FIRSTAR CORP /WI/
S-4/A, 1997-04-04
NATIONAL COMMERCIAL BANKS
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<PAGE>   1
 
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 4, 1997
    
   
                                                  REGISTRATION NO. 333-23277 AND
    
   
                                                                    333-23277-01
    
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
   
                                AMENDMENT NO. 1
    
   
                                       TO
    
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                              FIRSTAR CORPORATION
             (Exact name of Registrant as specified in its charter)
 
   
<TABLE>
<C>                                 <C>                                 <C>
            WISCONSIN                              6712                             39-0711710
 (State or other jurisdiction of       (Primary Standard Industrial              (I.R.S. Employer
  incorporation or organization)       Classification Code Number)             Identification No.)
</TABLE>
    
 
                            FIRSTAR CAPITAL TRUST I
         (Exact name of Registrant as specified in its trust agreement)
 
   
<TABLE>
<C>                                 <C>                                 <C>
             DELAWARE                              6719                            APPLIED FOR
 (State or other jurisdiction of       (Primary Standard Industrial              (I.R.S. Employer
  incorporation or organization)       Classification Code Number)             Identification No.)
</TABLE>
    
 
                            ------------------------
 
                           777 EAST WISCONSIN AVENUE
                           MILWAUKEE, WISCONSIN 53201
                                 (414) 765-4985
  (Address, including zip code, and telephone number, including area code, of
                   Registrants' principal executive offices)
                            ------------------------
 
                            HOWARD H. HOPWOOD, ESQ.
                           777 EAST WISCONSIN AVENUE
                           MILWAUKEE, WISCONSIN 53201
                                 (414) 765-4985
 (Name, address, including zip code, and telephone number, including area code,
                             of agents for service)
                            ------------------------
 
                                   COPIES TO:
 
<TABLE>
<C>                                                   <C>
              MITCHELL KLEINMAN, ESQ.                                 VINCENT PISANO, ESQ.
                  BROWN & WOOD LLP                          SKADDEN ARPS, SLATE, MEAGHER & FLOM LLP
               ONE WORLD TRADE CENTER                                   919 THIRD AVENUE
              NEW YORK, NEW YORK 10048                              NEW YORK, NEW YORK 10022
</TABLE>
 
                            ------------------------
 
    Approximate date of commencement of proposed sale to the public: As soon as
practicable after this Registration Statement becomes effective.
 
    If any of the securities being registered on this Form are to be offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.
 
                        CALCULATION OF REGISTRATION FEE
   
<TABLE>
<CAPTION>
============================================================================================================
                                                                  PROPOSED MAXIMUM        PROPOSED MAXIMUM
 TITLE OF EACH CLASS OF SECURITIES          AMOUNT TO BE           OFFERING PRICE        AGGREGATE OFFERING
          TO BE REGISTERED                   REGISTERED             PER UNIT(1)               PRICE(1)
- ------------------------------------------------------------------------------------------------------------
<S>                                     <C>                     <C>                     <C>
Series B Capital Securities of
Firstar Capital Trust I.............        $150,000,000                100%                $150,000,000
- ------------------------------------------------------------------------------------------------------------
Series B Junior Subordinated
Deferrable Interest Debentures of
Firstar Corporation(2)..............
- ------------------------------------------------------------------------------------------------------------
Firstar Series B Guarantee with
respect to Series B Capital
Securities(3)
- ------------------------------------------------------------------------------------------------------------
Total...............................        $150,000,000                100%              $150,000,000(4)
============================================================================================================
 
<CAPTION>
- -----------------------------------------------------------
                                                           
 TITLE OF EACH CLASS OF SECURITIES         AMOUNT OF       
          TO BE REGISTERED            REGISTRATION FEE(2)  
- -----------------------------------------------------------
<S>                                       <C>
Series B Capital Securities of                             
Firstar Capital Trust I.............       $45,454.55      
- -----------------------------------------------------------
Series B Junior Subordinated                               
Deferrable Interest Debentures of                          
Firstar Corporation(2)..............                       
- -----------------------------------------------------------
Firstar Series B Guarantee with                            
respect to Series B Capital                                
Securities(3)                                              
- -----------------------------------------------------------
Total...............................       $45,454.55      
===========================================================
</TABLE>
    
 
(1) Estimated solely for the purpose of computing the registration fee.
 
(2) No separate consideration will be received for the Series B Junior
    Subordinated Deferrable Interest Debentures of Firstar Corporation (the
    "Junior Subordinated Debentures") distributed upon any liquidation of
    Firstar Capital Trust I.
 
(3) No separate consideration will be received for the Firstar Corporation
    Series B Guarantee.
 
(4) Such amount represents the liquidation amount of the First Capital Trust I
    Series B Capital Securities to be exchanged hereunder and the principal
    amount of Junior Subordinated Debentures that may be distributed to holders
    of such Capital Securities upon any liquidation of Firstar Capital Trust I.
                            ------------------------
 
    The Registrants hereby amend this registration statement on such date or
dates as may be necessary to delay its effective date until the Registrants
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>   2
 
PROSPECTUS
 
                            FIRSTAR CAPITAL TRUST I
                             OFFER TO EXCHANGE ITS
                       8.32% SERIES B CAPITAL SECURITIES
                (LIQUIDATION AMOUNT $1,000 PER CAPITAL SECURITY)
          WHICH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933
                       FOR ANY AND ALL OF ITS OUTSTANDING
                       8.32% SERIES A CAPITAL SECURITIES
                (LIQUIDATION AMOUNT $1,000 PER CAPITAL SECURITY)
              UNCONDITIONALLY GUARANTEED, AS DESCRIBED HEREIN, BY
 
                              FIRSTAR CORPORATION
       THE EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M.,
   
              NEW YORK CITY TIME, ON MAY 7, 1997, UNLESS EXTENDED.
    
                            ------------------------
 
    Firstar Capital Trust I, a statutory business trust created under the laws
of the State of Delaware (the "Trust"), hereby offers, upon the terms and
subject to the conditions set forth in this Prospectus (as the same may be
amended or supplemented from time to time, the "Prospectus") and in the
accompanying Letter of Transmittal (which together constitute the "Exchange
Offer"), to exchange up to $150,000,000 aggregate Liquidation Amount of its
8.32% Series B Capital Securities (the "New Capital Securities") which have been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
pursuant to a Registration Statement (as defined herein) of which this
Prospectus constitutes a part, for a like Liquidation Amount of its outstanding
8.32% Series A Capital Securities (the "Old Capital Securities"), of which
$150,000,000 aggregate Liquidation Amount is outstanding. Pursuant to the
Exchange Offer, Firstar Corporation, a Wisconsin corporation (the
"Corporation"), is also offering to exchange (i) its guarantee of payments of
cash distributions and payments on liquidation of the Trust or redemption of the
Old Capital Securities (the "Old Guarantee") for a like guarantee in respect of
the New Capital Securities (the "New Guarantee") and (ii) all of its 8.32%
Series A Junior Subordinated Deferrable Interest Debentures due December 15,
2026 (the "Old Junior Subordinated Debentures") for a like aggregate principal
amount of its 8.32% Series B Junior Subordinated Deferrable Interest Debentures
due December 15, 2026 (the "New Junior Subordinated Debentures"), which New
Guarantee and New Junior Subordinated Debentures also have been registered under
the Securities Act. The Old Capital Securities, the Old Guarantee and the Old
Junior Subordinated Debentures are collectively referred to herein as the "Old
Securities" and the New Capital Securities, the New Guarantee and the New Junior
Subordinated Debentures are collectively referred to herein as the "New
Securities."
 
   
    The terms of the New Securities are identical in all material respects to
the respective terms of the Old Securities, except that (i) the New Securities
have been registered under the Securities Act and therefore generally will not
be subject to certain restrictions on transfer applicable to the Old Securities,
(ii) the New Capital Securities will not contain the $100,000 minimum
Liquidation Amount transfer restriction, (iii) the New Capital Securities will
not provide for any increase in the Distribution rate thereon, (iv) the New
Junior Subordinated Debentures will not contain the $100,000 minimum principal
amount transfer restriction and (v) the New Junior Subordinated Debentures will
not provide for any liquidated damages thereon. See "Description of New
Securities" and "Description of Old Securities." The New Capital Securities are
being offered for exchange in order to satisfy certain obligations of the
Corporation and the Trust under the Registration Rights Agreement dated as of
December 23, 1996 (the "Registration Rights Agreement") among the Corporation,
the Trust and the Initial Purchasers (as defined herein). In the event that the
Exchange Offer is consummated, any Old Capital Securities which remain
outstanding after consummation of the Exchange Offer and the New Capital
Securities issued in the Exchange Offer will vote together as a single class for
purposes of determining whether holders of the requisite percentage in
outstanding Liquidation Amount thereof have taken certain actions or exercised
certain rights under the Declaration.
    
                                               (Continued on the following page)
 
   
    This Prospectus and the Letter of Transmittal are first being mailed to all
holders of Old Capital Securities on April 7, 1997.
    
 
    SEE "RISK FACTORS" COMMENCING ON PAGE   FOR CERTAIN INFORMATION THAT SHOULD
BE CONSIDERED BY HOLDERS IN DECIDING WHETHER TO TENDER OLD CAPITAL SECURITIES IN
THE EXCHANGE OFFER.
 
  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 date of this Prospectus is April 4, 1997.
    
<PAGE>   3
 
(Continued from the previous page)
 
   
     The New Capital Securities and the Old Capital Securities (collectively,
the "Capital Securities") represent beneficial interests in the assets of the
Trust. The Corporation is the owner of all of the beneficial interests
represented by common securities of the Trust (the "Common Securities," and
together with the Capital Securities, the "Trust Securities"). The Chase
Manhattan Bank is the Property Trustee of the Trust. The Trust exists for the
sole purpose of issuing the Trust Securities and investing the proceeds thereof
in the Junior Subordinated Debentures (as defined herein). The Junior
Subordinated Debentures will mature on December 15, 2026 (the "Stated Maturity
Date"). The Capital Securities will have a preference over the Common Securities
under certain circumstances with respect to cash distributions and amounts
payable on liquidation, redemption or otherwise. See "Description of New
Securities -- Description of New Capital Securities -- Subordination of Common
Securities."
    
 
   
     As used herein, (i) the "Indenture" means the Indenture, dated as of
December 23, 1996, as amended and supplemented from time to time, between the
Corporation and The Chase Manhattan Bank, as Debenture Trustee (the "Debenture
Trustee"), (ii) the "Declaration" means the Amended and Restated Declaration of
Trust relating to the Trust among the Corporation, as Sponsor, The Chase
Manhattan Bank as Property Trustee (the "Property Trustee"), Chase Manhattan
Bank Delaware, as Delaware Trustee (the "Delaware Trustee"), the Administrative
Trustees named therein (collectively, with the Property Trustee and Delaware
Trustee, the "Issuer Trustees"), and the holders from time to time of the
undivided beneficial interests in the assets of the Trust. In addition, as the
context may require, unless otherwise expressly stated, (i) the term "Capital
Securities" includes the Old Capital Securities and the New Capital Securities,
(ii) the term "Trust Securities" includes the Capital Securities and the Common
Securities, (iii) the term "Junior Subordinated Debentures" includes the Old
Junior Subordinated Debentures and the New Junior Subordinated Debentures and
(iv) the term "Guarantee" includes the Old Guarantee and the New Guarantee.
    
 
   
     Holders of the New Capital Securities will be entitled to receive
preferential cumulative cash distributions arising from the payment of interest
on the Junior Subordinated Debentures, accruing from December 23, 1996, and
payable semi-annually in arrears on June 15 and December 15 of each year,
commencing June 15, 1997, at the annual rate of 8.32% of the Liquidation Amount
of $1,000 per New Capital Security ("Distributions"). The Corporation will have
the right to defer payments of interest on the Junior Subordinated Debentures at
any time and from time to time for a period not exceeding 10 consecutive semi-
annual periods with respect to each deferral period (each, an "Extension
Period"), provided that no Extension Period may extend beyond the Stated
Maturity Date. Upon the termination of any such Extension Period and the payment
of all amounts then due, the Corporation may elect to begin a new Extension
Period, subject to the requirements set forth in the Indenture. If and for so
long as interest payments on the Junior Subordinated Debentures are so deferred,
Distributions on the Trust Securities will also be deferred and the Corporation
will not be permitted, subject to certain exceptions described herein, to
declare or pay any cash distributions with respect to the Corporation's capital
stock (which includes common and preferred stock) or to make any payment with
respect to debt securities of the Corporation that rank pari passu with or
junior to the Junior Subordinated Debentures. During an Extension Period,
interest on the Junior Subordinated Debentures will continue to accrue (and the
amount of Distributions to which holders of the Trust Securities are entitled
will accumulate) at the rate of 8.32% per annum, compounded semi-annually, and
holders of Trust Securities will be required to accrue interest income for
United States federal income tax purposes prior to the receipt of cash
attributable to such income. See "Description of New Securities -- Description
of New Junior Subordinated Debentures -- Option to Extend Interest Payment Date"
and "Certain Federal Income Tax Considerations -- Interest Income and Original
Issue Discount."
    
 
   
     Through the Guarantee, the guarantee agreement of the Corporation relating
to the Common Securities (the "Common Guarantee"), the Declaration, the Junior
Subordinated Debentures and the Indenture, taken together, the Corporation has
guaranteed or will guarantee, as the case may be, fully, irrevocably and
unconditionally, all of the Trust's obligations under the Trust Securities. See
"Relationship Among the New Capital Securities, the New Junior Subordinated
Debentures and the New Guarantee -- Full and Unconditional Guarantee." The Old
Guarantee and the Common Guarantee guarantees and the New Guarantee will
guarantee, payments of Distributions and payments on liquidation or redemption
of the Trust Securities, but in
    
 
                                        2
<PAGE>   4
 
(Continued from the previous page)
 
each case only to the extent that the Trust holds funds on hand legally
available therefor and has failed to make such payments, as described herein.
See "Description of New Securities -- Description of New Guarantee." If the
Corporation fails to make a required payment on the Junior Subordinated
Debentures, the Trust will not have sufficient funds to make the related
payments, including Distributions, on the Trust Securities. The Guarantee and
the Common Guarantee will not cover any such payment when the Trust does not
have sufficient funds on hand legally available therefor. In such event, a
holder of Capital Securities may institute a legal proceeding directly against
the Corporation to enforce its rights in respect of such payment. See
"Description of New Securities -- Description of New Junior Subordinated
Debentures -- Enforcement of Certain Rights By Holders of New Capital
Securities." The obligations of the Corporation under the Guarantee, the Common
Guarantee and the Junior Subordinated Debentures will be subordinate and junior
in right of payment to all Senior Indebtedness of the Corporation to the extent
and in the manner set forth in the Indenture and the Guarantees, respectively
(as defined in "Description of New Securities -- Description of New Junior
Subordinated Debentures -- Subordination"). In addition, because the Corporation
is a holding company, the Junior Subordinated Debentures and the Guarantee
effectively will be subordinated to all existing and future liabilities,
including deposits of the Corporation's subsidiaries.
 
     The Trust Securities will be subject to mandatory redemption in a Like
Amount (as defined herein), (i) in whole but not in part, on the Stated Maturity
Date upon repayment of the Junior Subordinated Debentures at a redemption price
equal to the principal amount of, plus accrued interest on, the Junior
Subordinated Debentures (the "Maturity Redemption Price"), (ii) in whole but not
in part, at any time before December 23, 2006 (the "Initial Optional Prepayment
Date"), contemporaneously with the optional prepayment of the Junior
Subordinated Debentures, upon the occurrence and continuation of a Special Event
(as defined herein) at a redemption price equal to the Special Event Prepayment
Price (as defined below) (the "Special Event Redemption Price"), and (iii) in
whole or in part, on or after the Initial Optional Prepayment Date,
contemporaneously with the optional prepayment by the Corporation of the Junior
Subordinated Debentures, at a redemption price equal to the Optional Prepayment
Price (as defined below) (the "Optional Redemption Price"). Any of the Maturity
Redemption Price, the Special Event Redemption Price and the Optional Redemption
Price may be referred to herein as the "Redemption Price." See "Description of
New Securities -- Description of New Capital Securities -- Redemption."
 
     Subject to the Corporation having received prior approval of the Board of
Governors of the Federal Reserve System (the "Federal Reserve") to do so if then
required under applicable capital guidelines or policies of the Federal Reserve,
the Junior Subordinated Debentures will be prepayable prior to the Stated
Maturity Date at the option of the Corporation (i) on or after the Initial
Optional Prepayment Date, in whole or in part, at a prepayment price (the
"Optional Prepayment Price") equal to 104.16% of the principal amount thereof on
the Initial Optional Prepayment Date, declining ratably on each December 23
thereafter to 100% on or after December 23, 2016, plus accrued interest thereon
to the date of prepayment, or (ii) at any time before the Initial Optional
Prepayment Date, in whole but not in part, upon the occurrence and continuation
of a Special Event, at a prepayment price (the "Special Event Prepayment Price")
equal to the greater of (a) 100% of the principal amount thereof or (b) the sum,
as determined by a Quotation Agent (as defined herein), of the present values of
the principal amount and premium payable as part of the Optional Prepayment
Price with respect to an optional redemption of such Junior Subordinated
Debentures on the Initial Optional Prepayment Date, together with scheduled
payments of interest from the prepayment date to the Initial Optional Prepayment
Date, in each case discounted to the prepayment date on a semi-annual basis
(assuming a 360-day year consisting of twelve 30-day months) at the Adjusted
Treasury Rate (as defined herein) plus, in either case, accrued and unpaid
interest thereon to the date of prepayment. Either of the Optional Prepayment
Price or the Special Event Prepayment Price may be referred to herein as the
"Prepayment Price." See "Description of New Securities -- Description of New
Junior Subordinated Debentures -- Optional Prepayment" and "-- Special Event
Prepayment."
 
   
     The Corporation will have the right at any time to terminate the Trust and
cause a Like Amount of the Junior Subordinated Debentures to be distributed to
the holders of the Trust Securities in liquidation of the
    
 
                                        3
<PAGE>   5
 
(Continued from the previous page)
 
Trust, subject to (i) the Corporation having received an opinion of counsel to
the effect that such distribution will not be a taxable event to holders of
Capital Securities and (ii) the prior approval of the Federal Reserve to do so
if then required under applicable capital guidelines or policies of the Federal
Reserve. Unless the Junior Subordinated Debentures are distributed to the
holders of the Trust Securities, in the event of a liquidation of the Trust as
described herein, after satisfaction of liabilities to creditors of the Trust as
required by applicable law, the holders of the Capital Securities generally will
be entitled to receive a Liquidation Amount of $1,000 per Capital Security plus
accumulated Distributions thereon to the date of payment. See "Description of
New Securities -- Description of New Capital Securities -- Liquidation of the
Trust and Distribution of Junior Subordinated Debentures," and "Certain Federal
Income Tax Considerations -- Receipt of Junior Subordinated Debentures or Cash
upon Liquidation of the Trust."
                           -------------------------
 
     The Trust is making the Exchange Offer of the New Capital Securities in
reliance on the position of the staff of the Division of Corporation Finance of
the Securities and Exchange Commission (the "Commission") as set forth in
certain interpretive letters addressed to third parties in other transactions.
However, neither the Corporation nor the Trust has sought its own interpretive
letter and there can be no assurance that the staff of the Division of
Corporation Finance of the Commission would make a similar determination with
respect to the Exchange Offer as it has in such interpretive letters to third
parties. Based on these interpretations by the staff of the Division of
Corporation Finance of the Commission, and subject to the two immediately
following sentences, the Corporation and the Trust believe that New Capital
Securities issued pursuant to this Exchange Offer in exchange for Old Capital
Securities may be offered for resale, resold and otherwise transferred by a
holder thereof (other than a holder who is a broker-dealer) without further
compliance with the registration and prospectus delivery requirements of the
Securities Act, provided that such New Capital Securities are acquired in the
ordinary course of such holder's business and that such holder is not
participating, and has no arrangement or understanding with any person to
participate, in a distribution (within the meaning of the Securities Act) of
such New Capital Securities. However, any holder of Old Capital Securities who
is an "affiliate" of the Corporation or the Trust or who intends to participate
in the Exchange Offer for the purpose of distributing New Capital Securities, or
any broker-dealer who purchased Old Capital Securities from the Trust for resale
pursuant to Rule 144A under the Securities Act ("Rule 144A") or any other
available exemption under the Securities Act, (a) will not be able to rely on
the interpretations of the staff of the Division of Corporation Finance of the
Commission set forth in the above-mentioned interpretive letters, (b) will not
be permitted or entitled to tender such Old Capital Securities in the Exchange
Offer and (c) must comply with the registration and prospectus delivery
requirements of the Securities Act in connection with any sale or other transfer
of such Old Capital Securities (other than pursuant to the Exchange Offer)
unless such sale is made pursuant to an exemption from such requirements. In
addition, as described below, if any broker-dealer holds Old Capital Securities
acquired for its own account as a result of market-making or other trading
activities and exchanges such Old Capital Securities for New Capital Securities,
then such broker-dealer must deliver a prospectus meeting the requirements of
the Securities Act in connection with any resales of such New Capital
Securities.
 
     Each holder of Old Capital Securities who wishes to exchange Old Capital
Securities for New Capital Securities in the Exchange Offer will be required to
represent that (i) it is not an "affiliate" of the Corporation or the Trust,
(ii) any New Capital Securities to be received by it are being acquired in the
ordinary course of its business, (iii) it has no arrangement or understanding
with any person to participate in a distribution (within the meaning of the
Securities Act) of such New Capital Securities, and (iv) if such holder is not a
broker-dealer, such holder is not engaged in, and does not intend to engage in,
a distribution (within the meaning of the Securities Act) of such New Capital
Securities. In addition, the Corporation and the Trust may require such holder,
as a condition to such holder's eligibility to participate in the Exchange
Offer, to furnish to the Corporation and the Trust (or an agent thereof) in
writing information as to the number of "beneficial owners" (within the meaning
of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) on behalf of whom such holder holds the Capital Securities to
be exchanged in the Exchange Offer. Each broker-dealer that receives New Capital
Securities for its own account pursuant
 
                                        4
<PAGE>   6
 
(Continued from the previous page)
 
to the Exchange Offer must acknowledge that it acquired the Old Capital
Securities for its own account as the result of market-making activities or
other trading activities and must agree that it will deliver a prospectus
meeting the requirements of the Securities Act in connection with any resale of
such New Capital Securities. The Letter of Transmittal states that, by so
acknowledging and by delivering a prospectus a broker-dealer will not be deemed
to admit that it is an "underwriter" within the meaning of the Securities Act.
Based on the position taken by the staff of the Division of Corporation Finance
of the Commission in the interpretive letters referred to above, the Corporation
and the Trust believe that broker-dealers who acquired Old Capital Securities
for their own accounts, as a result of market-making activities or other trading
activities ("Participating Broker-Dealers"), may fulfill their prospectus
delivery requirements with respect to the New Capital Securities received upon
exchange of such Old Capital Securities (other than Old Capital Securities which
represent an unsold allotment from the original sale of the Old Capital
Securities) with a prospectus meeting the requirements of the Securities Act,
which may be the prospectus prepared for an exchange offer so long as it
contains a description of the plan of distribution with respect to the resale of
such New Capital Securities. Accordingly, this Prospectus, as it may be amended
or supplemented from time to time, may be used by a Participating Broker-Dealer
during the period referred to below in connection with resales of New Capital
Securities received in exchange for Old Capital Securities where such Old
Capital Securities were acquired by such Participating Broker-Dealer for its own
account as a result of market-making or other trading activities. Subject to
certain provisions set forth in the Registration Rights Agreement, the
Corporation and the Trust have agreed that this Prospectus, as it may be amended
or supplemented from time to time, may be used by a Participating Broker-Dealer
in connection with resales of such New Capital Securities for a period ending
90-days after the Expiration Date (as defined herein) (subject to extension
under certain limited circumstances described below) or, if earlier, when all
such New Capital Securities have been disposed of by such Participating
Broker-Dealer. See "Plan of Distribution." However, a Participating
Broker-Dealer who intends to use this Prospectus in connection with the resale
of New Capital Securities received in exchange for Old Capital Securities
pursuant to the Exchange Offer must notify the Corporation or the Trust, or
cause the Corporation or the Trust to be notified, on or prior to the Expiration
Date, that it is a Participating Broker-Dealer. Such notice may be given in the
space provided for that purpose in the Letter of Transmittal or may be delivered
to the Exchange Agent at one of the addresses set forth herein under "The
Exchange Offer -- Exchange Agent." Any Participating Broker-Dealer who is an
"affiliate" of the Corporation or the Trust may not rely on such interpretive
letters and must comply with the registration and prospectus delivery
requirements of the Securities Act in connection with any resale transaction.
See "The Exchange Offer -- Resales of New Capital Securities."
 
   
     In that regard, each Participating Broker-Dealer who surrenders Old Capital
Securities pursuant to the Exchange Offer will be deemed to have agreed, by
execution of the Letter of Transmittal or delivery of an Agents' Message, that,
upon receipt of notice from the Corporation or the Trust of the occurrence of
any event or the discovery of any fact which makes any statement contained or
incorporated by reference in this Prospectus untrue in any material respect or
which causes this Prospectus to omit to state a material fact necessary in order
to make the statements contained or incorporated by reference herein, in light
of the circumstances under which they were made, not misleading or of the
occurrence of certain other events specified in the Registration Rights
Agreement, such Participating Broker-Dealer will suspend the sale of New Capital
Securities (or the New Guarantee or the New Junior Subordinated Debentures, as
applicable) pursuant to this Prospectus until the Corporation or the Trust has
amended or supplemented this Prospectus to correct such misstatement or omission
and has furnished copies of the amended or supplemented Prospectus to such
Participating Broker-Dealer or the Corporation or the Trust has given notice
that the sale of the New Capital Securities (or the New Guarantee or the New
Junior Subordinated Debentures, as applicable) may be resumed, as the case may
be. If the Corporation or the Trust gives such notice to suspend the sale of the
New Capital Securities (or the New Guarantee or the New Junior Subordinated
Debentures, as applicable), it shall extend the 90-day period referred to above
during which Participating Broker-Dealers are entitled to use this Prospectus in
connection with the resale of New Capital Securities by the number of days
during the period from and including the date of the giving of such notice to
and including the date when
    
 
                                        5
<PAGE>   7
 
(Continued from the previous page)
 
Participating Broker-Dealers shall have received copies of the amended or
supplemented Prospectus necessary to permit resales of the New Capital
Securities or to and including the date on which the Corporation or the Trust
has given notice that the sale of New Capital Securities (or the New Guarantee
or the New Junior Subordinated Debentures, as applicable) may be resumed, as the
case may be.
 
     Prior to the Exchange Offer, there has been only a limited secondary market
and no public market for the Old Capital Securities. The New Capital Securities
will be a new issue of securities for which there currently is no market.
Although the Initial Purchasers have informed the Corporation and the Trust that
they each currently intend to make a market in the New Capital Securities, they
are not obligated to do so, and any such market making may be discontinued at
any time without notice. Accordingly, there can be no assurance as to the
development or liquidity of any market for the New Capital Securities. The
Corporation and the Trust currently do not intend to apply for listing of the
New Capital Securities on any securities exchange or for inclusion in the Nasdaq
Stock Market, the electronic securities market operated by the National
Association of Securities Dealers, Inc. ("Nasdaq").
 
     Any Old Capital Securities not tendered and accepted in the Exchange Offer
will remain outstanding and will be entitled to all the same rights and will be
subject to the same limitations applicable thereto under the Declaration (except
for those rights which terminate upon consummation of the Exchange Offer).
Following consummation of the Exchange Offer, the holders of Old Capital
Securities will continue to be subject to all of the existing restrictions upon
transfer thereof and neither the Corporation nor the Trust will have any further
obligation to such holders (other than under certain limited circumstances) to
provide for registration under the Securities Act of the Old Capital Securities
held by them. To the extent that Old Capital Securities are tendered and
accepted in the Exchange Offer, a holder's ability to sell untendered Old
Capital Securities could be adversely affected. See "Risk
Factors -- Consequences of a Failure to Exchange Old Capital Securities."
 
     THIS PROSPECTUS AND THE RELATED LETTER OF TRANSMITTAL CONTAIN IMPORTANT
INFORMATION. HOLDERS OF OLD CAPITAL SECURITIES ARE URGED TO READ THIS PROSPECTUS
AND THE RELATED LETTER OF TRANSMITTAL CAREFULLY BEFORE DECIDING WHETHER TO
TENDER THEIR OLD CAPITAL SECURITIES PURSUANT TO THE EXCHANGE OFFER.
 
     Old Capital Securities may be tendered for exchange on or prior to 5:00
p.m., New York City time, on                , 1997 (such time on such date being
hereinafter called the "Expiration Date"), unless the Exchange Offer is extended
by the Corporation or the Trust (in which case the term "Expiration Date" shall
mean the latest date and time to which the Exchange Offer is extended). Tenders
of Old Capital Securities may be withdrawn at any time on or prior to the
Expiration Date. The Exchange Offer is not conditioned upon any minimum
Liquidation Amount of Old Capital Securities being tendered for exchange.
However, the Exchange Offer is subject to certain events and conditions which
may be waived by the Corporation or the Trust and to the terms and provisions of
the Registration Rights Agreement. Old Capital Securities may be tendered in
whole or in part having an aggregate Liquidation Amount of not less than
$100,000 (100 Capital Securities) or any integral multiple of $1,000 Liquidation
Amount (one Capital Security) in excess thereof. The Corporation has agreed to
pay all expenses of the Exchange Offer. See "The Exchange Offer -- Fees and
Expenses." Holders of the Old Capital Securities whose Old Capital Securities
are accepted for exchange will not receive Distributions on such Old Capital
Securities and will be deemed to have waived the right to receive any
Distributions on such Old Capital Securities accumulated from and after December
23, 1996. Accordingly, holders of New Capital Securities as of the record date
for the payment of Distributions on June 15, 1997 will be entitled to receive
Distributions accumulated from and including December 23, 1996.
 
     Neither the Corporation nor the Trust will receive any cash proceeds from
the issuance of the New Capital Securities offered hereby. No dealer-manager is
being used in connection with this Exchange Offer. See "Use of Proceeds" and
"Plan of Distribution."
 
                           -------------------------
 
                                        6
<PAGE>   8
 
     NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS IN CONNECTION WITH THIS EXCHANGE
OFFER AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE
RELIED UPON AS HAVING BEEN AUTHORIZED BY THE CORPORATION OR THE TRUST. NEITHER
THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL UNDER ANY
CIRCUMSTANCE CREATE AN IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS
OF THE CORPORATION OR THE TRUST SINCE THE DATE HEREOF. THIS PROSPECTUS DOES NOT
CONSTITUTE AN OFFER OR A SOLICITATION BY ANYONE IN ANY JURISDICTION IN WHICH
SUCH OFFER OR SOLICITATION IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH
OFFER OR SOLICITATION IS NOT QUALIFIED TO DO SO OR ANYONE TO WHOM IT IS UNLAWFUL
TO MAKE SUCH OFFER OR SOLICITATION.
                           -------------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                PAGE
                                                                ----
<S>                                                             <C>
Available Information.......................................      7
Incorporation of Certain Documents by Reference.............      8
Summary.....................................................      9
Risk Factors................................................     15
Ratios of Earnings to Fixed Charges.........................     19
Use of Proceeds.............................................     20
Capitalization..............................................     21
Summary Financial Data......................................     22
Firstar Capital Trust I.....................................     23
Firstar Corporation.........................................     23
The Exchange Offer..........................................     24
Description of New Securities...............................     33
Description of Old Securities...............................     53
Relationship Among the New Capital Securities, the New
  Junior Subordinated Debentures and the New Guarantee......     53
Certain Federal Income Tax Considerations...................     55
ERISA Considerations........................................     58
Plan of Distribution........................................     59
Validity of New Securities..................................     60
Experts.....................................................     60
</TABLE>
    
 
                             AVAILABLE INFORMATION
 
     The Corporation is subject to the informational requirements of the
Exchange Act and in accordance therewith, files reports, proxy statements and
other information with the Commission. Such reports, proxy statements and other
information can be inspected and copied at the public reference facilities of
the Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549 and
at the regional offices of the Commission located at 7 World Trade Center, 13th
Floor, Suite 1300, New York, New York 10048 and Suite 1400, Citicorp Center,
14th Floor, 500 West Madison Street, Chicago, Illinois 60661. Copies of such
material can also be obtained at prescribed rates by writing to the Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington, D.C.
20549. Such information may also be accessed electronically by means of the
Commission's home page on the Internet (http://www.sec.gov.). In addition, such
reports, proxy statements and other information concerning the Corporation can
be inspected at the offices of the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.
 
                                        7
<PAGE>   9
 
     No separate financial statements of the Trust have been included herein.
The Corporation and the Trust do not consider that such financial statements
would be material to holders of the New Capital Securities because the Trust is
a newly formed special purpose entity, has no operating history or independent
operations and is not engaged in and does not propose to engage in any activity
other than holding as trust assets the Junior Subordinated Debentures and
issuing the Trust Securities. See "Firstar Capital Trust I" and "Description of
New Securities." In addition, the Corporation does not expect that the Trust
will file reports under the Exchange Act with the Commission.
 
     This Prospectus constitutes a part of a registration statement on Form S-4
(the "Registration Statement") filed by the Corporation and the Trust with the
Commission under the Securities Act. This Prospectus does not contain all the
information set forth in the Registration Statement, certain parts of which are
omitted in accordance with the rules and regulations of the Commission, and
reference is hereby made to the Registration Statement and to the exhibits
relating thereto for further information with respect to the Corporation, the
Trust and the New Securities. Any statements contained herein concerning the
provisions of any 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.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed by the Corporation with the Commission are
incorporated into this Prospectus by reference:
 
   
          1. Annual Report on Form 10-K for the year ended December 31, 1996;
             and
    

   
    

   
          2. Current Report on Form 8-K dated December 17, 1996.
    
 
     All documents subsequently filed by the Corporation pursuant to Section
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date hereof and prior to
the termination of the offering of the New Securities offered hereby shall be
deemed to be incorporated by reference into this Prospectus and to be a part of
this Prospectus from the date of filing of such document. Any statement
contained herein or in a document incorporated or deemed to be incorporated by
reference herein shall be deemed to be modified or superseded for purposes of
this Prospectus to the extent that a statement contained herein or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.
 
