter stated in the document.

      (b) Before the Trustee acts or refrains from acting, it may require an
Officers' Certificate or an Opinion of Counsel. The Trustee shall not be liable
for any action it takes or omits to take in good faith in reliance on such
Officers' Certificate or Opinion of Counsel.

      (c) The Trustee may act through agents and shall not be responsible for
the misconduct or negligence of any agent appointed with due care. No Depository
shall be deemed an agent of the Trustee and the Trustee shall not be responsible
for any act or omission by any Depository.

      (d) The Trustee shall not be liable for any action it takes or omits to
take in good faith which it believes to be authorized or within its rights or
powers.

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

      (f) The Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request or direction of any of
the Holders of Securities unless such Holders shall have offered to the Trustee
reasonable security or indemnity against the costs, expenses and liabilities
which might be incurred by it in compliance with such request or direction.

      Section 8.3 Individual Rights of Trustee.

      The Trustee in its individual or any other capacity may become the owner
or pledgee of Securities and may otherwise deal with the Company or an Affiliate
with the same rights it would have if it were not Trustee. Any Agent may do the
same with like rights. The Trustee is also subject to Sections 8.10 and 8.11.

      Section 8.4 Trustee's Disclaimer.

      The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities, it shall not be accountable for the Company's use
of the proceeds from the Securities, and it shall not be responsible for any
statement in the Securities other than its authentication.


                                      -34-
<PAGE>

      Section 8.5 Notice of Defaults.

      If a Default or Event of Default occurs and is continuing with respect to
the Securities of any Series and if it is known to a Responsible Officer of the
Trustee, the Trustee shall mail to each Securityholder of the Securities of that
Series notice of a Default or Event of Default within 90 days after it occurs
or, if later, after a Responsible Officer of the Trustee has knowledge of such
Default or Event of Default. Except in the case of a Default or Event of Default
in payment of principal of or interest on any Security of any Series, the
Trustee may withhold the notice if and so long as its corporate trust committee
or a committee of its Responsible Officers in good faith determines that
withholding the notice is in the interests of Securityholders of that Series.

      Section 8.6 Reports by Trustee to Holders.

      Within 60 days after May 15 in each year, the Trustee shall transmit by
mail to all Securityholders, as their names and addresses appear on the register
kept by the Registrar, a brief report dated as of such May 15, in accordance
with, and to the extent required under, TIA ss. 313.

      A copy of each report at the time of its mailing to Securityholders of any
Series shall be filed with the SEC and each stock exchange on which the
Securities of that Series are listed. The Company shall promptly notify the
Trustee when Securities of any Series are listed on any stock exchange.

      Section 8.7 Compensation and Indemnity.

      The Company shall pay to the Trustee from time to time reasonable
compensation for its services. The Trustee's compensation shall not be limited
by any law on compensation of a trustee of an express trust. The Company shall
reimburse the Trustee upon request for all reasonable out-of-pocket expenses
incurred by it. Such expenses shall include the reasonable compensation and
expenses of the Trustee's agents and counsel.

      The Company shall indemnify the Trustee (including the cost of defending
itself) against any loss, liability or expense incurred by it except as set
forth in the next paragraph in the performance of its duties under this
Indenture as Trustee or Agent. The Trustee shall notify the Company promptly of
any claim for which it may seek indemnity. The Company shall defend the claim
and the Trustee shall cooperate in the defense. The Trustee may have separate
counsel and the Company shall pay the reasonable fees and expenses of such
counsel. The Company need not pay for any settlement made without its consent,
which consent shall not be unreasonably withheld. This indemnification shall
apply to officers, directors, employees, shareholders and agents of the Trustee.

      The Company need not reimburse any expense or indemnify against any loss
or liability incurred by the Trustee or by any officer, director, employee,
shareholder or agent of the Trustee through negligence or bad faith.


                                      -35-
<PAGE>

      To secure the Company's payment obligations in this Section, the Trustee
shall have a lien prior to the Securities of any Series on all money or property
held or collected by the Trustee, except that held in trust to pay principal and
interest on particular Securities of that Series.

      When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 7.1(e) or (f) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.

      Section 8.8 Replacement of Trustee.

      A resignation or removal of the Trustee and appointment of a successor
Trustee shall become effective only upon the successor Trustee's acceptance of
appointment as provided in this Section.

      The Trustee may resign with respect to the Securities of one or more
Series by so notifying the Company. The Holders of a majority in principal
amount of the Securities of any Series may remove the Trustee with respect to
that Series by so notifying the Trustee and the Company. The Company may remove
the Trustee with respect to Securities of one or more Series if:

            (a) the Trustee fails to comply with Section 8.10;

            (b) the Trustee is adjudged a bankrupt or an insolvent or an order
      for relief is entered with respect to the Trustee under any Bankruptcy
      Law;

            (c) a Custodian or public officer takes charge of the Trustee or its
      property; or

            (d) the Trustee becomes incapable of acting.

      If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holders
of a majority in principal amount of the then outstanding Securities may appoint
a successor Trustee to replace the successor Trustee appointed by the Company.

      If a successor Trustee with respect to the Securities of any one or more
Series does not take office within 60 days after the retiring Trustee resigns or
is removed, the retiring Trustee, the Company or the Holders of at least 10% in
principal amount of the Securities of the applicable Series may petition any
court of competent jurisdiction for the appointment of a successor Trustee.

      If the Trustee with respect to the Securities of any one or more Series
fails to comply with Section 8.10, any Securityholder of the applicable Series
may petition any court of 


                                      -36-
<PAGE>

competent jurisdiction for the removal of the Trustee and the appointment of a
successor Trustee.

