Exhibit 4.2






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


                            RJR NABISCO HOLDINGS CORP.

                                        AND

                               THE BANK OF NEW YORK
                                    as Trustee


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


                           FIRST SUPPLEMENTAL INDENTURE

                            Dated as of ________, 1995


                                        TO

                                     INDENTURE


                            Dated as of ________, 1995


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


                       ____% Junior Subordinated Debentures
                                     Due 2044


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









             FIRST SUPPLEMENTAL INDENTURE, dated as of the ____ day of ______,
   1995 (the "First Supplemental Indenture"), between RJR NABISCO HOLDINGS
   CORP., a corporation duly organized and existing under the laws of the State
   of Delaware (hereinafter sometimes referred to as the "Company"), and The
   Bank of New York, a national banking association, as trustee (hereinafter
   sometimes referred to as the "Trustee") under the Indenture dated as of
   ________, 1995 between the Company and the Trustee (the "Indenture"; all
   terms used and not defined herein are used as defined in the Indenture),

             WHEREAS, the Company executed and delivered the Indenture to the
   Trustee to provide for the future issuance of its notes, debentures and other
   evidences of indebtedness (the "Securities"), said Securities to be issued
   from time to time in series as might be determined by the Company under the
   Indenture, in an unlimited aggregate principal amount which may be
   authenticated and delivered thereunder as in the Indenture provided; and

             WHEREAS, pursuant to the terms of the Indenture, the Company
   desires to provide for the establishment of a series of its junior
   subordinated debentures ("Debentures") to be known as its ____% Junior
   Subordinated Debentures Due 2044 (said series being hereinafter referred to
   as the "Junior Subordinated Debentures"), the form and substance of such
   Junior Subordinated Debentures and the terms, provisions and conditions
   thereof to be as provided in the Indenture and this First Supplemental
   Indenture; and

             WHEREAS, the Company has caused to be formed RJR Nabisco Holdings
   Capital Trust I (the "Trust") as a statutory business trust under the
   Business Trust Act of the State of Delaware (12 Del. Code Sec. 3801 et seq.)
                                                   ---  ----        -- ---
   pursuant to a declaration of trust dated June 20, 1995 (the "Original
   Declaration") and the filing of a certificate of trust with the Secretary of
   State of the State of Delaware on June 20, 1995; and

             WHEREAS, the Original Declaration is to be amended and restated in
   its entirety pursuant to an Amended and Restated Declaration of Trust dated
   as of ______, 1995 (such Amended and Restated Declaration of Trust, as
   amended from time to time, the "Declaration of Trust") with The Bank of New
   York, as Institutional Trustee; and

             WHEREAS, the Trust has offered (the "Offer") to issue its ____%
   Trust Originated Preferred Securities (the "Preferred Securities") to holders
   of Series B Depositary Shares ("Depositary Shares") each representing 1/1000
   of a 


                                         2




   share of the Series B Cumulative Preferred Stock ("Series B Preferred") of
   the Company in exchange for such Depositary Shares; and 

             WHEREAS, in connection with such Offer and the purchase by the
   Company of the Common Securities (as defined in the Declaration of Trust) of
   the Trust, the Company will deposit, and the Trust will purchase,
   respectively, as trust assets Junior Subordinated Debentures; and

             WHEREAS, pursuant to the Declaration of Trust, the legal title to
   the Junior Subordinated Debentures shall be owned and held of record in the
   name of the Trust in trust for the benefit of holders of the Preferred
   Securities and the Common Securities; and

             WHEREAS, upon the occurrence of a Special Event (as defined in the
   Declaration of Trust) the Regular Trustees (as defined in the Declaration of
   Trust) of the Trust shall, unless the Junior Subordinated Debentures are
   redeemed as described herein, dissolve the Trust and cause to be distributed
   to the holders of the Preferred Securities and Common Securities, on a Pro
   Rata basis (determined as provided in the terms of the Preferred Securities
   and Common Securities attached as Exhibits B and C to the Declaration of
   Trust), Junior Subordinated Debentures and in connection with a Liquidation
   Distribution (as defined in the Declaration of Trust) the Regular Trustees
   may cause to be distributed to holders of Preferred Securities and Common
   Securities, on such a Pro Rata basis, Junior Subordinated Debentures (each a
   "Dissolution Event"); and

             WHEREAS, the Company desires and has requested the Trustee to join
   with it in the execution and delivery of this First Supplemental Indenture,
   and all requirements necessary to make this First Supplemental Indenture a
   valid instrument, in accordance with its terms, and to make the Junior
   Subordinated Debentures, when executed by the Company and authenticated and
   delivered by the Trustee, the valid obligations of the Company, have been
   performed and fulfilled, and the execution and delivery hereof have been in
   all respects duly authorized;

             NOW THEREFORE, in consideration of the purchase and acceptance of
   the Junior Subordinated Debentures by the holders thereof, and for the
   purpose of setting forth, as provided in the Indenture, the form and
   substance of the Junior Subordinated Debentures and the terms, provisions and
   conditions thereof, the Company covenants and agrees with the Trustee as
   follows:


                                         3





                                    ARTICLE ONE

                          General Terms and Conditions of
                        the Junior Subordinated Debentures

             SECTION 1.01.  There shall be and is hereby authorized a series of
   Debentures designated the "___% Junior Subordinated Debentures Due 2044",
   limited in aggregate principal amount to the sum of (i) $__________ plus (ii)
   a dollar amount equal to the principal amount of Junior Subordinated
   Debentures purchased by the Trust with the proceeds received by the Trust
   from the purchase by the Company of the Common Securities of the Trust, which
   amount shall be as set forth in any written order of the Company for the
   authentication and delivery of Junior Subordinated Debentures.  The Junior
   Subordinated Debentures shall mature and the principal shall be due and
   payable together with all accrued and unpaid interest thereon, including
   Compounded Interest (as hereinafter defined) on December 31, 2044, and shall
   be issued in the form of registered Junior Subordinated Debentures without
   coupons.