     As used herein, the terms "Prospectus" and "herein" mean this Prospectus
including the documents incorporated or deemed to be incorporated herein by
reference, as the same may be amended, supplemented or otherwise modified from
time to time. Statements contained in this Prospectus as to the contents of any
contract or other document referred to herein do not purport to be complete, and
where reference is made to the particular provisions of such contract or other
document, such provisions are qualified in all respects by reference to all of
the provisions of such contract or other document. The Corporation will provide
without charge to any person to whom this Prospectus is delivered, on the
written or oral request of such person, a copy of any or all of the foregoing
documents incorporated by reference herein (other than exhibits not specifically
incorporated by reference into the texts of such documents). Requests for such
documents should be directed to: Firstar Corporation, 777 East Wisconsin Avenue,
Milwaukee, Wisconsin 53201, Attention: Chief Financial Officer.
 
                                        8
<PAGE>   10
 
                                    SUMMARY
 
     The following is a summary of certain information contained elsewhere in
this Prospectus. Reference is made to, and this summary is qualified in its
entirety by, the more detailed information and financial statements, including
the notes thereto, contained elsewhere in this Prospectus.
 
                            FIRSTAR CAPITAL TRUST I
 
   
     The Trust is a statutory business trust created under Delaware law pursuant
to (i) a Declaration executed by the Corporation, as Sponsor, The Chase
Manhattan Bank as Property Trustee, and Chase Manhattan Bank Delaware as
Delaware Trustee, and (ii) the filing of a certificate of trust with the
Delaware Secretary of State on December 17, 1996. The Trust's affairs are
conducted by the Issuer Trustees: the Property Trustee, the Delaware Trustee,
and the three individual Administrative Trustees who are employees or officers
of or affiliated with the Corporation. The Trust exists for the exclusive
purposes of (i) issuing and selling the Trust Securities, (ii) using the
proceeds from the sale of the Trust Securities to acquire the Junior
Subordinated Debentures issued by the Corporation, and (iii) engaging in only
those other activities necessary, advisable or incidental thereto (such as
registering the transfer of the Capital Securities). The Junior Subordinated
Debentures will be the sole assets of the Trust, and, accordingly, payments
under the Junior Subordinated Debentures will be the sole revenue of the Trust.
All of the Common Securities are owned by the Corporation.
    
 
                              FIRSTAR CORPORATION
 
   
     Firstar is a multibank holding company providing financial services at 243
branch locations primarily throughout the states of Wisconsin and Iowa and in
the Chicago and Minneapolis-St. Paul metropolitan areas. At December 31, 1996,
Firstar had total assets of $19.8 billion and total stockholders' equity of $1.7
billion. Firstar's bank subsidiaries in Wisconsin had 118 locations and total
assets of $10.3 billion of which Firstar Bank Milwaukee, the largest commercial
bank in Wisconsin, had 57 locations and total assets of $6.1 billion. Firstar's
bank subsidiaries in Iowa (with 51 locations), Chicago (with 40 locations) and
Minneapolis-St. Paul (with 31 locations) had total assets of $2.9 billion, $3.0
billion and $3.0 billion, respectively, as of that date. Subsidiary asset totals
are net of intercompany balances. At December 31, 1996, Firstar's trust and
investment management subsidiaries held $22.1 billion of assets under active
management. All of Firstar's bank subsidiaries are owned by three sub-bank
holding companies which are direct subsidiaries of Firstar.
    
 
                               THE EXCHANGE OFFER
 
THE EXCHANGE OFFER.........  Up to $150,000,000 aggregate Liquidation Amount of
                             New Capital Securities are being offered in
                             exchange for a like aggregate Liquidation Amount of
                             Old Capital Securities. Old Capital Securities may
                             be tendered for exchange in whole or in part in a
                             Liquidation Amount of $100,000 (100 Capital
                             Securities) or any integral multiple of $1,000 (one
                             Capital Security) in excess thereof. The
                             Corporation and the Trust are making the Exchange
                             Offer in order to satisfy their obligations under
                             the Registration Rights Agreement relating to the
                             Old Capital Securities. For a description of the
                             procedures for tendering Old Capital Securities,
                             see "The Exchange Offer -- Procedures for Tendering
                             Old Capital Securities."
 
   
EXPIRATION DATE............  5:00 p.m., New York City time, on May 7, 1997,
                             unless the Exchange Offer is extended by the
                             Corporation or the Trust (in which case the
                             Expiration Date will be the latest date and time to
                             which the Exchange Offer is extended). See "The
                             Exchange Offer -- Terms of the Exchange Offer."
    
                                        9
<PAGE>   11
 
CONDITIONS TO THE EXCHANGE
  OFFER....................  The Exchange Offer is subject to certain
                             conditions, which may be waived by the Corporation
                             and the Trust in their sole discretion. The
                             Exchange Offer is not conditioned upon any minimum
                             Liquidation Amount of Old Capital Securities being
                             tendered. See "The Exchange Offer -- Conditions to
                             the Exchange Offer."
 
OFFER......................  The Corporation and the Trust reserve the right in
                             their sole and absolute discretion, subject to
                             applicable law, at any time and from time to time,
                             to (i) delay the acceptance of the Old Capital
                             Securities for exchange, (ii) terminate the
                             Exchange Offer if certain specified conditions have
                             not been satisfied, (iii) extend the Expiration
                             Date of the Exchange Offer and retain all Old
                             Capital Securities tendered pursuant to the
                             Exchange Offer, subject, however, to the right of
                             holders of Old Capital Securities to withdraw their
                             tendered Old Capital Securities, or (iv) to waive
                             any condition or otherwise amend the terms of the
                             Exchange Offer in any respect. See "The Exchange
                             Offer -- Terms of the Exchange Offer."
 
WITHDRAWAL RIGHTS..........  Tenders of Old Capital Securities may be withdrawn
                             at any time on or prior to the Expiration Date by
                             delivering a written notice of such withdrawal to
                             the Exchange Agent in conformity with certain
                             procedures set forth below under "The Exchange
                             Offer -- Withdrawal Rights."
 
PROCEDURES FOR TENDERING
OLD CAPITAL SECURITIES.....  Tendering holders of Old Capital Securities must
                             complete and sign a Letter of Transmittal in
                             accordance with the instructions contained therein
                             and forward the same by mail, facsimile or hand
                             delivery, together with any other required
                             documents, to the Exchange Agent, either with the
                             Old Capital Securities to be tendered or in
                             compliance with the specified procedures for
                             guaranteed delivery of Old Capital Securities.
                             Certain brokers, dealers, commercial banks, trust
                             companies and other nominees may also effect
                             tenders by book-entry transfer, including an
                             Agent's Message in lieu of a Letter of Transmittal.
                             Holders of Old Capital Securities registered in the
                             name of a broker, dealer, commercial bank, trust
                             company or other nominee are urged to contact such
                             person promptly if they wish to tender Old Capital
                             Securities pursuant to the Exchange Offer. See "The
                             Exchange Offer -- Procedures for Tendering Old
                             Capital Securities."
 
                             Letters of Transmittal and certificates
                             representing Old Capital Securities should not be
                             sent to the Corporation or the Trust. Such
                             documents should only be sent to the Exchange
                             Agent.
 
RESALES OF NEW CAPITAL
  SECURITIES...............  The Corporation and the Trust are making the
                             Exchange Offer in reliance on the position of the
                             staff of the Division of Corporation Finance of the
                             Commission as set forth in certain interpretive
                             letters addressed to third parties in other
                             transactions. However, neither the Corporation nor
                             the Trust has sought its own interpretive letter
                             and there can be no assurance that the staff of the
                             Division of Corporation Finance of the Commission
                             would make a similar determination with respect to
                                       10
<PAGE>   12
 
                             the Exchange Offer as it has in such interpretive
                             letters to third parties. Based on these
                             interpretations by the staff of the Division of
                             Corporation Finance of the Commission, and subject
                             to the two immediately following sentences, the
                             Corporation and the Trust believe that New Capital
                             Securities issued pursuant to this Exchange Offer
                             in exchange for Old Capital Securities may be
                             offered for resale, resold and otherwise
                             transferred by a holder thereof (other than a
                             holder who is a broker-dealer) without further
                             compliance with the registration and prospectus
                             delivery requirements of the Securities Act,
                             provided that such New Capital Securities are
                             acquired in the ordinary course of such holder's
                             business and that such holder is not participating,
                             and has no arrangement or understanding with any
                             person to participate, in a distribution (within
                             the meaning of the Securities Act) of such New
                             Capital Securities. However, any holder of Old
                             Capital Securities who is an "affiliate" of the
                             Corporation or the Trust or who intends to
                             participate in the Exchange Offer for the purpose
                             of distributing the New Capital Securities, or any
                             broker-dealer who purchased the Old Capital
                             Securities from the Trust for resale pursuant to
                             Rule 144A or any other available exemption under
                             the Securities Act, (a) will not be able to rely on
                             the interpretations of the staff of the Division of
                             Corporation Finance of the Commission set forth in
                             the above-mentioned interpretive letters, (b) will
                             not be permitted or entitled to tender such Old
                             Capital Securities in the Exchange Offer and (c)
                             must comply with the registration and prospectus
                             delivery requirements of the Securities Act in
                             connection with any sale or other transfer of such
                             Old Capital Securities unless such sale is made
                             pursuant to an exemption from such requirements. In
                             addition, as described below, if any broker-dealer
                             holds Old Capital Securities acquired for its own
                             account as a result of market-making or other
                             trading activities and exchanges such Old Capital
                             Securities for New Capital Securities, then such
                             broker-dealer must deliver a prospectus meeting the
                             requirements of the Securities Act in connection
                             with any resales of such New Capital Securities.
 
   
                             Each holder of Old Capital Securities who wishes to
                             exchange Old Capital Securities for New Capital
                             Securities in the Exchange Offer will be required
                             to represent in the Letter of Transmittal or by
                             transmission of an Agent's Message that (i) it is
                             not an "affiliate" of the Corporation or the Trust,
                             (ii) any New Capital Securities to be received by
                             it are being acquired in the ordinary course of its
                             business, (iii) it has no arrangement or
                             understanding with any person to participate in a
                             distribution (within the meaning of the Securities
                             Act) of such New Capital Securities, and (iv) if
                             such holder is not a broker-dealer, such holder is
                             not engaged in, and does not intend to engage in, a
                             distribution (within the meaning of the Securities
                             Act) of such New Capital Securities. Each
                             broker-dealer that receives New Capital Securities
                             for its own account pursuant to the Exchange Offer
                             must acknowledge that it acquired the Old Capital
                             Securities for its own account as the result of
                             market-making activities or other trading
                             activities and must agree that it will deliver a
                             prospectus meeting the requirements of the
                             Securities Act in connection with any resale of
                             such New Capital Securities. The Letter of
                             Transmittal states that, by so acknowledging and by
                             delivering a prospectus, a broker-dealer will not
                             be deemed to admit that it is an
    
                                       11
<PAGE>   13
 
                             "underwriter" within the meaning of the Securities
                             Act. Based on the position taken by the staff of
                             the Division of Corporation Finance of the
                             Commission in the interpretive letters referred to
                             above, the Corporation and the Trust believe that
                             Participating Broker-Dealers who acquired Old
                             Capital Securities for their own accounts as a
                             result of market-making activities or other trading
                             activities may fulfill their prospectus delivery
                             requirements with respect to the New Capital
                             Securities received upon exchange of such Old
                             Capital Securities (other than Old Capital
                             Securities which represent an unsold allotment from
                             the original sale of the Old Capital Securities)
                             with a prospectus meeting the requirements of the
                             Securities Act, which may be the prospectus
                             prepared for an exchange offer so long as it
                             contains a description of the plan of distribution
                             with respect to the resale of such New Capital
                             Securities. Accordingly, this Prospectus, as it may
                             be amended or supplemented from time to time, may
                             be used by a Participating Broker-Dealer in
                             connection with resales of New Capital Securities
                             received in exchange for Old Capital Securities
                             where such Old Capital Securities were acquired by
                             such Participating Broker-Dealer for its own
                             account as a result of market-making or other
                             trading activities. Subject to certain provisions
                             set forth in the Registration Rights Agreement and
                             to the limitations described below under "The
                             Exchange Offer -- Resales of New Capital
                             Securities," the Corporation and the Trust have
                             agreed that this Prospectus, as it may be amended
                             or supplemented from time to time, may be used by a
                             Participating Broker-Dealer in connection with
                             resales of such New Capital Securities for a period
                             ending 90-days after the Expiration Date (subject
                             to extension under certain limited circumstances)
                             or, if earlier, when all such New Capital
                             Securities have been disposed of by such
                             Participating Broker-Dealer. See "Plan of
                             Distribution." Any Participating Broker-Dealer who
                             is an "affiliate" of the Corporation or the Trust
                             may not rely on such interpretive letters and must
                             comply with the registration and prospectus
                             delivery requirements of the Securities Act in
                             connection with any resale transaction. See "The
                             Exchange Offer -- Resales of New Capital
                             Securities."
 
EXCHANGE AGENT.............  The exchange agent with respect to the Exchange
                             Offer is The Chase Manhattan Bank (the "Exchange
                             Agent"). The applicable addresses, and telephone
                             and facsimile numbers, of the Exchange Agent are
                             set forth in "The Exchange Offer -- Exchange Agent"
                             and in the Letter of Transmittal.
 
USE OF PROCEEDS............  Neither the Corporation nor the Trust will receive
                             any cash proceeds from the issuance of the New
                             Capital Securities offered hereby. See "Use of
                             Proceeds."
 
CERTAIN UNITED STATES
FEDERAL INCOME TAX
  CONSIDERATIONS; ERISA
  CONSIDERATIONS...........  Holders of Old Capital Securities should review the
                             information set forth under "Certain Federal Income
                             Tax Considerations" and "ERISA Considerations"
                             prior to tendering Old Capital Securities in the
                             Exchange Offer.
                                       12
<PAGE>   14
 
                           THE NEW CAPITAL SECURITIES
 
SECURITIES OFFERED.........  Up to $150,000,000 aggregate Liquidation Amount of
                             the New Capital Securities which have been
                             registered under the Securities Act (Liquidation
                             Amount $1,000 per New Capital Security). The New
                             Capital Securities will be issued, and the Old
                             Capital Securities were issued, under the
                             Declaration. The New Capital Securities and any Old
                             Capital Securities which remain outstanding after
                             consummation of the Exchange Offer will vote
                             together as a single class for purposes of
                             determining whether holders of the requisite
                             percentage in outstanding Liquidation Amount
                             thereof have taken certain actions or exercised
                             certain rights under the Declaration. See
                             "Description of New Securities -- Description of
                             New Capital Securities -- Voting Rights; Amendment
                             of the Declaration." The terms of the New Capital
                             Securities are identical in all material respects
                             to the terms of the Old Capital Securities, except
                             that the New Capital Securities have been
                             registered under the Securities Act and will not be
                             subject to the $100,000 minimum Liquidation Amount
                             transfer restriction and certain other transfer
                             restrictions applicable to the Old Capital
                             Securities and will not provide for any increase in
                             the Distribution rate thereon. See "The Exchange
                             Offer -- Purpose of the Exchange Offer,"
                             "Description of New Securities" and "Description of
                             Old Securities."
 
DISTRIBUTION DATES.........  June 15 and December 15 of each year, commencing
                             June 15, 1997.
 
EXTENSION PERIODS..........  Distributions on the Capital Securities will be
                             deferred for the duration of any Extension Period
                             elected by the Corporation with respect to the
                             payment of interest on the Junior Subordinated
                             Debentures. No Extension Period will exceed 10
                             consecutive semi-annual periods or extend beyond
                             the Stated Maturity Date. See "Description of New
                             Securities -- Description of New Junior
                             Subordinated Debentures -- Option to Extend
                             Interest Payment Date" and "Certain United States
                             Federal Income Tax Considerations -- Interest
                             Income and Original Issue Discount."
 
RANKING....................  The New Capital Securities will rank pari passu,
                             and payments thereon will be made pro rata, with
                             the Old Capital Securities and the Common
                             Securities except as described under "Description
                             of New Securities -- Description of New Capital
                             Securities -- Subordination of Common Securities."
                             The New Junior Subordinated Debentures will rank
                             pari passu with the Old Junior Subordinated
                             Debentures, and all other junior subordinated
                             debentures issued by the Corporation (the "Other
                             Debentures") and sold to other trusts established
                             or to be established by the Corporation, in each
                             case similar to the Trust (the "Other Trusts"), and
                             will be unsecured and subordinate and junior in
                             right of payment to all Senior Indebtedness to the
                             extent and in the manner set forth in the
                             Indenture. See "Description of New Securities --
                             Description of New Junior Subordinated Debentures."
                             The New Guarantee will rank pari passuwith the Old
                             Guarantee, and all other guarantees issued by the
                             Corporation with respect to capital securities
                             issued or to be issued by Other Trusts (the "Other
                             Guarantees") and will constitute an unsecured
                             obligation of the Corporation and will rank
                             subordinate and junior in
                                       13
<PAGE>   15
 
                             right of payment to all Senior Indebtedness to the
                             extent and in the manner set forth in the Guarantee
                             Agreement. See "Description of New Securities --
                             Description of New Guarantee."
 
REDEMPTION.................  The Trust Securities are subject to mandatory
                             redemption in a Like Amount, (i) in whole but not
                             in part, on the Stated Maturity Date upon repayment
                             of the Junior Subordinated Debentures, (ii) in
                             whole but not in part, contemporaneously with the
                             optional prepayment of the Junior Subordinated
                             Debentures by the Corporation upon the occurrence
                             and continuation of a Special Event and (iii) in
                             whole or in part, at any time on or after the
                             Initial Optional Prepayment Date contemporaneously
                             with the optional prepayment by the Corporation of
                             the Junior Subordinated Debentures, in each case at
                             the applicable Redemption Price. See "Description
                             of New Securities -- Description of New Capital
                             Securities -- Redemption."
 
RATING.....................  The New Capital Securities are expected to be rated
                             "a2" by Moody's Investors Service, Inc. and "BBB"
                             by Standard & Poor's Ratings Services.
 
ABSENCE OF MARKET FOR THE
  NEW CAPITAL SECURITIES...  The New Capital Securities will be a new issue of
                             securities for which there currently is no market.
                             Although Merrill Lynch, Pierce, Fenner & Smith
                             Incorporated, and Salomon Brothers Inc, the initial
                             purchasers of the Old Capital Securities (the
                             "Initial Purchasers"), have informed the
                             Corporation and the Trust that they each currently
                             intend to make a market in the New Capital
                             Securities, they are not obligated to do so, and
                             any such market making may be discontinued at any
                             time without notice. Accordingly, there can be no
                             assurance as to the development or liquidity of any
                             market for the New Capital Securities. The Trust
                             and the Corporation do not intend to apply for
                             listing of the New Capital Securities on any
                             securities exchange or for inclusion in Nasdaq. See
                             "Plan of Distribution."
                                       14
<PAGE>   16
 
                                  RISK FACTORS
 
     Prospective investors should consider carefully, in addition to the other
information contained in this Prospectus, the following factors in connection
with the Exchange Offer and the New Capital Securities offered hereby.
 
RANKING OF SUBORDINATED OBLIGATIONS UNDER THE GUARANTEE AND THE JUNIOR
SUBORDINATED DEBENTURES
 
   
     The obligations of the Corporation under the Guarantee and under the Junior
Subordinated Debentures will be unsecured and will rank subordinate and junior
in right of payment to all present and future Senior Indebtedness of the
Corporation to the extent and in the manner set forth in the Indenture and the
Guarantee, respectively. No payment may be made of the principal of, or premium,
if any, or interest on the Junior Subordinated Debentures, or in respect of any
redemption, retirement, purchase or other acquisition of any of the Junior
Subordinated Debentures, at any time when (i) there shall have occurred and be
continuing a default in any payment in respect of any Senior Indebtedness, or
there has been an acceleration of the maturity thereof because of a default or
(ii) in the event of the acceleration of the maturity of the Junior Subordinated
Debentures until payment has been made on all Allocable Amounts of Senior
Indebtedness. At December 31, 1996, the aggregate principal amount of
outstanding Senior Indebtedness of the Corporation was approximately $178.3
million. Because the Corporation is a bank holding company, the right of the
Corporation to participate in any distribution of assets of any subsidiary upon
such subsidiary's liquidation or reorganization or otherwise (and thus the
ability of holders of the Capital Securities to benefit indirectly from such
distribution) is subject to the prior claims of creditors of that subsidiary,
except to the extent that the Corporation may itself be recognized as a creditor
of that subsidiary. At December 31, 1996, the subsidiaries of the Corporation
had total liabilities (excluding liabilities owed to the Corporation) of
approximately $17.5 billion, including deposits. In addition, the bank
subsidiaries of the Corporation (the "Banks") are subject to certain
restrictions imposed by federal law on any extensions of credit to, and certain
other transactions with, the Corporation and certain other affiliates, and on
investments in stock or other securities thereof. Such restrictions prevent the
Corporation and such other affiliates from borrowing from the Banks unless the
loans are secured by various types of collateral. Further, such secured loans,
other transactions and investments by any of the Banks are generally limited in
amount as to the Corporation and as to each of such other affiliates to 10% of
such Bank's capital and surplus and as to the Corporation and all of such other
affiliates to an aggregate of 20% of such Bank's capital and surplus. In
addition, payment of dividends to the Corporation by the Banks is subject to
ongoing review by banking regulators and is subject to various statutory
limitations and in certain circumstances requires approval by banking regulatory
authorities. None of the Indenture, the Guarantee, the Common Guarantee or the
Declaration places any limitation on the amount of secured or unsecured debt,
including Senior Indebtedness, that may be incurred by the Corporation or any of
its subsidiaries. See "Description of New Securities -- Description of New
Guarantee -- Status of New Guarantee" and "Description of New Securities --
Description of New Junior Subordinated Debentures -- Subordination."
    
 
     The ability of the Trust to pay amounts due on the Capital Securities is
dependent upon the Corporation making payments on the Junior Subordinated
Debentures as and when required.
 
OPTION TO EXTEND INTEREST PAYMENT PERIOD; TAX CONSIDERATIONS
 
     So long as no Debenture Event of Default shall have occurred and be
continuing, the Corporation will have the right under the Indenture to defer
payments of interest on the Junior Subordinated Debentures at any time or from
time to time for a period not exceeding 10 consecutive semi-annual periods with
respect to each Extension Period, provided that no Extension Period may extend
beyond the Stated Maturity Date. Upon any such deferral, semi-annual
Distributions on the Capital Securities by the Trust will be deferred (and the
amount of Distributions to which holders of the Capital Securities are entitled
will accumulate additional Distributions thereon at the rate of 8.32% per annum,
compounded semi-annually) from the relevant payment date for such Distributions
during any such Extension Period.
 
                                       15
<PAGE>   17
 
     The Corporation may extend any existing Extension Period, provided that
such extension does not cause such Extension Period to exceed 10 consecutive
semi-annual periods or to extend beyond the Stated Maturity Date. Upon the
expiration of any Extension Period and the payment of all interest then accrued
and unpaid on the Junior Subordinated Debentures (together with interest thereon
at the annual rate of 8.32%, compounded semi-annually, to the extent permitted
by applicable law), the Corporation may elect to begin a new Extension Period,
subject to the above requirements. There is no limitation on the number of times
that the Corporation may elect to begin an Extension Period. See "Description of
New Securities -- Description of New Capital Securities -- Distributions" and
"-- Description of New Junior Subordinated Debentures -- Option to Extend
Interest Payment Period."
 
     The Corporation has no current plan to exercise its right to defer payments
of interest on the Junior Subordinated Debentures. However, should the
Corporation exercise its right to defer payments of interest on the Junior
Subordinated Debentures, each holder of Capital Securities will be required to
accrue income (as original issue discount ("OID")) in respect of the deferred
stated interest allocable to its Capital Securities for United States federal
income tax purposes, which will be allocated but not distributed to holders of
Capital Securities. As a result, during an Extension Period, each holder of
Capital Securities will recognize income for United States federal income tax
purposes in advance of the receipt of cash and will not receive the cash related
to such income from the Trust if the holder disposes of the Capital Securities
prior to the record date for the payment of Distributions thereafter. See
"Certain United States Federal Income Tax Considerations -- Interest Income and
Original Issue Discount" and "-- Sales of Capital Securities."
 
     Should the Corporation elect to exercise its right to defer payments of
interest on the Junior Subordinated Debentures, the market price of the Capital
Securities is likely to be affected. A holder that disposes of its Capital
Securities during an Extension Period, therefore, might not receive the same
return on its investment as a holder that continues to hold its Capital
Securities. In addition, the mere existence of the Corporation's right to defer
payments of interest on the Junior Subordinated Debentures may cause the market
price of the Capital Securities to be more volatile than the market prices of
other securities that are not subject to such deferrals.
 
TAX EVENT REDEMPTION; POSSIBLE TAX LAW CHANGES AFFECTING THE CAPITAL SECURITIES
 
     Upon the occurrence and continuation of a Tax Event (as defined under
"Description of New Securities -- Description of New Junior Subordinated
Debentures -- Special Event Prepayment"), the Corporation will have the right to
prepay the Junior Subordinated Debentures in whole (but not in part) at the
Special Event Prepayment Price within 90 days following the occurrence of such
Tax Event and therefore cause a mandatory redemption of the Trust Securities at
the Special Event Redemption Price. The exercise of such right is subject to the
Corporation having received prior approval of the Federal Reserve to do so if
then required under applicable guidelines or policies of the Federal Reserve.
See "Description of New Securities -- Description of New Capital Securities --
Redemption."
 
     On February 6, 1997, as part of President Clinton's Fiscal 1998 Budget
Proposal, the United States Treasury Department proposed legislation that would,
among other things, deny an issuer a deduction for United States federal income
tax purposes for the payment of interest on instruments with characteristics
similar to the Junior Subordinated Debentures. If the proposed legislation were
enacted in its current form, it is not expected to apply to the Junior
Subordinated Debentures since the proposed effective date for this provision is
the date of first committee action. There can be no assurances, however, that
the proposed legislation, if enacted, or similar legislation enacted after the
date hereof would not adversely affect the tax treatment of the Junior
Subordinated Debentures, resulting in a Tax Event. The occurrence of a Tax Event
may result in the redemption of the Junior Subordinated Debentures for cash, in
which event the holders of the Capital Securities would receive cash in
redemption of their Capital Securities. See "Description of New Securities --
Description of New Capital Securities -- Redemption" and "-- Description of New
Junior Subordinated Debentures -- Special Event Prepayment." See also "Certain
Federal Income Tax Consequences -- Proposed Tax Legislation."
 
                                       16
<PAGE>   18
 
POSSIBLE ADVERSE EFFECT ON MARKET PRICES
 
     There can be no assurance as to the market prices for New Capital
Securities or New Junior Subordinated Debentures distributed to the holders of
New Capital Securities if a termination of the Trust were to occur. Accordingly,
the New Capital Securities or the New Junior Subordinated Debentures may trade
at a discount from the price that the investor paid to purchase the New Capital
Securities. Because holders of Capital Securities may receive Junior
Subordinated Debentures in liquidation of the Trust and because Distributions
are otherwise limited to payments on the Junior Subordinated Debentures,
prospective purchasers of New Capital Securities are also making an investment
decision with regard to the New Junior Subordinated Debentures and should
carefully review all the information regarding the New Junior Subordinated
Debentures contained herein. See "Description of New Securities -- Description
of New Junior Subordinated Debentures."
 
RIGHTS UNDER THE GUARANTEE
 
     The Chase Manhattan Bank will act as Guarantee Trustee and will hold the
Guarantee for the benefit of the holders of the Capital Securities. The Chase
Manhattan Bank will also act as Property Trustee and as Debenture Trustee under
the Indenture. Chase Manhattan Bank Delaware will act as Delaware Trustee under
the Declaration. The Guarantee will guarantee to the holders of the Capital
Securities the following payments, to the extent not paid by the Trust: (i) any
accumulated and unpaid Distributions required to be paid on the Capital
Securities, to the extent that the Trust has funds on hand legally available
therefor; (ii) the applicable Redemption Price with respect to any Capital
Securities called for redemption, to the extent that the Trust has funds on hand
legally available therefor; and (iii) upon a voluntary or involuntary
termination, winding up or liquidation of the Trust (unless the Junior
Subordinated Debentures are distributed to holders of the Capital Securities),
the lesser of (a) the aggregate of the Liquidation Amount and all accumulated
and unpaid Distributions to the date of payment, to the extent that the Trust
has funds on hand legally available therefor on such date and (b) the amount of
assets of the Trust remaining available for distribution to holders of the
Capital Securities on such date. The holders of a majority in Liquidation Amount
of the Capital Securities will have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Guarantee
Trustee in respect of the Guarantee or to direct the exercise of any trust power
conferred upon the Guarantee Trustee. Any holder of the Capital Securities may
institute a legal proceeding directly against the Corporation to enforce its
rights under the Guarantee without first instituting a legal proceeding against
the Trust, the Guarantee Trustee or any other person or entity. If the
Corporation defaults on its obligation to pay amounts payable under the Junior
Subordinated Debentures, the Trust will not have sufficient funds for the
payment of Distributions or amounts payable on redemption of the Capital
Securities or otherwise, and, in such event, holders of the Capital Securities
will not be able to rely upon the Guarantee for payment of such amounts.
Instead, in the event a Debenture Event of Default shall have occurred and be
continuing and such event is attributable to the failure of the Corporation to
pay principal of or premium, if any, or interest on the Junior Subordinated
Debentures on the payment date on which such payment is due and payable, then a
holder of Capital Securities may institute a legal proceeding directly against
the Corporation for enforcement of payment to such holder of the principal of or
premium, if any, or interest on such Junior Subordinated Debentures having a
principal amount equal to the Liquidation Amount of the Capital Securities of
such holder (a "Direct Action"). Notwithstanding any payments made to a holder
of Capital Securities by the Corporation in connection with a Direct Action, the
Corporation shall remain obligated to pay the principal of and premium, if any,
and interest on the Junior Subordinated Debentures, and the Corporation shall be
subrogated to the rights of the holder of such Capital Securities with respect
to payments on the Capital Securities to the extent of any payments made by the
Corporation to such holder in any Direct Action. Except as described herein,
holders of Capital Securities will not be able to exercise directly any other
remedy available to the holders of the Junior Subordinated Debentures or to
assert directly any other rights in respect of the Junior Subordinated
Debentures. See "Description of New Securities -- Description of New Junior
Subordinated Debentures -- Enforcement of Certain Rights by Holders of Capital
Securities," "--Description of New Junior Subordinated Debentures -- Debenture
Events of Default" and Description of New Securities "-- Description of New
Guarantee." The Declaration provides that each holder of Capital Securities by
acceptance thereof agrees to the provisions of the Indenture.
 
                                       17
<PAGE>   19
 
LIMITED VOTING RIGHTS
 
     Holders of Capital Securities generally will have voting rights relating
only to the modification of the terms of the Capital Securities, the termination
or liquidation of the Trust, and the exercise of the Trust's rights as holder of
the Junior Subordinated Debentures. Holders of Capital Securities will not be
entitled to vote to appoint, remove or replace, or to increase or decrease the
number of, the Issuer Trustees, which voting rights are vested exclusively in
the holder of the Common Securities, except as described under "Description of
New Securities -- Description of New Capital Securities -- Voting Rights;
Amendment of the Declaration" and "-- Removal of Issuer Trustees."
 
CONSEQUENCES OF A FAILURE TO EXCHANGE OLD CAPITAL SECURITIES
 
     The Old Capital Securities have not been registered under the Securities
Act or any state securities laws and therefore may not be offered, sold or
otherwise transferred except in compliance with the registration requirements of
the Securities Act and any other applicable securities laws, or pursuant to an
exemption therefrom or in a transaction not subject thereto, and in each case in
compliance with certain other conditions and restrictions. Old Capital
Securities which remain outstanding after consummation of the Exchange Offer
will continue to bear a legend reflecting such restrictions on transfer. In
addition, upon consummation of the Exchange Offer, holders of Old Capital
Securities which remain outstanding will not be entitled to any rights to have
such Old Capital Securities registered under the Securities Act or to any
similar rights under the Registration Rights Agreement (subject to certain
limited exceptions). The Corporation and the Trust do not intend to register
under the Securities Act any Old Capital Securities which remain outstanding
after consummation of the Exchange Offer (subject to such limited exceptions, if
applicable). To the extent that Old Capital Securities are tendered and accepted
in the Exchange Offer, a holder's ability to sell untendered Old Capital
Securities could be adversely affected.
 
     The New Capital Securities and any Old Capital Securities which remain
outstanding after consummation of the Exchange Offer will vote together as a
single class for purposes of determining whether holders of the requisite
percentage in outstanding Liquidation Amount thereof have taken certain actions
or exercised certain rights under the Declaration. See "Description of New
Securities -- Description of New Capital Securities -- Voting Rights; Amendment
of the Declaration."
 
   
     The Old Capital Securities provide, among other things, that, if a
registration statement relating to the Exchange Offer has not been declared
effective by June 21, 1997, the Distribution rate borne by the Old Capital
Securities, currently 8.32% per annum commencing on June 22, 1997 will increase
by 0.25% per annum until the Exchange Offer is consummated. Upon consummation of
the Exchange Offer, holders of Old Capital Securities will not be entitled to
any increase in the Distribution rate thereon or any further registration rights
under the Registration Rights Agreement, except under limited circumstances. See
"Description of Old Capital Securities."
    
 
ABSENCE OF PUBLIC MARKET
 
     The Old Capital Securities were issued to, and the Corporation believes the
Old Capital Securities are currently owned by, a relatively small number of
beneficial owners. The Old Capital Securities have not been registered under the
Securities Act and will be subject to restrictions on transferability if they
are not exchanged for the New Capital Securities. Although the New Capital
Securities generally may be resold or otherwise transferred by the holders (who
are not affiliates of the Corporation or the Trust) without compliance with the
registration requirements under the Securities Act, they will constitute a new
issue of securities with no established trading market. Old Capital Securities
may be transferred by the holders thereof only in blocks having a Liquidation
Amount of not less than $100,000 (100 Old Capital Securities). New Capital
Securities may be transferred by the holders thereof in blocks having a
Liquidation Amount of $1,000 (one New Capital Security) or integral multiples
thereof. The Corporation and the Trust have been advised by the Initial
Purchasers that the Initial Purchasers presently intend to make a market in the
New Capital Securities. However, the Initial Purchasers are not obligated to do
so and any market-making activity with respect to the New Capital Securities may
be discontinued at any time without notice. In addition, such
 
                                       18
<PAGE>   20
 
market-making activity will be subject to the limits imposed by the Securities
Act and the Exchange Act and may be limited during the Exchange Offer.
Accordingly, no assurance can be given that an active public or other market
will develop for the New Capital Securities or the Old Capital Securities or as
to the liquidity of or the trading market for the New Capital Securities or the
Old Capital Securities. If an active public market does not develop, the market
price and liquidity of the New Capital Securities may be adversely affected.
 