      A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company. Immediately after that, the retiring
Trustee shall transfer all property held by it as Trustee to the successor
Trustee subject to the lien provided for in Section 8.7, the resignation or
removal of the retiring Trustee shall become effective, and the successor
Trustee shall have all the rights, powers and duties of the Trustee with respect
to each Series of Securities for which it is acting as Trustee under this
Indenture. A successor Trustee shall mail a notice of its succession to each
Securityholder of each such Series. Notwithstanding replacement of the Trustee
pursuant to this Section 8.8, the Company's obligations under Section 8.7 hereof
shall continue for the benefit of the retiring trustee with respect to expenses
and liabilities incurred by it prior to such replacement.

      Section 8.9 Successor Trustee by Merger, etc.

      If the Trustee consolidates with, merges or converts into, or transfers
all or substantially all of its corporate trust business to, another
corporation, the successor corporation without any further act shall be the
successor Trustee.

      Section 8.10 Eligibility; Disqualification.

      This Indenture shall always have a Trustee who satisfies the requirements
of TIA ss.ss. 310(a)(1), (2) and (5). The Trustee shall always have a combined
capital and surplus of at least $25,000,000 as set forth in its most recent
published annual report of condition. The Trustee shall comply with TIA ss.ss.
310(b).

      Section 8.11 Preferential Collection of Claims Against Company.

      The Trustee is subject to TIA ss. 311(a), excluding any creditor
relationship listed in TIA ss. 311(b). A Trustee who has resigned or been
removed shall be subject to TIA ss. 311(a) to the extent indicated.

                                   ARTICLE IX.

                     SATISFACTION AND DISCHARGE; DEFEASANCE

      Section 9.1 Satisfaction and Discharge of Indenture.

      This Indenture shall upon Company Order cease to be of further effect
(except as hereinafter provided in this Section 9.1), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

            (a) either

                  (i) all Securities theretofore authenticated and delivered
            (other than Securities that have been destroyed, lost or stolen and


                                      -37-
<PAGE>

            that have been replaced or paid) have been delivered to the Trustee
            for cancellation; or

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

                        (1) have become due and payable, or

                        (2) will become due and payable at their Stated Maturity
                  within one year, or

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

                        (4) are deemed paid and discharged pursuant to Section
                  9.3, as applicable;

and the Company, in the case of (1), (2) or (3) above, has deposited or caused
to be deposited with the Trustee as trust funds in trust an amount sufficient
for the purpose of paying and discharging the entire indebtedness on such
Securities not theretofore delivered to the Trustee for cancellation, for
principal and interest to the date of such deposit (in the case of Securities
which have become due and payable on or prior to the date of such deposit) or to
the Stated Maturity or redemption date, as the case may be;

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

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

      Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 8.7, and, if money shall
have been deposited with the Trustee pursuant to clause (a) of this Section, the
provisions of Sections 2.4, 2.7, 2.8, 9.1, 9.2 and 9.5 shall survive.

      Section 9.2 Application of Trust Funds; Indemnification.

      (a) Subject to the provisions of Section 9.5, all money deposited with the
Trustee pursuant to Section 9.1, all money and U.S. Government Obligations
deposited with the Trustee pursuant to Section 9.3 or 9.4 and all money received
by the Trustee in respect of U.S. Government Obligations deposited with the
Trustee pursuant to Section 9.3 or 9.4, shall be held in trust and applied by
it, in accordance with the provisions of the Securities and this Indenture, to
the payment, either directly or through 


                                      -38-
<PAGE>

any Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the persons entitled thereto, of the principal and
interest for whose payment such money has been deposited with or received by the
Trustee or to make mandatory sinking fund payments or analogous payments as
contemplated by Sections 9.3 or 9.4.

      (b) The Company shall pay and shall indemnify the Trustee against any tax,
fee or other charge imposed on or assessed against U.S. Government Obligations
deposited pursuant to Sections 9.3 or 9.4 or the interest and principal received
in respect of such obligations other than any payable by or on behalf of
Holders.

      (c) The Trustee shall deliver or pay to the Company from time to time upon
Company Request any U.S. Government Obligations or money held by it as provided
in Sections 9.3 or 9.4 which, in the opinion of a nationally recognized firm of
independent certified public accountants expressed in a written certification
thereof delivered to the Trustee, are then in excess of the amount thereof which
then would have been required to be deposited for the purpose for which such
U.S. Government Obligations or money were deposited or received. This provision
shall not authorize the sale by the Trustee of any U.S. Government Obligations
held under this Indenture.

      Section 9.3 Legal Defeasance of Securities of any Series.

      Unless this Section 9.3 is otherwise specified, pursuant to Section
2.2.16, to be inapplicable to Securities of any Series, the Company shall be
deemed to have paid and discharged the entire indebtedness on all the
outstanding Securities of such Series on the 91st day after the date of the
deposit referred to in subparagraph (d) hereof, and the provisions of this
Indenture, as it relates to such outstanding Securities of such Series, shall no
longer be in effect (and the Trustee, at the expense of the Company, shall, at
Company Request, execute proper instruments acknowledging the same), except as
to:

            (a) the rights of Holders of Securities of such Series to receive,
      from the trust funds described in subparagraph (d) hereof, (i) payment of
      the principal of and each installment of principal of and interest on the
      outstanding Securities of such Series on the Stated Maturity of such
      principal or installment of principal or interest and ii) the benefit of
      any mandatory sinking fund payments applicable to the Securities of such
      Series on the day on which such payments are due and payable in accordance
      with the terms of this Indenture and the Securities of such Series;

            (b) the provisions of Sections 2.4, 2.7, 2.8, 9.2, 9.3 and 9.5; and

            (c) the rights, powers, trust and immunities of the Trustee
      hereunder;

            provided that, the following conditions shall have been satisfied:

            (d) the Company shall have deposited or caused to be deposited
      irrevocable with the Trustee as trust funds in trust for making the
      purpose of the 


                                      -39-
<PAGE>

      following payments, specifically pledged as security for and dedicated
      solely to the benefit of the Holders of such Securities cash in Dollars
      (or such other money or currencies as shall then be legal tender in the
      United States) and/or U.S. Government Obligations, which through the
      payment of interest and principal in respect thereof, in accordance with
      their terms, will provide (and without reinvestment and assuming no tax
      liability will be imposed on such Trustee), not later than one day before
      the due date of any payment of money, an amount in cash, 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 and discharge each installment of principal (including
      mandatory sinking fund or analogous payments) of and interest, if any, on
      all the Securities of such Series on the dates such installments of
      interest or principal are due;

            (e) such deposit will not result in a breach or violation of, or
      constitute a default under, this Indenture or any other agreement or
      installment to which the Company is a party or by which it is bound;

            (f) no Default or Event of Default with respect to the Securities of
      such Series shall have occurred and be continuing on the date of such
      deposit or during the period ending on the 91st day after such date;

            (g) the Company shall have delivered to the Trustee an Officers'
      Certificate and an Opinion of Counsel to the effect that (i) the Company
      has received from, or there has been published by, the Internal Revenue
      Service a ruling, or (ii) since the date of execution of this Indenture,
      there has been a change in the applicable Federal income tax law, in
      either case to the effect that, and based thereon such Opinion of Counsel
      shall confirm that, the Holders of the Securities of such Series 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 amount and in the same manner and at the same times
      as would have been the case if such deposit, defeasance and discharge had
      not occurred;

            (h) the Company shall have delivered to the Trustee an Officers'
      Certificate stating that the deposit was not made by the Company with the
      intent of preferring the Holders of the Securities of such Series over any
      other creditors of the company or with the intent of defeating, hindering,
      delaying or defrauding any other creditors of the Company;

            (i) such deposit shall not result in the trust arising from such
      deposit constituting an investment company (as defined in the Investment
      Company Act of 1940, as amended), or such trust shall be qualified under
      such Act or exempt from regulation thereunder; and

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


                                      -40-
<PAGE>

      Section 9.4 Covenant Defeasance.

      Unless this Section 9.4 is otherwise specified pursuant to Section 2.2.16
to be inapplicable to Securities of any Series, on and after the 91st day after
the date of the deposit referred to in subparagraph (a) hereof, the Company may
omit to comply with any term, provision or condition set forth under Sections
5.2, 5.3, 5.4, 5.5, 5.6, and 6.1 as well as any additional covenants contained
in a supplemental indenture hereto for a particular Series of Securities or a
Board Resolution or an Officers' Certificate delivered pursuant to Section
2.2.16 (and the failure to comply with any such covenants shall not constitute a
Default or Event of Default under Section 7.1), with respect to the Securities
of such Series, provided that the following conditions shall have been
satisfied:

            (a) With reference to this Section 9.4, the Company has deposited or
      caused to be irrevocably deposited (except as provided in Section 9.2(c))
      with the Trustee as trust funds in trust, specifically pledged as security
      for, and dedicated solely to, the benefit of the Holders of such
      Securities cash in Dollars (or such other money or currencies as shall
      then be legal tender in the United States) and/or U.S. Government
      Obligations, which through the payment of interest and principal in
      respect thereof, in accordance with their terms, will provide (and without
      reinvestment and assuming no tax liability will be imposed on such
      Trustee), not later than one day before the due date of any payment of
      money, an amount in cash, sufficient, in the opinion of a nationally
      recognized firm of independent certified public accountants expressed in a
      written certification thereof delivered to the Trustee, to pay principal
      and interest, if any, on and any mandatory sinking fund in respect of the
      Securities of such Series on the dates such installments of interest or
      principal are due;

            (b) Such deposit will not result in a breach or violation of, or
      constitute a default under, this Indenture or any other agreement or
      instrument to which the Company is a party or by which it is bound;

            (c) No Default or Event of Default with respect to the Securities of
      such Series shall have occurred and be continuing on the date of such
      deposit or during the period ending on the 91st day after such date;

            (d) the Company shall have delivered to the Trustee an Opinion of
      Counsel confirming that Holders of the Securities of such Series will not
      recognize income, gain or loss for federal income tax purposes as a result
      of such deposit and 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 defeasance had not occurred;

            (e) the Company shall have delivered to the Trustee an Officers'
      Certificate stating the deposit was not made by the Company with the
      intent of preferring the Holders of the Securities of such Series over any
      other creditors of the Company or with the intent of defeating, hindering,
      delaying or defrauding any other creditors of the Company; and


                                      -41-
<PAGE>

            (f) The Company 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 Section 9.4 have been complied with.

      Section 9.5 Repayment to Company.

      The Trustee and the Paying Agent shall pay to the Company upon request any
money held by them for the payment of principal and interest that remains
unclaimed for two years. After that, Securityholders entitled to the money must
look to the Company for payment as general creditors unless an applicable
abandoned property law designates another person.

                                   ARTICLE X.

                             AMENDMENTS AND WAIVERS

      Section 10.1 Without Consent of Holders.

      The Company and the Trustee may amend or supplement this Indenture or the
Securities of one or more Series without the consent of any Securityholder:

            (a) to cure any ambiguity, defect or inconsistency;

            (b) to comply with Article VI;

            (c) to provide for uncertificated Securities in addition to or in
      place of certificated Securities;

            (d) to make any change that does not adversely affect the rights of
      any Securityholder;

            (e) to provide for the issuance of and establish the form and terms
      and conditions of Securities of any Series as permitted by this Indenture;

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

            (g) to comply with requirements of the SEC in order to effect or
      maintain the qualification of this Indenture under the TIA.