             SECTION 1.02.  The Junior Subordinated Debentures shall be issued
   in certificated form.  Principal and interest on the Junior Subordinated
   Debentures issued in certificated form will be payable, the transfer of such
   Junior Subordinated Debentures will be registrable and such Junior
   Subordinated Debentures will be exchangeable for Junior Subordinated
   Debentures bearing identical terms and provisions at the office or agency of
   the Company in the Borough of Manhattan, The City and State of New York;
   provided, however, that payment of interest may be made at the option of the
   Company by check mailed to the registered holder at such address as shall
   appear in the Debenture register and that the payment of principal with
   respect to the Junior Subordinated Debentures will only be made upon
   surrender of the Junior Subordinated Debentures to the Trustee.  

             SECTION 1.03.  Each Junior Subordinated Debenture will bear
   interest at the rate of ___% per annum from ______, 1995 until the principal
   thereof becomes due and payable, and on any overdue principal and (to the
   extent that payment of such interest is enforceable under applicable law) on
   any overdue installment of interest at the same rate per annum, compounded
   quarterly, payable (subject to the provisions of Article Three) quarterly in
   arrears on March 31, June 30, September 30 and December 31 of each year
   (each, an "Interest Payment Date", commencing on September 30, 1995), to the
   person in whose name such Junior Subordinated Debenture or any predecessor
   Junior 


                                         4




   Subordinated Debenture is registered, at the close of business on the regular
   record date for such interest installment, which, except as set forth below,
   shall be the close of business on the business day next preceding that
   Interest Payment Date.  In addition, each Junior Subordinated Debenture will
   bear interest at the rate of      9 1/4% per annum from June 1, 1995 through
   ______, 1995 ("Pre-issuance Interest"), payable on September 30, 1995, to the
   person in whose name such Junior Subordinated Debenture is registered at the
   close of business on the regular record date for such Interest Payment Date. 
   With the exception of the interest payment described in the immediately
   preceding sentence, any such interest installment not punctually paid or duly
   provided for shall forthwith cease to be payable to the registered holders on
   such regular record date, and may be paid to the person in whose name the
   Junior Subordinated Debenture (or one or more Predecessor Debentures) is
   registered at the close of business on a special record date to be fixed by
   the Trustee for the payment of such defaulted interest, notice whereof shall
   be given to the registered holders of the Junior Subordinated Debentures not
   less than 10 days prior to such special record date, or may be paid at any
   time in any other lawful manner not inconsistent with the requirements of any
   securities exchange on which the Junior Subordinated Debentures may be
   listed, and upon such notice as may be required by such exchange, all as more
   fully provided in the Indenture. 

             The amount of interest payable for any period will be computed on
   the basis of a 360-day year of twelve 30-day months and for any period
   shorter than a full quarterly interest period for which interest is computed,
   the amount of interest payable will be computed on the basis of the actual
   number of days elapsed in such a 30-day month.  In the event that any date on
   which interest is payable on the Junior Subordinated Debentures is not a
   business day, then payment of interest payable on such date will be made on
   the next succeeding day which is a business day (and without any interest or
   other payment in respect of any such delay), except that, if such business
   day is in the next succeeding calendar year, such payment shall be made on
   the immediately preceding business day (and the regular record date for such
   interest installment shall be the business day next preceding such Interest
   Payment Date), in each case with the same force and effect as if made on such
   date.


                                         5




                                    ARTICLE TWO

                                Optional Redemption
                       of the Junior Subordinated Debentures

             SECTION 2.01.  Except as provided in Section 2.02, Junior
   Subordinated Debentures may not be redeemed by the Company prior to August
   19, 1998.  Subject to the terms of Article Three of the Indenture, the
   Company shall have the right to redeem the Junior Subordinated Debentures, in
   whole or in part, from time to time, on or after August 19, 1998, at a
   redemption price equal to 100% of the principal amount to be redeemed plus
   any accrued and unpaid interest thereon, including Compounded Interest, if
   any, to the date of such redemption (the "Optional Redemption Price").  Any
   redemption pursuant to this paragraph will be made upon not less than 30 nor
   more than 60 days' notice, at the Optional Redemption Price.

             SECTION 2.02.  If, at any time, a Tax Event (as defined below)
   shall occur or be continuing and (i) the Regular Trustees and the Company
   shall have received an opinion (a "Redemption Tax Opinion") of a nationally
   recognized independent tax counsel experienced in such matters that, as a
   result of a Tax Event, there is more than an insubstantial risk that the
   Company would be precluded from deducting the interest on the Junior
   Subordinated Debentures for United States federal income tax purposes even if
   the Junior Subordinated Debentures were distributed to the holders of
   Preferred Securities and Common Securities in liquidation of such holder's
   interest in the Trust as set forth in the Declaration of Trust or (ii) the
   Regular Trustees shall have been informed by such tax counsel that a No
   Recognition Opinion (as defined below) cannot be delivered to the Trust, the
   Company shall have the right at any time, upon not less than 30 nor more than
   60 days' notice, to redeem the Junior Subordinated Debentures in whole or in
   part for cash at the Optional Redemption Price within 90 days following the
   occurrence of such Tax Event; provided, however, that, if at the time there
   is available to the Company or the Regular Trustees on behalf of the Trust
   the opportunity to eliminate, within such 90 day period, the Tax Event by
   taking some ministerial action ("Ministerial Action"), such as filing a form
   or making an election, or pursuing some other similar reasonable measure,
   which has no adverse effect on the Trust, the Company or the holders of the
   Preferred Securities, the Company or the Regular Trustees on behalf of the
   Trust will pursue such measure in lieu of redemption and provided further
   that the Company shall have no right to redeem the Junior 


                                         6




   Subordinated Debentures while the Regular Trustees on behalf of the Trust are
   pursuing any such Ministerial Action.