     If a public trading market develops for the New Capital Securities, future
trading prices will depend on many factors, including, among other things,
prevailing interest rates, the Corporation's results and the market for similar
securities. Depending on prevailing interest rates, the market for similar
securities and other factors, including the financial condition of the
Corporation, the New Capital Securities may trade at a discount.
 
     Notwithstanding the registration of the New Capital Securities in the
Exchange Offer, holders who are "affiliates" (as defined under Rule 405 of the
Securities Act) of the Corporation or the Trust may publicly offer for sale or
resell the New Capital Securities only in compliance with the provisions of Rule
144 under the Securities Act.
 
     Each broker-dealer that receives New Capital Securities for its own account
in exchange for Old Capital Securities, where such Old Capital Securities were
acquired by such broker-dealer as a result of market-making activities or other
trading activities, must acknowledge that it will deliver a prospectus in
connection with any resale of such New Capital Securities. See "Plan of
Distribution."
 
EXCHANGE OFFER PROCEDURES
 
   
     Issuance of the New Capital Securities in exchange for Old Capital
Securities pursuant to the Exchange Offer will be made only after a timely
receipt by the Trust of such Old Capital Securities, a properly completed and
duly executed Letter of Transmittal or Agents' Message in lieu thereof and all
other required documents. Therefore, holders of the Old Capital Securities
desiring to tender such Old Capital Securities in exchange for New Capital
Securities should allow sufficient time to ensure timely delivery. Neither the
Corporation nor the Trust is under any duty to give notification of defects or
irregularities with respect to the tenders of Old Capital Securities for
exchange.
    
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
     The following table sets forth the ratios of earnings to fixed charges of
the Corporation for the respective periods indicated.
 
   
<TABLE>
<CAPTION>
                                                                  YEARS ENDED DECEMBER 31,
                                                              --------------------------------
                                                              1996   1995   1994   1993   1992
                                                              ----   ----   ----   ----   ----
<S>                                                           <C>    <C>    <C>    <C>    <C>
Ratio of Earnings to Fixed Charges:
  Excluding interest on deposits............................  3.09x  2.84x  4.06x  6.22x  5.53x
  Including interest on deposits............................  1.58   1.55   1.78   1.88   1.60
</TABLE>
    
 
     For purposes of computing the ratios of earnings to fixed charges, earnings
represent net income (loss) before extraordinary items and cumulative effect of
changes in accounting principles plus applicable income taxes and fixed charges.
Fixed charges, excluding interest on deposits, include gross interest expense
(other than on deposits) and the proportion deemed representative of the
interest factor of rent expense, net of income from subleases. Fixed charges,
including gross interest on deposits, include all interest expense and the
proportion deemed representative of the interest factor of rent expense, net of
income from subleases.
 
                                       19
<PAGE>   21
 
                                USE OF PROCEEDS
 
     Neither the Corporation nor the Trust will receive any cash proceeds from
the issuance of the New Capital Securities. In consideration for issuing the New
Capital Securities in exchange for the Old Capital Securities as described in
this Prospectus, the Trust will receive Old Capital Securities in like
Liquidation Amount. The Old Capital Securities surrendered in exchange for the
New Capital Securities will be retired and cancelled.
 
   
     The proceeds to the Trust (without giving effect to expenses of the
offering payable by the Corporation) from the offering of the Old Capital
Securities was $150,000,000. All of the proceeds from the sale of Old Capital
Securities were invested by the Trust in the Junior Subordinated Debentures. The
net proceeds from the sale of the Old Junior Subordinated Debentures are being
used to effect open market purchases of outstanding shares of common stock of
the corporation from time to time. The precise amount and timing of the
application of such net proceeds used for such corporate purposes will depend on
prevailing market prices for the common stock. Pending such application by the
Corporation, such net proceeds may be temporarily invested in short-term
interest bearing securities.
    
 
     The Capital Securities will be eligible to qualify as Tier 1 capital under
the capital guidelines of the Federal Reserve.
 
                                       20
<PAGE>   22
 
                                 CAPITALIZATION
 
     The following table sets forth the actual unaudited capitalization of the
Corporation at September 30, 1996, as adjusted to give effect to the
consummation of the offering of Capital Securities and the application of the
estimated net proceeds from the sale of the Capital Securities. See "Use of
Proceeds." The table should be read in conjunction with the Corporation's
consolidated financial statements and notes thereto included in the documents
incorporated by reference herein. See "Incorporation of Certain Documents by
Reference."
 
<TABLE>
<CAPTION>
                                                                 SEPTEMBER 30,         DECEMBER 31,
                                                                      1996                 1996
                                                            ------------------------   ------------
                                                              ACTUAL     AS ADJUSTED      ACTUAL
                                                              ------     -----------      ------
                                                                        (IN THOUSANDS)
<S>                                                         <C>          <C>           <C>
Long-Term Debt............................................  $  601,720   $  601,720     $  547,194
Corporation obligated, mandatorily redeemable preferred
  securities of subsidiary trust holding solely
  subordinated debentures of the Corporation(1)...........         -0-      150,000        150,000
STOCKHOLDERS' EQUITY
Preferred Stock...........................................      11,424       11,424         11,344
Common Stock at $1.25 par value...........................      94,266       90,566         94,266
Capital surplus...........................................     139,696      139,696        145,411
Retained earnings.........................................   1,393,020    1,248,720      1,437,891
Treasury Stock............................................      (2,320)      (2,320)        (4,056)
Restricted Stock..........................................          (8)          (8)           -0-
Net unrealized gain (loss) on securities..................       8,738        8,738         19,191
                                                            ----------   ----------     ----------
Total stockholders' equity                                   1,644,816    1,496,816      1,704,047
                                                            ----------   ----------     ----------
     Total                                                  $2,246,536   $2,248,536     $2,401,241
                                                            ==========   ==========     ==========
</TABLE>
 
- -------------------------
(1) Reflects the Capital Securities. The Trust is a subsidiary of the
    Corporation and will hold the Junior Subordinated Debentures as its sole
    asset.
 
                                       21
<PAGE>   23
 
                             SUMMARY FINANCIAL DATA
 
   
     The summary below should be read in connection with the financial
information included in the Corporation's 1996 Annual Report on Form 10-K.
    
 
   
<TABLE>
<CAPTION>
                                                                            YEAR ENDED DECEMBER 31
                                                             ----------------------------------------------------
                                                               1996       1995       1994       1993       1992
                                                               ----       ----       ----       ----       ----
<S>                                                          <C>        <C>        <C>        <C>        <C>
BALANCE SHEET AT PERIOD END
  (MILLIONS OF DOLLARS)
Total Assets...............................................  $ 19,767   $ 19,168   $ 17,994   $ 16,412   $ 15,561
Securities.................................................     4,217      4,475      3,974      3,360      3,279
Loans......................................................    13,196     12,632     11,906     10,825      9,816
Earning assets.............................................    17,626     17,233     16,293     14,551     13,617
Deposits...................................................    15,214     14,312     13,409     13,133     12,756
Short-term borrowed funds..................................     1,869      2,303      2,196      1,178        900
Other debt.................................................       547        734        574        486        426
Stockholders' equity.......................................     1,704      1,525      1,513      1,359      1,237
EARNINGS AND DIVIDENDS
  (THOUSANDS OF DOLLARS)
Net interest revenue.......................................   750,379    725,947    698,838    659,939    626,371
Provision for loan losses..................................    42,647     36,756     23,891     29,090     50,733
Other operating revenue....................................   440,452    392,197    370,619    392,918    347,936
Other operating expense....................................   773,637    734,122    706,185    689,274    655,444
Net income.................................................   250,177    228,913    226,673    227,938    185,999
PER COMMON SHARE:
  Net income...............................................      1.68       1.50       1.49       1.50       1.25
  Dividends................................................      0.74       0.66       0.58       0.50       0.40
  Stockholders' equity.....................................     11.26      10.31       9.73       8.89       7.91
Average common shares (000's)..............................   148,061    151,432    150,391    148,262    143,983
PERFORMANCE RATIOS
Return on average assets...................................      1.31%      1.26%      1.37%      1.49%      1.29%
Return on average common equity............................     15.95      15.11      15.96      17.81      16.65
Equity to assets...........................................      8.62       7.95       8.41       8.28       7.94
Tangible equity to assets..................................      7.64       7.36       7.76       7.61       7.18
Total risk-based capital...................................     13.47      12.45      13.18      13.17      13.10
Loan loss reserve as a percentage of total loans...........      1.62       1.55       1.60       1.75       1.87
Nonperforming loans as a percentage of loans...............      0.65       0.72       0.58       0.63       0.76
Nonperforming assets as a percentage of loans and other
  real estate..............................................      0.72       0.77       0.69       0.81       1.17
Net loan charge-offs as a percentage of average loans......      0.30       0.27       0.25       0.25       0.40
Net interest margin........................................      4.51       4.55       4.89       5.04       5.11
Fee revenue as a percentage of average assets..............      2.30       2.18       2.26       2.56       2.39
Efficiency ratio(1)........................................     58.18      61.43      61.75      63.53      65.13
Ratio of earnings to fixed charges(2)
Excluding interest on deposits.............................      3.09x      2.84x      4.06x      6.22x      5.53x
Including interest on deposits.............................      1.58       1.55       1.78       1.88       1.60
</TABLE>
    
 
- -------------------------
   
(1) The efficiency ratio is operating expenses as a percent of net interest
    revenue on a fully taxable equivalent basis and other operating revenue
    excluding securities gains or losses. The calculation excludes nonrecurring
    items in 1996, 1995 and 1994.
    
 
   
(2) For purposes of computing these ratios, earnings represent income before
    income taxes plus fixed charges. Fixed charges, excluding interest on
    deposits, include interest (other than deposits), whether expensed or
    capitalized and that portion of rental expense deemed representative of the
    interest factor. Fixed charges, including interest on deposits, include all
    interest, whether expensed or capitalized, and that portion of rental
    expense deemed representative of the interest factor.
    
 
   
(3) The Corporation has completed a number of acquisitions during the periods
    presented which affects the comparability of information presented for
    various periods. See the Corporation's Annual Report on Form 10-K for the
    year ended December 31, 1996.
    
 
   
(4) All share and per share amounts have been adjusted to reflect the
    two-for-one stock split completed in February 1997.
    
 
                                       22
<PAGE>   24
 
                                   THE TRUST
 
   
     The Trust is a statutory business trust created under Delaware law pursuant
to (i) a declaration of trust, dated as of December 17, 1996, executed by the
Corporation, as Sponsor and the Delaware Trustee (the "Initial Declaration"),
and (ii) the filing of a certificate of trust with the Secretary of State of the
State of Delaware on December 17, 1996. The Initial Declaration was replaced by
an amended and restated declaration of trust executed on the Issue Date by the
Corporation, as Sponsor, the Issuer Trustees (as defined herein), and the
holders from time to time of the undivided beneficial interests in the assets of
the Trust (the "Declaration"). The Trust exists for the exclusive purposes of
(i) issuing and selling the Trust Securities, which represent undivided
beneficial interests in the assets of the Trust, (ii) investing the gross
proceeds from the sale of the Trust Securities in the Junior Subordinated
Debentures and (iii) engaging in only those other activities necessary,
advisable or incidental thereto. Accordingly, the Junior Subordinated Debentures
will be the sole assets of the Trust and payments under the Junior Subordinated
Debentures will be the sole revenues of the Trust. All of the Common Securities
will be owned directly by the Corporation. The Common Securities will rank pari
passu, and payments will be made thereon pro rata, with the Capital Securities,
except that upon the occurrence and during the continuance of an Event of
Default, the rights of the Corporation as holder of the Common Securities to
payments in respect of Distributions and payments upon liquidation, redemption
or otherwise will be subordinated and rank junior to the rights of the holders
of the Capital Securities. See "Description of New Capital Securities --
Subordination of Common Securities." The Corporation has acquired Common
Securities in a Liquidation Amount equal to at least 3% of the total capital of
the Trust. The Trust has a term of 31 years, but may terminate earlier as
provided in the Declaration. The Trust's business and affairs are conducted by
trustees (the "Issuer Trustees") appointed by the Corporation as the direct
holder of the Common Securities. The Issuer Trustees are The Chase Manhattan
Bank as Property Trustee (the "Property Trustee"), Chase Manhattan Bank Delaware
as Delaware Trustee (the "Delaware Trustee"), and three individual trustees (the
"Administrative Trustees"). The Chase Manhattan Bank, as Property Trustee, will
act as sole indenture trustee under the Declaration. The Chase Manhattan Bank
will also act as indenture trustee under the Guarantee and the Indenture. See
"Description of the Guarantee" and "Description of Junior Subordinated
Debentures." The holder of the Common Securities or, if an Event of Default
under the Declaration has occurred and is continuing, the holders of a majority
in Liquidation Amount of the Capital Securities, will be entitled to appoint,
remove or replace the Property Trustee and/or the Delaware Trustee. In no event
will the holders of the Capital Securities have the right to vote to appoint,
remove or replace the Administrative Trustees; such voting rights will be vested
exclusively in the holder of the Common Securities. The duties and obligations
of each Issuer Trustee are governed by the Declaration. The Corporation will pay
directly all fees, expenses, debts and obligations (other than the Trust
Securities) related to the Trust and the offering of the Capital Securities,
including all ongoing costs, expenses and liabilities of the Trust. The
principal executive office of the Trust is Firstar Capital Trust I, c/o Firstar
Corporation, 777 East Wisconsin Avenue, Milwaukee, Wisconsin 53201 Attention:
Chief Financial Officer.
    
 
                              FIRSTAR CORPORATION
 
   
     Firstar is a multibank holding company providing financial services at 243
branch locations primarily throughout the states of Wisconsin and Iowa and in
the Chicago and Minneapolis-St. Paul metropolitan areas. At December 31, 1996,
Firstar had total assets of $19.8 billion and total stockholders' equity of $1.7
billion. Firstar's bank subsidiaries in Wisconsin had 118 locations and total
assets of $10.3 billion of which Firstar Bank Milwaukee, the largest commercial
bank in Wisconsin, had 57 locations and total assets of $6.1 billion. Firstar's
bank subsidiaries in Iowa (with 51 locations), Chicago (with 40 locations) and
Minneapolis-St. Paul (with 31 locations) had total assets of $2.9 billion, $3.0
billion and $3.0 billion, respectively, as of that date. Subsidiary asset totals
are net of intercompany balances. At December 31, 1996, Firstar's trust and
investment management subsidiaries held $22.1 billion of assets under active
management. All of Firstar's bank subsidiaries are owned by three sub-bank
holding companies which are direct subsidiaries of Firstar.
    
 
     Firstar's subsidiaries offer a wide range of financial services to
businesses, individuals and governmental entities including accepting deposits,
making secured and unsecured business and personal loans, issuing and
 
                                       23
<PAGE>   25
 
servicing credit cards, engaging in correspondent banking services, providing
trust and investment management services, and conducting international banking
services for its local customers consisting of foreign trade financing, issuance
and confirmation of letters of credit, funds collection and foreign exchange
transactions. Firstar's subsidiaries also provide retail brokerage, mortgage
banking, insurance, and corporate computer and operations services.
 
     Firstar is incorporated in the state of Wisconsin and its principal
executive offices are located at 777 East Wisconsin Avenue, Milwaukee, Wisconsin
53201 (Telephone (414) 765-4321).
 
                               THE EXCHANGE OFFER
 
PURPOSE OF THE EXCHANGE OFFER
 
     In connection with the sale of the Old Capital Securities, the Corporation
and the Trust entered into the Registration Rights Agreement with the Initial
Purchasers, pursuant to which the Corporation and the Trust agreed to file and
to use their reasonable efforts to cause to become effective with the Commission
a registration statement with respect to the exchange of the Old Capital
Securities for the New Capital Securities. A copy of the Registration Rights
Agreement has been filed as an Exhibit to the Registration Statement of which
this Prospectus is a part.
 
   
     The Exchange Offer is being made to satisfy the contractual obligations of
the Corporation and the Trust under the Registration Rights Agreement. The form
and terms of the New Capital Securities are the same as the form and terms of
the Old Capital Securities except that the New Capital Securities have been
registered under the Securities Act and will not be subject to the $100,000
minimum Liquidation Amount transfer restriction and certain other transfer
restrictions applicable to the Old Capital Securities and will not provide for
any increase in the Distribution rate thereon. In that regard, the Old Capital
Securities provide, among other things, that, if a registration statement
relating to the Exchange Offer has not been declared effective by June 15, 1997,
the Distribution rate borne by the Old Capital Securities, currently 8.32%,
commencing on June 16, 1997 will increase by 0.25% per annum until the Exchange
Offer is consummated. Upon consummation of the Exchange Offer, holders of Old
Capital Securities will not be entitled to any increase in the Distribution rate
thereon or any further registration rights under the Registration Rights
Agreement, except under limited circumstances. See "Risk Factors -- Consequences
of a Failure to Exchange Old Capital Securities" and "Description of Old Capital
Securities."
    
 
     The Exchange Offer is not being made to, nor will the Trust accept tenders
for exchange from, holders of Old Capital Securities in any jurisdiction in
which the Exchange Offer or the acceptance thereof would not be in compliance
with the securities or blue sky laws of such jurisdiction.
 
   
     Unless the context requires otherwise, the term "holder" with respect to
the Exchange Offer means any person in whose name the Old Capital Securities are
registered on the books of the Trust or any other person who has obtained a
properly completed bond power from such holder, or any participant in The
Depository Trust Company ("DTC") system whose name appears on a security
position listing as the holder of such Old Capital Securities and who desires to
deliver such Old Capital Securities by book-entry transfer at DTC.
    
 
     Pursuant to the Exchange Offer, the Corporation will exchange promptly
after the Expiration Date, the Old Guarantee for the New Guarantee and the Old
Junior Subordinated Debentures, in an amount corresponding to the Old Capital
Securities accepted for exchange, for a like aggregate principal amount of the
New Junior Subordinated Debentures. The New Guarantee and New Junior
Subordinated Debentures have been registered under the Securities Act.
 
TERMS OF THE EXCHANGE OFFER
 
     The Trust hereby offers, upon the terms and subject to the conditions set
forth in this Prospectus and in the accompanying Letter of Transmittal, to
exchange up to $150,000,000 aggregate Liquidation Amount of New Capital
Securities for a like aggregate Liquidation Amount of Old Capital Securities
properly tendered on or prior to the Expiration Date and not properly withdrawn
in accordance with the procedures described
 
                                       24
<PAGE>   26
 
below. The Trust will issue, promptly after the Expiration Date, an aggregate
Liquidation Amount of up to $150,000,000 of New Capital Securities in exchange
for a like principal amount of outstanding Old Capital Securities tendered and
accepted in connection with the Exchange Offer. Holders may tender their Old
Capital Securities in whole or in part in a Liquidation Amount of not less than
$100,000 (100 Capital Securities) or any integral multiple of $1,000 Liquidation
Amount (one Capital Security) in excess thereof.
 
     The Exchange Offer is not conditioned upon any minimum Liquidation Amount
of Old Capital Securities being tendered. As of the date of this Prospectus,
$150,000,000 aggregate Liquidation Amount of Old Capital Securities is
outstanding.
 
     Holders of Old Capital Securities do not have any appraisal or dissenters'
rights in connection with the Exchange Offer. Old Capital Securities which are
not tendered for or are tendered but not accepted in connection with the
Exchange Offer will remain outstanding and be entitled to the benefits of the
Declaration, but will not be entitled to any further registration rights under
the Registration Rights Agreement, except under limited circumstances. See "Risk
Factors -- Consequences of a Failure to Exchange Old Capital Securities" and
"Description of Old Securities."
 
     If any tendered Old Capital Securities are not accepted for exchange
because of an invalid tender, the occurrence of certain other events set forth
herein or otherwise, certificates for any such unaccepted Old Capital Securities
will be returned, without expense, to the tendering holder thereof promptly
after the Expiration Date.
 
     Holders who tender Old Capital Securities in connection with the Exchange
Offer will not be required to pay brokerage commissions or fees or, subject to
the instructions in the Letter of Transmittal, transfer taxes with respect to
the exchange of Old Capital Securities in connection with the Exchange Offer.
The Corporation will pay all charges and expenses, other than certain applicable
taxes described below, in connection with the Exchange Offer. See "-- Fees and
Expenses."
 
     NEITHER THE CORPORATION, THE BOARD OF DIRECTORS OF THE CORPORATION NOR ANY
ISSUER TRUSTEE OF THE TRUST MAKES ANY RECOMMENDATION TO HOLDERS OF OLD CAPITAL
SECURITIES AS TO WHETHER TO TENDER OR REFRAIN FROM TENDERING ALL OR ANY PORTION
OF THEIR OLD CAPITAL SECURITIES PURSUANT TO THE EXCHANGE OFFER. IN ADDITION, NO
ONE HAS BEEN AUTHORIZED TO MAKE ANY SUCH RECOMMENDATION. HOLDERS OF OLD CAPITAL
SECURITIES MUST MAKE THEIR OWN DECISION WHETHER TO TENDER PURSUANT TO THE
EXCHANGE OFFER AND, IF SO, THE AGGREGATE AMOUNT OF OLD CAPITAL SECURITIES TO
TENDER BASED ON SUCH HOLDERS OWN FINANCIAL POSITION AND REQUIREMENTS.
 
   
     The term "Expiration Date" means 5:00 p.m., New York City time, on May 7,
1997 unless the Exchange Offer is extended by the Corporation or the Trust (in
which case the term "Expiration Date" shall mean the latest date and time to
which the Exchange Offer is extended).
    
 
     The Corporation and the Trust expressly reserve the right in their sole and
absolute discretion, subject to applicable law, at any time and from time to
time, (i) to delay the acceptance of the Old Capital Securities for exchange,
(ii) to terminate the Exchange Offer (whether or not any Old Capital Securities
have theretofore been accepted for exchange) if the Trust determines, in its
sole and absolute discretion, that any of the events or conditions referred to
under "-- Conditions to the Exchange Offer" have occurred or exist or have not
been satisfied, (iii) to extend the Expiration Date of the Exchange Offer and
retain all Old Capital Securities tendered pursuant to the Exchange Offer,
subject, however, to the right of holders of Old Capital Securities to withdraw
their tendered Old Capital Securities as described under "-- Withdrawal Rights,"
and (iv) to waive any condition or otherwise amend the terms of the Exchange
Offer in any respect. If the Exchange Offer is amended in a manner determined by
the Corporation and the Trust to constitute a material change, or if the
Corporation and the Trust waive a material condition of the Exchange Offer, the
Corporation and the Trust will promptly disclose such amendment by means of a
prospectus supplement that will be distributed to the holders of the Old Capital
Securities, and the Corporation and the Trust will extend the Exchange Offer to
the extent required by Rule 14e-1 under the Exchange Act.
 
                                       25
<PAGE>   27
 
     Any such delay in acceptance, extension, termination or amendment will be
followed promptly by oral (promptly confirmed in writing) or written notice
thereof to the Exchange Agent and by making a public announcement thereof, and
such announcement in the case of an extension will be made no later than 9:00
a.m., New York City time, on the next business day after the previously
scheduled Expiration Date. Without limiting the manner in which the Corporation
and the Trust may choose to make any public announcement and subject to
applicable law, the Corporation and the Trust shall have no obligation to
publish, advertise or otherwise communicate any such public announcement other
than by issuing a release to an appropriate news agency.
 
ACCEPTANCE FOR EXCHANGE AND ISSUANCE OF NEW CAPITAL SECURITIES
 
     Upon the terms and subject to the conditions of the Exchange Offer, the
Trust will exchange, and will issue to the Exchange Agent, New Capital
Securities for Old Capital Securities validly tendered and not withdrawn
promptly after the Expiration Date.
 
     In all cases, delivery of New Capital Securities in exchange for Old
Capital Securities tendered and accepted for exchange pursuant to the Exchange
Offer will be made only after timely receipt by the Exchange Agent of (i) Old
Capital Securities or a book-entry confirmation of a book-entry transfer of Old
Capital Securities into the Exchange Agent's account at DTC, (ii) the Letter of
Transmittal (or facsimile thereof), properly completed and duly executed, with
any required signature guarantees or (in case of a book-entry transfer) an
Agent's Message in lieu of the Letter of Transmittal, and (iii) any other
documents required by the Letter of Transmittal.
 
     The term "book-entry confirmation" means a timely confirmation of a
book-entry transfer of Old Capital Securities into the Exchange Agent's account
at DTC. The term "Agent's Message" means a message, transmitted by DTC to and
received by the Exchange Agent and forming a part of book-entry confirmation,
which states that DTC has received an express acknowledgment from the tendering
participant, which acknowledgment states that such participant has received and
agrees to be bound by the Letter of Transmittal and that the Trust and the
Corporation may enforce such Letter of Transmittal against such participant.
 
     Subject to the terms and conditions of the Exchange Offer, the Trust will
be deemed to have accepted for exchange, and thereby exchanged, Old Capital
Securities validly tendered and not withdrawn as, if and when the Trust gives
oral (promptly confirmed in writing) or written notice to the Exchange Agent of
the Trust's acceptance of such Old Capital Securities for exchange pursuant to
the Exchange Offer. The Exchange Agent will act as agent for the Trust for the
purpose of receiving tenders of Old Capital Securities, Letters of Transmittal
and related documents, and as agent for tendering holders for the purpose of
receiving Old Capital Securities, Letters of Transmittal and related documents
and transmitting New Capital Securities to validly tendering holders. Such
exchange will be made promptly after the Expiration Date. If for any reason
whatsoever, acceptance for exchange or the exchange of any Old Capital
Securities tendered pursuant to the Exchange Offer is delayed (whether before or
after the Trust's acceptance for exchange of Old Capital Securities) or the
Trust extends the Exchange Offer or is unable to accept for exchange or exchange
Old Capital Securities tendered pursuant to the Exchange Offer, then, without
prejudice to the Trust's rights set forth herein, the Exchange Agent may,
nevertheless, on behalf of the Trust and subject to Rule 14e-1(c) under the
Exchange Act, retain tendered Old Capital Securities and such Old Capital
Securities may not be withdrawn except to the extent tendering holders are
entitled to withdrawal rights as described under "-- Withdrawal Rights."
 
     Pursuant to the Letter of Transmittal or Agent's Message in lieu thereof, a
holder of Old Capital Securities will warrant and agree in the Letter of
Transmittal that it has full power and authority to tender, exchange, sell,
assign and transfer Old Capital Securities, that the Trust will acquire good,
marketable and unencumbered title to the tendered Old Capital Securities, free
and clear of all liens, restrictions, charges and encumbrances, and the Old
Capital Securities tendered for exchange are not subject to any adverse claims
or proxies. The holder also will warrant and agree that it will, upon request,
execute and deliver any additional documents deemed by the Trust or the Exchange
Agent to be necessary or desirable to complete the
 
                                       26
<PAGE>   28
 
exchange, sale, assignment, and transfer of the Old Capital Securities tendered
pursuant to the Exchange Offer.
 
PROCEDURES FOR TENDERING OLD CAPITAL SECURITIES
 
     VALID TENDER. Except as set forth below, in order for Old Capital
Securities to be validly tendered pursuant to the Exchange Offer, a properly
completed and duly executed Letter of Transmittal (or facsimile thereof), with
any required signature guarantees or (in the case of a book-entry transfer) an
Agent's Message in lieu of the Letter of Transmittal and any other required
documents, must be received by the Exchange Agent at one of its addresses set
forth under "-- Exchange Agent," and either (i) tendered Old Capital Securities
must be received by the Exchange Agent, or (ii) such Old Capital Securities must
be tendered pursuant to the procedures for book-entry transfer set forth below
and a book-entry confirmation, including an Agent's Message if the tendering
holder has not delivered a Letter of Transmittal, must be received by the
Exchange Agent, in each case on or prior to the Expiration Date, or (iii) the
guaranteed delivery procedures set forth below must be complied with.
 
     If less than all of the Old Capital Securities are tendered, a tendering
holder should fill in the amount of Old Capital Securities being tendered in the
appropriate box on the Letter of Transmittal or so indicate in an Agent's
Message in lieu of the Letter of Transmittal. The entire amount of Old Capital
Securities delivered to the Exchange Agent will be deemed to have been tendered
unless otherwise indicated.
 
     THE METHOD OF DELIVERY OF CERTIFICATES, THE LETTER OF TRANSMITTAL AND ALL
OTHER REQUIRED DOCUMENTS IS AT THE OPTION AND SOLE RISK OF THE TENDERING HOLDER,
AND DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE
AGENT. IF DELIVERY IS BY MAIL, REGISTERED MAIL, RETURN RECEIPT REQUESTED,
PROPERLY INSURED, OR AN OVERNIGHT DELIVERY SERVICE IS RECOMMENDED. IN ALL CASES,
SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.
 
     BOOK-ENTRY TRANSFER. The Exchange Agent will establish an account with
respect to the Old Capital Securities at DTC for purposes of the Exchange Offer
within two business days after the date of this Prospectus. Any financial
institution that is a participant in DTC's book-entry transfer facility system
may make a book-entry delivery of the Old Capital Securities by causing DTC to
transfer such Old Capital Securities into the Exchange Agent's account at DTC in
accordance with DTC's procedures for transfers. However, although delivery of
Old Capital Securities may be effected through book-entry transfer into the
Exchange Agent's account at DTC, the Letter of Transmittal (or facsimile
thereof), properly completed and duly executed, with any required signature
guarantees, or an Agent's Message in lieu of the Letter of Transmittal, and any
other required documents, must in any case be delivered to and received by the
Exchange Agent at its address set forth under "-- Exchange Agent" on or prior to
the Expiration Date, or the guaranteed delivery procedures set forth below must
be complied with.
 
     DELIVERY OF DOCUMENTS TO DTC IN ACCORDANCE WITH DTC'S PROCEDURES DOES NOT
CONSTITUTE DELIVERY TO THE EXCHANGE AGENT.
 
     SIGNATURE GUARANTEES. Certificates for the Old Capital Securities need not
be endorsed and signature guarantees on the Letter of Transmittal are
unnecessary unless (a) a certificate for the Old Capital Securities is
registered in a name other than that of the person surrendering the certificate
or (b) such holder completes the box entitled "Special Issuance Instructions" or
"Special Delivery Instructions" in the Letter of Transmittal. In the case of (a)
or (b) above, such certificates for Old Capital Securities must be duly endorsed
or accompanied by a properly executed bond power, with the endorsement or
signature on the bond power and on the Letter of Transmittal guaranteed by a
firm or other entity identified in Rule 17Ad-15 under the Exchange Act as an
"eligible guarantor institution," including (as such terms are defined therein):
(i) a bank; (ii) a broker, dealer, municipal securities broker or dealer or
government securities broker or dealer; (iii) a credit union; (iv) a national
securities exchange, registered securities association or clearing agency; or
(v) a savings association that is a participant in a Securities Transfer
Association (an "Eligible Institution"), unless surrendered on behalf of such
Eligible Institution. See Instruction 1 to the Letter of Transmittal.
 
                                       27
<PAGE>   29
 
     GUARANTEED DELIVERY. If a holder desires to tender Old Capital Securities
pursuant to the Exchange Offer and the certificates for such Old Capital
Securities are not immediately available or time will not permit all required
documents to reach the Exchange Agent on or prior to the Expiration Date, or the
procedure for book-entry transfer cannot be completed on a timely basis, such
Old Capital Securities may nevertheless be tendered, provided that all of the
following guaranteed delivery procedures are complied with:
 
          (a) such tenders are made by or through an Eligible Institution;
 
          (b) a properly completed and duly executed Notice of Guaranteed
     Delivery, substantially in the form accompanying the Letter of Transmittal,
     is received by the Exchange Agent, as provided below, on or prior to the
     Expiration Date; and
 
          (c) the certificates (or a book-entry confirmation) representing all
     tendered Old Capital Securities, in proper form for transfer, together with
     a properly completed and duly executed Letter of Transmittal (or facsimile
     thereof or Agent's Message in lieu thereof), with any required signature
     guarantees and any other documents required by the Letter of Transmittal,
     are received by the Exchange Agent within three New York Stock Exchange
     trading days after the date of execution of such Notice of Guaranteed
     Delivery.
 
     The Notice of Guaranteed Delivery may be delivered by hand, or transmitted
by facsimile or mailed to the Exchange Agent and must include a guarantee by an
Eligible Institution in the form set forth in such notice.
 
     Notwithstanding any other provision hereof, the delivery of New Capital
Securities in exchange for Old Capital Securities tendered and accepted for
exchange pursuant to the Exchange Offer will in all cases be made only after
timely receipt by the Exchange Agent of Old Capital Securities, or of a
book-entry confirmation with respect to such Old Capital Securities, and a
properly completed and duly executed Letter of Transmittal (or facsimile thereof
or Agent's Message in lieu thereof), together with any required signature
guarantees and any other documents required by the Letter of Transmittal.
Accordingly, the delivery of New Capital Securities might not be made to all
tendering holders at the same time, and will depend upon when Old Capital
Securities, book-entry confirmations with respect to Old Capital Securities and
other required documents are received by the Exchange Agent.
 
     The Trust's acceptance for exchange of Old Capital Securities tendered
pursuant to any of the procedures described above will constitute a binding
agreement between the tendering holder and the Trust upon the terms and subject
to the conditions of the Exchange Offer.
 
     DETERMINATION OF VALIDITY. All questions as to the form of documents,
validity, eligibility (including time of receipt) and acceptance for exchange of
any tendered Old Capital Securities will be determined by the Corporation and
the Trust, in their sole discretion, whose determination shall be final and
binding on all parties. The Corporation and the Trust reserve the absolute
right, in their sole and absolute discretion, to reject any and all tenders
determined by them not to be in proper form or the acceptance of which, or
exchange for, may, in the opinion of counsel to the Corporation and the Trust,
be unlawful. The Corporation and the Trust also reserve the absolute right,
subject to applicable law, to waive any of the conditions of the Exchange Offer
as set forth under "-- Conditions to the Exchange Offer" or any condition or
irregularity in any tender of Old Capital Securities of any particular holder
whether or not similar conditions or irregularities are waived in the case of
other holders.
 