      Section 10.2 With Consent of Holders.

      The Company and the Trustee may enter into a supplemental indenture with
the written consent of the Holders of at least a majority in principal amount of
the outstanding 


                                      -42-
<PAGE>

Securities of each Series affected by such supplemental indenture (including
consents obtained in connection with a tender offer or exchange offer for the
Securities of such Series), 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 any manner the rights of the
Securityholders of each such Series. Except as provided in Section 7.13, the
Holders of at least a majority in principal amount of the outstanding Securities
of each Series affected by such waiver by notice to the Trustee (including
consents obtained in connection with a tender offer or exchange offer for the
Securities of such Series) may waive compliance by the Company with any
provision of this Indenture or the Securities with respect to such Series.

      It shall not be necessary for the consent of the Holders of Securities
under this Section 10.2 to approve the particular form of any proposed
supplemental indenture or waiver, but it shall be sufficient if such consent
approves the substance thereof. After a supplemental indenture or waiver under
this section becomes effective, the Company shall mail to the Holders of
Securities affected thereby, a notice briefly describing the supplemental
indenture or waiver. Any failure by the Company to mail or publish such notice,
or any defect therein, shall not, however, in any way impair or affect the
validity of any such supplemental indenture or waiver.

      Section 10.3 Limitations.

      Without the consent of each Securityholder affected, an amendment or
waiver may not:

            (a) reduce the amount of Securities whose Holders must consent to an
      amendment, supplement or waiver;

            (b) reduce the rate of or change the time for payment of interest
      (including default interest) on any Security;

            (c) reduce the principal or change the Stated Maturity of any
      Security or reduce the amount of, or postpone the date fixed for, the
      payment of any sinking fund or analogous obligation;

            (d) reduce the principal amount of Discount Securities payable upon
      acceleration of the maturity thereof;

            (e) waive a Default or Event of Default in the payment of the
      principal of or interest, if any, on any Security (except a rescission of
      acceleration of the Securities of any Series by the Holders of at least a
      majority in principal amount of the outstanding Securities of such Series
      and a waiver of the payment default that resulted from such acceleration);

            (f) make the principal of or interest, if any, on any Security
      payable in any currency other than that stated in the Security;


                                      -43-
<PAGE>

            (g) make any change in Sections 7.8, 7.13, 10.3 (this sentence),
      11.15 or 11.16; or

            (h) waive a redemption payment with respect to any Security or
      change any of the provisions with respect to the redemption of any
      Securities.

      Section 10.4 Compliance with Trust Indenture Act.

      Every amendment to this Indenture or the Securities of one or more Series
shall be set forth in a supplemental indenture hereto that complies with the TIA
as then in effect.

      Section 10.5 Revocation and Effect of Consents.

      Until an amendment or waiver becomes effective, a consent to it by a
Holder of a Security is a continuing consent by the Holder and every subsequent
Holder of a Security or portion of a Security that evidences the same debt as
the consenting Holder's Security, even if notation of the consent is not made on
any Security. However, any such Holder or subsequent Holder may revoke the
consent as to his Security or portion of a Security if the Trustee receives the
notice of revocation before the date the amendment or waiver becomes effective.

      Any amendment or waiver once effective shall bind every Securityholder of
each Series affected by such amendment or waiver unless it is of the type
described in any of clauses (a) through (g) of Section 10.3. In that case, the
amendment or waiver shall bind each Holder of a Security who has consented to it
and every subsequent Holder of a Security or portion of a Security that
evidences the same debt as the consenting Holder's Security.

      Section 10.6 Notation on or Exchange of Securities.

      The Trustee may place an appropriate notation about an amendment or waiver
on any Security of any Series thereafter authenticated. The Company in exchange
for Securities of that Series may issue and the Trustee shall authenticate upon
request new Securities of that Series that reflect the amendment or waiver.

      Section 10.7 Trustee Protected.

      In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 8.1) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Trustee shall sign all
supplemental indentures, except that the Trustee need not sign any supplemental
indenture that adversely affects its rights.


                                      -44-
<PAGE>

                                   ARTICLE XI.

                                  MISCELLANEOUS

      Section 11.1 Trust Indenture Act Controls.
                  
      If any provision of this Indenture limits, qualifies, or conflicts with
another provision which is required or deemed to be included in this Indenture
by the TIA, such required or deemed provision shall control.

      Section 11.2 Notices.

      Any notice or communication by the Company or the Trustee to the other is
duly given if in writing and delivered in person or mailed by first-class mail:

      if to the Company:

      Omnicom Group Inc.
      437 Madison Avenue
      New York, New York  10022
      Attention:_______________________

      if to the Trustee:

      [Name of Trustee]
      [Address]
      __________________________________
      __________________________________
      Attention:________________________

      The Company or the Trustee by notice to the other may designate additional
or different addresses for subsequent notices or communications.

      Any notice or communication to a Securityholder shall be mailed by
first-class mail to his address shown on the register kept by the Registrar.
Failure to mail a notice or communication to a Securityholder of any Series or
any defect in it shall not affect its sufficiency with respect to other
Securityholders of that or any other Series.

      If a notice or communication is mailed or published in the manner provided
above, within the time prescribed, it is duly given, whether or not the
Securityholder receives it.

      If the Company mails a notice or communication to Securityholders, it
shall mail a copy to the Trustee and each Agent at the same time.


                                      -45-
<PAGE>

      Section 11.3 Communication by Holders with Other Holders.

      Securityholders of any Series may communicate pursuant to TIA ss. 312(b)
with other Securityholders of that Series or any other Series with respect to
their rights under this Indenture or the Securities of that Series or all
Series. The Company, the Trustee, the Registrar and anyone else shall have the
protection of TIA ss. 312(c).