             "Tax Event" means that the Company and the Regular Trustees shall
   have obtained an opinion of nationally recognized independent tax counsel
   experienced in such matters (a "Dissolution Tax Opinion") to the effect that
   on or after ______, 1995, as a result of (a) any amendment to, or change
   (including any announced prospective change) in, the laws (or any regulations
   thereunder) of the United States or any political subdivision or taxing
   authority thereof or therein, (b) any amendment to, or change in, an
   interpretation or application of any such laws or regulations by any
   legislative body, court, governmental agency or regulatory authority
   (including the enactment of any legislation and the publication of any
   judicial decision or regulatory determination), (c) any interpretation or
   pronouncement that provides for a position with respect to such laws or
   regulations that differs from the theretofore generally accepted position or
   (d) any action taken by any governmental agency or regulatory authority,
   which amendment or change is enacted, promulgated, issued or announced or
   which interpretation or pronouncement is issued or announced or which action
   is taken, in each case on or after ______, 1995, there is more than an
   insubstantial risk that (i) the Trust is, or will be within 90 days of the
   date thereof, subject to United States federal income tax with respect to
   income accrued or received on the Junior Subordinated Debentures, (ii) the
   Trust is, or will be within 90 days of the date thereof, subject to more than
   a de minimis amount of taxes, duties or other governmental charges or (iii)
   interest payable by the Company to the Trust on the Junior Subordinated
   Debentures is not, or within 90 days of the date thereof will not be,
   deductible by the Company for United States federal income tax purposes.

             "No Recognition Opinion" means an opinion of a nationally
   recognized independent tax counsel experienced in such matters, which opinion
   may rely on any then applicable published revenue ruling of the Internal
   Revenue Service, to the effect that the holders of the Preferred Securities
   will not recognize any gain or loss for United States federal income tax
   purposes as a result of a dissolution of the Trust and distribution of the
   Junior Subordinated Debentures as provided in the Declaration of Trust.

             SECTION 2.03.  If the Junior Subordinated Debentures are only
   partially redeemed pursuant to this Article Two, the Junior Subordinated
   Debentures will be redeemed pro rata or by lot or by any other method
   utilized by the Trustee.  Notwithstanding the foregoing, if a partial 


                                         7




   redemption of the Junior Subordinated Debentures would result in the
   delisting of the Preferred Securities by any national securities exchange or
   other organization on which the Preferred Securities are then listed, the
   Company shall not be permitted to effect such partial redemption and will
   only redeem the Junior Subordinated Debentures in whole.


                                   ARTICLE THREE

                       Extension of Interest Payment Period

             SECTION 3.01.  So long as the Company is not in default in the
   payment of interest on the Junior Subordinated Debentures, the Company shall
   have the right, at any time during the term of the Junior Subordinated
   Debentures, from time to time to extend the interest payment period of such
   Junior Subordinated Debentures (other than with respect to Pre-issuance
   Interest) for up to 20 consecutive quarterly interest periods (the "Extended
   Interest Payment Period"), at the end of which period the Company shall pay
   all interest accrued and unpaid thereon (together with interest thereon at
   the rate of ___% per annum to the extent permitted by applicable law,
   compounded quarterly ("Compounded Interest")).  During such Extended Interest
   Payment Period the Company shall not declare or pay any dividend on, or
   redeem, purchase, acquire or make a distribution or liquidation payment with
   respect to, any of its common stock or preferred stock, or make any guarantee
   payments with respect thereto; provided that the Company may pay accrued
   dividends (and cash in lieu of fractional shares) upon mandatory conversion
   of any of its preferred stock, including its Series C Conversion Preferred
   Stock and ESOP Convertible Preferred Stock, in accordance with the terms of
   such stock.  Prior to the termination of any such Extended Interest Payment
   Period, the Company may pay all or any portion of the interest accrued on the
   Junior Subordinated Debentures on any Interest Payment Date to holders of
   record on the regular record date for such Interest Payment Date or from time
   to time further extend such Period, provided that such Period together with
   all such further extensions thereof shall not exceed 20 consecutive quarterly
   interest periods.  Upon the termination of any Extended Interest Payment
   Period and upon the payment of all accrued and unpaid interest then due,
   together with Compounded Interest, the Company may select a new Extended
   Interest Payment Period, subject to the foregoing requirements.  No interest
   shall be due and payable during an Extended Interest Payment Period, except
   at the end thereof.  At the end of the Extended Interest Payment Period the
   Company shall pay all interest accrued 


                                         8




   and unpaid on the Junior Subordinated Debentures including any Compounded
   Interest which shall be payable to the holders of the Junior Subordinated
   Debentures in whose names the Junior Subordinated Debentures are registered
   in the Debenture register on the record date for the first interest payment
   date occurring on or after the end of the Extended Interest Payment Period.  