     The interpretation by the Corporation and the Trust of the terms and
conditions of the Exchange Offer (including the Letter of Transmittal and the
instructions thereto) will be final and binding. No tender of Old Capital
Securities will be deemed to have been validly made until all irregularities
with respect to such tender have been cured or waived. Neither the Corporation,
the Trust, any affiliates or assigns of the Corporation or the Trust, the
Exchange Agent nor any other person shall be under any duty to give any
notification of any irregularities in tenders or incur any liability for failure
to give any such notification.
 
     If any Letter of Transmittal, endorsement, bond power, power of attorney,
or any other document required by the Letter of Transmittal is signed by a
trustee, executor, administrator, guardian, attorney-in-fact,
 
                                       28
<PAGE>   30
 
officer of a corporation or other person acting in a fiduciary or representative
capacity, such person should so indicate when signing, and unless waived by the
Corporation and the Trust, proper evidence satisfactory to the Corporation and
the Trust, in their sole discretion, of such person's authority to so act must
be submitted.
 
     A beneficial owner of Old Capital Securities that are held by or registered
in the name of a broker, dealer, commercial bank, trust company or other nominee
or custodian is urged to contact such entity promptly if such beneficial holder
wishes to participate in the Exchange Offer.
 
RESALES OF NEW CAPITAL SECURITIES
 
     The Trust is making the Exchange Offer for the New Capital Securities in
reliance on the position of the staff of the Division of Corporation Finance of
the Commission as set forth in certain interpretive letters addressed to third
parties in other transactions. However, neither the Corporation nor the Trust
sought its own interpretive letter and there can be no assurance that the staff
of the Division of Corporation Finance of the Commission would make a similar
determination with respect to the Exchange Offer as it has in such interpretive
letters to third parties. Based on these interpretations by the staff of the
Division of Corporation Finance of the Commission, and subject to the two
immediately following sentences, the Corporation and the Trust believe that New
Capital Securities issued pursuant to the Exchange Offer in exchange for Old
Capital Securities may be offered for resale, resold and otherwise transferred
by a holder thereof (other than a holder who is a broker-dealer) without further
compliance with the registration and prospectus delivery requirements of the
Securities Act, provided that such New Capital Securities are acquired in the
ordinary course of such holder's business and that such holder is not
participating, and has no arrangement or understanding with any person to
participate, in a distribution (within the meaning of the Securities Act) of
such New Capital Securities. However, any holder of Old Capital Securities who
is an "affiliate" of the Corporation or the Trust or who intends to participate
in the Exchange Offer for the purpose of distributing New Capital Securities, or
any broker-dealer who purchased Old Capital Securities from the Trust for resale
pursuant to Rule 144A or any other available exemption under the Securities Act,
(a) will not be able to rely on the interpretations of the staff of the Division
of Corporation Finance of the Commission set forth in the above-mentioned
interpretive letters, (b) will not be permitted or entitled to tender such Old
Capital Securities in the Exchange Offer and (c) must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with any sale or other transfer of such Old Capital Securities unless
such sale is made pursuant to an exemption from such requirements. In addition,
as described below, if any broker-dealer holds Old Capital Securities acquired
for its own account as a result of market-making or other trading activities and
exchanges such Old Capital Securities for New Capital Securities, then such
broker-dealer must deliver a prospectus meeting the requirements of the
Securities Act in connection with any resales of such New Capital Securities.
 
     Each holder of Old Capital Securities who wishes to exchange Old Capital
Securities for New Capital Securities in the Exchange Offer will be required to
represent that (i) it is not an "affiliate" of the Corporation or the Trust,
(ii) any New Capital Securities to be received by it are being acquired in the
ordinary course of its business, (iii) it has no arrangement or understanding
with any person to participate in a distribution (within the meaning of the
Securities Act) of such New Capital Securities, and (iv) if such holder is not a
broker-dealer, such holder is not engaged in, and does not intend to engage in,
a distribution (within the meaning of the Securities Act) of such New Capital
Securities. In addition, the Corporation and the Trust may require such holder,
as a condition to such holder's eligibility to participate in the Exchange
Offer, to furnish to the Corporation and the Trust (or an agent thereof) in
writing information as to the number of "beneficial owners" (within the meaning
of Rule 13d-3 under the Exchange Act) on behalf of whom such holder holds the
Old Capital Securities to be exchanged in the Exchange Offer. Each broker-dealer
that receives New Capital Securities for its own account pursuant to the
Exchange Offer must acknowledge that it acquired the Old Capital Securities for
its own account as the result of market-making activities or other trading
activities and must agree that it will deliver a prospectus meeting the
requirements of the Securities Act in connection with any resale of such New
Capital Securities. The Letter of Transmittal states that by so acknowledging
and by delivering a prospectus, a broker-dealer will not be deemed to admit that
it is an "underwriter" within the meaning of the Securities Act. Based on the
position taken by the staff of the Division of Corporation Finance of the
Commission in the interpretive letters referred to above, the
 
                                       29
<PAGE>   31
 
Corporation and the Trust believe that Participating Broker-Dealers who acquired
Old Capital Securities for their own accounts as a result of market-making
activities or other trading activities may fulfill their prospectus delivery
requirements with respect to the New Capital Securities received upon exchange
of such Old Capital Securities (other than Old Capital Securities which
represent an unsold allotment from the original sale of the Old Capital
Securities) with a prospectus meeting the requirements of the Securities Act,
which may be the prospectus prepared for an exchange offer so long as it
contains a description of the plan of distribution with respect to the resale of
such New Capital Securities. Accordingly, this Prospectus, as it may be amended
or supplemented from time to time, may be used by a Participating Broker-Dealer
during the period referred to below in connection with resales of New Capital
Securities received in exchange for Old Capital Securities where such Old
Capital Securities were acquired by such Participating Broker-Dealer for its own
account as a result of market-making or other trading activities. Subject to
certain provisions set forth in the Registration Rights Agreement, the
Corporation and the Trust have agreed that this Prospectus, as it may be amended
or supplemented from time to time, may be used by a Participating Broker-Dealer
in connection with resales of such New Capital Securities for a period ending
90-days after the Expiration Date (subject to extension under certain limited
circumstances described below) or, if earlier, when all such New Capital
Securities have been disposed of by such Participating Broker-Dealer. See "Plan
of Distribution." However, a Participating Broker-Dealer who intends to use this
Prospectus in connection with the resale of New Capital Securities received in
exchange for Old Capital Securities pursuant to the Exchange Offer must notify
the Corporation or the Trust, or cause the Corporation or the Trust to be
notified, on or prior to the Expiration Date, that it is a Participating
Broker-Dealer. Such notice may be given in the space provided for that purpose
in the Letter of Transmittal or may be delivered to the Exchange Agent at one of
the addresses set forth herein under "-- Exchange Agent." Any Participating
Broker-Dealer who is an "affiliate" of the Corporation or the Trust may not rely
on such interpretive letters and must comply with the registration and
prospectus delivery requirements of the Securities Act in connection with any
resale transaction.
 
     In that regard, each Participating Broker-Dealer who surrenders Old Capital
Securities pursuant to the Exchange Offer will be deemed to have agreed, by
execution of the Letter of Transmittal or delivery of an Agent's Message in lieu
thereof, that, upon receipt of notice from the Corporation or the Trust of the
occurrence of any event or the discovery of any fact which makes any statement
contained or incorporated by reference in this Prospectus untrue in any material
respect or which causes this Prospectus to omit to state a material fact
necessary in order to make the statements contained or incorporated by reference
herein, in light of the circumstances under which they were made, not misleading
or of the occurrence of certain other events specified in the Registration
Rights Agreement, such Participating Broker-Dealer will suspend the sale of New
Capital Securities (or the New Guarantee or the New Junior Subordinated
Debentures, as applicable) pursuant to this Prospectus until the Corporation or
the Trust has amended or supplemented this Prospectus to correct such
misstatement or omission and has furnished copies of the amended or supplemented
Prospectus to such Participating Broker-Dealer or the Corporation or the Trust
has given notice that the sale of the New Capital Securities (or the New
Guarantee or the New Junior Subordinated Debentures, as applicable) may be
resumed, as the case may be. If the Corporation or the Trust gives such notice
to suspend the sale of the New Capital Securities (or the New Guarantee or the
New Junior Subordinated Debentures, as applicable), it shall extend the 90-day
period referred to above during which Participating Broker-Dealers are entitled
to use this Prospectus in connection with the resale of New Capital Securities
by the number of days during the period from and including the date of the
giving of such notice to and including the date when Participating
Broker-Dealers shall have received copies of the amended or supplemented
Prospectus necessary to permit resales of the New Capital Securities or to and
including the date on which the Corporation or the Trust has given notice that
the sale of New Capital Securities (or the New Guarantee or the New Junior
Subordinated Debentures, as applicable) may be resumed, as the case may be.
 
WITHDRAWAL RIGHTS
 
     Except as otherwise provided herein, tenders of Old Capital Securities may
be withdrawn at any time on or prior to the Expiration Date.
 
                                       30
<PAGE>   32
 
     In order for a withdrawal to be effective, a written, telegraphic, telex or
facsimile transmission of such notice of withdrawal must be timely received by
the Exchange Agent at one of its addresses set forth under "-- Exchange Agent"
on or prior to the Expiration Date. Any such notice of withdrawal must specify
the name of the person who tendered the Old Capital Securities to be withdrawn,
the aggregate principal amount of Old Capital Securities to be withdrawn, and
(if certificates for such Old Capital Securities have been tendered) the name of
the registered holder of the Old Capital Securities as set forth on the Old
Capital Securities, if different from that of the person who tendered such Old
Capital Securities. If Old Capital Securities have been delivered or otherwise
identified to the Exchange Agent, then prior to the physical release of such Old
Capital Securities, the tendering holder must submit the serial numbers shown on
the particular Old Capital Securities to be withdrawn and the signature on the
notice of withdrawal must be guaranteed by an Eligible Institution, except in
the case of Old Capital Securities tendered for the account of an Eligible
Institution. If Old Capital Securities have been tendered pursuant to the
procedures for book-entry transfer set forth in "-- Procedures for Tendering Old
Capital Securities," the notice of withdrawal must specify the name and number
of the account at DTC to be credited with the withdrawal of Old Capital
Securities, in which case a notice of withdrawal will be effective if delivered
to the Exchange Agent by written, telegraphic, telex or facsimile transmission.
Withdrawals of tenders of Old Capital Securities may not be rescinded. Old
Capital Securities properly withdrawn will not be deemed validly tendered for
purposes of the Exchange Offer, but may be retendered at any subsequent time on
or prior to the Expiration Date by following any of the procedures described
above under "-- Procedures for Tendering Old Capital Securities."
 
     All questions as to the validity, form and eligibility (including time of
receipt) of such withdrawal notices will be determined by the Trust, in its sole
discretion, whose determination shall be final and binding on all parties.
Neither the Corporation, the Trust, any affiliates or assigns of the Corporation
or the Trust, the Exchange Agent nor any other person shall be under any duty to
give any notification of any irregularities in any notice of withdrawal or incur
any liability for failure to give any such notification. Any Old Capital
Securities which have been tendered but which are withdrawn will be returned to
the holder thereof promptly after withdrawal.
 
DISTRIBUTIONS ON NEW CAPITAL SECURITIES
 
     Holders of Old Capital Securities whose Old Capital Securities are accepted
for exchange will not receive Distributions on such Old Capital Securities and
will be deemed to have waived the right to receive any Distributions on such Old
Capital Securities accumulated from and including December 23, 1996.
Accordingly, holders of New Capital Securities as of the record date for the
payment of Distributions on June 15, 1997 will be entitled to receive
Distributions accumulated from and including December 23, 1996.
 
CONDITIONS TO THE EXCHANGE OFFER
 
     Notwithstanding any other provisions of the Exchange Offer, or any
extension of the Exchange Offer, the Corporation and the Trust will not be
required to accept for exchange, or to exchange, any Old Capital Securities for
any New Capital Securities, and, as described below, may terminate the Exchange
Offer (whether or not any Old Capital Securities have theretofore been accepted
for exchange) or may waive any conditions to or amend the Exchange Offer, if any
of the following conditions have occurred or exists or have not been satisfied:
 
          (a) there shall occur a change in the current interpretation by the
     staff of the Commission which permits the New Capital Securities issued
     pursuant to the Exchange Offer in exchange for Old Capital Securities to be
     offered for resale, resold and otherwise transferred by holders thereof
     (other than broker-dealers and any such holder which is an "affiliate" of
     the Corporation or the Trust within the meaning of Rule 405 under the
     Securities Act) without compliance with the registration and prospectus
     delivery provisions of the Securities Act provided that such New Capital
     Securities are acquired in the ordinary course of such holders' business
     and such holders have no arrangement or understanding with any person to
     participate in the distribution of such New Capital Securities; or
 
                                       31
<PAGE>   33
 
          (b) any law, statute, rule or regulation shall have been adopted or
     enacted which, in the judgment of the Corporation or the Trust, would
     reasonably be expected to impair its ability to proceed with the Exchange
     Offer; or
 
          (c) a stop order shall have been issued by the Commission or any state
     securities authority suspending the effectiveness of the Registration
     Statement or proceedings shall have been initiated or, to the knowledge of
     the Corporation or the Trust, threatened for that purpose or any
     governmental approval has not been obtained, which approval the Corporation
     or the Trust shall, in its sole discretion, deem necessary for the
     consummation of the Exchange Offer as contemplated hereby.
 
     If the Corporation or the Trust determines in its sole and absolute
discretion that any of the foregoing events or conditions has occurred or exists
or has not been satisfied, it may, subject to applicable law, terminate the
Exchange Offer (whether or not any Old Capital Securities have theretofore been
accepted for exchange) or may waive any such condition or otherwise amend the
terms of the Exchange Offer in any respect. If such waiver or amendment
constitutes a material change to the Exchange Offer, the Corporation or the
Trust will promptly disclose such waiver or amendment by means of a prospectus
supplement that will be distributed to the registered holders of the Old Capital
Securities and will extend the Exchange Offer to the extent required by Rule
14e-1 under the Exchange Act.
 
EXCHANGE AGENT
 
     The Chase Manhattan Bank has been appointed as Exchange Agent for the
Exchange Offer. Delivery of the Letters of Transmittal and any other required
documents, questions, requests for assistance, and requests for additional
copies of this Prospectus or of the Letter of Transmittal should be directed to
the Exchange Agent by registered or certified mail or by hand or overnight
delivery as follows:
 
         By Registered or Certified Mail or Hand or Overnight Delivery:
                            The Chase Manhattan Bank
                                55 Water Street
                            Room 234, North Building
                           New York, New York, 10041
                           Attention: Carlos Esteves
 
                             Confirm By Telephone:
                         Carlos Esteves: (212) 638-0828
 
                            Facsimile Transmissions:
                          (ELIGIBLE INSTITUTIONS ONLY)
                Carlos Esteves: (212) 638-7375 or (212) 344-9367
 
    Delivery to other than the above addresses or facsimile numbers will not
                          constitute a valid delivery.
 
FEES AND EXPENSES
 
     The Corporation has agreed to pay the Exchange Agent reasonable and
customary fees for its services and will reimburse it for its reasonable
out-of-pocket expenses in connection therewith. The Corporation will also pay
brokerage houses and other custodians, nominees and fiduciaries the reasonable
out-of-pocket expenses incurred by them in forwarding copies of this Prospectus
and related documents to the beneficial owners of Old Capital Securities, and in
handling or tendering for their customers.
 
     Holders who tender their Old Capital Securities for exchange will not be
obligated to pay any transfer taxes in connection therewith. If, however, New
Capital Securities are to be delivered to, or are to be issued in the name of,
any person other than the registered holder of the Old Capital Securities
tendered, or if a transfer tax is imposed for any reason other than the exchange
of Old Capital Securities in connection with the Exchange Offer, then the amount
of any such transfer taxes (whether imposed on the registered holder or any
other persons) will be payable by the tendering holder. If satisfactory evidence
of payment of such taxes or
 
                                       32
<PAGE>   34
 
exemption therefrom is not submitted with the Letter of Transmittal, the amount
of such transfer taxes will be billed directly to such tendering holder.
 
     Neither the Corporation nor the Trust will make any payment to brokers,
dealers or other nominees soliciting acceptances of the Exchange Offer.
 
                         DESCRIPTION OF NEW SECURITIES
 
DESCRIPTION OF NEW CAPITAL SECURITIES
 
     Pursuant to the terms of the Declaration, the Trust has issued the Old
Capital Securities and the Common Securities and will issue the New Capital
Securities pursuant to the Exchange Offer. The New Capital Securities will
represent preferred beneficial interests in the Trust and the holders of the New
Capital Securities and the Old Capital Securities will be entitled to a
preference over the Common Securities in certain circumstances with respect to
Distributions and amounts payable on redemption of the Trust Securities or
liquidation of the Trust. See "-- Subordination of Common Securities." The
Declaration has been qualified under the Trust Indenture Act of 1939, as amended
(the "Trust Indenture Act"). This summary of certain provisions of the New
Capital Securities and the Declaration does not purport to be complete and is
subject to, and is qualified in its entirety by reference to, all the provisions
of the Declaration and the Trust Indenture Act. Certain capitalized terms used
herein are defined in the Declaration.
 
     GENERAL. The Capital Securities, in certain circumstances, with respect to
the Common Securities (including the Old Capital Securities and the New Capital
Securities) are limited to $150,000,000 aggregate Liquidation Amount at any one
time outstanding. The Capital Securities will rank pari passu, and payments will
be made thereon pro rata, with the Old Capital Securities and the Common
Securities except as described under "-- Subordination of Common Securities."
Legal title to the Junior Subordinated Debentures will be held by the Property
Trustee in trust for the benefit of the holders of the Capital Securities and
the related Common Securities. The New Guarantee will be a guarantee on a
subordinated basis but will not guarantee payment of Distributions or amounts
payable on redemption of the New Capital Securities or on liquidation of the
Trust when the Trust does not have funds on hand legally available for such
payments. See "-- Description of New Guarantee."
 
     DISTRIBUTIONS. Distributions on the New Capital Securities will be
cumulative, will accumulate from December 23, 1996 and will be payable
semi-annually in arrears on June 15 and December 15 of each year, commencing
June 15, 1997, at the annual rate of 8.32% of the Liquidation Amount to the
holders of the New Capital Securities on the relevant record dates. The record
dates will be the first day of the month in which the relevant Distribution Date
(as defined below) falls. The amount of Distributions payable for any period
will be computed on the basis of a 360-day year of twelve 30-day months. In the
event that any date on which Distributions are payable on the New Capital
Securities is not a Business Day (as defined below), payment of the Distribution
payable on such date will be made on the next succeeding day that is a Business
Day (and without any interest or other payment in respect to any such delay), in
each case with the same force and effect as if made on such date (each date on
which Distributions are payable in accordance with the foregoing, a
"Distribution Date"). A "Business Day" shall mean any day other than a Saturday
or a Sunday, or a day on which banking institutions in The City of New York or
Milwaukee, Wisconsin are authorized or required by law or executive order to
remain closed.
 
     So long as no Debenture Event of Default shall have occurred and be
continuing, the Corporation will have the right under the Indenture to defer the
payment of interest on the Junior Subordinated Debentures at any time or from
time to time for a period not exceeding 10 consecutive semi-annual periods with
respect to each Extension Period, provided that no Extension Period may extend
beyond the Stated Maturity Date. Upon any such election, semi-annual
Distributions on the Capital Securities will be deferred by the Trust during any
such Extension Period. Distributions to which holders of the Capital Securities
are entitled during any such Extension Period will accumulate additional
Distributions thereon at the rate per annum of 8.32% thereof, compounded
semi-annually from the relevant Distribution Date, but not exceeding the
interest rate
 
                                       33
<PAGE>   35
 
then accruing on the Junior Subordinated Debentures. The term "Distributions,"
as used herein, shall include any such additional Distributions.
 
     During any Extension Period, the Corporation may further extend such
Extension Period, provided that such extension does not cause such Extension
Period to exceed 10 consecutive semi-annual periods or to extend beyond the
Stated Maturity Date. Upon the termination of any such Extension Period and the
payment of all amounts then due, and subject to the foregoing limitations, the
Corporation may elect to begin a new Extension Period. The Corporation must give
the Property Trustee, the Administrative Trustees and the Debenture Trustee
notice of its election of any Extension Period or any extension thereof at least
five Business Days prior to the earlier of (i) the date the Distributions on the
Capital Securities would have been payable except for the election to begin such
Extension Period or (ii) the date the Administrative Trustees are required to
give notice to any securities exchange or to holders of the Capital Securities
of the record date or the date such Distributions are payable but in any event
not less than five Business Days prior to such record date. There is no
limitation on the number of times that the Corporation may elect to begin an
Extension Period. See "-- Description of New Junior Subordinated
Debentures -- Option to Extend Interest Payment Period" and "Certain United
States Federal Income Tax Considerations -- Interest Income and Original Issue
Discount."
 
     During any Extension Period, the Corporation may not (i) declare or pay any
dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock
(which includes common and preferred stock) or (ii) make any payment of
principal of or premium, if any, or interest on or repay, repurchase or redeem
any debt securities of the Corporation (including Other Debentures) that rank
pari passu with or junior in right of payment to the Junior Subordinated
Debentures or (iii) make any guarantee payments with respect to any guarantee by
the Corporation of the debt securities of any subsidiary of the Corporation
(including Other Guarantees) if such guarantee ranks pari passu with or junior
in right of payment to the Junior Subordinated Debentures (other than (a)
dividends or distributions in shares of, or options, warrants or rights to
subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee, (d) as a result of a reclassification of the
Corporation's capital stock or the exchange or conversion of one class, or
series of the Corporation's capital stock for another class or series of the
Corporation's capital stock, (e) the purchase of fractional interests in shares
of the Corporation's capital stock pursuant to the conversion or exchange
provisions of such capital stock or the security being converted or exchanged,
and (f) purchases of common stock related to the issuance of common stock or
rights under any of the Corporation's benefit plans for its directors, officers
or employees or any of the Corporation's dividend reinvestment plans).
 
     Although the Corporation may in the future exercise its option to defer
payments of interest on the Junior Subordinated Debentures, the Corporation has
no such current intention.
 
     The revenue of the Trust available for distribution to holders of the
Capital Securities will be limited to payments under the New Junior Subordinated
Debentures in which the Trust will invest the proceeds from the issuance and
sale of the Trust Securities. See "-- Description of New Junior Subordinated
Debentures -- General." If the Corporation does not make interest payments on
the New Junior Subordinated Debentures, the Property Trustee will not have funds
available to pay Distributions on the New Capital Securities. The payment of
Distributions (if and to the extent the Trust has funds on hand legally
available for the payment of such Distributions) will be guaranteed by the
Corporation on a limited basis as set forth herein under "-- Description of New
Guarantee."
 
     REDEMPTION. Upon the repayment on the Stated Maturity Date or prepayment
prior to the Stated Maturity Date of the Junior Subordinated Debentures (other
than following a distribution of the Junior Subordinated Debentures to holders
of Capital Securities), the proceeds from such repayment or prepayment shall be
applied by the Property Trustee to redeem a Like Amount (as defined below) of
the Trust Securities, upon not less than 30 nor more than 60 days' notice of a
date of redemption (the "Redemption Date"), at the applicable Redemption Price,
which shall be equal to (i) in the case of the repayment of the Junior
 
                                       34
<PAGE>   36
 
Subordinated Debentures on the Stated Maturity Date, the Maturity Redemption
Price (equal to the principal of, and accrued and unpaid interest on, the Junior
Subordinated Debentures), (ii) in the case of the optional prepayment of the
Junior Subordinated Debentures before the Initial Optional Prepayment Date upon
the occurrence and continuation of a Special Event, the Special Event Redemption
Price (equal to the Special Event Prepayment Price in respect of the Junior
Subordinated Debentures) and (iii) in the case of the optional prepayment of the
Junior Subordinated Debentures other than as contemplated in clause (ii) above,
the Optional Redemption Price (equal to the Optional Prepayment Price in respect
of the Junior Subordinated Debentures). See "-- Description of Junior
Subordinated Debentures--Optional Prepayment" and "-- Special Event Prepayment."
 
     "Like Amount" means (i) with respect to a redemption of the Trust
Securities, Trust Securities having a Liquidation Amount equal to the principal
amount of Junior Subordinated Debentures to be paid in accordance with their
terms and (ii) with respect to a distribution of Junior Subordinated Debentures
upon the liquidation of the Trust, Junior Subordinated Debentures having a
principal amount equal to the Liquidation Amount of the Trust Securities of the
holder to whom such Junior Subordinated Debentures are distributed.
 
     The Corporation will have the option to prepay the Junior Subordinated
Debentures, (i) in whole or in part, on or after the Initial Optional Prepayment
Date, at the applicable Optional Prepayment Price and (ii) in whole but not in
part, at any time before the Initial Optional Prepayment Date, upon the
occurrence of a Special Event, at the Special Event Prepayment Price, in each
case subject to receipt of prior approval by the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
 
     LIQUIDATION OF THE TRUST AND DISTRIBUTION OF NEW JUNIOR SUBORDINATED
DEBENTURES. The Corporation will have the right at any time to terminate the
Trust and cause the New Junior Subordinated Debentures to be distributed to the
holders of the Trust Securities in liquidation of the Trust. Such right is
subject to (i) the Corporation having received an opinion of counsel to the
effect that such distribution will not be a taxable event to holders of New
Capital Securities and (ii) the prior approval of the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
 
     The Trust shall automatically terminate upon the first to occur of: (i)
certain events of bankruptcy, dissolution or liquidation of the Corporation or
the Trust; (ii) the distribution of a Like Amount of the Junior Subordinated
Debentures to the holders of the Trust Securities, if the Corporation, as
Sponsor, has given written direction to the Property Trustee to terminate the
Trust (which direction is optional and, except as described above, wholly within
the discretion of the Corporation, as Sponsor); (iii) redemption of all of the
Trust Securities as described under "-- Redemption" above; (iv) expiration of
the term of the Trust; and (v) the entry of an order for the dissolution of the
Trust by a court of competent jurisdiction.
 
     If a termination occurs as described in clause (i), (ii), (iv) or (v) of
the preceding paragraph, the Trust shall be liquidated by the Administrative
Trustees as expeditiously as the Administrative Trustees determine to be
possible by distributing, after satisfaction of liabilities to creditors of the
Trust as provided by applicable law, to the holders of the Trust Securities a
Like Amount of the New Junior Subordinated Debentures, in which event such
holders will be entitled to receive out of the assets of the Trust legally
available for distribution to holders, after satisfaction of liabilities to
creditors of the Trust as provided by applicable law, an amount equal to the
aggregate of the Liquidation Amount plus accumulated and unpaid Distributions
thereon to the date of payment (such amount being the "Liquidation
Distribution"). If the Liquidation Distribution can be paid only in part because
the Trust has insufficient assets on hand legally available to pay in full the
aggregate Liquidation Distribution, then the amounts payable directly by the
Trust on the Capital Securities and the Common Securities shall be paid on a pro
rata basis, except that if a Debenture Event of Default has occurred and is
continuing, the Capital Securities shall have a priority over the Common
Securities. See "-- Subordination of Common Securities." If an early termination
occurs as described in clause (v) above, the Junior Subordinated Debentures will
be subject to optional prepayment, in whole but not in part, on or after the
Initial Optional Prepayment Date.
 
     If the Corporation elects not to prepay the Junior Subordinated Debentures
prior to maturity in accordance with their terms and either elects not to or is
unable to liquidate the Trust and distribute the Junior
 
                                       35
<PAGE>   37
 
Subordinated Debentures to holders of the Trust Securities, the Trust Securities
will remain outstanding until the repayment of the Junior Subordinated
Debentures on the Stated Maturity Date.
 
     After the liquidation date is fixed for any distribution of Junior
Subordinated Debentures to holders of the Trust Securities, (i) the Trust
Securities will no longer be deemed to be outstanding, (ii) each registered
global certificate, if any, representing Trust Securities and held by DTC or its
nominee will be exchanged for registered global certificate representing the
Junior Subordinated Debentures to be delivered upon such distribution and (iii)
any certificates representing Trust Securities not held by DTC or its nominee
will be deemed to represent New Junior Subordinated Debentures having a
principal amount equal to the Liquidation Amount of such Trust Securities, and
bearing accrued and unpaid interest in an amount equal to the accumulated and
unpaid Distributions on such Trust Securities until such certificates are
presented to the Administrative Trustees or their agent for cancellation,
whereupon the Corporation will issue to such holder, and the Debenture Trustee
will authenticate, a certificate representing such Junior Subordinated
Debentures.
 
     There can be no assurance as to the market prices for the New Capital
Securities or the New Junior Subordinated Debentures that may be distributed in
exchange for the Trust Securities if a termination and liquidation of the Trust
were to occur. Accordingly, the New Capital Securities that an investor may
purchase, or the New Junior Subordinated Debentures that the investor may
receive on termination and liquidation of the Trust, may trade at a discount to
the price that the investor paid to purchase the New Capital Securities.
 
     REDEMPTION PROCEDURES. If applicable, Trust Securities shall be redeemed at
the applicable Redemption Price with the proceeds from the contemporaneous
repayment or prepayment of the New Junior Subordinated Debentures. Any
redemption of Trust Securities shall be made and the applicable Redemption Price
shall be payable on the Redemption Date only to the extent that the Trust has
funds legally available for the payment of such applicable Redemption Price. See
also "-- Subordination of Common Securities."
 
     If the Trust gives a notice of redemption in respect of the Capital
Securities, then, by 12:00 noon, New York City time, on the Redemption Date, to
the extent funds are legally available, with respect to the Capital Securities
held by DTC or its nominees, the Property Trustee will pay or cause the Paying
Agent to pay the Redemption Price to DTC. See "-- Form, Denomination, Book-Entry
Procedures and Transfer." With respect to the Capital Securities held in
certificated form, the Property Trustee, to the extent funds are legally
available, will give irrevocable instructions and authority to the paying agent
and will irrevocably deposit with the paying agent for the Capital Securities
funds sufficient to pay or cause the paying agent to pay the applicable
Redemption Price to the holders thereof upon surrender of their certificates
evidencing the Capital Securities. See "-- Payment and Paying Agency."
Distributions payable on or prior to the Redemption Date shall be payable to the
holders of such Capital Securities on the relevant record dates for the related
Distribution Dates. If notice of redemption shall have been given and funds
deposited with the Property Trustee to pay the Redemption Price for the New
Capital Securities called for redemption, then all rights of the holders of such
New Capital Securities will cease, except the right of the holders of the New
Capital Securities to receive the applicable Redemption Price, but without
interest on such Redemption Price, and the New Capital Securities will cease to
be outstanding. In the event that any Redemption Date of New Capital Securities
is not a Business Day, then the applicable Redemption Price payable on such date
will be paid on the next succeeding day that is a Business Day (and without any
interest or other payment in respect of any such delay). In the event that
payment of the applicable Redemption Price is improperly withheld or refused and
not paid either by the Trust or by the Corporation pursuant to the New Guarantee
as described under "-- Description of New Guarantee," (i) Distributions on
Capital Securities will continue to accumulate on the Redemption Price at the
then applicable rate, from the Redemption Date originally established by the
Trust to the date such applicable Redemption Price is actually paid, and (ii)
the actual payment date will be the Redemption Date for purposes of calculating
the applicable Redemption Price.
 
     Subject to applicable law (including, without limitation, United States
federal securities law and the regulations of the Federal Reserve), the
Corporation or its subsidiaries may at any time and from time to time purchase
outstanding Capital Securities by tender, in the open market or by private
agreement.
 
     Notice of any redemption will be mailed at least 30 days but not more than
60 days prior to the Redemption Date to each holder of Trust Securities at its
registered address. Unless the Corporation defaults
 
                                       36
<PAGE>   38
 
in payment of the applicable Prepayment Price on, or in the repayment of, the
Junior Subordinated Debentures, on and after the Redemption Date Distributions
will cease to accrue on the Trust Securities called for redemption.
 
     SUBORDINATION OF COMMON SECURITIES. Payment of Distributions on, and the
Redemption Price of, the Capital Securities and Common Securities, as
applicable, shall be made pro rata based on the Liquidation Amount of the
Capital Securities and Common Securities; provided, however, that if on any
Distribution Date or Redemption Date a Debenture Event of Default shall have
occurred and be continuing, no payment of any Distribution on, or applicable
Redemption Price of, any of the Common Securities, and no other payment on
account of the redemption, liquidation or other acquisition of the Common
Securities, shall be made unless payment in full in cash of all accumulated and
unpaid Distributions on all of the outstanding Capital Securities for all
Distribution periods terminating on or prior thereto or in the case of Capital
Securities called for redemption on a Redemption Date on or prior thereto, the
full amount of the Redemption Price therefor, shall have been made or provided
for, and all funds available to the Property Trustee shall first be applied to
the payment in full in cash of all Distributions on, or Redemption Price of, the
Capital Securities then due and payable.
 
     In the case of any Event of Default, the Corporation as holder of the
Common Securities will be deemed to have waived any right to act with respect to
such Event of Default until the effect of such Event of Default shall have been
cured, waived or otherwise eliminated. Until any such Event of Default has been
so cured, waived or otherwise eliminated, the Property Trustee shall act solely
on behalf of the holders of the Capital Securities and not on behalf of the
Corporation as holder of the Common Securities, and only the holders of the
Capital Securities will have the right to direct the Property Trustee to act on
their behalf.
 
     EVENTS OF DEFAULT; NOTICE. The occurrence of a Debenture Event of Default
(see "Description of New Junior Subordinated Debentures -- Debenture Events of
Default") constitutes an "Event of Default" under the Declaration.
 
     Within five Business Days after the occurrence of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit
notice of such Event of Default to the holders of the Capital Securities, the
Administrative Trustees and the Corporation, as Sponsor, unless such Event of
Default shall have been cured or waived. The Corporation, as Sponsor, and the
Administrative Trustees are required to file annually with the Property Trustee
a certificate as to whether or not they are in compliance with all the
conditions and covenants applicable to them under the Declaration.
 
     If a Debenture Event of Default has occurred and is continuing, the Capital
Securities shall have a preference over the Common Securities as described under
"-- Liquidation of the Trust and Distribution of New Junior Subordinated
Debentures" and "-- Subordination of Common Securities."
 