      Section 11.4 Certificate and Opinion as to Conditions Precedent.

      Upon any request or application by the Company to the Trustee to take any
action under this Indenture, the Company shall furnish to the Trustee:

            (a) an Officers' Certificate stating that, in the opinion of the
      signers, all conditions precedent, if any, provided for in this Indenture
      relating to the proposed action have been complied with; and

            (b) an Opinion of Counsel stating that, in the opinion of such
      counsel, all such conditions precedent have been complied with.

      Section 11.5 Statements Required in Certificate or Opinion.

      Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture (other than a certificate provided
pursuant to TIA ss. 314(a)(4)) shall comply with the provisions of TIA ss.
314(e) and 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.

      Section 11.6 Rules by Trustee and Agents.

      The Trustee may make reasonable rules for action by or a meeting of
Securityholders of one or more Series. Any Agent may make reasonable rules and
set reasonable requirements for its functions.


                                      -46-
<PAGE>

      Section 11.7 Legal Holidays.

      Unless otherwise provided by Board Resolution, Officer's Certificate or
supplemental indenture for a particular Series, a "Legal Holiday" is any day
that is not a Business Day. If a payment date is a Legal Holiday at a place of
payment, payment may be made at that place on the next succeeding day that is
not a Legal Holiday, and no interest shall accrue for the intervening period.

      Section 11.8 No Recourse Against Others.

      A director, officer, employee or stockholder, as such, of the Company
shall not have any liability for any obligations of the Company under the
Securities or the Indenture or for any claim based on, in respect of or by
reason of such obligations or their creation. Each Securityholder by accepting a
Security waives and releases all such liability.

      The waiver and release are part of the consideration for the issue of the
Securities.

      Section 11.9 Counterparts.

      This Indenture may be executed in any number of counterparts and by the
parties hereto in separate counterparts, each of which when so executed shall be
deemed to be an original and all of which taken together shall constitute one
and the same agreement.

      Section 11.10 Governing Laws.

      THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY THE LAWS OF THE
STATE OF NEW YORK APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED IN SUCH
STATE, WITHOUT REGARD TO THE CONFLICT OF LAWS PROVISIONS THEREOF.

      Section 11.11 No Adverse Interpretation of Other Agreements.

      This Indenture may not be used to interpret another indenture, loan or
debt agreement of the Company or a Subsidiary. Any such indenture, loan or debt
agreement may not be used to interpret this Indenture.

      Section 11.12 Successors.

      All agreements of the Company in this Indenture and the Securities shall
bind its successor. All agreements of the Trustee in this Indenture shall bind
its successor.

      Section 11.13 Severability.

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


                                      -47-
<PAGE>

      Section 11.14 Table of Contents, Headings, Etc.

      The Table of Contents, Cross-Reference Table, and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or
restrict any of the terms or provisions hereof.

                                  ARTICLE XII.

                                  SINKING FUNDS

      Section 12.1 Applicability of Article.

      The provisions of this Article shall be applicable to any sinking fund for
the retirement of the Securities of a Series, except as otherwise permitted or
required by any form of Security of such Series issued pursuant to this
Indenture.

      The minimum amount of any sinking fund payment provided for by the terms
of the Securities of any Series is herein referred to as a "mandatory sinking
fund payment" and any other amount provided for by the terms of Securities of
such Series is herein referred to as an "optional sinking fund payment." If
provided for by the terms of Securities of any Series, the cash amount of any
sinking fund payment may be subject to reduction as provided in Section 12.2.
Each sinking fund payment shall be applied to the redemption of Securities of
any Series as provided for by the terms of the Securities of such Series.

      Section 12.2 Satisfaction of Sinking Fund Payments with Securities.

      The Company may, in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of any Series to be made pursuant to the
terms of such Securities (1) deliver outstanding Securities of such Series to
which such sinking fund payment is applicable (other than any of such Securities
previously called for mandatory sinking fund redemption) and (2) apply as credit
Securities of such Series to which such sinking fund payment is applicable and
which have been redeemed either at the election of the Company pursuant to the
terms of such Series of Securities (except pursuant to any mandatory sinking
fund) or through the application of permitted optional sinking fund payments or
other optional redemptions pursuant to the terms of such Securities, provided
that such Securities have not been previously so credited. Such Securities shall
be received by the Trustee, together with an Officers' Certificate with respect
thereto, not later than 15 days prior to the date on which the Trustee begins
the process of selecting Securities for redemption, and shall be credited for
such purpose by the Trustee at the price specified in such Securities for
redemption through operation of the sinking fund and the amount of such sinking
fund payment shall be reduced accordingly. If as a result of the delivery or
credit of Securities in lieu of cash payments pursuant to this Section 12.2, the
principal amount of Securities of such Series to be redeemed in order to exhaust
the aforesaid cash payment shall be less than $100,000, the Trustee need not
call Securities of such Series for redemption, except upon receipt of a Company
Order that such action be taken, and such cash payment shall be held by the
Trustee or a Paying Agent and 


                                      -48-
<PAGE>

applied to the next succeeding sinking fund payment, provided, however, that the
Trustee or such Paying Agent shall from time to time upon receipt of a Company
Order pay over and deliver to the Company any cash payment so being held by the
Trustee or such Paying Agent upon delivery by the Company to the Trustee of
Securities of that Series purchased by the Company having an unpaid principal
amount equal to the cash payment required to be released to the Company.

      Section 12.3 Redemption of Securities for Sinking Fund.