             SECTION 3.02.  (a)  So long as the Trust is the legal owner and
   holder of record of the Junior Subordinated Debentures, at the time the
   Company selects an Extended Interest Payment Period, the Company shall give
   both the Institutional Trustee and the Trustee written notice of its
   selection of such Extended Interest Payment Period one business day prior to
   the earlier of (i) the next succeeding date on which distributions on the
   Preferred Securities are payable or (ii) the date the Trust is required to
   give notice of the record date or the date such distributions are payable to
   the New York Stock Exchange or other applicable self-regulatory organization
   or to holders of the Preferred Securities, but in any event not less than one
   business day prior to such record date.  The Company shall cause the Trust to
   give notice of the Company's selection of such Extended Interest Payment
   Period to the holders of the Preferred Securities.

             (b)  If as a result of a Dissolution Event, Junior Subordinated
   Debentures have been distributed to holders of Preferred Securities and
   Common Securities, at the time the Company selects an Extended Interest
   Payment Period, the Company shall give the holders of the Junior Subordinated
   Debentures and the Trustee written notice of its selection of such Extended
   Interest Payment Period 10 business days prior to the earlier of (i) the next
   succeeding Interest Payment Date or (ii) the date the Company is required to
   give notice of the record or payment date of such interest payment to the New
   York Stock Exchange or other applicable self-regulatory organization or to
   holders of the Junior Subordinated Debentures.

             SECTION 3.03.  The quarter in which any notice is given pursuant to
   Section 3.02 shall be counted as one of the 20 quarters permitted in the
   maximum Extended Interest Payment Period permitted under this Article Three.


                                   ARTICLE FOUR

              Covenants Applicable to Junior Subordinated Debentures


                                         9





             SECTION 4.01.  So long as any Preferred Securities remain
   outstanding, the Company will not declare or pay any dividend on, or redeem,
   purchase, acquire or make a distribution or liquidation payment with respect
   to, any of its common stock or preferred stock, or make any guarantee
   payments with respect thereto, if at such time (i) the Company shall be in
   default with respect to its Guarantee Payments (as defined in the Guarantee
   Agreement) or other payment obligations under the Guarantee Agreement, (ii)
   there shall have occurred any Event of Default under the Indenture with
   respect to the Junior Subordinated Debentures or (iii) the Company shall have
   given notice of its selection of an Extended Interest Payment Period and such
   Period, or any extension thereof, is continuing; provided that the Company
   will be permitted to pay accrued dividends (and cash in lieu of fractional
   shares) upon the conversion of any of its preferred stock, including its
   Series C Conversion Preferred Stock and ESOP Convertible Preferred Stock, in
   accordance with the terms of such stock.

             SECTION 4.02.  In connection with the distribution of the Junior
   Subordinated Debentures to the holders of the Preferred Securities upon a
   Dissolution Event, the Company will use its best efforts to list such Junior
   Subordinated Debentures on the New York Stock Exchange or on such other
   exchange as the Preferred Securities are then listed and traded.

             SECTION 4.03.  The Company covenants and agrees for the benefit of
   the holders of the Preferred Securities to comply fully with all of its
   obligations and agreements under the Declaration of Trust, including, without
   limitation, its obligations under Article IV thereof.

             SECTION 4.04.  Prior to the distribution of Junior Subordinated
   Debentures to the holders of Preferred Securities upon a Dissolution Event,
   the Company covenants and agrees for the benefit of the holders of the
   Preferred Securities (i) not to cause or permit the Common Securities to be
   transferred except as permitted by the Declaration of Trust and (ii) not to
   take any action which would cause the Trust to cease to be treated as a
   grantor trust for United States federal income tax purposes, except in
   connection with a distribution of the Junior Subordinated Debentures as
   provided in the Declaration of Trust.


                                   ARTICLE FIVE

                      Form of Junior Subordinated Debentures


                                        10




             SECTION 5.01.  The Junior Subordinated Debentures and the Trustee's
   Certificate of Authentication to be endorsed thereon are to be substantially
   in the following forms:


                            (FORM OF FACE OF DEBENTURE)

   No.                                     $

   CUSIP NO.  _________

                            RJR NABISCO HOLDINGS CORP.

                         ___% JUNIOR SUBORDINATED DEBENTURE,
                                SERIES A, DUE 2044

             RJR Nabisco Holdings Corp., a corporation duly organized and
   existing under the laws of the State of Delaware (herein referred to as the
   "Company", which term includes any successor corporation under the Indenture
   hereinafter referred to), for value received, hereby promises to payto       
                                                                          ------
                , or registered assigns, the principal sum of _________ Dollars
   -------------
   on December 31, 2044, and to pay interest on said principal sum from ______,
   1995 or from the most recent interest payment date (each such date, an
   "Interest Payment Date") to which interest has been paid or duly provided
   for, quarterly (subject to deferral as set forth herein) in arrears on March
   31, June 30, September 30 and December 31 of each year commencing September
   30, 1995 at the rate of ___% per annum plus Compounded Interest, if any,
   until the principal hereof shall have become due and payable, and on any
   overdue principal and premium, if any, and (without duplication and to the
   extent that payment of such interest is enforceable under applicable law) on
   any overdue installment of interest at the same rate per annum.  In addition,
   the Company promises to pay to such holder or registered assigns interest at
   the rate of 9 1/4% per annum from June 1, 1995 through ______, 1995 ("Pre-
   issuance Interest"), payable on September 30, 1995.  The amount of interest
   payable on any Interest Payment Date shall be computed on the basis of a 360-
   day year of twelve 30-day months and for any period shorter than a full
   quarterly interest period for which interest is computed, the amount of
   interest payable will be computed on the basis of the actual number of days
   elapsed in such a 30-day month.  In the event that any date on which interest
   is payable on this Debenture is not a business day, then payment of interest
   payable on such date will be made on the next succeeding day which is a
   business day (and without any interest or other payment in respect of any
   such 