     REMOVAL OF ISSUER TRUSTEES. Unless a Debenture Event of Default shall have
occurred and be continuing, any Issuer Trustee may be removed at any time by the
holder of the Common Securities. If a Debenture Event of Default has occurred
and is continuing, the Property Trustee and the Delaware Trustee may be removed
at such time by the holders of a majority in Liquidation Amount of the
outstanding Capital Securities. In no event will the holders of the Capital
Securities have the right to vote to appoint, remove or replace the
Administrative Trustees, which voting rights are vested exclusively in the
Corporation as the holder of the Common Securities. No resignation or removal of
an Issuer Trustee and no appointment of a successor trustee shall be effective
until the acceptance of appointment by the successor trustee in accordance with
the provisions of the Declaration.
 
     MERGER OR CONSOLIDATION OF ISSUER TRUSTEES. Any Person into which the
Property Trustee, the Delaware Trustee or any Administrative Trustee that is not
a natural person may be merged or converted or with which it may be
consolidated, or any Person resulting from any merger, conversion or
consolidation to which such Issuer Trustee shall be a party, or any Person
succeeding to all or substantially all the corporate trust business of such
Issuer Trustee, shall be the successor of such Issuer Trustee under the
Declaration, provided such Person shall be otherwise qualified and eligible.
 
                                       37
<PAGE>   39
 
   
     MERGERS, CONSOLIDATIONS, AMALGAMATIONS OR REPLACEMENTS OF THE TRUST. The
Trust may not merge or convert with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to any corporation or other Person,
except as described below. The Trust may, at the request of the Corporation, as
Sponsor, with the consent of the Administrative Trustees but without the consent
of the holders of the Capital Securities, merge or convert with or into,
consolidate, amalgamate, or be replaced by or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to a trust
organized as such under the laws of any State; provided, that (i) such successor
entity either (a) expressly assumes all of the obligations of the Trust with
respect to the Capital Securities or (b) substitutes for the Capital Securities
other securities having substantially the same terms as the Capital Securities
(the "Successor Securities") so long as the Successor Securities rank the same
as the Capital Securities rank in priority with respect to distributions and
payments upon liquidation, redemption and otherwise, (ii) the Corporation
expressly appoints a trustee of such successor entity possessing the same powers
and duties as the Property Trustee with respect to the Junior Subordinated
Debentures, (iii) the Successor Securities are listed, or any Successor
Securities will be listed upon notification of issuance, on any national
securities exchange or other organization on which the Capital Securities are
then listed or quoted, if any, (iv) such merger, conversion, consolidation,
amalgamation, replacement, conveyance, transfer or lease does not cause the
Capital Securities (including any Successor Securities) to be downgraded by any
nationally recognized statistical rating organization, (v) such merger,
conversion, consolidation, amalgamation, replacement, conveyance, transfer or
lease does not adversely affect the rights, preferences and privileges of the
holders of the Capital Securities (including any Successor Securities) in any
material respect (other than any dilution of such holders' interests in the new
entity), (vi) such successor entity has a purpose substantially identical to
that of the Trust, (vii) prior to such merger, conversion, consolidation,
amalgamation, replacement, conveyance, transfer or lease, the Corporation has
received an opinion from independent counsel to the Trust experienced in such
matters to the effect that (a) such merger, conversion, consolidation,
amalgamation, replacement, conveyance, transfer or lease does not adversely
affect the rights, preferences and privileges of the holders of the Capital
Securities (including any Successor Securities) in any material respect (other
than any dilution of such holders' interests in the new entity), and (b)
following such merger, conversion, consolidation, amalgamation, replacement,
conveyance, transfer or lease, neither the Trust nor such successor entity will
be required to register as an investment company under the Investment Company
Act of 1940, as amended (the "Investment Company Act"), and (viii) the
Corporation or any permitted successor or assignee owns all of the common
securities of such successor entity and guarantees the obligations of such
successor entity under the Successor Securities at least to the extent provided
by the Guarantee. Notwithstanding the foregoing, the Trust shall not, except
with the consent of holders of 100% in Liquidation Amount of the Trust
Securities, consolidate, amalgamate, merge or convert with or into, or be
replaced by or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to any other entity or permit any other
entity to consolidate, amalgamate, merge or convert with or into, or replace it
if such consolidation, amalgamation, merger, conversion, replacement,
conveyance, transfer or lease would cause the Trust or the successor entity not
to be classified as a grantor trust for United States federal income tax
purposes In addition, the Property Trustee will be required pursuant to the
Indenture to exchange, as a part of the Exchange Offer, the Junior Subordinated
Debentures for the Exchange Debentures, which will have terms identical to the
Junior Subordinated Debentures except for the transfer restrictions under the
Securities Act, the $100,000 minimum aggregate principal amount transfer
restrictions and the provision for an increase in the interest rate thereon
under certain circumstances. See "Exchange Offer; Registration Rights."
    
 
     VOTING RIGHTS; AMENDMENT OF THE DECLARATION. Except as provided below and
under "-- Mergers, Consolidations, Amalgamations or Replacements of the Trust"
and "-- Description of New Guarantee -- Amendments and Assignment" and as
otherwise required by law and the Declaration, the holders of the New Capital
Securities will have no voting rights.
 
     The Declaration may be amended from time to time by the Corporation, the
Property Trustee and the Administrative Trustees, without the consent of the
holders of the Trust Securities (i) to cure any ambiguity, correct or supplement
any provisions in the Declaration that may be inconsistent with any other
provision, or to make any other provisions with respect to matters or questions
arising under the Declaration, which shall not be inconsistent with the other
provisions of the Declaration, or (ii) to modify, eliminate or add to any
 
                                       38
<PAGE>   40
 
provisions of the Declaration to such extent as shall be necessary to ensure
that the Trust will be classified for United States federal income tax purposes
as a grantor trust at all times that any Trust Securities are outstanding or to
ensure that the Trust will not be required to register as an "investment
company" under the Investment Company Act; provided, however, that in the case
of clause (i), such action shall not adversely affect in any material respect
the interests of the holders of the Trust Securities. Any amendments of the
Declaration pursuant to the foregoing shall become effective when notice thereof
is given to the holders of the Trust Securities. The Declaration may be amended
by the Issuer Trustees and the Corporation (i) with the consent of holders
representing a majority (based upon Liquidation Amount) of the outstanding Trust
Securities, and (ii) upon receipt by the Issuer Trustees of an opinion of
counsel to the effect that such amendment or the exercise of any power granted
to the Issuer Trustees in accordance with such amendment will not affect the
Trust's status as a grantor trust for United States federal income tax purposes
or the Trust's exemption from status as an "investment company" under the
Investment Company Act, provided that, without the consent of each holder of
Trust Securities, the Declaration may not be amended to (i) change the amount or
timing of any Distribution on the Trust Securities or otherwise adversely affect
the amount of any Distribution required to be made in respect of the Trust
Securities as of a specified date or (ii) restrict the right of a holder of
Trust Securities to institute suit for the enforcement of any such payment on or
after such date; it being understood that the New Capital Securities and any Old
Capital Securities which remain outstanding after consummation of the Exchange
Offer will vote together as a single class for purposes of determining whether
holders of the requisite percentage in outstanding Liquidation Amount thereof
have taken certain actions or exercised certain rights under the Declaration.
 
     So long as any Junior Subordinated Debentures are held by the Property
Trustee, the Issuer Trustees shall not (i) direct the time, method and place of
conducting any proceeding for any remedy available to the Debenture Trustee, or
executing any trust or power conferred on such Debenture Trustee with respect to
the Junior Subordinated Debentures, (ii) waive certain past defaults under the
Indenture, (iii) exercise any right to rescind or annul a declaration of
acceleration of the maturity of the principal of the Junior Subordinated
Debentures or (iv) consent to any amendment, modification or termination of the
Indenture or the Junior Subordinated Debentures, where such consent shall be
required, without, in each case, obtaining the prior approval of the holders of
a majority in Liquidation Amount of all outstanding Capital Securities;
provided, however, that where a consent under the Indenture would require the
consent of each holder of Junior Subordinated Debentures affected thereby, no
such consent shall be given by the Property Trustee without the prior approval
of each holder of the Capital Securities. The Issuer Trustees shall not revoke
any action previously authorized or approved by a vote of the holders of the
Capital Securities except by subsequent vote of such holders. The Property
Trustee shall notify each holder of Capital Securities of any notice of default
with respect to the Junior Subordinated Debentures. In addition to obtaining the
foregoing approvals of such holders of the Capital Securities, prior to taking
any of the foregoing actions, the Issuer Trustees shall obtain an opinion of
counsel experienced in such matters to the effect that the Trust will not be
classified as an association taxable as a corporation for United States federal
income tax purposes on account of such action.
 
     Any required approval of holders of New Capital Securities may be given at
a meeting of such holders convened for such purpose or pursuant to written
consent. The Property Trustee will cause a notice of any meeting at which
holders of New Capital Securities are entitled to vote, or of any matter upon
which action by written consent of such holders is to be taken, to be given to
each holder of record of New Capital Securities in the manner set forth in the
Declaration.
 
     No vote or consent of the holders of Capital Securities will be required
for the Trust to redeem and cancel the Capital Securities in accordance with the
Declaration.
 
     Notwithstanding that holders of the Capital Securities are entitled to vote
or consent under any of the circumstances described above, any of the Capital
Securities that are owned by the Corporation, the Issuer Trustees or any
affiliate of the Corporation or any Issuer Trustees, shall, for purposes of such
vote or consent, be treated as if they were not outstanding.
 
   
     FORM, DENOMINATION, BOOK-ENTRY PROCEDURES AND TRANSFER. The New Capital
Securities may be represented by one or more New Capital Securities in
registered, global form (collectively, the "Global
    
 
                                       39
<PAGE>   41
 
Capital Securities"). The Global Capital Securities will be deposited upon
issuance with the Property Trustee as custodian for DTC, in New York, New York,
and registered in the name of DTC or its nominee, in each case for credit to an
account of a direct or indirect participant in DTC as described below.
 
     Except as set forth below, the Global Capital Securities may be
transferred, in whole and not in part, only to another nominee of DTC or to a
successor of DTC or its nominee. Beneficial interests in the Global Capital
Securities may not be exchanged for Capital Securities in certificated form
except in the limited circumstances described below.
 
     DTC has advised the Trust and the Corporation that DTC is a limited purpose
trust company created to hold securities for its participating organizations
(collectively, the "Participants") and to facilitate the clearance and
settlement of transactions in those securities between Participants through
electronic book-entry changes in accounts of its Participants. The Participants
include securities brokers and dealers (including the Initial Purchasers),
banks, trust companies, clearing corporations and certain other organizations.
Access to DTC's system is also available to other entities such as banks,
brokers, dealers and trust companies that clear through or maintain a custodial
relationship with a Participant, either directly or indirectly (collectively,
the "Indirect Participants"). Persons who are not Participants may beneficially
own securities held by or on behalf of DTC only through the Participants or the
Indirect Participants. The ownership interest and transfer of ownership interest
of each actual purchaser of each security held by or on behalf of DTC are
recorded on the records of the Participants and Indirect Participants.
 
     DTC has also advised the Trust and the Corporation that, pursuant to
procedures established by it, (i) upon deposit of the Global Capital Securities,
DTC will credit the accounts of Participants with portions of the Liquidation
Amount of the Global Capital Securities and (ii) ownership of such interests in
the Global Capital Securities will be shown on, and the transfer of ownership
thereof will be effected only through, records maintained by DTC (with respect
to the Participants) or by the Participants and the Indirect Participants (with
respect to other owners of beneficial interests in the Global Capital
Securities).
 
     Except as described below, owners of beneficial interests in the Global
Capital Securities will not have Capital Securities registered in their name,
will not receive physical delivery of Capital Securities in certificated form
and will not be considered the registered owners or holders thereof under the
Declaration for any purpose.
 
     Payments in respect of the Global Capital Security registered in the name
of DTC or its nominee will be payable by the Property Trustee to DTC in its
capacity as the registered holder under the Declaration. Under the terms of the
Declaration, the Property Trustee will treat the persons in whose names the
Capital Securities, including the Global Capital Securities, are registered as
the owners thereof for the purpose of receiving such payments and for any and
all other purposes whatsoever. Consequently, neither the Property Trustee nor
any agent thereof has or will have any responsibility or liability for (i) any
aspect of DTC's records or any Participant's or Indirect Participant's records
relating to or payments made on account of beneficial interests in the Global
Capital Securities, or for maintaining, supervising or reviewing any of DTC's
records or any Participant's or Indirect Participant's records relating to the
beneficial interests in the Global Capital Securities or (ii) any other matter
relating to the actions and practices of DTC or any of its Participants or
Indirect Participants. DTC has advised the Trust and the Corporation that its
current practice, upon receipt of any payment in respect of securities such as
the Capital Securities, is to credit the accounts of the relevant Participants
with the payment on the payment date, in amounts proportionate to their
respective holdings in Liquidation Amount of beneficial interests in the
relevant security as shown on the records of DTC unless DTC has reason to
believe it will not receive payment on such payment date. Payments by the
Participants and the Indirect Participants to the beneficial owners of New
Capital Securities will be governed by standing instructions and customary
practices and will be the responsibility of the Participants or the Indirect
Participants and will not be the responsibility of DTC, the Property Trustee,
the Trust or the Corporation. Neither the Trust nor the Corporation or the
Property Trustee will be liable for any delay by DTC or any of its Participants
in identifying the beneficial owners of the New Capital Securities, and the
Trust, the Corporation and the Property Trustee may conclusively rely on and
will be protected in relying on instructions from DTC or its nominee for all
purposes.
 
                                       40
<PAGE>   42
 
     Beneficial interests in the Global Capital Securities will trade in DTC's
Same-Day Funds Settlement System and secondary market trading activity in such
interests will therefore settle in immediately available funds, subject in all
cases to the rules and procedures of DTC and its participants.
 
     DTC has advised the Trust and the Corporation that it will take any action
permitted to be taken by a holder of Capital Securities only at the direction of
one or more Participants to whose account with DTC interests in the Global
Capital Securities are credited and only in respect of such portion of the
Liquidation Amount of the Capital Securities as to which such Participant or
Participants has or have given such direction. However, if there is an Event of
Default under the Declaration, DTC reserves the right to exchange the Global
Capital Securities for Capital Securities in certificated form and to distribute
such Capital Securities to its Participants.
 
     The information in this section concerning DTC and its book-entry system
has been obtained from sources that the Trust and the Corporation believe to be
reliable, but neither the Trust nor the Corporation takes responsibility for the
accuracy thereof.
 
     A Global Capital Security is exchangeable for New Capital Securities in
registered certificated form if (i) DTC (x) notifies the Trust that it is
unwilling or unable to continue as Depositary for the Global Capital Security
and the Trust thereupon fails to appoint a successor Depositary within 90-days
or (y) has ceased to be a clearing agency registered under the Exchange Act,
(ii) the Corporation in its sole discretion elects to cause the issuance of the
New Capital Securities in certificated form or (iii) there shall have occurred
and be continuing an Event of Default or any event which after notice or lapse
of time or both would be an Event of Default under the Declaration. In addition,
beneficial interests in a Global Capital Security may be exchanged for
certificated New Capital Securities upon request but only upon at least 20-days'
prior written notice given to the Property Trustee by or on behalf of DTC in
accordance with customary procedures. In all cases, certificated New Capital
Securities delivered in exchange for any Global Capital Security or beneficial
interests therein will be registered in the names, and issued in any approved
denominations, requested by or on behalf of the Depositary (in accordance with
its customary procedures), unless the Property Trustee determines otherwise in
compliance with applicable law.
 
     PAYMENT AND PAYING AGENCY. Payments in respect of the New Capital
Securities held in global form shall be made to the Depositary, which shall
credit the relevant accounts at the Depositary on the applicable Distribution
Dates or in respect of the New Capital Securities that are not held by the
Depositary, such payments shall be made by check mailed to the address of the
holder entitled thereto as such address shall appear on the register. The paying
agent (the "Paying Agent") shall initially be the Property Trustee and any
co-paying agent chosen by the Property Trustee and acceptable to the
Administrative Trustees and the Corporation. The Property Trustee has initially
appointed Firstar Trust Company as paying agent. The Paying Agent shall be
permitted to resign as Paying Agent upon 30 days written notice to the Property
Trustee and the Corporation. In the event that the Property Trustee shall no
longer be the Paying Agent, the Administrative Trustees shall appoint a
successor (which shall be a bank or trust company acceptable to the
Administrative Trustees and the Corporation) to act as Paying Agent.
 
     REGISTRAR AND TRANSFER AGENT. The Property Trustee will act as registrar
and transfer agent for the New Capital Securities. The Property Trustee has
initially appointed Firstar Trust Company as co-registrar.
 
     Registration of transfers of the New Capital Securities will be effected
without charge by or on behalf of the Trust, but upon payment of any tax or
other governmental charges that may be imposed in connection with any transfer
or exchange. The Trust will not be required to register or cause to be
registered the transfer of the New Capital Securities after they have been
called for redemption.
 
     INFORMATION CONCERNING THE PROPERTY TRUSTEE. The Property Trustee is under
no obligation to exercise any of the powers vested in it by the Declaration at
the request of any holder of Trust Securities unless it is offered reasonable
indemnity against the costs, expenses and liabilities that might be incurred
thereby. If no Event of Default has occurred and is continuing and the Property
Trustee is required to decide between alternative causes of action, construe
ambiguous provisions in the Declaration or is unsure of the application of any
provision of the Declaration, and the matter is not one on which holders of the
Capital Securities or the
 
                                       41
<PAGE>   43
 
Common Securities are entitled under the Declaration to vote, then the Property
Trustee shall take such action as is directed by the Corporation and if not so
directed, shall take such action as it deems advisable and in the best interests
of the holders of the Trust Securities and will have no liability except for its
own bad faith, negligence or willful misconduct.
 
     MISCELLANEOUS. The Administrative Trustees are authorized and directed to
conduct the affairs of and to operate the Trust in such a way that the Trust
will not be deemed to be an "investment company" required to be registered under
the Investment Company Act or classified as an association taxable as a
corporation for United States federal income tax purposes and so that the Junior
Subordinated Debentures will be treated as indebtedness of the Corporation for
United States federal income tax purposes. In this connection, the Corporation
and the Administrative Trustees are authorized to take any action, not
inconsistent with applicable law, the certificate of trust of the Trust or the
Declaration, that the Corporation and the Administrative Trustees determine in
their discretion to be necessary or desirable for such purposes, as long as such
action does not materially adversely affect the interests of the holders of the
Trust Securities.
 
     Holders of the Trust Securities have no preemptive or similar rights.
 
     The Trust may not borrow money, issue debt, execute mortgages or pledge any
of its assets.
 
DESCRIPTION OF NEW JUNIOR SUBORDINATED DEBENTURES
 
     The Old Junior Subordinated Debentures were issued, and the New Junior
Subordinated Debentures will be issued, as separate series under the Indenture.
The Indenture has been qualified under the Trust Indenture Act. This summary of
certain terms and provisions of the Junior Subordinated Debentures and the
Indenture does not purport to be complete, and where reference is made to
particular provisions of the Indenture, such provisions, including the
definitions of certain terms, some of which are not otherwise defined herein,
are qualified in their entirety by reference to all of the provisions of the
Indenture and those terms made a part of the Indenture by the Trust Indenture
Act.
 
     GENERAL. Concurrently with the issuance of the Capital Securities, the
Trust invested the proceeds thereof, together with the consideration paid by the
Corporation for the Common Securities, in Old Junior Subordinated Debentures
issued by the Corporation. Pursuant to the Exchange Offer, the Corporation will
exchange the Old Junior Subordinated Debentures, in an amount corresponding to
the Old Capital Securities accepted for exchange, for a like aggregate principal
amount of the New Junior Subordinated Debentures promptly after the Expiration
Date.
 
     The New Junior Subordinated Debentures will bear interest at the annual
rate of 8.32% of the principal amount thereof, payable semi-annually in arrears
on June 15 and December 15 of each year (each, an "Interest Payment Date"),
commencing June 15, 1997, to the person in whose name each New Junior
Subordinated Debenture is registered, subject to certain exceptions, at the
close of business on the first day of the month in which the relevant payment
date falls. It is anticipated that, until the liquidation, if any, of the Trust,
each Junior Subordinated Debenture will be held in the name of the Property
Trustee in trust for the benefit of the holders of the Trust Securities. The
amount of interest payable for any period will be computed on the basis of a
360-day year of twelve 30-day months. In the event that any date on which
interest is payable on the New Junior Subordinated Debentures is not a Business
Day, then payment of the interest payable on such date will be made on the next
succeeding day that is a Business Day (and without any interest or other payment
in respect of any such delay), in each case with the same force and effect as if
made such date. Accrued interest that is not paid on the applicable Interest
Payment Date will bear additional interest on the amount thereof (to the extent
permitted by law) at the rate per annum of 8.32% thereof, compounded semi-
annually. The term "interest", as used herein, shall include semi-annual
interest payments, interest on semi-annual interest payments not paid on the
applicable Interest Payment Date and Additional Sums (as defined below), as
applicable.
 
     The New Junior Subordinated Debentures will mature on December 15, 2026
(the "Stated Maturity Date"). The New Junior Subordinated Debentures will rank
pari passu with the Old Junior Subordinated Debentures and with all Other
Debentures and will be unsecured and subordinate and junior in right of
 
                                       42
<PAGE>   44
 
payment to the extent and in the manner set forth in the Indenture to all Senior
Indebtedness. See "-- Subordination." The Corporation is a non-operating holding
company and almost all of the operating assets of the Corporation and its
consolidated subsidiaries are owned by such subsidiaries. The Corporation relies
primarily on dividends from such subsidiaries to meet its obligations. The
Corporation is a legal entity separate and distinct from its banking and
non-banking affiliates. The principal sources of the Corporation's income are
dividends, interest and fees from its banking and non-banking affiliates. The
bank subsidiaries of the Corporation (the "Banks") are subject to certain
restrictions imposed by federal law on any extensions of credit to, and certain
other transactions with, the Corporation and certain other affiliates, and on
investments in stock or other securities thereof. Such restrictions prevent the
Corporation and such other affiliates from borrowing from the Banks unless the
loans are secured by various types of collateral. Further, such secured loans,
other transactions and investments by any of the Banks are generally limited in
amount as to the Corporation and as to each of such other affiliates to 10% of
such Bank's capital and surplus and as to the Corporation and all of such other
affiliates to an aggregate of 20% of such Bank's capital and surplus. In
addition, payment of dividends to the Corporation by the Banks is subject to
ongoing review by banking regulators and is subject to various statutory
limitations and in certain circumstances requires approval by banking regulatory
authorities. Because the Corporation is a holding company, the right of the
Corporation to participate in any distribution of assets of any subsidiary upon
such subsidiary's liquidation or reorganization or otherwise, is subject to the
prior claims of creditors of the subsidiary, except to the extent the
Corporation may itself be recognized as a creditor of that subsidiary.
Accordingly, the New Junior Subordinated Debentures will be effectively
subordinated to all existing and future liabilities of the Corporation's
subsidiaries, and holders of New Junior Subordinated Debentures should look only
to the assets of the Corporation for payments on the New Junior Subordinated
Debentures. The Indenture does not limit the incurrence or issuance of other
secured or unsecured debt of the Corporation, including Senior Indebtedness. See
"-- Subordination."
 
     FORM, REGISTRATION AND TRANSFER. If the Junior Subordinated Debentures are
distributed to holders of the Trust Securities, such Junior Subordinated
Debentures may be represented by one or more global certificates registered in
the name of Cede & Co. as the nominee of DTC. The depositary arrangements for
such New Junior Subordinated Debentures are expected to be substantially similar
to those in effect for the New Capital Securities. For a description of DTC and
the terms of the depositary arrangements relating to payments, transfers, voting
rights, prepayments and other notices and other matters, see "-- Description of
New Capital Securities -- Form, Denomination, Book-Entry Procedures and
Transfer."
 
     PAYMENT AND PAYING AGENTS. Payment of principal of and premium, if any and
any interest on New Junior Subordinated Debentures will be made at the office of
the Debenture Trustee in The City of New York or at the office of such Paying
Agent or Paying Agents as the Corporation may designate from time to time,
except that at the option of the Corporation payment of any interest may be made
except in the case of New Junior Subordinated Debentures in global form, (i) by
check mailed to the address of the Person entitled thereto as such address shall
appear in the register for New Junior Subordinated Debentures or (ii) by
transfer to an account maintained by the Person entitled thereto as specified in
such register, provided that proper transfer instructions have been received by
the relevant Record Date. The Corporation has initially designated Firstar Trust
Company as co-Paying Agent. Payment of any interest on any New Junior
Subordinated Debenture will be made to the Person in whose name such New Junior
Subordinated Debenture is registered at the close of business on the Record Date
for such interest, except in the case of defaulted interest. The Corporation may
at any time designate additional Paying Agents or rescind the designation of any
Paying Agent; however the Corporation will at all times be required to maintain
a Paying Agent in each Place of Payment for the New Junior Subordinated
Debentures.
 
     Any moneys deposited with the Debenture Trustee or any Paying Agent, or
then held by the Corporation in trust, for the payment of the principal of and
premium, if any or interest on any New Junior Subordinated Debenture and
remaining unclaimed for two years after such principal and premium, if any or
interest has become due and payable shall, at the request of the Corporation, be
repaid to the Corporation and the holder of such New Junior Subordinated
Debenture shall thereafter look, as a general unsecured creditor, only to the
Corporation for payment thereof.
 
                                       43
<PAGE>   45
 
     OPTION TO EXTEND INTEREST PAYMENT DATE. So long as no Debenture Event of
Default has occurred and is continuing, the Corporation will have the right
under the Indenture at any time during the term of the Junior Subordinated
Debentures to defer the payment of interest at any time or from time to time for
a period not exceeding 10 consecutive semi-annual periods with respect to each
Extension Period, provided that no Extension Period may extend beyond the Stated
Maturity Date. At the end of such Extension Period, the Corporation must pay all
interest then accrued and unpaid (together with interest thereon at the annual
rate of 8.32%, compounded semi-annually, to the extent permitted by applicable
law). During an Extension Period, interest will continue to accrue and holders
of Junior Subordinated Debentures (and holders of the Trust Securities while
Trust Securities are outstanding) will be required to accrue interest income for
United States federal income tax purposes prior to the receipt of cash
attributable to such income. See "Certain United States Federal Income Tax
Considerations -- Interest Income and Original Issue Discount."
 
     During any Extension Period, the Corporation may not (i) declare or pay any
dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock
(which includes common and preferred stock) or (ii) make any payment of
principal, interest or premium, if any, on or repay, repurchase or redeem any
debt securities of the Corporation (including any Other Debentures) that rank
pari passu with or junior in right of payment to the Junior Subordinated
Debentures or (iii) make any guarantee payments with respect to any guarantee by
the Corporation of the debt securities of any subsidiary of the Corporation
(including any Other Guarantees) if such guarantee ranks pari passu with or
junior in right of payment to the Junior Subordinated Debentures (other than (a)
dividends or distributions in shares of or options, warrants or rights to
subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee, (d) as a result of, and only to the extent
required in order to avoid the issuance of fractional shares of capital stock
following a reclassification of the Corporation's capital stock or the exchange
or conversion of one class or series of the Corporation's capital stock for
another class or series of the Corporation's capital stock, (e) the purchase of
fractional interests in shares of the Corporation's capital stock pursuant to
the conversion or exchange provisions of such capital stock or the security
being converted or exchanged, and (f) purchases of common stock related to the
issuance of common stock or rights under any of the Corporation's benefit plans
for its directors, officers or employees or any of the Corporation's dividend
reinvestment plans).
 
     Prior to the termination of any Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 10 consecutive semi-annual periods or to
extend beyond the Stated Maturity Date. Upon the termination of any such
Extension Period and the payment of all amounts then due on any Interest Payment
Date, the Corporation may elect to begin a new Extension Period, subject to the
above requirements. No interest shall be due and payable during an Extension
Period, except at the end thereof. The Corporation must give the Property
Trustee, the Administrative Trustees and the Debenture Trustee notice of its
election of any Extension Period (or an extension thereof) at least five
Business Days prior to the earlier of (i) the date the Distributions on the
Trust Securities would have been payable except for the election to begin or
extend such Extension Period or (ii) the date the Administrative Trustees are
required to give notice to any securities exchange or to holders of New Capital
Securities of the record date or the date such Distributions are payable, but in
any event not less than five Business Days prior to such record date. The
Debenture Trustee shall give notice of the Corporation's election to begin or
extend a new Extension Period to the holders of the Capital Securities. There is
no limitation on the number of times that the Corporation may elect to begin an
Extension Period.
 
     OPTIONAL PREPAYMENT. The New Junior Subordinated Debentures will be
prepayable, in whole or in part, at the option of the Corporation on or after
the Initial Optional Prepayment Date, subject to the Corporation having received
prior approval of the Federal Reserve if then required under applicable capital
guidelines or policies of the Federal Reserve, at a prepayment price (the
"Optional Prepayment Price") equal to the percentage of the outstanding
principal amount of the New Junior Subordinated Debentures specified below,
 
                                       44
<PAGE>   46
 
plus, in each case, accrued interest thereon to the date of prepayment if
redeemed during the 12-month period beginning December 23 of the years indicated
below:
 
<TABLE>
<CAPTION>
YEAR                                                       PERCENTAGE
- ----                                                       ----------
<S>                                                         <C>
2006......................................................   104.160
2007......................................................   103.744
2008......................................................   103.328
2009......................................................   102.912
2010......................................................   102.496
2011......................................................   102.080
2012......................................................   101.664
2013......................................................   101.248
2014......................................................   100.832
2015......................................................   100.416
2016 and thereafter.......................................   100.000
</TABLE>
 
     SPECIAL EVENT PREPAYMENT. If a Special Event shall occur and be continuing,
the Corporation may, at any time prior to the Initial Optional Prepayment Date,
within 90 days after the occurrence of the Special Event, at its option and
subject to receipt of prior approval of the Federal Reserve if then required
under applicable capital guidelines or policies of the Federal Reserve, prepay
the Junior Subordinated Debentures in whole (but not in part) at a prepayment
price (the "Special Event Prepayment Price") equal to the greater of (i) 100% of
the principal amount of such Junior Subordinated Debentures or (ii) the sum, as
determined by a Quotation Agent, of the present values of the principal amount
and premium payable as part of the Optional Prepayment Price with respect to an
optional redemption of such Junior Subordinated Debentures on Initial Optional
Prepayment Date, together with scheduled payments of interest from the
prepayment date on a semi-annual basis (assuming a 360-day year consisting of
twelve 30-day months) at the Adjusted Treasury Rate, plus, in either case,
accrued and unpaid interest thereon to the date of prepayment.
 
     A "Special Event" means a Tax Event or a Regulatory Capital Event (as
defined below), as the case may be.
 
     A "Tax Event" means the receipt by the Corporation and the Trust of an
opinion of a nationally recognized tax counsel experienced in such matters to
the effect that, as a result of 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, or as a result of any official administrative pronouncement or judicial
decision interpreting or applying such laws or regulations, which amendment or
change is effective or such pronouncement or decision is announced on or after
the Issue Date, there is more than an insubstantial risk that (i) the Trust is,
or will be within 90 days of the date of such opinion, subject to United States
federal income tax with respect to income received or accrued on the Junior
Subordinated Debentures, (ii) interest payable by the Corporation on the Junior
Subordinated Debentures is not, or within 90 days of the date of such opinion
will not be, deductible by the Corporation, in whole or in part, for United
States federal income tax purposes, or (iii) the Trust is, or will be within 90
days of the date of such opinion, subject to more than a de minimis amount of
other taxes, duties or other governmental charges.
 
     A "Regulatory Capital Event" means that the Corporation shall have received
an opinion of independent bank regulatory counsel experienced in such matters to
the effect that, 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 rules, guidelines or policies of the Federal Reserve or
(b) any official administrative pronouncement or judicial decision interpreting
or applying such laws or regulations, which amendment or change is effective or
such pronouncement or decision is announced on or after the Issue Date, the
Capital Securities do not constitute, or within 90 days of the date of such
opinion, will not constitute, Tier 1 Capital (or its then equivalent); provided,
however, that a Regulatory Capital Event shall not occur by reason of the use of
the proceeds of the Junior Subordinated Debentures by the Corporation
contemplated herein.
 
                                       45
<PAGE>   47
 
     "Adjusted Treasury Rate" means, with respect to any prepayment date, the
rate per annum equal to (i) the yield, under the heading which represents the
average for the immediately prior week, appearing in the most recently published
statistical release designated "H.15(519)" or any successor publication which is
published weekly by the Federal Reserve and which established yields on actively
traded United States Treasury securities adjusted to constant maturity under the
caption "Treasury Constant Maturities," for the maturity date corresponding to
the Initial Optional Prepayment Date (if no maturity date is within three months
before or after the Initial Optional Prepayment Date, yields for the two
published maturities most closely corresponding to the Initial Optional
Prepayment Date shall be interpolated and the Adjusted Treasury Rate shall be
interpolated or extrapolated from such yields on a straight-line basis, rounding
to the nearest month) or (ii) if such release (or any successor release) is not
published during the week preceding the calculation date or does not contain
such yields, the rate per annum equal to the semi-annual equivalent yield to
maturity of the Comparable Treasury Issue, assuming a price for the Comparable
Treasury Issue (expressed as a percentage of its principal amount) equal to the
Comparable Treasury Price for such prepayment date plus, in either case (A)
1.35% if such prepayment date occurs on or prior to December 31, 1997 and (B)
 .50% in all other cases.
 
     "Comparable Treasury Issue" means the United States Treasury security
selected by the Quotation Agent as having a maturity date corresponding to the
Initial Optional Prepayment Date that would be utilized at the time of selection
and in accordance with customary financial practice, in pricing new issues of
corporate debt securities with a maturity date corresponding to the Initial
Optional Prepayment Date. If no United States Treasury security has a maturity
date which is within three months before or after the Initial Optional
Prepayment Date, the two most closely corresponding United States Treasury
securities shall be used as the Comparable Treasury Issue, and the calculation
of the Adjusted Treasury Rate pursuant to clause (ii) of the definition thereof
shall be interpolated or extrapolated on a straight-line basis, rounding to the
nearest month.
 