      Not less than 45 days (unless otherwise indicated in the Board Resolution,
supplemental indenture hereto or Officers' Certificate in respect of a
particular Series of Securities) prior to each sinking fund payment date for any
Series of Securities, the Company will deliver to the Trustee an Officers'
Certificate specifying the amount of the next ensuing mandatory sinking fund
payment for that Series pursuant to the terms of that Series, the portion
thereof, if any, which is to be satisfied by payment of cash and the portion
thereof, if any, which is to be satisfied by delivering and crediting of
Securities of that Series pursuant to Section 12.2, and the optional amount, if
any, to be added in cash to the next ensuing mandatory sinking fund payment, and
the Company shall thereupon be obligated to pay the amount therein specified.

      Not less than 30 days (unless otherwise indicated in the Board Resolution,
Officers' Certificate or supplemental indenture in respect of a particular
Series of Securities) before each such sinking fund payment date the Trustee
shall select the Securities to be redeemed upon such sinking fund payment date
in the manner specified in Section 3.2 and cause notice of the redemption
thereof to be given in the name of and at the expense of the Company in the
manner provided in Section 3.3. Such notice having been duly given, the
redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 3.4, 3.5 and 3.6.


                                      -49-
<PAGE>

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

                                       OMNICOM GROUP INC.

                                       By:__________________________________
Attest:                                Name:
                                       Its:
________________________________
                                       [NAME OF TRUSTEE]

                                       By:__________________________________
                                           Name:
                                           Its:


                                      -50-
<PAGE>

                                                                       EXHIBIT A

Subordinated Debt Security

                            Form of Face of Security.

                                [Title of Series]

  [Insert any legend required by the Internal Revenue Code and the regulations
                                  thereunder.]

                                                                         [CUSIP]

No._________
$___________

      OMNICOM GROUP INC, a New York corporation (herein called the "Company",
which term includes any successor person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to
____________________________________, or registered assigns, the principal sum
of ______________________ Dollars on _______, ____ [if the Security is to bear
interest prior to Maturity, insert -- and to pay interest thereon from
_______________ or from the most recent [interest payment date] to which
interest has been paid] or duly provided for, [semi-annually on
_________________ and _________________ in each year] [If other than semi-annual
payments, insert frequency of payments and payment dates], commencing
_______________, at [If the Security is to bear interest at a fixed rate, insert
- -- the rate of ___% per annum, set forth below] [If the Security is to bear
interest at a variable or floating rate and if determined with reference to an
index, refer to description of index below] until the principal hereof is paid
or made available for payment [if applicable, insert -- and (to the extent that
the payment of such interest shall be legally enforceable) at the rate of ___%
per annum on any overdue principal and premium and on any overdue installment of
interest]. The interest so payable, and punctually paid or duly provided for, on
any [interest payment date] will, as provided in such Indenture, be paid to the
person in whose name this Security (or one or more predecessor securities) is
registered at the close of business on the [regular] record date for such
interest, which shall be the ________________ or ________________ (whether or
not a Business Day), as the case may be, next preceding such interest payment
date. Any such interest not so punctually paid or duly provided for will
forthwith cease to be payable to the Holder on such [regular] record date and
may either be paid to the person in whose name this Security (or one or more
predecessor securities) is registered at the close of business on a [special]
record date for the payment of such defaulted interest to be fixed by the
Trustee, notice whereof shall be given to Holders of Securities of this Series
not less than 10 days prior to such [special] record date, or be paid at any
time in any other lawful manner not inconsistent with the requirements of any
securities exchange on which the Securities of this Series may be listed, and
upon such notice as may be required by such exchange, all as more fully provided
in said Indenture).


                                      A-1
<PAGE>

      [If the Securities are floating or adjustable rate securities with respect
to which the principal of or any premium or interest may be determined with
reference to an index, insert the text of the floating or adjustable rate
provision.]

      [If the Security is not to bear interest prior to Maturity, insert -- The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal of this Security shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
default in payment to the date payment of such principal has been made or duly
provided for. Interest on any overdue principal shall be payable on demand. Any
such interest on any overdue principal that is not so paid on demand shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
demand for payment to the date payment of such interest has been made or duly
provided for, and such interest shall also be payable on demand.]

      Payment of the principal of (and premium, if any) and [if applicable,
insert -- any such] interest on this Security will be made at the office or
agency of the Company maintained for that purpose in _______________, in
accordance with the terms of the Indenture referred to or the reverse hereof in
such coin or currency of the United States of America as at the time of payment
is legal tender for payment of public and private debts; provided, however, that
at the option of the Company payment of interest may be made by check mailed to
the address of the person entitled thereto as such address shall appear in the
Security register).

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

      The Security shall be deemed to be a contract made under the laws of the
State of New York, and for all purposes shall be construed in accordance with
and governed by the laws of said state.

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


                                      A-2
<PAGE>

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

Dated:

                                                OMNICOM GROUP INC.


                                                By___________________________

Attest:

__________________________________


                Form of Trustee's Certificate of Authentication.

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

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

                                                 _______________________________
                                                                      As Trustee

                                                 By_____________________________
                                                              Authorized Officer


                                      A-3
<PAGE>

                          Form of Reverse of Security.

                               OMNICOM GROUP INC.

                                [Title of Series]

      This Security is one of a duly authorized issue of securities of the
Company, designated as its ________ due _____ (herein called the "Securities"),
issued and to be issued in one or more Series under an Indenture, dated as of
_________________ (herein called the "Indenture"), between the Company and
____________________, as Trustee (herein called the "Trustee", which term
includes any successor trustee under the Indenture), to which Indenture and all
indentures supplemental thereto reference is hereby made for a statement of the
respective rights, limitations of rights, duties and immunities thereunder of
the Company, the Trustee and the Holders of the Securities and of the terms upon
which the Securities are, and are to be, authenticated and delivered. This
Security is one of the Series designated on the face hereof [, limited in
aggregate principal amount to $____________________]. Capitalized terms used in
this Security and not defined herein have the meaning ascribed thereto in the
Indenture.