                                        11




   delay), except that, if such business day is in the next succeeding calendar
   year, such payment shall be made on the immediately preceding business day,
   in each case with the same force and effect as if made on such date.  The
   interest installment so payable, and punctually paid or duly provided for, on
   any Interest Payment Date will, as provided in the Indenture, be paid to the
   person in whose name this Debenture (or one or more Predecessor Debentures,
   as defined in said Indenture) is registered at the close of business on the
   regular record date for such interest installment, which shall be the close
   of business on the business day next preceding such Interest Payment Date. 
   With the exception of the Pre-Issuance Interest, any such interest
   installment not punctually paid or duly provided for shall forthwith cease to
   be payable to the registered holders on such regular record date, and may be
   paid to the person in whose name this Debenture (or one or more Predecessor
   Debentures) is registered at the close of business on a special record date
   to be fixed by the Trustee for the payment of such defaulted interest, notice
   whereof shall be given to the registered holders of this series of Debentures
   not less than 10 days prior to such special record date, or may be paid at
   any time in any other lawful manner not inconsistent with the requirements of
   any securities exchange on which the Debentures may be listed, and upon such
   notice as may be required by such exchange, all as more fully provided in the
   Indenture.  The principal of (and premium, if any) and the interest on this
   Debenture shall be payable at the office or agency of the Company maintained
   for that purpose in the Borough of Manhattan, The City and State of New York,
   in any coin or currency of the United States of America which at the time of
   payment is legal tender for payment of public and private debts; provided,
   however, that payment of interest may be made at the option of the Company by
   check mailed to the registered holder at such address as shall appear in the
   Debenture register and that the payment of principal will only be made upon
   the surrender of this Debenture to the Trustee.  Notwithstanding the
   foregoing, so long as the owner and record holder of this Debenture is the
   Trust (as defined in the Indenture referred to on the reverse hereof), the
   payment of the principal of (and premium, if any) and interest (including
   Compounded Interest, if any) on this Debenture will be made at such place and
   to such account of the Trust as may be designated by the Institutional
   Trustee.

             The indebtedness evidenced by this Debenture is, to the extent
   provided in the Indenture, subordinate and subject in right of payment to the
   prior payment in full of all Senior Obligations, and this Debenture is issued
   subject to the provisions of the Indenture with respect thereto.  


                                        12




   Each Holder of this Debenture, by accepting the same, (a) agrees to and shall
   be bound by such provisions, (b) authorizes and directs the Trustee on his
   behalf to take such action as may be necessary or appropriate to acknowledge
   or effectuate the subordination so provided and (c) appoints the Trustee his
   attorney-in-fact for any and all such purposes.  Each Holder hereof, by his
   acceptance hereof, hereby waives all notice of the acceptance of the
   subordination provisions contained herein and in the Indenture by each holder
   of Senior Obligations, whether now outstanding or hereafter incurred, and
   waives reliance by each such Holder upon said provisions.

             This Debenture shall not be entitled to any benefit under the
   Indenture hereinafter referred to, be valid or become obligatory for any
   purpose until the Certificate of Authentication hereon shall have been signed
   by or on behalf of the Trustee.

             Unless the Certificate of Authentication hereon has been executed
   by the Trustee referred to on the reverse side hereof, this Debenture shall
   not be entitled to any benefit under the Indenture or be valid or obligatory
   for any purpose.

             The provisions of this Debenture are continued on the reverse side
   hereof and such continued provisions shall for all purposes have the same
   effect as though fully set forth at this place.

             IN WITNESS WHEREOF, the Company has caused this Instrument to be
   executed.

   Dated                    
          ------------------

                                 RJR NABISCO HOLDINGS CORP.


                                 By                            
                                   ---------------------------
                                   

   Attest:


   By                    
     --------------------
          Secretary

                      (FORM OF CERTIFICATE OF AUTHENTICATION)

                           CERTIFICATE OF AUTHENTICATION


                                        13




             This is one of the Debentures of the series of Debentures described
   in the within-mentioned Indenture.


   ________________________________,
     as Trustee                          


                                                               
                                      -------------------------
                                 or   as Authentication Agent

   By                                                          
     ------------------------         -------------------------
       Authorized Signatory                   Authorized Signatory


                          (FORM OF REVERSE OF DEBENTURE)

             This Debenture is one of a duly authorized series of debentures of
   the Company (herein sometimes referred to as the "Debentures"), all issued or
   to be issued in one or more series under and pursuant to an Indenture dated
   as of ________, 1995 duly executed and delivered between the Company and The
   Bank of New York, a national banking association, as Trustee (herein referred
   to as the "Trustee"), as supplemented by the First Supplemental Indenture
   dated as of ________, 1995 between the Company and the Trustee (said
   Indenture as so supplemented being hereinafter referred to as the
   "Indenture"), to which Indenture and all indentures supplemental thereto
   reference is hereby made for a description of the rights, limitations of
   rights, obligations, duties and immunities thereunder of the Trustee, the
   Company and the holders of the Debentures, and, to the extent specifically
   set forth in the Indenture, the holders of Senior Indebtedness and Preferred
   Securities.  By the terms of the Indenture, the Debentures are issuable in
   series which may vary as to amount, date of maturity, rate of interest and in
   other respects as in the Indenture provided.  This series of Debentures is
   designated the ___% Junior Subordinated Debentures due 2044 and is limited in
   aggregate principal amount as specified in said First Supplemental Indenture.