     "Quotation Agent" means the Reference Treasury Dealer appointed by the
Corporation. "Reference Treasury Dealer" means: (i) Merrill Lynch Government
Securities, Inc. and its respective successors; provided, however, that if the
foregoing shall cease to be a primary U.S. Government securities dealer in New
York City (a "Primary Treasury Dealer"), the Corporation shall substitute
therefor another Primary Treasury Dealer, and (ii) any other Primary Treasury
Dealer selected by the Corporation.
 
     "Comparable Treasury Price" means, with respect to any prepayment date, (i)
the average of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) on the third
Business Day preceding such prepayment date, as set forth in the daily
statistical release (or any successor release) published by the Federal Reserve
Bank of New York and designated "Composite 3:30 p.m. Quotations for U.S.
Government Securities" or (ii) if such release (or any successor release) is not
published or does not contain such prices on such Business Day, (A) the average
of five Reference Treasury Dealer Quotations for such prepayment date, after
excluding the highest and lowest such Reference Treasury Dealer Quotations, or
(B) if the Debenture Trustee obtains fewer than three such Reference Treasury
Dealer Quotations, the average of all such Quotations.
 
     "Reference Treasury Dealer Quotations" means, with respect to each
Reference Treasury Dealer and any prepayment date, the average, as determined by
the Debenture Trustee, of the bid and asked prices for the Comparable Treasury
Issue (expressed in each case as a percentage of its principal amount) quoted in
writing to the Debenture Trustee by such Reference Treasury Dealer at 5:00 p.m.,
New York City time, on the third Business Day preceding such prepayment date.
 
     "Additional Sums" means such additional amounts as may be necessary in
order that the amount of Distributions then due and payable by the Trust on the
outstanding Capital Securities and Common Securities shall not be reduced as a
result of any additional taxes, duties or other governmental charges to which
the Trust has become subject as a result of a Tax Event.
 
     Notice of any prepayment will be mailed at least 30 days but not more than
60 days before the redemption date to each holder of Junior Subordinated
Debentures to be prepaid at its registered address. Unless the Corporation
defaults in payment of the prepayment price, on and after the prepayment date
interest ceases to accrue on such Junior Subordinated Debentures called for
prepayment.
 
                                       46
<PAGE>   48
 
     If the Trust is required to pay any additional taxes, duties or other
governmental charges as a result of a Tax Event, the Corporation will pay as
additional amounts on the Junior Subordinated Debentures the Additional Sums.
 
     RESTRICTIONS ON CERTAIN PAYMENTS. The Corporation will also covenant that
it will not, (i) declare or pay any dividends or distributions on, or redeem,
purchase, acquire, or make a liquidation payment with respect to, any of the
Corporation's capital stock (which includes common and preferred stock) or (ii)
make any payment of principal, interest or premium, if any, on or repay or
repurchase or redeem any debt securities of the Corporation (including Other
Debentures) that rank pari passu with or junior in right of payment to the
Junior Subordinated Debentures or (iii) make any guarantee payments with respect
to any guarantee by the Corporation of any securities of any subsidiary of the
Corporation (including Other Guarantees) if such guarantee ranks pari passu or
junior in right of payment to the Junior Subordinated Debentures (other than (a)
dividends or distributions in shares of, or options, warrants or rights to
subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholder's rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee, (d) as a direct result of, and only to the extent
required in order to avoid the issuance of a fractional share of capital stock
following a reclassification of the Corporation's capital stock or the exchange
or conversion of one class or series of the Corporation's capital stock for
another class or series of the Corporation's capital stock, (e) the purchase of
fractional interests in shares of the Corporation's capital stock pursuant to
the conversion or exchange provisions of such capital stock or the security
being converted or exchanged, and (f) purchases of common stock related to the
issuance of common stock or rights under any of the Corporation's benefit plans
for its directors, officers or employees or any of the Corporation's dividend
reinvestment plans) if at such time (1) a Debenture Event of Default occurs, (2)
there shall have occurred any event of which the Corporation has actual
knowledge that (a) with the giving of notice or the lapse of time, or both,
would be a Debenture Event of Default and (b) in respect of which the
Corporation shall not have taken reasonable steps to cure, (3) the Corporation
shall be in default with respect to its payment of any obligation under the
Guarantee or (4) the Corporation shall have given notice of its election of an
Extension Period, or any extension thereof, as provided in the Indenture and
shall not have rescinded such notice, and such Extension Period, or any
extension thereof shall have commenced.
 
     The Corporation will also covenant (i) to maintain 100 percent ownership of
the Common Securities; provided, however, that any permitted successor of the
Corporation under the Indenture may succeed to the Corporation's ownership of
the Common Securities, (ii) to use its reasonable efforts to cause the Trust (a)
to remain a statutory business trust, except in connection with the distribution
of Junior Subordinated Debentures to the holders of Trust Securities in
liquidation of the Trust, the redemption of all of the Trust Securities of the
Trust, or certain mergers, consolidations or amalgamations, each as permitted by
the Declaration of the Trust, and (b) to continue not to be classified as an
association taxable as a corporation or a partnership for United States federal
income tax purposes and (iii) to use its reasonable efforts to cause each holder
of Trust Securities to be treated as owning an undivided beneficial interest in
the Junior Subordinated Debentures.
 
     MODIFICATION OF INDENTURE. From time to time the Corporation and the
Debenture Trustee may, without the consent of the holders of Junior Subordinated
Debentures, amend, waive or supplement the Indenture for specified purposes,
including, among other things, curing ambiguities, defects or inconsistencies
(provided that any such action does not materially adversely affect the interest
of the holders of Junior Subordinated Debentures) and qualifying, or maintaining
the qualification of, the Indenture under the Trust Indenture Act. The Indenture
contains provisions permitting the Corporation and the Debenture Trustee, with
the consent of the holders of a majority in principal amount of Junior
Subordinated Debentures, to modify the Indenture in a manner affecting the
rights of the holders of Junior Subordinated Debentures; provided, that no such
modification may, without the consent of the holders of each outstanding Junior
Subordinated Debenture so affected, (i) change the Stated Maturity, or reduce
the principal amount of the Junior Subordinated Debentures or reduce the rate or
extend the time of payment of interest thereon or (ii) reduce the percentage
 
                                       47
<PAGE>   49
 
of principal amount of Junior Subordinated Debentures, the holders of which are
required to consent to any such modification of the Indenture.
 
     DEBENTURE EVENTS OF DEFAULT. The Indenture provides that any one or more of
the following described events with respect to the Junior Subordinated
Debentures constitutes a "Debenture Event of Default" (whatever the reason for
such Debenture Event of Default and whether it shall be voluntary or involuntary
or be effected by operation of law or pursuant to any judgment, decree or order
of any court or any order, rule or regulation of any administrative or
governmental body):
 
          (i) failure for 30-days to pay any interest on the Junior Subordinated
     Debentures or any Other Debentures when due (subject to the deferral of any
     due date in the case of an Extension Period); or
 
          (ii) failure to pay any principal or premium, if any, on the Junior
     Subordinated Debentures or any Other Debentures when due whether at
     maturity, upon redemption, by declaration of acceleration of maturity or
     otherwise; or
 
          (iii) failure to observe or perform in any material respect certain
     other covenants contained in the Indenture for 90-days after written notice
     to the Corporation from the Debenture Trustee or the holders of at least
     25% in aggregate outstanding principal amount of Junior Subordinated
     Debentures; or
 
          (iv) certain events in bankruptcy, insolvency or reorganization of the
     Corporation.
 
     The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Debenture
Trustee. The Debenture Trustee or the holders of not less than 25% in aggregate
outstanding principal amount of the Junior Subordinated Debentures may declare
the principal due and payable immediately upon a Debenture Event of Default. The
holders of a majority in aggregate outstanding principal amount of the Junior
Subordinated Debentures may annul such declaration and waive the default if the
default (other than the non-payment of the principal of the Junior Subordinated
Debentures which has become due solely by such acceleration) has been cured and
a sum sufficient to pay all matured installments of interest and principal due
otherwise than by acceleration has been deposited with the Debenture Trustee.
 
     The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures affected thereby may, on behalf of the holders of
all the Junior Subordinated Debentures, waive any past default, except a default
in the payment of principal or premium, if any or interest (unless such default
has been cured and a sum sufficient to pay all matured installments of interest
and premium, if any and principal due otherwise than by acceleration has been
deposited with the Debenture Trustee or a default in respect of a covenant or
provision which under the Indenture cannot be modified or amended without the
consent of the holder of each outstanding Junior Subordinated Debenture.
 
     ENFORCEMENT OF CERTAIN RIGHTS BY HOLDERS OF NEW CAPITAL SECURITIES. If a
Debenture Event of Default shall have occurred and be continuing and such event
shall be attributable to the failure of the Corporation to pay interest or
premium, if any on or principal of the New Junior Subordinated Debentures on the
due date, a holder of New Capital Securities may institute a Direct Action. The
Corporation may not amend the Indenture to remove the foregoing right to bring a
Direct Action without the prior written consent of the holders of all of the New
Capital Securities. If the right to bring a Direct Action is removed following
the Exchange Offer, the Trust may become subject to the reporting obligations
under the Exchange Act. Notwithstanding any payments made to a holder of New
Capital Securities by the Corporation in connection with a Direct Action, the
Corporation shall remain obligated to pay the principal of or premium, if any or
interest on the New Junior Subordinated Debentures, and the Corporation shall be
subrogated to the rights of the holder of such New Capital Securities with
respect to payments on the New Capital Securities to the extent of any payments
made by the Corporation to such holder in any Direct Action.
 
     The holders of the New Capital Securities will not be able to exercise
directly any remedies, other than those set forth in the preceding paragraph,
available to the holders of the New Junior Subordinated Debentures. See "--
Description of New Capital Securities -- Events of Default; Notice."
 
                                       48
<PAGE>   50
 
     CONSOLIDATION, MERGER, SALE OF ASSETS AND OTHER TRANSACTIONS. The Indenture
provides that the Corporation shall not consolidate with or merge into any other
Person or convey, transfer or lease its properties and assets as an entirety or
substantially as an entirety to any Person, and no Person shall consolidate with
or merge into the Corporation or convey, transfer or lease its properties and
assets as an entirety or substantially as an entirety to the Corporation,
unless: (i) in case the Corporation consolidates with or merges into another
Person or conveys or transfers its properties and assets substantially as an
entirety to any Person, the successor Person is organized under the laws of the
United States or any State or the District of Columbia, and such successor
Person expressly assumes the Corporation's obligations on the Junior
Subordinated Debentures; (ii) immediately after giving effect thereto, no
Debenture Event of Default, and no event which, after notice or lapse of time or
both, would become a Debenture Event of Default, shall have occurred and be
continuing; and (iii) certain other conditions as prescribed in the Indenture
are met.
 
     The general provisions of the Indenture do not afford holders of the Junior
Subordinated Debentures protection in the event of a highly leveraged or other
transaction involving the Corporation that may adversely affect holders of the
New Junior Subordinated Debentures.
 
     SATISFACTION AND DISCHARGE. The Indenture provides that when, among other
things, all New Junior Subordinated Debentures not previously delivered to the
Debenture Trustee for cancellation (i) have become due and payable or (ii) will
become due and payable at maturity within one year, and the Corporation deposits
or causes to be deposited with the Debenture Trustee funds, in trust, for the
purpose and in an amount sufficient to pay and discharge the entire indebtedness
on the New Junior Subordinated Debentures not previously delivered to the
Debenture Trustee for cancellation, for the principal and premium, if any and
interest to the date of the deposit or to the Stated Maturity Date, as the case
may be, then the Indenture will cease to be of further effect (except as to the
Corporation's obligations to pay all other sums due pursuant to the Indenture
and to provide the officers' certificates and opinions of counsel described
therein), and the Corporation will be deemed to have satisfied and discharged
the Indenture.
 
     SUBORDINATION. In the Indenture, the Corporation has covenanted and agreed
that any Junior Subordinated Debentures will be subordinate and junior in right
of payment to all Senior Indebtedness to the extent provided in the Indenture.
Upon any payment or distribution of assets to creditors upon any liquidation,
dissolution, winding up, reorganization, assignment for the benefit of
creditors, marshalling of assets or any bankruptcy, insolvency, debt
restructuring or similar proceedings in connection with any insolvency or
bankruptcy proceeding of the Corporation, the holders of Senior Indebtedness
will first be entitled to receive payment in full of all Allocable Amounts (as
defined below) in respect of such Senior Indebtedness before the holders of
Junior Subordinated Debentures will be entitled to receive or retain any payment
in respect thereof.
 
     In the event of the acceleration of the maturity of Junior Subordinated
Debentures, the holders of all Senior Indebtedness outstanding at the time of
such acceleration will first be entitled to receive payment in full of all
Allocable Amounts in respect of such Senior Indebtedness before the holders of
Junior Subordinated Debentures will be entitled to receive or retain any payment
in respect of the Junior Subordinated Debentures.
 
     No payments on account of principal or premium, if any or interest, if any,
in respect of the Junior Subordinated Debentures may be made if there shall have
occurred and be continuing a default in any payment with respect to Senior
Indebtedness, or an event of default with respect to any Senior Indebtedness
resulting in the acceleration of the maturity thereof, or if any judicial
proceeding shall be pending with respect to any such default.
 
     "Allocable Amounts," when used with respect to any Senior Indebtedness,
means all amounts due or to become due on such Senior Indebtedness less, if
applicable, any amount which would have been paid to, and retained by, the
holders of such Senior Indebtedness (whether as a result of the receipt of
payments by the holders of such Senior Indebtedness from the Corporation or any
other obligor thereon or from any holders of, or trustee in respect of, other
indebtedness that is subordinate and junior in right of payment to such Senior
Indebtedness pursuant to any provision of such indebtedness for the payment over
of amounts received on account of such indebtedness to the holders of such
Senior Indebtedness or otherwise) but for the fact that such Senior Indebtedness
is subordinate or junior in right of payment to (or subject to a requirement
that
 
                                       49
<PAGE>   51
 
amounts received on such Senior Indebtedness be paid over to obligees on) trade
accounts payable or accrued liabilities arising in the ordinary course of
business.
 
     "Indebtedness" shall mean (i) any obligation of, or any obligation
guaranteed by, the Corporation for the repayment of borrowed money, whether or
not evidenced by bonds, debentures, notes or other written instruments and any
deferred obligation for the payment of the purchase price of property or assets
acquired other than in the ordinary course of business and (ii) all indebtedness
of the Corporation for claims in respect of derivative products such as interest
and foreign exchange rate contracts, commodity contracts and similar
arrangements, whether outstanding on the date of execution of the Indenture or
thereafter created, assumed or incurred. For purposes of this definition "claim"
shall have the meaning assigned in Section 101(5) of the Bankruptcy Code of
1978, as amended and in effect on the date of the execution of the Indenture.
 
     "Indebtedness Ranking on a Parity with the Junior Subordinated Debentures"
shall mean Indebtedness, whether outstanding on the date of execution of the
Indenture or thereafter created, assumed or incurred, which specifically by its
terms ranks equally with and not prior to the Junior Subordinated Debentures in
the right of payment upon the happening of the dissolution or winding-up or
liquidation or reorganization of the Corporation. The securing of any
Indebtedness, otherwise constituting Indebtedness Ranking on a Parity with the
Junior Subordinated Debentures, shall not be deemed to prevent such Indebtedness
from constituting Indebtedness Ranking on a Parity with the Junior Subordinated
Debentures.
 
     "Indebtedness Ranking Junior to the Junior Subordinated Debentures" shall
mean any Indebtedness, whether outstanding on the date of execution of the
Indenture or thereafter created, assumed or incurred, which specifically by its
terms ranks junior to and not equally with or prior to the Junior Subordinated
Debentures (and any other Indebtedness Ranking on a Parity with the Junior
Subordinated Debentures) in right of payment upon the happening of the
dissolution or winding-up or liquidation or reorganization of the Corporation.
The securing of any Indebtedness, otherwise constituting Indebtedness Ranking
Junior to the Junior Subordinated Debentures, shall not be deemed to prevent
such Indebtedness from constituting Indebtedness Ranking Junior to the Junior
Subordinated Debentures.
 
     "Senior Indebtedness" shall mean all Indebtedness, whether outstanding on
the date of execution of the Indenture or thereafter created, assumed or
incurred, except Indebtedness Ranking on a Parity with the Junior Subordinated
Debentures or Indebtedness Ranking Junior to the Junior Subordinated Debentures,
and any deferrals, renewals or extensions of such Senior Indebtedness.
 
     The Corporation is a non-operating holding company and almost all of the
operating assets of the Corporation are owned by the Corporation's subsidiaries.
The Corporation relies primarily on dividends from such subsidiaries to meet its
obligations for payment of principal and interest on its outstanding debt
obligations and corporate expenses. The Corporation is a legal entity separate
and distinct from its banking and non-banking affiliates. The principal sources
of the Corporation's income are dividends, interest and fees from its banking
and non-banking affiliates. The Banks are subject to certain restrictions
imposed by federal law on any extensions of credit to, and certain other
transactions with, the Corporation and certain other affiliates, and on
investments in stock or other securities thereof. Such restrictions prevent the
Corporation and such other affiliates from borrowing from the Banks unless the
loans are secured by various types of collateral. Further, such secured loans,
other transactions and investments by any of the Banks are generally limited in
amount as to the Corporation and as to each of such other affiliates to 10% of
such Bank's capital and surplus and as to the Corporation and all of such other
affiliates to an aggregate of 20% of such Bank's capital and surplus. In
addition, payment of dividends to the Corporation by the subsidiary banks is
subject to ongoing review by banking regulators and is subject to various
statutory limitations and in certain circumstances requires approval by banking
regulatory authorities. Accordingly, the Junior Subordinated Debentures will be
effectively subordinated to all existing and future liabilities of the
Corporation's subsidiaries. Holders of Junior Subordinated Debentures should
look only to the assets of the Corporation for payments of interest and
principal and premium, if any.
 
     The Indenture places no limitation on the amount of additional Senior
Indebtedness that may be incurred by the Corporation. The Corporation expects
from time to time to incur additional indebtedness constituting Senior
Indebtedness.
 
                                       50
<PAGE>   52
 
     GOVERNING LAW. The Indenture and the New Junior Subordinated Debentures
will be governed by, and construed in accordance with, the laws of the State of
New York.
 
     INFORMATION CONCERNING THE DEBENTURE TRUSTEE. Following the Exchange Offer
and the qualification of the Indenture under the Trust Indenture Act, the
Debenture Trustee shall have and be subject to all the duties and
responsibilities specified with respect to an indenture trustee under the Trust
Indenture Act. Subject to such provisions, the Debenture Trustee is under no
obligation to exercise any of the powers vested in it by the Indenture at the
request of any holder of Junior Subordinated Debentures, unless offered
reasonable indemnity by such holder against the costs, expenses and liabilities
which might be incurred thereby. The Debenture Trustee is not required to expend
or risk its own funds or otherwise incur personal financial liability in the
performance of its duties if the Debenture Trustee reasonably believes that
repayment or adequate indemnity is not reasonably assured to it.
 
DESCRIPTION OF NEW GUARANTEE
 
     The Old Guarantee was executed and delivered by the Corporation
concurrently with the issuance by the Trust of the Old Capital Securities for
the benefit of the holders from time to time of the Old Capital Securities.
Promptly after the Expiration Date, the Old Guarantee will be exchanged by the
Corporation for the New Guarantee for the benefit of the holders from time to
time of the New Capital Securities. The Guarantee Agreement has been qualified
under the Trust Indenture Act. This summary of certain provisions of the
Guarantee Agreement does not purport to be complete and is subject to, and
qualified in its entirety by reference to, all of the provisions of the
Guarantee Agreement, including the definitions therein of certain terms, and the
Trust Indenture Act. The Guarantee Trustee will hold the New Guarantee for the
benefit of the holders of the New Capital Securities.
 
     GENERAL. The Corporation will irrevocably agree to pay in full on a
subordinated basis, to the extent set forth herein, the Guarantee Payments (as
defined below) to the holders of the New Capital Securities, as and when due,
regardless of any defense, right of set-off or counterclaim that the Trust may
have or assert other than the defense of payment. The following payments with
respect to the New Capital Securities, to the extent not paid by or on behalf of
the Trust (the "Guarantee Payments"), will be subject to the New Guarantee: (i)
any accumulated and unpaid Distributions required to be paid on New Capital
Securities, to the extent the Trust has funds on hand legally available
therefor, (ii) the Redemption Price with respect to any New Capital Securities
called for redemption, to the extent that the Trust has funds on hand legally
available therefor, or (iii) upon a voluntary or involuntary termination and
liquidation of the Trust, the lesser of (a) the Liquidation Distribution and (b)
the amount of assets of the Trust remaining available for distribution to
holders of New Capital Securities. The Corporation's obligation to make a
Guarantee Payment may be satisfied by direct payment of the required amounts by
the Corporation to the holders of the New Capital Securities or by causing the
Trust to pay such amounts to such holders.
 
     The New Guarantee will rank subordinate and junior in right of payment to
all Senior Indebtedness to the extent provided therein. See "-- Status of New
Guarantee". Because the Corporation is a holding company, the right of the
Corporation to participate in any distribution of assets of any subsidiary upon
such subsidiary's liquidation or reorganization or otherwise, is subject to the
prior claims of creditors of that subsidiary, except to the extent the
Corporation may itself be recognized as a creditor of that subsidiary.
Accordingly, the Corporation's obligations under the New Guarantee will be
effectively subordinated to all existing and future liabilities of the
Corporation's subsidiaries, including deposits, and claimants should look only
to the assets of the Corporation for payments thereunder. See "-- Description of
New Junior Subordinated Debentures -- General." The New Guarantee does not limit
the incurrence or issuance of other secured or unsecured debt of the
Corporation, including Senior Indebtedness, whether under the Indenture, any
other indenture that the Corporation may enter into in the future or otherwise.
 
     The Corporation will, through the New Guarantee, the Declaration, the New
Junior Subordinated Debentures and the Indenture, taken together, fully,
irrevocably and unconditionally guarantee all of the Trust's obligations under
the New Capital Securities. No single document standing alone or operating in
conjunction with fewer than all of the other documents constitutes such
guarantee. It is only the combined
 
                                       51
<PAGE>   53
 
operation of these documents that has the effect of providing a full,
irrevocable and unconditional guarantee of the Trust's obligations under the New
Capital Securities. See "Relationship Among the New Capital Securities, the New
Junior Subordinated Debentures and the New Guarantee."
 
     STATUS OF NEW GUARANTEE. The New Guarantee will constitute an unsecured
obligation of the Corporation and will rank subordinate and junior in right of
payment to all Senior Indebtedness in the same manner as New Junior Subordinated
Debentures.
 
     The New Guarantee will rank pari passu with the Old Guarantee and with all
Other Guarantees (if any) issued by the Corporation after the Issue Date with
respect to capital securities (if any) issued by Other Trusts. The New Guarantee
will constitute a guarantee of payment and not of collection (i.e., the
guaranteed party may institute a legal proceeding directly against the
Corporation to enforce its rights under the New Guarantee without first
instituting a legal proceeding against any other person or entity). The New
Guarantee will be held for the benefit of the holders of the New Capital
Securities. The New Guarantee will not be discharged except by payment of the
Guarantee Payments in full to the extent not paid by the Trust or upon
distribution to the holders of the New Capital Securities of the New Junior
Subordinated Debentures. The Guarantee does not place a limitation on the amount
of additional Senior Indebtedness that may be incurred by the Corporation. The
Corporation expects from time to time to incur additional indebtedness
constituting Senior Indebtedness.
 
     AMENDMENTS AND ASSIGNMENT. Except with respect to any changes that do not
materially adversely affect the rights of holders of the New Capital Securities
(in which case no consent will be required), the New Guarantee may not be
amended without the prior approval of the holders of a majority of the
Liquidation Amount of such outstanding New Capital Securities. The manner of
obtaining any such approval will be as set forth under "-- Description of New
Capital Securities -- Voting Rights; Amendment of the Declaration." All
guarantees and agreements contained in the Guarantee Agreement shall bind the
successors, assigns, receivers, trustees and representatives of the Corporation
and shall inure to the benefit of the holders of the New Capital Securities then
outstanding.
 
     EVENTS OF DEFAULT. An event of default under the New Guarantee will occur
upon the failure of the Corporation to perform any of its payment or other
obligations thereunder. The holders of a majority in Liquidation Amount of the
New Capital Securities will have the right to direct the time, method and place
of conducting any proceeding for any remedy available to the Guarantee Trustee
in respect of the New Guarantee or to direct the exercise of any trust or power
conferred upon the Guarantee Trustee under the New Guarantee.
 
     Any holder of the New Capital Securities may institute a legal proceeding
directly against the Corporation to enforce its rights under the New Guarantee
without first instituting a legal proceeding against the Trust, the Guarantee
Trustee or any other person or entity.
 
     The Corporation, as guarantor, will be required to file annually with the
New Guarantee Trustee a certificate as to whether or not the Corporation is in
compliance with all the conditions and covenants applicable to it under the New
Guarantee.
 
     TERMINATION OF THE NEW GUARANTEE. The New Guarantee will terminate and be
of no further force and effect upon full payment of the applicable Redemption
Price of the New Capital Securities, upon full payment of the Liquidation Amount
payable upon liquidation of the Trust or upon distribution of New Junior
Subordinated Debentures to the holders of the New Capital Securities. The New
Guarantee will continue to be effective or will be reinstated, as the case may
be, if at any time any holder of the New Capital Securities must restore payment
of any sums paid under the New Capital Securities or the New Guarantee.
 
     INFORMATION CONCERNING THE GUARANTEE TRUSTEE. The Guarantee Trustee is
under no obligation to exercise any of the powers vested in it by the New
Guarantee at the request of any holder of the New Capital Securities, unless
offered reasonable indemnity against the costs, expenses and liabilities which
might be incurred thereby. The Guarantee Trustee is not required to expend or
risk its own funds or otherwise incur personal financial liability in the
performance of its duties if it reasonably believes that repayment or adequate
or adequate indemnity is not reasonably assured to it.
 
                                       52
<PAGE>   54
 
     The Corporation or its affiliates maintain certain accounts and other
banking relationships with the Guarantee Trustee and its affiliates in the
ordinary course of business.
 
     GOVERNING LAW. The New Guarantee will be governed by and construed in
accordance with the internal laws of the State of New York.
 
                         DESCRIPTION OF OLD SECURITIES
 
   
     The terms of the Old Securities are identical in all materials respects to
the New Securities, except that (i) the Old Securities have not been registered
under the Securities Act, and thus are subject to certain transfer restrictions
and are entitled to certain rights under the applicable Registration Rights
Agreement (which rights will terminate upon consummation of the Exchange Offer,
except under limited circumstances), (ii) the New Capital Securities will not
contain the $100,000 minimum Liquidation Amount transfer restriction and certain
other restrictions on transfer applicable to Old Capital Securities, (iii) the
New Capital Securities will not provide for any increase in the Distribution
rate thereon, (iv) the New Junior Subordinated Debentures will not contain the
$100,000 minimum principal amount transfer restriction and (v) the New Junior
Subordinated Debentures will not provide for any increase in the liquidated
damages thereon. The Old Securities provide that, in the event that a
registration statement relating to the Exchange Offer has not been declared
effective by June 21, 1997, or, in certain limited circumstances, in the event a
shelf registration statement (the "Shelf Registration Statement") with respect
to the resale of the Old Capital Securities is not declared effective by June
21, 1997, then liquidated damages will accumulate (in addition to the stated
interest rate on the Old Junior Subordinated Debentures) at the rate of 0.25%
per annum on the principal amount of the Old Junior Subordinated Debentures and
Distributions will accrue (in addition to the stated Distribution rate on the
Old Capital Securities) at the rate of 0.25% per annum on the Liquidation Amount
of the Old Capital Securities, for the period from the occurrence of such event
until such time as such required Exchange Offer is consummated or any required
Shelf Registration Statement is effective. The New Securities are not, and upon
consummation of the Exchange Offer the Old Securities will not be, entitled to
any such additional interest or Distributions. Accordingly, holders of Old
Capital Securities should review the information set forth under "Risk Factors
- -- Certain Consequences of a Failure to Exchange Old Capital Securities" and
"Description of New Securities."
    
 
               RELATIONSHIP AMONG THE NEW CAPITAL SECURITIES, THE
            NEW JUNIOR SUBORDINATED DEBENTURES AND THE NEW GUARANTEE
 
FULL AND UNCONDITIONAL GUARANTEE
 
     Payments of Distributions and other amounts due on the New Capital
Securities (to the extent the Trust has funds on hand legally available for the
payment of such Distributions) will be irrevocably guaranteed by the Corporation
as and to the extent set forth under "Description of New Securities --
Description of New Guarantee." Taken together, the Corporation's obligations
under the New Junior Subordinated Debentures, the Indenture, the Declaration and
the New Guarantee will provide, in the aggregate, a full, irrevocable and
unconditional guarantee of payments of Distributions and other amounts due on
the New Capital Securities. No single document standing alone or operating in
conjunction with fewer than all of the other documents constitutes such
guarantee. It is only the combined operation of these documents that has the
effect of providing a full, irrevocable and unconditional guarantee of the
Trust's obligations under the New Capital Securities. If and to the extent that
the Corporation does not make the required payments on the New Junior
Subordinated Debentures, the Trust will not have sufficient funds to make the
related payments, including Distributions, on the New Capital Securities. The
New Guarantee will not cover any such payment when the Trust does not have
sufficient funds on hand legally available therefor. In such event, the remedy
of a holder of New Capital Securities is to institute a Direct Action. The
obligations of the Corporation under the New Guarantee will be subordinate and
junior in right of payment to all Senior Indebtedness.
 
                                       53
<PAGE>   55
 
SUFFICIENCY OF PAYMENTS
 
     As long as payments of interest and other payments are made when due on the
New Junior Subordinated Debentures, such payments will be sufficient to cover
Distributions and other payments due on the New Capital Securities, primarily
because: (i) the aggregate principal amount or Prepayment Price of the New
Junior Subordinated Debentures will be equal to the sum of the Liquidation
Amount or Redemption Price, as applicable, of the New Capital Securities and
related Common Securities, (ii) the interest rate and interest and other payment
dates on the New Junior Subordinated Debentures will match the Distribution rate
and Distribution and other payment dates for the Trust Securities; (iii) the
Corporation shall pay for all and any costs, expenses and liabilities of the
Trust except the Trust's obligations to holders of Trust Securities under such
Trust Securities; and (iv) the Declaration provides that the Trust is not
authorized to engage in any activity that is not consistent with the limited
purposes thereof.
 
ENFORCEMENT RIGHTS OF HOLDERS OF NEW CAPITAL SECURITIES
 
     A holder of any New Capital Security may institute a legal proceeding
directly against the Corporation to enforce its rights under the New Guarantee
without first instituting a legal proceeding against the Guarantee Trustee, the
Trust or any other person or entity.
 
     A default or event of default under any Senior Indebtedness would not
constitute a default or Event of Default under the Declaration. However, in the
event of payment defaults under, or acceleration of, Senior Indebtedness, the
subordination provisions of the Indenture provide that no payments may be made
in respect of the New Junior Subordinated Debentures until such Senior
Indebtedness has been paid in full or any payment default thereunder has been
cured or waived. Failure to make required payments on Junior Subordinated
Debentures would constitute an Event of Default under the Declaration.
 
LIMITED PURPOSE OF THE TRUST
 
     The New Capital Securities will represent preferred beneficial interests in
the Trust, and the Trust exists for the sole purpose of issuing and selling the
Trust Securities, using the proceeds from the sale of the Trust Securities to
acquire the Junior Subordinated Debentures and engaging in only those other
activities necessary, advisable or incidental thereto.
 
RIGHTS UPON TERMINATION
 
   
     Unless the Junior Subordinated Debentures are distributed to holders of the
Trust Securities, upon any voluntary or involuntary termination and liquidation
of the Trust, after satisfaction of liabilities to creditors of the Trust as
provided by applicable law, the holders of the Trust Securities will be entitled
to receive, out of assets held by the Trust, the Liquidation Distribution in
cash. See "Description of New Securities -- Description of New Capital
Securities -- Liquidation of the Trust and Distribution of New Junior
Subordinated Debentures." Upon any voluntary or involuntary liquidation or
bankruptcy of the Corporation, the Property Trustee, as holder of the New Junior
Subordinated Debentures, would be a subordinated creditor of the Corporation,
subordinated in right of payment to all Senior Indebtedness as set forth in the
Indenture, but entitled to receive payment in full of principal (and premium, if
any) and interest, before any stockholders of the Corporation receive payments
or distributions. Since the Corporation will be the guarantor under the New
Guarantee and will agree to pay for all costs, expenses and liabilities of the
Trust (other than the Trust's obligations to the holders of its Trust
Securities), the positions of a holder of New Capital Securities and a holder of
New Junior Subordinated Debentures relative to stockholders of the Corporation
in the event of liquidation or bankruptcy of the Corporation are expected to be
substantially the same.
    
 
                                       54
<PAGE>   56
 
            CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS
 
GENERAL
 
     In the opinion of Brown & Wood LLP, counsel to the Corporation and the
Trust ("Tax Counsel"), the following is a summary of certain of the material
United States federal income tax consequences of the purchase, ownership and
disposition of Capital Securities held as capital assets by a holder. This
summary only addresses the tax consequences to a holder that acquired the Old
Capital Securities upon initial issuance at their original offering price. It
does not deal with special classes of holders such as banks, thrifts, real
estate investment trusts, regulated investment companies, insurance companies,
dealers in securities or currencies, tax-exempt investors, or persons that will
hold the Capital Securities as a position in a "straddle," as part of a
"synthetic security" or "hedge," as part of a "conversion transaction" or other
integrated investment, or as other than a capital asset. This summary also does
not address the tax consequences to persons that have a functional currency
other than the U.S. dollar or the tax consequences to stockholders, partners or
beneficiaries of a holder of Capital Securities. Further, it does not include
any description of any alternative minimum tax consequences or the tax laws of
any state or local government or of any foreign government that may be
applicable to the Capital Securities. This summary is based on the Internal
Revenue Code of 1986, as amended (the "Code"), Treasury regulations thereunder,
and the administrative and judicial interpretations thereof, as of the date
hereof, all of which are subject to change, possibly on a retroactive basis.
 