      ______, the Trustee under the Indenture has been appointed by the Company
as paying agent, Securities registrar, [conversion agent] and [custodian] with
regard to the Securities.

      In case an Event of Default shall have occurred and be continuing, the
principal of and accrued interest on all Securities may be declared, and upon
said declaration, shall become due and payable, in the manner, with the effect
and subject to the conditions provided for in the Indenture, including the terms
of the subordination to Senior Indebtedness as described below.

      [If applicable, insert -- The Securities of this Series are subject to
redemption upon not less than 30 days' nor more than 60 days' notice by mail,
[if applicable, insert -- (1) on __________________ in any year commencing with
the year _________ and ending with the year __________ through operation of the
sinking fund for this Series at a redemption price equal to 100% of the
principal amount, and (2)] at any time on or after ____________, __, as a whole
or in part, at the election of the Company, at the following redemption prices
(expressed as percentages of the principal amount): If redeemed [on or before
__________________, ___% and if redeemed] during the 12-month period beginning
______________ of the years indicated,

                     Redemption                                      Redemption
Year                   Price                    Year                   Price
- ----                   -----                    ----                   -----



and thereafter at a redemption price equal to _________________ of the principal
amount, together in the case of any such redemption [if applicable, insert --
(whether through operation of the sinking fund or otherwise)] with accrued
interest to the redemption date, but interest installments whose stated Maturity
is on or prior to such redemption date will be payable to the 


                                      A-4
<PAGE>

Holders of such Securities, or one or more predecessor securities, of record at
the close of business on the relevant record dates referred to on the face
hereof, all as provided in the Indenture.]

      [If applicable, insert -- The Securities of this Series are subject to
redemption upon not less than 30 days' nor more than 60 days' notice by mail,
(1) on __________ in any year commencing with the year __________ and ending
with the year __________ through operation of the sinking fund for this Series
at the redemption prices for redemption through operation of the sinking fund
(expressed as percentages of the principal amount) set forth in the table below,
and (2) at any time [on or after __________], as a whole or in part, at the
election of the Company, at the redemption prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below: If redeemed during the 12-month period
beginning __________ of the years indicated,

                                Redemption Price
                                 For Redemption           Redemption Price For
                                Through Operation          Redemption Otherwise
                                     of the               Than Through Operation
Year                              Sinking Fund             of the Sinking Fund
- ----                              ------------             -------------------



and thereafter at a redemption price equal to _____% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the redemption date, but
interest installments whose Stated Maturity in on or prior to such redemption
date will be payable to the Holders of such Securities, or one or more
predecessor securities, of record at the close of business on the relevant
record dates referred to on the face hereof, all as provided in the Indenture.]

      [The sinking fund for this Series provides for the redemption on
__________ in each year beginning with the year __________ and ending with the
year __________ of [not less than $__________ ("mandatory sinking fund") and not
more than] $__________ aggregate principal amount of Securities of this Series.
Securities of this Series acquired or redeemed by the Company otherwise than
through [mandatory] sinking fund payments may be credited against subsequent
[mandatory] sinking fund payments otherwise required to be made [in the inverse
order in which they become due).]

      [If the Security is subject to redemption, insert -- In the event of
redemption of this Security in part only, a new Security or Securities of this
Series and of like tenor for the unredeemed portion hereof will be issued in the
name of the Holder hereof upon the cancellation hereof.]

      The indebtedness evidenced by the Securities is subordinate to the prior
payment in full of all Senior Indebtedness (as such term is defined in the
Indenture). During the continuance beyond any applicable grace period of any
default in the payment of principal, premium, interest or any other payment due
on any Senior Indebtedness, no payment of principal 


                                      A-5
<PAGE>

of, or premium if any, or interest on the Securities shall be made by the
Company. In addition, upon any distribution of assets of the Company upon any
dissolution, winding up, liquidation or reorganization, the payment of the
principal of, or premium, if any, and interest on the Securities is to be
subordinated to the extent provided in the Indenture in right of payment to the
prior payment in full of all Senior Indebtedness. By reason of such
subordination, in the event of the Company's dissolution, holders of Senior
Indebtedness may receive more, ratably, and holders of the Debentures may
receive less, ratably, than the other creditors of the Company. Such
subordination will not prevent the occurrence of any Event of Default under the
Indenture. Each holder of this Securities, by accepting the same, agrees to and
shall be bound by such provisions and authorizes the Trustee on its behalf to
take such action as may be necessary or appropriate to effectuate the
subordination so provided and appoints the Trustee its attorney-in-fact for such
purpose.

      The Indenture contains provisions that permit the Company to elect either
(1) to defease and be discharged from the entire indebtedness of this Security
or (2) to be released from its obligations under certain restrictive covenants
and Events of Default with respect to this Security, in each case upon payment
in full of the Securities and compliance with certain conditions set forth in
the Indenture.

      [If the Security is convertible into common stock of the Company, insert
appropriate provisions and specify the conversion features and the form of
conversion notice pursuant to the Form of Conversion Notice set forth herein.]

      [If the Security is convertible into or exchangeable for other securities
or property, specify the conversion features and the form of conversion notice
pursuant to the Form of Conversion Notice set forth herein.]

      [If the Security is not an Original Issue Discount Security, insert -- If
an Event of Default with respect to Securities of this Series shall occur and be
continuing, the principal of the Securities of this Series may be declared due
and payable in the manner and with the effect provided in the Indenture.]

      [If the Security is an Original Issue-Discount Security, insert -- If an
Event of Default with respect to Securities of this Series shall occur and be
continuing, an amount of principal of the Securities of this Series may be
declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to -- Insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable
and (ii) of interest on any overdue principal and overdue interest (in each case
to the extent that the payment of such interest shall be legally enforceable),
all of the Company's obligations in respect of the payment of the principal of
and interest, if any, on the Securities of this Series shall terminate.]