             Except as provided in the next paragraph, the Debentures may not be
   redeemed by the Company prior to August 19, 1998.  The Company shall have the
   right to redeem this Debenture at the option of the Company, without premium
   or penalty, in whole or in part at any time on or after August 19, 1998 (an
   "Optional Redemption"), at a redemption price equal to 100% of the principal
   amount plus any accrued but unpaid interest, including any Compounded
   Interest, if any, to the date of such redemption (the "Optional 


                                        14




   Redemption Price").  Any redemption pursuant to this paragraph will be made
   upon not less than 30 nor more than 60 days' notice, at the Optional
   Redemption Price.  

             If, at any time, a Tax Event (as defined below) shall occur or be
   continuing after receipt of a Dissolution Tax Opinion (as defined below) and
   (i) the Regular Trustees and the Company shall have received an opinion (a
   "Redemption Tax Opinion") of a nationally recognized independent tax counsel
   experienced in such matters that, as a result of a Tax Event, there is more
   than an insubstantial risk that the Company would be precluded from deducting
   the interest on the Junior Subordinated Debentures for United States federal
   income tax purposes even if the Junior Subordinated Debentures were
   distributed to the holders of Preferred Securities and Common Securities in
   liquidation of such holder's interest in the Trust as set forth in the
   Declaration of Trust or (ii) the Regular Trustees shall have been informed by
   such tax counsel that a No Recognition Opinion (as defined below) cannot be
   delivered to the Trust, the Company shall have the right at any time, upon
   not less than 30 nor more than 60 days' notice, to redeem the Junior
   Subordinated Debentures in whole or in part for cash at the Optional
   Redemption Price within 90 days following the occurrence of such Tax Event;
   provided, however, that, if at the time there is available to the Company or
   the Regular Trustees on behalf of the Trust the opportunity to eliminate,
   within such 90 day period, the Tax Event by taking some ministerial action
   ("Ministerial Action"), such as filing a form or making an election, or
   pursuing some other similar reasonable measure, which has no adverse effect
   on the Trust, the Company or the holders of the Preferred Securities, the
   Company or the Regular Trustees on behalf of the Trust will pursue such
   measure in lieu of redemption and provided further that the Company shall
   have no right to redeem the Junior Subordinated Debentures while the Regular
   Trustees on behalf of the Trust are pursuing any such Ministerial Action.

             "Tax Event" means that the Company and the Regular Trustees shall
   have obtained an opinion of nationally recognized independent tax counsel
   experienced in such matters (a "Dissolution Tax Opinion") to the effect that
   on or after ______, 1995, as a result of (a) any amendment to, or change
   (including any announced prospective change) in, the laws (or any regulations
   thereunder) of the United States or any political subdivision or taxing
   authority thereof or therein, (b) any amendment to, or change in, an
   interpretation or application of any such laws or regulations by any
   legislative body, court, governmental agency or regulatory authority
   (including the enactment of 


                                        15




   any legislation and the publication of any judicial decision or regulatory
   determination), (c) any interpretation or pronouncement that provides for a
   position with respect to such laws or regulations that differs from the
   theretofore generally accepted position or (d) any action taken by any
   governmental agency or regulatory authority, which amendment or change is
   enacted, promulgated, issued or announced or which interpretation or
   pronouncement is issued or announced or which action is taken, in each case
   on or after ______, 1995, there is more than an insubstantial risk that (i)
   the Trust is, or will be within 90 days of the date thereof, subject to
   United States federal income tax with respect to income accrued or received
   on the Junior Subordinated Debentures, (ii) the Trust is, or will be within
   90 days of the date thereof, subject to more than a de minimis amount of
   taxes, duties or other governmental charges or (iii) interest payable by the
   Company to the Trust on the Junior Subordinated Debentures is not, or within
   90 days of the date thereof will not be, deductible by the Company for United
   States federal income tax purposes.

             "No Recognition Opinion" means an opinion of a nationally
   recognized independent tax counsel experienced in such matters, which opinion
   may rely on any then applicable published revenue ruling of the Internal
   Revenue Service, to the effect that the holders of the Preferred Securities
   will not recognize any gain or loss for United States federal income tax
   purposes as a result of a dissolution of the Trust and distribution of the
   Junior Subordinated Debentures as provided in the Declaration of Trust.

             If the Debentures are only partially redeemed by the Company
   pursuant to an Optional Redemption or as a result of a Tax Event as described
   above, the Debentures will be redeemed pro rata or by lot or in some other
   equitable manner determined by the Trustee.  Notwithstanding the foregoing,
   if a partial redemption of the Junior Subordinated Debentures would result in
   the delisting of the Preferred Securities by any national securities exchange
   or other organization on which the Preferred Securities are then listed, the
   Company shall not be permitted to effect such partial redemption and will
   only redeem the Junior Subordinated Debentures in whole.

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

             In case an Event of Default, as defined in the Indenture, shall
   have occurred and be continuing, the 


                                        16




   principal of all of the Debentures may be declared, and upon such declaration
   shall become, due and payable, in the manner, with the effect and subject to
   the conditions provided in the Indenture.

             The Indenture contains provisions for defeasance at any time of the
   entire indebtedness of this Debenture upon compliance by the Company with
   certain conditions set forth therein.