EXCHANGE OF CAPITAL SECURITIES
 
     The exchange of Old Capital Securities for New Capital Securities will not
be a taxable event to holders for United States federal income tax purposes. The
exchange of Old Capital Securities for New Capital Securities pursuant to the
Exchange Offer will not be treated as an "exchange" for United States federal
income tax purposes because the New Capital Securities should not be considered
to differ materially in kind or extent from the Old Capital Securities and
because the exchange will occur by operation of the terms of the Old Capital
Securities. If, however, the exchange of the Old Capital Securities for the New
Capital Securities were treated as an exchange for United States federal income
tax purposes, such exchange would constitute a recapitalization for federal
income tax purposes. Accordingly, the New Capital Securities will have the same
issue price as the Old Capital Securities, and a holder will have the same
adjusted tax basis and holding period in the New Capital Securities as the
holder had in the Old Capital Securities immediately before the exchange.
 
CLASSIFICATION OF THE JUNIOR SUBORDINATED DEBENTURES
 
     In connection with the issuance of the Old Junior Subordinated Debentures,
Tax Counsel has rendered its opinion generally to the effect that, under then
current law and assuming full compliance with the terms of the Indenture (and
certain other documents), and based on certain facts and assumptions contained
in such opinion, the Old Junior Subordinated Debentures will be classified for
United States federal income tax purposes as indebtedness of the Corporation. An
opinion of Tax Counsel, however, is not binding on the Internal Revenue Service
(the "IRS") or the courts. Prospective investors should note that no rulings
have been or are expected to be sought from the IRS with respect to any of these
issues and no assurance can be given that the IRS will not take contrary
positions. Moreover, no assurance can be given that any of the opinions
expressed herein will not be challenged by the IRS or, if challenged, that such
a challenge would not be successful.
 
CLASSIFICATION OF THE TRUST
 
     In connection with the issuance of the Old Capital Securities, Tax Counsel
has rendered its opinion generally to the effect that, under then current law
and assuming full compliance with the terms of the Declaration and the Indenture
(and certain other documents), and based on certain facts and assumptions
contained in such opinion, the Trust will be classified for United States
federal income tax purposes as a grantor trust and not as an association taxable
as a corporation. Accordingly, for United States federal income tax purposes,
each holder of Capital Securities generally will be considered the owner of an
undivided interest
 
                                       55
<PAGE>   57
 
in the Junior Subordinated Debentures, and each holder will be required to
include in its gross income any interest (or OID accrued) with respect to its
allocable share of those Junior Subordinated Debentures.
 
INTEREST INCOME AND ORIGINAL ISSUE DISCOUNT
 
     Under recently issued Treasury regulations (the "Regulations") applicable
to debt instruments issued on or after August 13, 1996, a "remote" contingency
that stated interest will not be timely paid will be ignored in determining
whether a debt instrument is issued with OID. The Corporation believes that the
likelihood of its exercising its option to defer payments of interest is
"remote" since exercising that option would prevent the Corporation from
declaring dividends on any class of its equity securities. Accordingly, the
Corporation intends to take the position, based on the advice of Tax Counsel,
that the Junior Subordinated Debentures will not be considered to be issued with
OID and, accordingly, stated interest on the Junior Subordinated Debentures
generally will be taxable to a holder as ordinary income at the time it is paid
or accrued in accordance with such holder's method of accounting.
 
     Under the Regulations, if the Corporation were to exercise its option to
defer payments of interest, the Junior Subordinated Debentures would at that
time be treated as issued with OID, and all stated interest on the Junior
Subordinated Debentures would thereafter be treated as OID as long as the Junior
Subordinated Debentures remain outstanding. In such event, all of a holder's
taxable interest income with respect to the Junior Subordinated Debentures would
thereafter be accounted for on an economic accrual basis regardless of such
holder's method of tax accounting, and actual distributions of stated interest
would not be reported as taxable income. Consequently, a holder of Capital
Securities would be required to include in gross income OID even though the
Corporation would not make actual cash payments during an Extension Period.
Moreover, under the Regulations, if the option to defer the payment of interest
was determined not to be "remote", the Junior Subordinated Debentures would be
treated as having been originally issued with OID. In such event, all of a
holder's taxable interest income with respect to the Junior Subordinated
Debentures would be accounted for on an economic accrual basis regardless of
such holder's method of tax accounting, and actual distributions of stated
interest would not be reported as taxable income.
 
     The Regulations have not yet been addressed in any rulings or other
interpretations by the IRS, and it is possible that the IRS could take a
position contrary to Tax Counsel's interpretation herein.
 
     Because income on the Capital Securities will constitute interest or OID,
corporate holders of the Capital Securities will not be entitled to a
dividends-received deduction with respect to any income recognized with respect
to the Capital Securities.
 
RECEIPT OF JUNIOR SUBORDINATED DEBENTURES OR CASH UPON LIQUIDATION OF THE TRUST
 
     The Corporation will have the right at any time to liquidate the Trust and
cause the Junior Subordinated Debentures to be distributed to the holders of the
Trust Securities. Under current law, such a distribution, for United States
federal income tax purposes, would be treated as a nontaxable event to each
holder, and each holder would receive an aggregate tax basis in the Junior
Subordinated Debentures equal to such holder's aggregate tax basis in its
Capital Securities. A holder's holding period in the Junior Subordinated
Debentures so received in liquidation of the Trust would include the period
during which the Capital Securities were held by such holder. If, however, the
Trust is characterized for United States federal income tax purposes as an
association taxable as a corporation at the time of its dissolution, the
distribution of the Junior Subordinated Debentures may constitute a taxable
event to holders of Capital Securities and a holder's holding period in Junior
Subordinated Debentures would begin on the date such Junior Subordinated
Debentures were received.
 
     Under certain circumstances described herein (see "Description of New
Securities -- Description of New Capital Securities"), the Junior Subordinated
Debentures may be redeemed for cash and the proceeds of such redemption
distributed to holders in redemption of their Capital Securities. Under current
law, such a redemption would, for United States federal income tax purposes,
constitute a taxable disposition of the redeemed Capital Securities, and a
holder could recognize gain or loss as if it sold such redeemed Capital
Securities for cash. See "-- Sales of Capital Securities."
 
                                       56
<PAGE>   58
 
SALES OF CAPITAL SECURITIES
 
     A holder that sells Capital Securities (including a redemption of the
Capital Securities either on the Stated Maturity Date or upon an optional
redemption of the Junior Subordinated Debentures by the Corporation) will
recognize gain or loss equal to the difference between its adjusted tax basis in
the Capital Securities and the amount realized on the sale of such Capital
Securities (other than with respect to accrued and unpaid interest which has not
yet been included in income, which will be treated as ordinary income). A
holder's adjusted tax basis in the Capital Securities generally will be its
initial purchase price increased by OID (if any) previously includible in such
holder's gross income to the date of disposition and decreased by payments (if
any) received on the Capital Securities in respect of OID. Such gain or loss
generally will be a capital gain or loss and generally will be a long-term
capital gain or loss if the Capital Securities have been held for more than one
year.
 
     The Capital Securities may trade at a price that does not accurately
reflect the value of accrued but unpaid interest with respect to the underlying
Junior Subordinated Debentures. A holder who uses the accrual method of
accounting for tax purposes (and a cash method holder, if the Junior
Subordinated Debentures are deemed to have been issued with OID) who disposes of
such holder's Capital Securities between record dates for payments of
distributions thereon will be required to include accrued but unpaid interest on
the Junior Subordinated Debentures through the date of disposition in income as
ordinary income (i.e., interest or, possibly, OID), and to add such amount to
his adjusted tax basis in his pro rata share of the underlying Junior
Subordinated Debentures deemed disposed of. To the extent the selling price is
less than the holder's adjusted tax basis (which will include all accrued but
unpaid interest) a holder will recognize a capital loss. Subject to certain
limited exceptions, capital losses cannot be applied to offset ordinary income
for United States federal income tax purposes.
 
PROPOSED TAX LEGISLATION
 
     On February 6, 1997, as part of President Clinton's Fiscal 1998 Budget
Proposal, the United States Treasury Department proposed legislation that would,
among other things, deny an issuer a deduction for United States federal income
tax purposes for the payment of interest on instruments with characteristics
similar to the Junior Subordinated Debentures. If the proposed legislation were
enacted in its current form, it is not expected to apply to the Junior
Subordinated Debentures since the proposed effective date for this provision is
the date of first committee action. There can be no assurances, however, that
the proposed legislation, if enacted, or similar legislation enacted after the
date hereof would not adversely affect the tax treatment of the Junior
Subordinated Debentures, resulting in a Tax Event. The occurrence of a Tax Event
may result in the redemption of the Junior Subordinated Debentures for cash, in
which event the holders of the Capital Securities would receive cash in
redemption of their Capital Securities. The occurrence of a Tax Event may result
in the redemption of the Junior Subordinated Debentures for cash, in which event
the holders of the Capital Securities would receive cash in redemption of their
Capital Securities. See "Description of New Securities -- Description of New
Capital Securities -- Redemption" and "Description of Junior Subordinated
Debentures -- Special Event Prepayment."
 
UNITED STATES ALIEN HOLDERS
 
     For purposes of this discussion, a "United States Alien Holder" is any
corporation, individual, partnership, estate or trust that is not a U.S. Holder
for United States federal income tax purposes.
 
     A "U.S. Holder" is a holder of Capital Securities who or which is a citizen
or individual resident (or is treated as a citizen or individual resident) of
the United States for federal income tax purposes, a corporation or partnership
created or organized (or treated as created or organized for federal income tax
purposes) in or under the laws of the United States or any political subdivision
thereof, or a trust or estate the income of which is includible in its gross
income for federal income tax purposes without regard to its source.
Notwithstanding the foregoing, for taxable years beginning after December 31,
1996 (or for the immediately preceding taxable year, if the trustee of a trust
so elects), a trust is a U.S. Holder for federal income tax purposes if, and
only if, (i) a court within the United States is able to exercise primary
supervision over the
 
                                       57
<PAGE>   59
 
administration of the trust and (ii) one or more United States trustees have the
authority to control all substantial decisions of the trust.)
 
     Under present United States federal income tax laws: (i) payments by the
Trust or any of its paying agents to any holder of a Capital Security who or
which is a United States Alien Holder will not be subject to United States
federal withholding tax; provided that, (a) the beneficial owner of the Capital
Security does not actually or constructively own 10 percent or more of the total
combined voting power of all classes of stock of the Corporation entitled to
vote, (b) the beneficial owner of the Capital Security is not a controlled
foreign corporation that is related to the Corporation through stock ownership,
and (c) either (A) the beneficial owner of the Capital Security certifies to the
Trust or its agent, under penalties of perjury, that it is not a United States
holder and provides its name and address or (B) a securities clearing
organization, bank or other financial institution that holds customers'
securities in the ordinary course of its trade or business (a "Financial
Institution"), and holds the Capital Security in such capacity, certifies to the
Trust or its agent, under penalties of perjury, that such statement has been
received from the beneficial owner by it or by a Financial Institution between
it and the beneficial owner and furnishes the Trust or its agent with a copy
thereof; and (ii) a United States Alien Holder of a Capital Security will not be
subject to United States federal withholding tax on any gain realized upon the
sale or other disposition of a Capital Security.
 
     As discussed above, changes in legislation affecting the United States
federal income tax treatment of the Junior Subordinated Debentures are possible,
and could adversely affect the ability of the Corporation to deduct the interest
payable on the Junior Subordinated Debentures. Moreover, any such legislation
could, as the Proposed Legislation would have, adversely affect United States
Alien Holders by characterizing income derived from the Junior Subordinated
Debentures as dividends, generally subject to a 30% income tax (on a withholding
basis) when paid to a United States Alien Holder, rather than as interest which,
as discussed above, is generally exempt from income tax in the hands of a United
States Alien Holder.
 
     A United States Alien Holder that holds Capital Securities in connection
with the active conduct of a United States trade or business will be subject to
income tax on all income and gains recognized with respect to its proportionate
share of the Junior Subordinated Debentures.
 
INFORMATION REPORTING TO HOLDERS
 
     Generally, income on the Capital Securities will be reported to holders on
Forms 1099, which forms should be mailed to holders of Capital Securities by
January 31 following each calendar year.
 
BACKUP WITHHOLDING
 
     Payments made on, and proceeds from the sale of, the Capital Securities may
be subject to a "backup" withholding tax of 31 percent unless the holder
complies with certain identification requirements. Any withheld amounts will be
allowed as a credit against the holder's United States federal income tax,
provided the required information is provided to the IRS.
 
     THE UNITED STATES FEDERAL INCOME TAX DISCUSSION SET FORTH ABOVE IS INCLUDED
FOR GENERAL INFORMATION ONLY AND MAY NOT BE APPLICABLE DEPENDING UPON A HOLDER'S
PARTICULAR SITUATION. HOLDERS SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO
THE TAX CONSEQUENCES TO THEM OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF THE
CAPITAL SECURITIES, INCLUDING THE TAX CONSEQUENCES UNDER STATE, LOCAL, FOREIGN
AND OTHER TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES IN UNITED STATES FEDERAL
OR OTHER TAX LAWS.
 
                              ERISA CONSIDERATIONS
 
     The Corporation, the obligor with respect to the New Junior Subordinated
Debentures held by the Trust, and its affiliates and the Property Trustee may be
considered a "party in interest" (within the meaning of the Employee Retirement
Income Security Act of 1974, as amended ("ERISA")) or a "disqualified person"
 
                                       58
<PAGE>   60
 
(within the meaning of Section 4975 of the Code) with respect to many employee
benefit plans ("Plans") that are subject to ERISA. Any purchaser proposing to
acquire New Capital Securities with assets of any Plan should consult with its
counsel. The purchase and/or holding of New Capital Securities by a Plan that is
subject to the fiduciary responsibility provisions of ERISA or the prohibited
transaction provisions of Section 4975 of the Code (including individual
retirement arrangements and other plans described in Section 4975(e)(1) of the
Code) and with respect to which the Corporation, the Property Trustee or any
affiliate is a service provider (or otherwise is a party in interest or a
disqualified person) may constitute or result in a prohibited transaction under
ERISA or Section 4975 of the Code, unless such New Capital Securities are
acquired pursuant to and in accordance with an applicable exemption, such as
Prohibited Transaction Class Exemption ("PTCE") 84-14 (an exemption for certain
transactions determined by an independent qualified professional asset manager),
PTCE 91-38 (an exemption for certain transactions involving bank collective
investment funds), PTCE 90-1 (an exemption for certain transactions involving
insurance company pooled separate accounts), PTCE 95-60 (an exemption for
transactions involving certain insurance company general accounts) or PTCE 95-23
(an exemption for certain transactions determined by an in-house asset manager).
In addition, as described below, a Plan fiduciary considering the acquisition of
New Capital Securities should be aware that the assets of the Trust may be
considered "plan assets" for ERISA purposes. Therefore, a Plan fiduciary should
consider whether the acquisition of Capital Securities could result in a
delegation of fiduciary authority to the Property Trustee, and, if so, whether
such a delegation of authority is permissible under the Plan's governing
instrument or any investment management agreement with the Plan. In making such
determination, a Plan fiduciary should note that the Property Trustee is a U.S.
bank qualified to be an investment manager (within the meaning of section 3(38)
of ERISA) to which such a delegation of authority generally would be permissible
under ERISA. Further, prior to an Event of Default with respect to the New
Junior Subordinated Debentures, the Property Trustee will have only limited
custodial and ministerial authority with respect to Trust assets.
 
     Under the U.S. Department of Labor regulations defining "plan assets" for
ERISA purposes (the "Plan Assets Regulations"), the assets of the Trust will be
considered plan assets of Plans owning New Capital Securities unless the
aggregate investment in New Capital Securities by "benefit plan investors" is
not deemed "significant" or the New Capital Securities qualify as "publicly
offered securities" as defined in such Regulations. For this purpose, equity
participation by benefit plan investors will not be considered "significant" on
any date only if, immediately after the most recent acquisition of Capital
Securities, the aggregate interest in the New Capital Securities held by benefit
plan investors will be less than 25% of the value of the New Capital Securities.
Although it is possible that the equity participation by benefit plan investors
in New Capital Securities on any date will not be "significant" for purposes of
the Plan Assets Regulations, such result cannot be assured.
 
     The New Capital Securities may qualify as "publicly offered securities"
under the Plan Assets Regulations if at the time of the Exchange Offer they are
also "widely held" and "freely transferable." Under the Regulations, a class of
securities is "widely held" only if it is a class of securities that is owned by
100 or more investors independent of the issuer and of one another. Although it
is possible that at the time of the Exchange Offer the New Capital Securities
will be "widely held," such result cannot be assured. Whether a security is
"freely transferable" for purposes of the Regulations is a factual question to
be determined on the basis of all relevant facts and circumstances. If at the
time of the Exchange Offer the New Capital Securities qualify as "publicly
offered securities," the assets of the Trust should not be "plan assets" with
respect to Plans acquiring New Capital Securities. If at the time of the
Exchange Offer the New Capital Securities do not qualify as "publicly offered
securities," the "plan asset" considerations discussed in the preceding
paragraphs could be applicable in connection with the investment by Plans in the
New Capital Securities.
 
                              PLAN OF DISTRIBUTION
 
     Each broker-dealer that receives New Capital Securities for its own account
in connection with the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such New Capital Securities. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by Participating Broker-Dealers during the period referred to below in
connection with resales of New Capital
 
                                       59
<PAGE>   61
 
Securities received in exchange for Old Capital Securities if such Old Capital
Securities were acquired by such Participating Broker-Dealers for their own
accounts as a result of market-making activities or other trading activities.
The Corporation and the Trust have agreed that this Prospectus, as it may be
amended or supplemented from time to time, may be used by a Participating
Broker-Dealer in connection with resales of such New Capital Securities for a
period ending 90 days after the Expiration Date (subject to extension under
certain limited circumstances described herein) or, if earlier, when all such
New Capital Securities have been disposed of by such Participating
Broker-Dealer. However, a Participating Broker-Dealer who intends to use this
Prospectus in connection with the resale of New Capital Securities received in
exchange for Old Capital Securities pursuant to the Exchange Offer must notify
the Corporation or the Trust, or cause the Corporation or the Trust to be
notified, on or prior to the Expiration Date, that it is a Participating
Broker-Dealer. Such notice may be given in the space provided for that purpose
in the Letter of Transmittal or may be delivered to the Exchange Agent at one of
the addresses set forth herein under "The Exchange Offer -- Exchange Agent." See
"The Exchange Offer -- Resales of New Capital Securities."
 
     The Corporation or the Trust will not receive any cash proceeds from the
issuance of the New Capital Securities offered hereby. New Capital Securities
received by broker-dealers for their own accounts in connection with the
Exchange Offer may be sold from time to time in one or more transactions in the
over-the-counter market, in negotiated transactions, through the writing of
options on the New Capital Securities or a combination of such methods of
resale, at market prices prevailing at the time of resale, at prices related to
such prevailing market prices or at negotiated prices. Any such resale may be
made directly to purchasers or to or through brokers or dealers who may receive
compensation in the form of commissions or concessions from any such
broker-dealer and/or the purchasers of any such New Capital Securities.
 
     Any broker-dealer that resells New Capital Securities that were received by
it for its own account in connection with the Exchange Offer and any broker or
dealer that participates in a distribution of such New Capital Securities may be
deemed to be an "underwriter" within the meaning of the Securities Act, and any
profit on any such resale of New Capital Securities and any commissions or
concessions received by any such persons may be deemed to be underwriting
compensation under the Securities Act. The Letter of Transmittal states that by
acknowledging that it will deliver and by delivering a prospectus a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.
 
                           VALIDITY OF NEW SECURITIES
 
     The validity of the New Guarantee and the New Junior Subordinated
Debentures will be passed upon for the Corporation by Brown & Wood LLP, New
York, New York. Certain matters relating to United States federal income tax
considerations will be passed upon for the Corporation by Brown & Wood LLP, New
York, New York. Certain matters of Delaware law relating to the validity of the
New Capital Securities will be passed upon on behalf of the Trust by Richards,
Layton & Finger, P.A. special Delaware counsel to the Trust.
 
                                    EXPERTS
 
     The consolidated financial statements of the Corporation appearing in the
Corporation's Annual Report on Form 10-K for the fiscal year ended December 31,
1996, incorporated by reference herein, have been incorporated by reference
herein in reliance upon the report of KPMG Peat Marwick LLP, independent
certified public accountants, and upon the authority of said firm as experts in
accounting and auditing.
 
                                       60
<PAGE>   62
 
                                    PART II
 
                   INFORMATION NOT REQUIRED IN THE PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Pursuant to the Wisconsin Business Corporation Law, directors and officers
of Firstar are entitled to mandatory indemnification from Firstar against
certain liabilities and expenses (i) to the extent such officers or directors
are successful in the defense of a proceeding; and (ii) in proceedings in which
the director or officer is not successful in defense thereof, unless it is
determined that the director or officer breached or failed to perform his or her
duties to Firstar and such breach or failure constituted: (a) a willful failure
to deal fairly with Firstar or its shareholders in connection with a matter in
which the director or officer had a material conflict of interest; (b) a
violation of the criminal law unless the director or officer had reasonable
cause to believe his or her conduct was lawful or had no reasonable cause to
believe his or her conduct was unlawful; (c) a transaction from which the
director or officer derived an improper personal profit; or (d) willful
misconduct. It should be noted that the Wisconsin Business Corporation Law
specifically states that it is the public policy of Wisconsin to require or
permit indemnification in connection with a proceeding involving securities
regulation, as described therein, to the extent required or permitted as
described above. Additionally, under the Wisconsin Business Corporation Law,
directors of Firstar are not subject to personal liability to Firstar, its
shareholders or any person asserting rights on behalf thereof for certain
breaches or failure to perform any duty resulting solely from their status as
directors except in circumstances paralleling those in subparagraphs (a) through
(d) outlined above.
 
     Firstar's By-Laws contain similar indemnification provisions as to
directors and officers of Firstar. In addition, Firstar has entered into
individual indemnity agreements with all of its current directors. The indemnity
agreements are virtually identical in all substantive respects to Firstar's
By-Laws.
 
     Expenses for the defense of any action for which indemnification may be
available may be advanced by Firstar under certain circumstances.
 
     Firstar maintains a liability insurance policy for officers and directors
which extends to, among other things, liability arising under the Securities Act
of 1933, as amended.
 
     In addition, Firstar's Pension Plan and Thrift and Sharing Plan provide for
indemnification of members of the plan committees and directors of Firstar as
follows:
 
     The Company shall indemnify each member of the Plan Committee and the Board
and hold each of them harmless from the consequences of his acts or conduct in
his official capacity, if he acted in good faith and in a manner he reasonably
believed to be solely in the best interests of the Participants and their
Beneficiaries, and with respect to any criminal action or proceeding had no
reasonable cause to believe his conduct was unlawful. Such indemnification shall
cover any and all attorneys' fees and expenses, judgments, fines and amounts
paid in settlement, but only to the extent such amounts are not paid to such
person(s) under the Company's fiduciary insurance policy and to the extent that
such amounts are actually and reasonably incurred by such person(s).
 
                                      II-1
<PAGE>   63
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
   
<TABLE>
<CAPTION>
EXHIBIT
- -------
<C>       <S>
  4.1     Indenture of Firstar Corporation relating to the Junior
          Subordinated Debentures*
  4.2     Form of Certificate of New Junior Subordinated Debenture
          (included as Exhibit A to Exhibit 4.1)*
  4.3     Certificate of Trust of Firstar Capital Trust I*
  4.4     Declaration of Trust of Firstar Capital Trust I*
  4.5     Amended and Restated Declaration of Trust for Firstar
          Capital Trust I*
  4.6     Form of New Capital Security Certificate for Firstar Capital
          Trust I (included as Exhibit A-1 to Exhibit 4.5)*
  4.7     Form of New Guarantee of Firstar Corporation relating to the
          New Capital Securities*
  4.8     Registration Rights Agreement*
  5.1     Opinion and consent of Brown & Wood LLP to Firstar
          Corporation as to legality of the New Junior Subordinated
          Debentures and the New Guarantee to be issued by Firstar
          Corporation
  5.2     Opinion of Richards, Layton and Finger, P.A., special
          Delaware counsel, as to legality of the New Capital
          Securities to be issued by Firstar Capital Trust I
  8       Opinion of Brown & Wood LLP, special tax counsel, as to
          certain federal income tax matters
 12       Computation of ratio of earnings to fixed charges
 23.1     Consent of KPMG Peat Marwick LLP
 23.2     Consent of Brown & Wood LLP (included in Exhibit 5.1)
 23.3     Consent of Richards, Layton & Finger, P.A. (included in
          Exhibit 5.2)
 24       Power of Attorney of certain officers and directors of
          Firstar Corporation*
 25.1     Form T-1 Statement of Eligibility of The Chase Manhattan
          Bank to act as trustee under the Indenture*
 25.2     Form T-1 Statement of Eligibility of The Chase Manhattan
          Bank to act as trustee under the Amended and Restated
          Declaration of Trust of Firstar Capital Trust I*
 25.3     Form T-1 Statement of Eligibility of The Chase Manhattan
          Bank to act as Trustee under the New Guarantee for the
          benefit of the holders of New Capital Securities of Firstar
          Capital Trust I*
 99.1     Form of Letter of Transmittal
 99.2     Form of Notice of Guaranteed Delivery
 99.3     Form of Exchange Agent Agreement
</TABLE>
    
 
- -------------------------
   
* Previously filed.
    
 
ITEM 22. UNDERTAKINGS
 
     (a) The undersigned Registrant hereby 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 section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
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.
 
     (b) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that, in the opinion of the Securities and Exchange
Commission, such indemnification is against the public policy as expressed in
the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against liabilities (other than the payment by the Registrant of
expenses
 
                                      II-2
<PAGE>   64
 
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.
 
     (c) The undersigned Registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities Act
     of 1933, the information omitted from the form of prospectus filed as part
     of this registration statement in reliance upon Rule 430A and contained in
     a form of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or
     (4) or 497(h) under the Securities Act shall be deemed to be part of this
     registration statement as of the time it was declared effective.
 
          (2) For the purpose of determining any liability under the Securities
     Act of 1933, each post-effective amendment that contains a form of
     prospectus 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.
 
                                      II-3
<PAGE>   65
 
                                   SIGNATURES
 
   
     Pursuant to the requirement of the Securities Act of 1933, Firstar
Corporation certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-4 and has duly caused this
Amendment No. 1 to the Registration Statement (File Nos. 333-23277 and
333-23277-01) to be signed on its behalf by the Undersigned, thereunto duly
authorized, in the City of Milwaukee, State of Wisconsin, on April 4, 1997.
    
 
                                          FIRSTAR CORPORATION
 
                                          By:    /s/ ROGER L. FITZSIMONDS
 
                                            ------------------------------------
                                                    Roger L. Fitzsimonds
                                                 Chairman of the Board and
                                                  Chief Executive Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.
 
   
<TABLE>
<CAPTION>
              SIGNATURES                                    TITLE                          DATE
              ----------                                    -----                          ----
<C>                                      <S>                                          <C>
 
       /s/ ROGER L. FITZSIMONDS*         Chairman of the Board, Chief Executive       April 4, 1997
- ---------------------------------------  Officer and Director (principal executive
         Roger L. Fitzsimonds            officer)
 
          /s/ JOHN A. BECKER*            President and Director                       April 4, 1997
- ---------------------------------------
            John A. Becker
 
        /s/ JEFFREY B. WEEDEN*           Senior Vice President -- Finance             April 4, 1997
- ---------------------------------------  Treasurer (principal accounting and
           Jeffrey B. Weeden             financial officer)
 
        /s/ MICHAEL E. BATTEN*           Director                                     April 4, 1997
- ---------------------------------------
           Michael E. Batten
 
                                         Director
- ---------------------------------------
          Robert C. Buchanan
 
      /s/ GEORGE M. CHESTER, JR.*        Director                                     April 4, 1997
- ---------------------------------------
        George M. Chester, Jr.
 
                                         Director
- ---------------------------------------
           Roger H. Derusha
 
         /s/ JAMES L. FORBES*            Director                                     April 4, 1997
- ---------------------------------------
            James L. Forbes
 
          /s/ HOLMES FOSTER*             Director                                     April 4, 1997
- ---------------------------------------
             Holmes Foster
 
         /s/ JERRY M. HEIGEL*            Director                                     April 4, 1997
- ---------------------------------------
            Jerry M. Heigel
</TABLE>
    
 
                                      II-4
<PAGE>   66
 
   
<TABLE>
<C>                                      <S>                                                     <C>
            /s/ JOE HLADKY*              Director                                                April 4, 1997
- ---------------------------------------
              Joe Hladky
 
         /s/ C. PAUL JOHNSON*            Director                                                April 4, 1997
- ---------------------------------------
            C. Paul Johnson
 
          /s/ JAMES H. KEYES*            Director                                                April 4, 1997
- ---------------------------------------
            James H. Keyes
 
         /s/ SHELDON B. LUBAR*           Director                                                April 4, 1997
- ---------------------------------------
           Sheldon B. Lubar
 
     /s/ DANIEL F. MCKEITHAN, JR.*       Director                                                April 4, 1997
- ---------------------------------------
       Daniel F. McKeithan, Jr.
                                         Director
- ---------------------------------------
           George W. Mead II
 
          /s/ GUY A. OSBORN*             Director                                                April 4, 1997
- ---------------------------------------
             Guy A. Osborn
 
                                         Director
- ---------------------------------------
            Judith D. Pyle
 
                                         Director
- ---------------------------------------
        Clifford V. Smith, Jr.
 
                                         Director
- ---------------------------------------
           William W. Wirtz
</TABLE>
    
 
                                          By:      /s/ WILLIAM J. SCHULZ
 
                                            ------------------------------------
                                                      Attorney-in-Fact
- -------------------------
* Pursuant to authority granted by power of attorney filed with the Registration
Statement
 
                                      II-5
<PAGE>   67
 
   
     Pursuant to the requirements of the Securities Act of 1933, Firstar Capital
Trust I certifies that it has reasonable grounds to believe that it meets all
the requirements for filing on Form S-4 and has duly caused this Amendment No. 1
to the Registration Statement (File Nos. 333-23277 and 333-23277-01) to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Milwaukee, and State of Wisconsin, on the 4th day of April, 1997.
    
 
                                          FIRSTAR CAPITAL TRUST I
 
                                          By:      /s/ HOWARD H. HOPWOOD
 
                                            ------------------------------------
                                                     Howard H. Hopwood,
                                                 as Administrative Trustee
 
                                          By:      /s/ WILLIAM J. SCHULZ
 
                                            ------------------------------------
                                                     William J. Schulz,
                                                 as Administrative Trustee
 
                                          By:      /s/ JEFFREY B. WEEDEN
 
                                            ------------------------------------
                                                     Jeffrey B. Weeden,
                                                 as Administrative Trustee
 
                                      II-6
<PAGE>   68
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT NO.                           DESCRIPTION                           PAGE
- -----------                           -----------                           ----
<C>           <S>                                                           <C>
    4.1       Indenture of Firstar Corporation relating to the Junior
              Subordinated Debentures*....................................
    4.2       Form of Certificate of New Junior Subordinated Debenture
              (included as Exhibit A to Exhibit 4.1)*.....................
    4.3       Certificate of Trust of Firstar Capital Trust I*............
    4.4       Declaration of Trust of Firstar Capital Trust I*............
    4.5       Amended and Restated Declaration of Trust for Firstar
              Capital Trust I*............................................
    4.6       Form of New Capital Security Certificate for Firstar Capital
              Trust I (included as Exhibit A-1 to Exhibit 4.5)*...........
    4.7       Form of New Guarantee of Firstar Corporation relating to the
              New Capital Securities*.....................................
    4.8       Registration Rights Agreement*..............................
    5.1       Opinion and consent of Brown & Wood LLP to Firstar
              Corporation as to legality of the New Junior Subordinated
              Debentures and the New Guarantee to be issued by Firstar
              Corporation.................................................
    5.2       Opinion of Richards, Layton & Finger, P.A., special Delaware
              counsel, as to legality of the New Capital Securities to be
              issued by Firstar Capital Trust I...........................
    8         Opinion of Brown & Wood LLP, special tax counsel, as to
              certain federal income tax matters..........................
   12         Computation of ratio of earnings to fixed charges...........
   23.1       Consent of KPMG Peat Marwick LLP............................
   23.2       Consent of Brown & Wood LLP (included in Exhibit 5.1).......
   23.3       Consent of Richards, Layton & Finger, P.A. (included in
              Exhibit 5.2)................................................
   24         Power of Attorney of certain officers and directors of
              Firstar Corporation*........................................
   25.1       Form T-1 Statement of Eligibility of The Chase Manhattan
              Bank to act as trustee under the Indenture*.................
   25.2       Form T-1 Statement of Eligibility of The Chase Manhattan
              Bank to act as trustee under the Amended and Restated
              Declaration of Trust of Firstar Capital Trust I*............
   25.3       Form T-1 Statement of Eligibility of The Chase Manhattan
              Bank under the New Guarantee for the benefit of the holders
              of New Capital Securities of Firstar Capital Trust I*.......
   99.1       Form of Letter of Transmittal...............................
   99.2       Form of Notice of Guaranteed Delivery.......................
   99.3       Form of Exchange Agent Agreement............................
</TABLE>
    
 
- -------------------------
   
* Previously filed.
    
 
                                      II-7

<PAGE>   1




                                                                     EXHIBIT 5.1



                                                                   April 4, 1997



Firstar Corporation
777 East Wisconsin Avenue
Milwaukee, Wisconsin 53201


                 Re:      Firstar Corporation
                          Firstar Capital Trust I
                          Registration Statement on Form S-4
                          File No. 333-23277 and 333-23277-01

Ladies and Gentlemen:


                 We have acted as counsel to Firstar Corporation, a Wisconsin
corporation (the "Corporation") and Sponsor of Firstar Capital Trust I, a
Delaware statutory business trust (the "Trust"), in connection with a
Registration Statement on Form S-4 (the "Registration Statement") relating to:
(i) the proposed issuance by the Trust of $150,000,000 aggregate Liquidation
Amount of the Trust's 8.32% Series B Capital Securities (the "New Capital
Securities") registered under the Securities Act of 1933, as amended (the
"Securities Act"), in exchange for up to 150,000,000 aggregate Liquidation
Amount of the Trust's outstanding 8.32% Series A Capital Securities (the "Old
Capital Securities"); (ii) the proposed issuance by the Corporation to the
Trust, in an aggregate principal amount corresponding to the aggregate
Liquidation Amount of the New Capital Securities, of the Corporation's 8.32%
Series B Junior Subordinated Deferrable Interest Debentures due December 15,
2026 (the "New Junior Subordinated Debentures") registered under the Securities
Act in exchange for a comparable aggregate principal amount of the Company's
outstanding 8.32% Series A Junior Subordinated Deferrable Interest Debentures
due December 15, 2026 (the "Old Junior Subordinated Debentures"); and (iii) the
Corporation's guarantee of the New Capital Securities (the "New Guarantee")
registered under the Securities Act in exchange for the Corporation's guarantee
of the Old Capital Securities (the "Old
<PAGE>   2

Guarantee").  The New Capital Securities will be issued under an Amended and
Restated Declaration of Trust for the Trust, dated December 23, 1996 (the
"Amended Declaration"), among the Corporation, as Sponsor, The Chase Manhattan
Bank, as property trustee, Chase Manhattan Bank Delaware, as Delaware trustee,
and the Administrative Trustees named therein, while the New Junior
Subordinated Debentures will be issued under an Indenture, dated as of December
23, 1996 (the "Indenture"), between the Corporation and The Chase Manhattan
Bank, as debenture trustee.