      The Indenture permits the amendment thereof and the modification of the
rights and obligations of the Company and the rights of the Holders of the
Securities of each Series to be affected under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of a majority in
principal amount of the Securities at the time outstanding of each 


                                      A-6
<PAGE>

Series to be affected, with certain exceptions as therein provided with respect
to certain modifications or amendments which may not be made without the consent
of each Holder of such Security affected thereby. The Indenture also permits
certain amendments and modifications thereto from time to time by the Company
and the Trustee without the consent of the Holders of any Series of the
Securities to be affected thereby for certain specified purposes, including
curing ambiguities, defects or inconsistencies and making any such change that
does not adversely affect the rights of any Holder of such series of the
Securities, as provided therein.

      The Indenture contains provisions permitting the Holders of specified
percentages in principal amount of the Securities of each Series at the time
outstanding, on behalf of the Holders of all Securities of such Series, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange hereof or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.

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

      As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the security
register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of and any
premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Registrar duly executed by, the Holder hereof or his attorney
duly authorized in writing, and thereupon one or more new Securities of this
series and of like tenor, of authorized denominations and for the same aggregate
principal amount, will be issued to the designated transferee or transferees.

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

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

      Prior to due presentment of this Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the person in whose name this Security is registered as the owner hereof for all
purposes, whether or not this Security is 


                                      A-7
<PAGE>

overdue, and neither the Company, the Trustee nor any such agent shall be
affected by notice to the contrary.

      No recourse shall be had for the payment of the principal of (and premium,
if any) or interest on this Security, or for any claim based hereon, or
otherwise in respect hereof, or based on or in respect of the Indenture or any
indenture supplemental thereto, against any incorporator, stockholder, officer
or director, as such, past, present or future, of the Company or of any
successor corporation, whether by virtue of any constitution, statute or rule of
law, or by the enforcement of any assessment or penalty or otherwise, all such
liability being, by the acceptance hereof and as part of the consideration for
the issue hereof, expressly waived and released.

      All terms used in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture.

                           Form of Conversion Notice.

To Omnicon Group Inc.:

The undersigned owner of this Security hereby irrevocably exercises the option
to convert this Security, or portion hereof (which is $1,000 or an integral
multiple thereof) below designated, into [shares of common stock of the Company]
in accordance with the terms of the Indenture referred to in this Security, and
directs that the [shares] issuable and deliverable upon the conversion, together
with any check in payment for fractional shares of any securities representing
any unconverted principal amount hereof, be issued and delivered to the
registered holder hereof unless a different name has been indicated below. If
this Notice is being delivered on a date after the close of business on a
[regular] record date and prior to the opening of business on the related
interest payment date (unless this Security or the portion thereof being
converted has been called for redemption on a redemption date within such
period), this Notice is accompanied by payment, in funds acceptable to the
Company, of an amount equal to the interest payable on such interest payment
date of the principal of this Security to be converted. If shares are to be
issued in the name of a period other than the undersigned, the undersigned will
pay all transfer taxes payable with respect hereto. Any amount required to be
paid by the undersigned on account of interest accompanies this security.


                                      A-8



                                                                      Exhibit 12

                               OMNICOM GROUP INC.
                       Ratio of Earnings to Fixed Charges
                                    1992-1997
                                    ($000's)

<TABLE>
<CAPTION>
                                                                                                        1996          1997
                                      1992          1993         1994         1995         1996        Q3 YTD        Q3 YTD
                                      ----          ----         ----         ----         ----        ------        ------
<S>                                  <C>           <C>          <C>          <C>          <C>         <C>          <C>     
Earnings as defined:
Profit before tax as reported..      $116,196      $121,678     $188,914     $242,653     $305,231    $205,276     $260,614
Add: Dividends from affiliates.         5,833         6,357        7,838       15,146       15,442      10,167        6,386
   Interest expense............        51,390        47,105       40,485       43,271       34,067      26,745       30,923
   Interest factor re: rentals
   (as calculated below).......        44,106        49,888       50,851       56,357       67,023      50,251       57,910
                                     --------      --------     --------     --------     --------    --------     --------
Total earnings.................      $217,525      $225,028     $288,088     $357,427     $421,763    $292,439     $355,833
                                     ========      ========     ========     ========     ========    ========     ========

Fixed charges as defined:
Interest expense...............     $  51,390     $  47,105    $  40,485    $  43,271    $  34,067   $  26,745    $  30,923
Interest factor re: rentals
  (as calculated below)........        44,106        49,888       50,851       56,357       67,023      50,251       57,910
                                     --------      --------     --------     --------     --------    --------     --------

Total fixed charges............     $  95,496     $  96,993    $  91,336    $  99,628     $101,090   $  76,996    $  88,833
                                    =========     =========    =========    =========     ========   =========    =========


Ratio of earnings/
  Fixed charges................          2.28          2.32         3.15         3.59         4.17        3.80         4.01


Total rent.....................       132,317       149,664      152,553      169,072      201,069     150,752      173,731
Interest factor (1/3 of total).        44,106        49,888       50,851       56,357       67,023      50,251       57,910
</TABLE>

Notes:

1) Amortization of debt issuance costs and put premiums are included in interest
expense.



                                                                      Exhibit 23

                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

      As independent public accountants,  we hereby consent to the incorporation
by reference in this  Registration  Statement of our reports dated  February 18,
1997 included in Omnicom Group Inc.'s Form 10-K for the year ended  December 31,
1996 and to all references to our Firm included in this Registration Statement.


                                                  /s/ ARTHUR ANDERSEN LLP


New York, New York
February 12, 1998



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