             The Indenture contains provisions permitting the Company and the
   Trustee, with the consent of the Holders of not less than a majority in
   aggregate principal amount of the Debentures of all series affected at the
   time outstanding, as defined in the Indenture (and, in the case of any series
   of Debentures held as trust assets of a RJR Nabisco Holdings Capital Trust
   and with respect to which a Security Exchange has not theretofore occurred,
   such consent of holders of the Preferred Securities and the Common Securities
   of such RJR Nabisco Holdings Capital Trust as may be required under the
   Declaration of Trust of such RJR Nabisco Holdings Capital Trust), to execute
   supplemental indentures for the purpose of adding any provisions to or
   changing in any manner or eliminating any of the provisions of the Indenture
   or of any supplemental indenture or of modifying in any manner the rights of
   the Holders of the Debentures; provided, however, that no such supplemental
   indenture shall (i) extend the fixed maturity of any Debentures of any
   series, or reduce the principal amount thereof, or reduce the rate or extend
   the time of payment of interest thereon, or reduce any premium payable upon
   the redemption thereof, without the consent of the holder of each Debenture
   so affected or (ii) reduce the aforesaid percentage of Debentures, the
   holders of which are required to consent to any such supplemental indenture,
   without the consent of the holders of each Debenture (and, in the case of any
   series of Debentures held as trust assets of a RJR Nabisco Holdings Capital
   Trust and with respect to which a Security Exchange has not theretofore
   occurred, such consent of the holders of the Preferred Securities and the
   Common Securities of such RJR Nabisco Holdings Capital Trust as may be
   required under the Declaration of Trust of such RJR Nabisco Holdings Capital
   Trust) then outstanding and affected thereby.  The Indenture also contains
   provisions permitting the Holders of a majority in aggregate principal amount
   of the Debentures of all series at the time outstanding affected thereby
   (subject, in the case of any series of Debentures held as trust assets of a
   RJR Nabisco Holdings Capital Trust and with respect to which a Securities
   Exchange has not theretofore occurred, to such consent of holders of
   Preferred Securities and Common 


                                        17




   Securities of such RJR Nabisco Holdings Capital Trust as may be required
   under the Declaration of Trust of such RJR Nabisco Holdings Capital Trust),
   on behalf of the Holders of the Debentures of such series, to waive any past
   default in the performance of any of the covenants contained in the
   Indenture, or established pursuant to the Indenture with respect to such
   series, and its consequences, except a default in the payment of the
   principal of or premium, if any, or interest on any of the Debentures of such
   series.  Any such consent or waiver by the registered Holder of this
   Debenture (unless revoked as provided in the Indenture) shall be conclusive
   and binding upon such Holder and upon all future Holders and owners of this
   Debenture and of any Debenture issued in exchange herefor or in place hereof
   (whether by registration of transfer or otherwise), irrespective of whether
   or not any notation of such consent or waiver is made upon this Debenture.

             Subject to Section 13.13 of the Indenture, no reference herein to
   the Indenture (other than such Section) and no provision of this Debenture or
   of the Indenture shall alter or impair the obligation of the Company, which
   is absolute and unconditional, to pay the principal of and premium, if any,
   and interest on this Debenture at the time and place at the rate and in the
   money herein prescribed.

             So long as the Company is not in default in the payment of interest
   on the Debentures, the Company shall have the right, at any time during the
   term of the Debentures, from time to time to extend the interest payment
   period of such Debentures (other than with respect to Pre-issuance Interest)
   for up to 20 consecutive quarterly interest periods (the "Extended Interest
   Payment Period"), at the end of which period the Company shall pay all
   interest then accrued and unpaid (together with interest thereon at the rate
   of ___% per annum compounded quarterly to the extent permitted by applicable
   law ("Compounded Interest")).  During such Extended Interest Payment Period
   the Company shall not declare or pay any dividend on, or redeem, purchase,
   acquire or make a distribution or liquidation payment with respect to, any of
   its common stock or preferred stock, or make any guarantee payments with
   respect thereto, provided that the Company may pay accrued dividends (and
   cash in lieu of fractional shares) upon mandatory conversion of any of its
   preferred stock, including its Series C Conversion Preferred Stock and ESOP
   Convertible Preferred Stock, in accordance with the terms of such Stock. 
   Prior to the termination of any such Extended Interest Payment Period, the
   Company may pay all or any portion of the interest accrued on the Debentures
   on any Interest Payment Date to holders of record on the regular 
   
                                        18



   record date for such Interest Payment Date or from time to time further 
   extend such Extended Interest Payment Period, provided that such Period 
   together with all such further extensions thereof shall not exceed 20 
   consecutive quarterly interest periods.  At the termination of any such 
   Extended Interest Payment Period and upon the payment of all accrued and 
   unpaid interest then due, together with Compounded Interest, the Company 
   may select a new Extended Interest Payment Period, subject to the foregoing
   requirements.  No interest on this Debenture shall be due and payable during
   an Extended Interest Payment Period, except at the end thereof.  At the end 
   of the Extended Interest Payment Period the Company shall pay all interest 
   accrued and unpaid  on the Junior Subordinated Debentures including any 
   Compounded Interest which shall be payable to the holders of the Junior 
   Subordinated Debentures in whose names the Junior Subordinated Debentures 
   are registered in the Debenture register on the record date for the first 
   interest payment date occurring on or after the end of the Extended Interest
   Payment Period.

             As provided in the Indenture and subject to certain limitations
   therein set forth, this Debenture is transferable by the registered holder
   hereof on the Debenture register of the Company, upon surrender of this
   Debenture for registration of transfer at the office or agency of the Company
   in the Borough of Manhattan, The City and State of New York accompanied by a
   written instrument or instruments of transfer in form satisfactory to the
   Company or the Trustee duly executed by the registered holder hereof or his
   attorney duly authorized in writing, and thereupon one or more new Debentures
   of authorized denominations and for the same aggregate principal amount and
   series will be issued to the designated transferee or transferees.  No
   service charge will be made for any such transfer, but the Company may
   require payment of a sum sufficient to cover any tax or other governmental
   charge payable in relation thereto.

             Prior to due presentment for registration of transfer of this
   Debenture, the Company, the Trustee, any paying agent and any Debenture
   Registrar may deem and treat the registered holder hereof as the absolute
   owner hereof (whether or not this Debenture shall be overdue and
   notwithstanding any notice of ownership or writing hereon made by anyone
   other than the Debenture Registrar) for the purpose of receiving payment of
   or on account of the principal hereof and premium, if any, and interest due
   hereon and for all other purposes, and neither the Company nor the Trustee
   nor any paying agent nor any Debenture Registrar shall be affected by any
   notice to the contrary.


                                        19




             No recourse shall be had for the payment of the principal of or the
   interest on this Debenture, or for any claim based hereon, or otherwise in
   respect hereof, or based on or in respect of the Indenture, against any
   incorporator, stockholder, officer or director, past, present or future, as
   such, of the Company or of any predecessor or 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 issuance hereof,
   expressly waived and released.

             The Debentures of this series are issuable only in registered form
   without coupons in denominations of $25 and any integral multiple thereto. 
   As provided in the Indenture and subject to certain limitations therein set
   forth, Debentures of this Series are exchangeable for a like aggregate
   principal amount of Debentures of this series of a different authorized
   denomination, as requested by the Holder surrendering the same.

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


                                    ARTICLE SIX

                 Original Issue of Junior Subordinated Debentures

             SECTION 6.01.  Junior Subordinated Debentures in the aggregate
   principal amount equal to the sum of $__________ plus a dollar amount equal
   to the principal amount of Junior Subordinated Debentures purchased by the
   Trust with the proceeds received by the Trust from the purchase by the
   Company of the Common Securities of the Trust, may, upon execution of this
   First Supplemental Indenture, be executed by the Company and delivered to the
   Trustee for authentication, and the trustee shall thereupon authenticate and
   deliver said Debentures to or upon the written order of the Company, signed
   by its Chairman, its President, or any Vice President and its Treasurer or an
   Assistant Treasurer, without any further action by the Company.


                                        20




                                   ARTICLE SEVEN

                             Miscellaneous Provisions

             SECTION 7.01.  Except as otherwise expressly provided in this First
   Supplemental Indenture or in the form of Junior Subordinated Debenture or
   otherwise clearly required by the context hereof or thereof, all terms used
   herein or in said form of Junior Subordinated Debenture that are defined in
   the Indenture shall have the several meanings respectively assigned to them
   thereby.

             SECTION 7.02.  The Indenture, as supplemented by this First
   Supplemental Indenture, is in all respects ratified and confirmed, and this
   First Supplemental Indenture shall be deemed part of the Indenture in the
   manner and to the extent herein and therein provided.

             SECTION 7.03.  The recitals herein contained are made by the
   Company and not by the Trustee, and the Trustee assumes no responsibility for
   the correctness thereof.  The Trustee makes no representation as to the
   validity or sufficiency of this First Supplemental Indenture.

             SECTION 7.04.  This First Supplemental Indenture may be executed in
   any number of counterparts each of which shall be an original; but such
   counterparts shall together constitute but one and the same instrument.


                                        21




             IN WITNESS WHEREOF, the parties hereto have caused this First
   Supplemental Indenture to be duly executed, and their respective corporate
   seals to be hereunto affixed and attested, on the date or dates indicated in
   the acknowledgments and as of the day and year first above written.


                                           RJR NABISCO HOLDINGS CORP.


                                           By                            
                                              ---------------------------
                                              Name:                  
                                              Title:                        
       

   Attest:



   -------------------------
   Name:
   Title:


                                           THE BANK OF NEW YORK, as Trustee


                                           By                            
                                             ----------------------------
                                             Name:               
                                             Title:               

   Attest:



   --------------------------
   Assistant Secretary


                                          22





             STATE OF NEW YORK        )
                                      )    ss.:
             COUNTY OF New York       )                        _______, 1995


                       On the ______ day of ____, in the year one
             thousand nine hundred ninety-five, before me personally came
             ________________ to me known, who, being by me duly sworn,
             did depose and say that he resides at ____________________
             ___________________________________; that he is ____________
             ______________________ of RJR NABISCO HOLDINGS CORP., one of
             the corporations described in and which executed the above
             instrument; that he knows the corporate seal of said
             corporation; that the seal affixed to the said instrument is
             such corporation seal; that it was so affixed by authority
             of the Board of Directors of said corporation, and that he
             signed his name thereto by like authority.


                                                                        
                                                ------------------------
                                                     NOTARY PUBLIC

                                                My Commission Expires


             STATE OF NEW YORK        )
                                      )    ss.:
             COUNTY OF New York       )                   _______, 1995


                       On the ______ day of ____, in the year one
             thousand nine hundred ninety-five, before me personally came
             ____________ to me known, who, being by me duly sworn, did
             depose and say that he resides at ________________________
             ________________, that he is a __________________of The Bank
             of New York, one of the corporations described in and which
             executed the above instrument; that he knows the corporate
             seal of said corporation; that the seal affixed to said
             instrument is such corporate seal; that it was so affixed by
             authority of the Board of Directors of said corporation and
             that he signed his name thereto by like authority.


                                                                        
                                                ------------------------
                                                     NOTARY PUBLIC

                                                  My Commission Expires


                                          23