        We have examined such documents and records as we deemed appropriate,
including the following:

              (i)         Copy of the Restated Articles of Incorporation of the
         Corporation, certified as of a recent date by the Secretary of the
         Department of Financial Institutions of the State of Wisconsin.

             (ii)         Copy of the By-Laws of the Corporation, as amended,
         certified by the Secretary of the Corporation to be a true and
         complete copy;

            (iii)         Copies, certified by the Secretary of the Corporation
         to be true copies, of resolutions of the Board of Directors of the
         Corporation adopted on [December 17], 1996, authorizing the filing of
         the Registration Statement and the exchange of the New Capital
         Securities, the New Junior Subordinated Debentures and the New
         Guarantee in the circumstances referred to above.

             (iv)         Executed counterparts of the Amended Declaration.

              (v)         Specimen of the New Capital Security.

             (vi)         Executed counterparts of the Indenture.

            (vii)         Specimen of the New Junior Subordinated Debenture.

           (viii)         Executed counterparts of the New Guarantee.

             (ix)         Executed counterparts of the Registration Rights
         Agreement, dated as of December 23, 1996 (the "Registration Rights
         Agreement"), among the Trust, the Corporation and the Initial
         Purchasers named therein.



                                      2

<PAGE>   3


         In addition, as to questions of fact material to our opinions, we have
relied upon certificates of officers of the Corporation, the Administrative
Trustees of the Trust and public officials.

         In the course of our examination, we have assumed the legal capacity
of all natural persons, the genuineness of all signatures, the authenticity of
all documents submitted to us as originals, the conformity to original
documents of all documents submitted to us as certified or photostatic copies
and the authenticity of the originals of such latter documents.  In making our
examination of documents executed by parties other than the Corporation or the
Trust, we have assumed that such parties had the power, corporate or other, to
enter into and perform all obligations thereunder and have also assumed the due
authorization by all requisite action, corporate or other, and execution and
delivery by such parties of such documents and the validity and binding effect
thereof on such parties.

         Based upon the foregoing, we are of the opinion that:

         (1)     The New Junior Subordinated Debentures have been duly
authorized by all requisite corporate action of the Corporation and, when
executed and authenticated in the manner provided for in the Indenture and
delivered against surrender and cancellation of a like aggregate principal
amount of Old Junior Subordinated Debentures as contemplated in the
Registration Rights Agreement, the New Junior Subordinated Debentures will
constitute valid and binding obligations of the Corporation entitled to the
benefits of the Indenture and enforceable against the Corporation in accordance
with their terms, except as enforcement thereof may be limited by bankruptcy,
insolvency, reorganization, moratorium or other similar laws relating to or
affecting creditors' rights generally or by general equitable principles
(regardless of whether considered in a proceeding in equity or at law).

         (2)     The New Guarantee has been duly authorized by all requisite
corporate action of the Corporation and, when executed and delivered to The
Bank of New York, as guarantee trustee, as contemplated in the Registration
Rights Agreement, the New Guarantee will constitute a valid and binding
agreement of the Corporation, enforceable against the Corporation in accordance
with its terms, except as enforcement thereof may be limited by bankruptcy,
insolvency, reorganization, moratorium or other


                                      3


<PAGE>   4

similar laws relating to or affecting creditors' rights generally or by general
equitable principles (regardless of whether considered in a proceeding in
equity or at law).

         We are members of the Bar of the State of New York and we express no
opinion as to the laws of any jurisdiction other than the laws of the State of
New York and the federal laws of the United States of America and, with respect
to the laws of State of Wisconsin, we have made no independent investigation of
such laws and, with your permission, have relied on all matters governed by
such laws upon the opinion of Howard H. Hopwood, General Counsel of the
Corporation.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm under the caption
"Validity of New Securities" contained in the Prospectus included therein.


                                        Very truly yours,

                                        /s/ Brown & Wood LLP

                                        BROWN & WOOD LLP





                                      4

<PAGE>   1





                                                                     EXHIBIT 5.2


                                        April 4, 1997


Firstar Capital Trust I
c/o Firstar Corporation
777 East Wisconsin Avenue
Milwaukee, Wisconsin  53202

                          Re:  Firstar Capital Trust I

Ladies and Gentlemen:

         We have acted as special Delaware counsel for Firstar Corporation, a
Wisconsin corporation (the "Company"), and Firstar Capital Trust I, a Delaware
business trust (the "Trust"), in connection with the matters set forth herein.
At your request, this opinion is being furnished to you.

         For purposes of giving the opinions hereinafter set forth, our
examination of documents has been limited to the examination of originals or
copies of the following:

         (a)     The Certificate of Trust of the Trust, dated as of December
17, 1996 (the "Certificate"), as filed in the office of the Secretary of State
of the State of Delaware (the "Secretary of State") on December 17, 1996;

         (b)     The Declaration of Trust of the Trust, dated as of December
17, 1996, between Firstar and the trustee of the Trust named therein;

         (c)     The Amended and Restated Declaration of Trust of the Trust,
dated as of December 23, 1996 (including Annex I and Exhibits A-1 and A-2) (the
"Declaration"), among the Company, as sponsor, the trustees of the Trust named
therein and the holders, from time to time, of undivided beneficial interests
in the assets of the Trust;
<PAGE>   2


         (d)     Amendment No. 1 to the Registration Statement on Form S-4 (the
"Registration Statement"), including a preliminary prospectus (the
"Prospectus"), relating to the 8.32% Capital Securities of the Trust
representing undivided beneficial interests in the assets of the Trust (each, a
"Capital Security" and collectively, the "Capital Securities"), as proposed to
be filed by the Company and the Trust with the Securities and Exchange
Commission on or about April 4, 1997; and

         (e)     A Certificate of Good Standing for the Trust, dated April 4,
1997, obtained from the Secretary of State.

         Initially capitalized terms used herein and not otherwise defined are
used as defined in the Declaration.

         For purposes of this opinion, we have not reviewed any documents other
than the documents listed in paragraphs (a) through (e) above.  In particular,
we have not reviewed any document (other than the documents listed in
paragraphs (a) through (e) above) that is referred to in or incorporated by
reference into the documents reviewed by us.  We have assumed that there exists
no provision in any document that we have not reviewed that is inconsistent
with the opinions stated herein.  We have conducted no independent factual
investigation of our own but rather have relied solely upon the foregoing
documents, the statements and information set forth therein and the additional
matters recited or assumed herein, all of which we have assumed to be true,
complete and accurate in all material respects.

         With respect to all documents examined by us, we have assumed (i) the
authenticity of all documents submitted to us as authentic originals, (ii) the
conformity with the originals of all documents submitted to us as copies or
forms, and (iii) the genuineness of all signatures.

         For purposes of this opinion, we have assumed (i) that the Declaration
constitutes the entire agreement among the parties thereto with respect to the
subject matter thereof, including with respect to the creation, operation and
termination of the Trust, and that the Declaration and the Certificate are in
full force and effect and have not been amended, (ii) except to the extent



                                      2

<PAGE>   3

provided in paragraph 1 below, the due creation or due organization or due
formation, as the case may be, and valid existence in good standing of each
party to the documents examined by us under the laws of the jurisdiction
governing its creation, organization or formation, (iii) the legal capacity of
natural persons who are parties to the documents examined by us, (iv) that each
of the parties to the documents examined by us has the power and authority to
execute and deliver, and to perform its obligations under, such documents, (v)
the due authorization, execution and delivery by all parties thereto of all
documents examined by us, (vi) the receipt by each Person to whom a Capital
Security is to be issued by the Trust (collectively, the "Capital Security
Holders") of a Certificate Evidencing Capital Securities (substantially in the
form of Exhibit A-1 to the Declaration) for such Capital Security and the
payment for the Capital Security acquired by it, in accordance with the
Declaration and the Registration Statement, and (vii) that the Capital
Securities are issued and sold to the Capital Security Holders in accordance
with the Declaration and the Registration Statement.  We have not participated
in the preparation of the Registration Statement and assume no responsibility
for its contents.

         This opinion is limited to the laws of the State of Delaware
(excluding the securities laws of the State of Delaware), and we have not
considered and express no opinion on the laws of any other jurisdiction,
including federal laws and rules and regulations relating thereto.  Our
opinions are rendered only with respect to Delaware laws and rules, regulations
and orders thereunder which are currently in effect.

         Based upon the foregoing, and upon our examination of such questions
of law and statutes of the State of Delaware as we have considered necessary or
appropriate, and subject to the assumptions, qualifications, limitations and
exceptions set forth herein, we are of the opinion that:

         1.      The Trust has been duly created and is validly existing in
                 good standing as a business trust under the Business Trust
                 Act.

         2.      The Capital Securities will represent valid and, subject to
the qualifications set forth in paragraph 3 below, fully paid 





                                      3

<PAGE>   4

and nonassessable undivided beneficial interests in the assets of the Trust.    

         3.      The Capital Security Holders, as beneficial owners of the
Trust, will be entitled to the same limitation of personal liability extended
to stockholders of private corporations for profit organized under the General
Corporation Law of the State of Delaware.  We note that the Capital Security
Holders may be obligated to make payments as set forth in the Declaration.

         We consent to the filing of this opinion with the Securities and
Exchange Commission as an exhibit to the Registration Statement.  In addition,
we hereby consent to the use of our name under the heading "Validity of New
Securities" in the Prospectus.  In giving the foregoing consents, we do not
thereby admit that we come within the category of Persons whose consent is
required under Section 7 of the Securities Act of 1933, as amended, or the
rules and regulations of the Securities and Exchange Commission thereunder.
Except as stated above, without our prior written consent, this opinion may not
be furnished or quoted to, or relied upon by, any other Person for any purpose.

                                        Very truly yours,

                                        /s/ Richards, Layton & Finger, P.A.

                                        RICHARDS, LAYTON & FINGER, P.A.




                                      4

<PAGE>   1





                                                                       EXHIBIT 8


                                                                   April 4, 1997


Firstar Corporation
777 East Wisconsin Avenue
Milwaukee, Wisconsin 53201


                 Re:      Firstar Corporation
                          Firstar Capital Trust I
                          Registration Statement on Form S-4
                          File Nos. 333-232777 and 333-23277-01
                                                              


Dear Sirs:

         We have acted as special tax counsel for Firstar Corporation (the
"Corporation") and Firstar Capital Trust I (the "Trust") in connection with the
offer to exchange up to U.S. $150,000,000 of the Trust's 8.32% Series B Capital
Securities which have been registered under the Securities Act of 1933, as
amended, for a like Liquidation Amount of the Trust's outstanding 8.32% Series
A Capital Securities.  In rendering our opinion, we have examined the Amended
and Restated Trust Agreement dated as of December 23, 1996 (the "Trust
Agreement") and have assumed that the Issuer Trustees will conduct the affairs
of the Trust in accordance with the Trust Agreement.  We hereby confirm the
opinions described under the caption "Certain United States Federal Income Tax
Consequences" in the prospectus (the "Prospectus") that is part of the
Registration Statement on Form S-4 filed by the Corporation and the Trust with
the Securities and Exchange Commission on March 10, 1997.  Capitalized terms
used herein but not defined have the meanings as provided in the Prospectus.

         We hereby consent to the use of our name under the caption "Certain
United States Federal Income Tax Consequences" in the Prospectus.  The issuance
of such a consent does not concede that we are an "Expert" for the purposes of
the Securities Act of 1933.
<PAGE>   2


                                                            Very truly yours,

                                                            /s/ Brown & Wood LLP

                                                            BROWN & WOOD LLP

                                      2

<PAGE>   1
 
                                                                      EXHIBIT 12
 
                              FIRSTAR CORPORATION
                       RATIO OF EARNINGS TO FIXED CHARGES
 
   
<TABLE>
<CAPTION>
                                                              YEARS ENDED DECEMBER 31
                                               ------------------------------------------------------
                                                  1996        1995       1994       1993       1992
                                                  ----        ----       ----       ----       ----
                                                               (THOUSANDS OF DOLLARS)
<S>                                            <C>          <C>        <C>        <C>        <C>
EXCLUDING INTEREST ON DEPOSITS
Earnings
  Net income before taxes....................  $  374,547   $347,266   $339,381   $334,493   $268,130
  Interest on debt...........................     167,152    177,133     98,937     52,257     47,882
  Portion of rents representative of interest
    factor...................................      12,219     11,352     11,935     11,883     11,290
                                               ----------   --------   --------   --------   --------
    Total....................................     553,918    535,751    450,253    398,633    327,302
Fixed charges
  Interest on debt...........................  $  167,152   $177,133   $ 98,937   $ 52,257   $ 47,882
  Portion of rents representative of interest
    factor...................................      12,219     11,352     11,935     11,883     11,290
                                               ----------   --------   --------   --------   --------
    Total....................................     179,371    188,485    110,872     64,140     59,172
Ratio of earnings to fixed charges...........        3.09x      2.84x      4.06x      6.22x      5.53x
INCLUDING INTEREST ON DEPOSITS
Earnings
  Net income before taxes....................  $  374,547   $347,266   $339,381   $334,493   $268,130
  Interest on debt...........................     167,152    177,133     98,937     52,257     47,882
  Interest on deposits.......................     465,553    444,706    321,969    315,858    389,989
  Portion of rents representative of interest
    factor...................................      12,219     11,352     11,935     11,883     11,290
                                               ----------   --------   --------   --------   --------
    Total....................................   1,019,471    980,457    772,222    714,491    717,291
Fixed charges
  Interest on debt...........................  $  167,152   $177,133   $ 98,937   $ 52,257   $ 47,882
  Interest on deposits.......................     465,553    444,706    321,969    315,858    389,989
  Portion of rents representative of interest
    factor...................................      12,219     11,352     11,935     11,883     11,290
                                               ----------   --------   --------   --------   --------
    Total....................................     644,924    633,191    432,841    379,998    449,161
Ratio of earnings to fixed charges...........        1.58x      1.55x      1.78x      1.88x      1.60x
</TABLE>
    

<PAGE>   1
 
                                                                    EXHIBIT 23.1
 
                        CONSENT OF KPMG PEAT MARWICK LLP
 
The Board of Directors
  Firstar Corporation
 
   
We consent to incorporation by reference in Amendment No. 1 to the
Registration Statement on Form S-4 of Firstar Corporation of our report dated
January 15, 1997, relating to the consolidated balance sheets of Firstar
Corporation and subsidiaries as of December 31, 1996 and 1995, and the related
consolidated statements of income, stockholders' equity and cash flows for each
of the years in the three-year period ended December 31, 1996, which report
appears in the December 31, 1996 annual report on Form 10-K of Firstar
Corporation and to the reference to our firm under the heading "Experts" in the
Registration Statement.
    
 
                                          KPMG PEAT MARWICK LLP
 
Milwaukee, Wisconsin
   
April 4, 1997
    


<PAGE>   1
 
                                                                    EXHIBIT 99.1
 
                             LETTER OF TRANSMITTAL
 
                            FIRSTAR CAPITAL TRUST I
 
                             Offer to Exchange its
                       8.32% Series B Capital Securities
                (Liquidation Amount $1,000 per Capital Security)
          which have been registered under the Securities Act of 1933
                       for any and all of its outstanding
                       8.32% Series A Capital Securities
                (Liquidation Amount $1,000 per Capital Security)
                           Pursuant to the Prospectus
   
                              dated April 4, 1997
    
- --------------------------------------------------------------------------------
 
   
     THE EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M., NEW
         YORK CITY TIME, ON MAY 7, 1997, UNLESS THE OFFER IS EXTENDED.
    
- --------------------------------------------------------------------------------
 
                 The Exchange Agent for the Exchange Offer is:
 
                            THE CHASE MANHATTAN BANK
 
                        By Registered or Certified Mail
   
                         or Hand or Overnight Delivery:
    
                            The Chase Manhattan Bank
   
                                55 Water Street
    
   
                            Room 234, North Building
    
   
                            New York, New York 10041
    
   
                           Attention: Carlos Esteves
    
 
                             Confirm by Telephone:
   
                                 (212) 638-0828
    
 
                            Facsimile Transmissions:
                          (Eligible Institutions Only)
   
                        (212) 638-7375 or (212) 344-9367
    
 
     DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET
FORTH ABOVE OR TRANSMISSION OF THIS LETTER OF TRANSMITTAL VIA FACSIMILE TO A
NUMBER OTHER THAN AS SET FORTH ABOVE DOES NOT CONSTITUTE A VALID DELIVERY.
 
     THE INSTRUCTIONS CONTAINED HEREIN SHOULD BE READ CAREFULLY BEFORE THIS
LETTER OF TRANSMITTAL IS COMPLETED.
 
     Capitalized terms used but not defined herein shall have the same meaning
given them in the Prospectus (as defined below).
 
   
     This Letter of Transmittal is to be completed by holders of Old Capital
Securities (as defined below) either if Old Capital Securities are to be
forwarded herewith or if tenders of Old Capital Securities are to be made by
book-entry transfer to an account maintained by The Chase Manhattan Bank (the
"Exchange Agent") at The Depository Trust Company ("DTC") pursuant to the
procedures set forth in "The Exchange
    
<PAGE>   2
 
   
Offer--Procedures for Tendering Old Capital Securities" in the Prospectus and an
Agent's Message (as defined herein) is not delivered.
    
 
     Holders of Old Capital Securities whose certificates (the "Certificates")
for such Old Capital Securities are not immediately available or who cannot
deliver their Certificates and all other required documents to the Exchange
Agent on or prior to the Expiration Date (as defined in the Prospectus) or who
cannot complete the procedures for book-entry transfer on a timely basis, must
tender their Old Capital Securities according to the guaranteed delivery
procedures set forth in "The Exchange Offer--Procedures for Tendering Old
Capital Securities" in the Prospectus.
 
     DELIVERY OF DOCUMENTS TO DTC DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE
AGENT.
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
 
ALL TENDERING HOLDERS COMPLETE THIS BOX:
 
   
<TABLE>
<S><C>                
- ----------------------------------------------------------------------------------------------------------------
                                 DESCRIPTION OF OLD CAPITAL SECURITIES TENDERED
- ----------------------------------------------------------------------------------------------------------------
   IF BLANK, PLEASE PRINT NAME AND ADDRESS OF                    OLD CAPITAL SECURITIES TENDERED
               REGISTERED HOLDER.                             (ATTACH ADDITIONAL LIST IF NECESSARY)
- ----------------------------------------------------------------------------------------------------------------
                                                                          AGGREGATE       LIQUIDATION AMOUNT OF
                                                                     LIQUIDATION AMOUNT  OLD CAPITAL SECURITIES
                                                     CERTIFICATE       OF OLD CAPITAL           TENDERED
                                                     NUMBER(S)*          SECURITIES       (IF LESS THAN ALL)**
                                                 ---------------------------------------------------------------
 
                                                 ---------------------------------------------------------------
 
                                                 ---------------------------------------------------------------
 
                                                 ---------------------------------------------------------------
                                                        TOTAL
                                                       AMOUNT
                                                      TENDERED:
- ----------------------------------------------------------------------------------------------------------------
                                 *  Need not be completed by book-entry holders.
 ** Old Capital Securities may be tendered in whole or in part in denominations of $100,000 and integral
    multiples of $1,000 in excess thereof, provided that if any Old Capital Securities are tendered for exchange
    in part, the untendered principal amount thereof must be $100,000 or any integral multiple of $1,000 in
    excess thereof. All Old Capital Securities held shall be deemed tendered unless a lesser number is specified
    in this column.
- ----------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
           (BOXES BELOW TO BE CHECKED BY ELIGIBLE INSTITUTIONS ONLY)
 
[ ] CHECK HERE IF TENDERED OLD CAPITAL SECURITIES ARE BEING DELIVERED BY
    BOOK-ENTRY TRANSFER MADE TO THE ACCOUNT MAINTAINED BY THE EXCHANGE AGENT
    WITH DTC AND COMPLETE THE FOLLOWING:
 
   Name of Tendering Institution
 
   -----------------------------------------------------------------------------
 
   DTC Account Number

   -----------------------------------------------------------------------------
 
   Transaction Code Number
   -----------------------------------------------------------------------------
 
[ ] CHECK HERE AND ENCLOSE A PHOTOCOPY OF THE NOTICE OF GUARANTEED DELIVERY IF
    TENDERED OLD CAPITAL SECURITIES ARE BEING DELIVERED PURSUANT TO A NOTICE OF
    GUARANTEED DELIVERY PREVIOUSLY SENT TO THE EXCHANGE AGENT AND COMPLETE THE
    FOLLOWING:
 
   Name of Registered Holder(s)
 
   -----------------------------------------------------------------------------
<PAGE>   3
 
   Window Ticket Number (if any)______________________________________________
 
   Date of Execution of Notice of Guaranteed Delivery_________________________
 
   Name of Institution which Guaranteed Delivery______________________________
 
   
        If Guaranteed Delivery is to be made By Book-Entry Transfer:
    
 
             Name of Tendering Institution____________________________________
 
             DTC Account Number_______________________________________________
 
             Transaction Code Number__________________________________________
 
[ ] CHECK HERE IF TENDERED BY BOOK-ENTRY TRANSFER AND NON-EXCHANGED OLD CAPITAL
    SECURITIES ARE TO BE RETURNED BY CREDITING THE DTC ACCOUNT NUMBER SET FORTH
    ABOVE.
 
[ ] CHECK HERE IF YOU ARE A BROKER-DEALER WHO ACQUIRED THE OLD CAPITAL
    SECURITIES FOR ITS OWN ACCOUNT AS A RESULT OF MARKET MAKING OR OTHER TRADING
    ACTIVITIES (A "PARTICIPATING BROKER-DEALER") AND WISH TO RECEIVE 10
    ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR
    SUPPLEMENTS THERETO.
 
   Name:_______________________________________________________________________
 
   Address:____________________________________________________________________

   ____________________________________________________________________________
<PAGE>   4
 
Ladies and Gentlemen:
 
   
     The undersigned hereby tenders to Firstar Capital Trust I, a trust formed
under the laws of Delaware (the "Trust") and Firstar Corporation, a Wisconsin
corporation, (the "Corporation"), the above described aggregate Liquidation
Amount of the Trust's 8.32% Series A Capital Securities (the "Old Capital
Securities") in exchange for a like aggregate Liquidation Amount of the Trust's
8.32% Series B Capital Securities (the "New Capital Securities") which have been
registered under the Securities Act of 1933 (the "Securities Act"), upon the
terms and subject to the conditions set forth in the Prospectus dated April 4,
1997, (as the same may be amended or supplemented from time to time, the
"Prospectus"), receipt of which is acknowledged, and in this Letter of
Transmittal (which, together with the Prospectus, constitute the "Exchange
Offer").
    
 
     Subject to and effective upon the acceptance for exchange of all or any
portion of the Old Capital Securities tendered herewith in accordance with the
terms and conditions of the Exchange Offer (including, if the Exchange Offer is
extended or amended, the terms and conditions of any such extension or
amendment), the undersigned hereby sells, assigns and transfers to or upon the
order of the Trust all right, title and interest in and to such Old Capital
Securities as are being tendered herewith. The undersigned hereby irrevocably
constitutes and appoints the Exchange Agent as its agent and attorney-in-fact
(with full knowledge that the Exchange Agent is also acting as agent of the
Corporation and the Trust in connection with the Exchange Offer) with respect to
the tendered Old Capital Securities, with full power of substitution (such power
of attorney being deemed to be an irrevocable power coupled with an interest),
subject only to the right of withdrawal described in the Prospectus, to (i)
deliver Certificates for Old Capital Securities to the Corporation or the Trust
together with all accompanying evidences of transfer and authenticity to, or
upon the order of, the Trust, upon receipt by the Exchange Agent, as the
undersigned's agent, of the New Capital Securities to be issued in exchange for
such Old Capital Securities, (ii) present Certificates for such Old Capital
Securities for transfer, and to transfer the Old Capital Securities on the books
of the Trust, and (iii) receive for the account of the Trust all benefits and
otherwise exercise all rights of beneficial ownership of such Old Capital
Securities, all in accordance with the terms and conditions of the Exchange
Offer.
 
     THE UNDERSIGNED HEREBY REPRESENTS AND WARRANTS THAT THE UNDERSIGNED HAS
FULL POWER AND AUTHORITY TO TENDER, EXCHANGE, SELL, ASSIGN AND TRANSFER THE OLD
CAPITAL SECURITIES TENDERED HEREBY AND THAT, WHEN THE SAME ARE ACCEPTED FOR
EXCHANGE, THE TRUST WILL ACQUIRE GOOD, MARKETABLE AND UNENCUMBERED TITLE
THERETO, FREE AND CLEAR OF ALL LIENS, RESTRICTIONS, CHARGES AND ENCUMBRANCES,
AND THAT THE OLD CAPITAL SECURITIES TENDERED HEREBY ARE NOT SUBJECT TO ANY
ADVERSE CLAIMS OR PROXIES. THE UNDERSIGNED WILL, UPON REQUEST, EXECUTE AND
DELIVER ANY ADDITIONAL DOCUMENTS DEEMED BY THE CORPORATION, THE TRUST OR THE
EXCHANGE AGENT TO BE NECESSARY OR DESIRABLE TO COMPLETE THE EXCHANGE, ASSIGNMENT
AND TRANSFER OF THE OLD CAPITAL SECURITIES TENDERED HEREBY, AND THE UNDERSIGNED
WILL COMPLY WITH ITS OBLIGATIONS UNDER THE REGISTRATION RIGHTS AGREEMENT. THE
UNDERSIGNED HAS READ AND AGREES TO ALL OF THE TERMS OF THE EXCHANGE OFFER.
 
     The name(s) and address(es) of the registered holder(s) of the Old Capital
Securities tendered hereby should be printed above, if they are not already set
forth above, as they appear on the Certificates representing such Old Capital
Securities. The Certificate number(s) and the Old Capital Securities that the
undersigned wishes to tender should be indicated in the appropriate boxes above.
 
     If any tendered Old Capital Securities are not exchanged pursuant to the
Exchange Offer for any reason, or if Certificates are submitted for more Old
Capital Securities than are tendered or accepted for exchange, Certificates for
such nonexchanged or nontendered Old Capital Securities will be returned (or, in
the case of Old Capital Securities tendered by book-entry transfer, such Old
Capital Securities will be credited to an account maintained at DTC), without
expense to the tendering holder, promptly following the expiration or
termination of the Exchange Offer.
 
   
     The undersigned understands that tenders of Old Capital Securities pursuant
to any one of the procedures described in "The Exchange Offer--Procedures for
Tendering Old Capital Securities" in the Prospectus and in the instructions
will, upon the Corporation's and the Trust's acceptance for exchange of such
tendered Old Capital Securities, constitute a binding agreement between the
undersigned, the Corporation and the Trust upon the terms and subject to the
conditions of the Exchange Offer. The undersigned recognizes that, under
    
<PAGE>   5
 
certain circumstances set forth in the Prospectus, the Corporation and the Trust
may not be required to accept for exchange any of the Old Capital Securities
tendered hereby.
 
     Unless otherwise indicated herein in the box entitled "Special Issuance
Instructions" below, the undersigned hereby directs that the New Capital
Securities be issued in the name(s) of the undersigned or, in the case of a
book-entry transfer of Old Capital Securities, that such New Capital Securities
be credited to the account indicated above maintained at DTC. If applicable,
substitute Certificates representing Old Capital Securities not exchanged or not
accepted for exchange will be issued to the undersigned or, in the case of a
book-entry transfer of Old Capital Securities, will be credited to the account
indicated above maintained at DTC. Similarly, unless otherwise indicated under
"Special Delivery Instructions," please deliver New Capital Securities to the
undersigned at the address shown below the undersigned's signature.
 
     BY TENDERING OLD CAPITAL SECURITIES AND EXECUTING THIS LETTER OF
TRANSMITTAL, THE UNDERSIGNED HEREBY REPRESENTS AND AGREES THAT (I) THE
UNDERSIGNED IS NOT AN "AFFILIATE" OF THE CORPORATION OR THE TRUST, (II) ANY NEW
CAPITAL SECURITIES TO BE RECEIVED BY THE UNDERSIGNED ARE BEING ACQUIRED IN THE
ORDINARY COURSE OF ITS BUSINESS, (III) THE UNDERSIGNED HAS NO ARRANGEMENT OR
UNDERSTANDING WITH ANY PERSON TO PARTICIPATE IN THE DISTRIBUTION (WITHIN THE
MEANING OF THE SECURITIES ACT) OF NEW CAPITAL SECURITIES TO BE RECEIVED IN THE
EXCHANGE OFFER, AND (IV) IF THE UNDERSIGNED IS NOT A BROKER-DEALER, THE
UNDERSIGNED IS NOT ENGAGED IN, AND DOES NOT INTEND TO ENGAGE IN, A DISTRIBUTION
(WITHIN THE MEANING OF THE SECURITIES ACT) OF SUCH NEW CAPITAL SECURITIES. BY
TENDERING OLD CAPITAL SECURITIES PURSUANT TO THE EXCHANGE OFFER AND EXECUTING
THIS LETTER OF TRANSMITTAL, A HOLDER OF OLD CAPITAL SECURITIES WHICH IS A
BROKER-DEALER REPRESENTS AND AGREES, CONSISTENT WITH CERTAIN INTERPRETIVE
LETTERS ISSUED BY THE STAFF OF THE DIVISION OF CORPORATION FINANCE OF THE
SECURITIES AND EXCHANGE COMMISSION TO THIRD PARTIES, THAT (A) SUCH OLD CAPITAL
SECURITIES HELD BY THE BROKER-DEALER ARE HELD ONLY AS A NOMINEE, OR (B) SUCH OLD
CAPITAL SECURITIES WERE ACQUIRED BY SUCH BROKER-DEALER FOR ITS OWN ACCOUNT AS A
RESULT OF MARKET-MAKING ACTIVITIES OR OTHER TRADING ACTIVITIES AND IT WILL
DELIVER THE PROSPECTUS (AS AMENDED OR SUPPLEMENTED FROM TIME TO TIME) MEETING
THE REQUIREMENTS OF THE SECURITIES ACT IN CONNECTION WITH ANY RESALE OF SUCH NEW
CAPITAL SECURITIES (PROVIDED THAT, BY SO ACKNOWLEDGING AND BY DELIVERING A
PROSPECTUS, SUCH BROKER-DEALER WILL NOT BE DEEMED TO ADMIT THAT IT IS AN
"UNDERWRITER" WITHIN THE MEANING OF THE SECURITIES ACT).
 
     THE CORPORATION AND THE TRUST HAVE AGREED THAT, SUBJECT TO THE PROVISIONS
OF THE REGISTRATION RIGHTS AGREEMENT, THE PROSPECTUS, AS IT MAY BE AMENDED OR
SUPPLEMENTED FROM TIME TO TIME, MAY BE USED BY A PARTICIPATING BROKER-DEALER (AS
DEFINED BELOW) IN CONNECTION WITH RESALES OF NEW CAPITAL SECURITIES RECEIVED IN
EXCHANGE FOR OLD CAPITAL SECURITIES, WHERE SUCH OLD CAPITAL SECURITIES WERE
ACQUIRED BY SUCH PARTICIPATING BROKER-DEALER FOR ITS OWN ACCOUNT AS A RESULT OF
MARKET-MAKING ACTIVITIES OR OTHER TRADING ACTIVITIES, FOR A PERIOD ENDING 90
DAYS AFTER THE EXPIRATION DATE (SUBJECT TO EXTENSION UNDER CERTAIN LIMITED
CIRCUMSTANCES DESCRIBED IN THE PROSPECTUS) OR, IF EARLIER, WHEN ALL SUCH NEW
CAPITAL SECURITIES HAVE BEEN DISPOSED OF BY SUCH PARTICIPATING BROKER-DEALER. IN
THAT REGARD, EACH BROKER-DEALER WHO ACQUIRED OLD CAPITAL SECURITIES FOR ITS OWN
ACCOUNT AND AS A RESULT OF MARKET-MAKING OR OTHER TRADING ACTIVITIES (A
"PARTICIPATING BROKER-DEALER"), BY TENDERING SUCH OLD CAPITAL SECURITIES AND
EXECUTING THIS LETTER OF TRANSMITTAL, AGREES THAT, UPON RECEIPT OF NOTICE FROM
THE CORPORATION OR THE TRUST OF THE OCCURRENCE OF ANY EVENT OR THE DISCOVERY OF
ANY FACT WHICH MAKES ANY STATEMENT CONTAINED OR INCORPORATED BY REFERENCE
THEREIN, IN LIGHT OF THE CIRCUMSTANCES UNDER WHICH THEY WERE MADE, NOT
MISLEADING OR OF THE OCCURRENCE OF CERTAIN OTHER EVENTS SPECIFIED IN THE
REGISTRATION RIGHTS AGREEMENT, SUCH PARTICIPATING BROKER-DEALER WILL SUSPEND THE
SALE OF NEW CAPITAL SECURITIES PURSUANT TO THE PROSPECTUS UNTIL THE CORPORATION
AND THE TRUST HAVE AMENDED OR SUPPLEMENTED THE PROSPECTUS TO CORRECT SUCH
MISSTATEMENT OR OMISSION AND HAS FURNISHED COPIES OF THE AMENDED OR SUPPLEMENTED
PROSPECTUS TO THE PARTICIPATING BROKER-DEALER OR THE CORPORATION OR THE TRUST
HAS GIVEN NOTICE THAT THE SALE OF THE NEW CAPITAL SECURITIES MAY BE RESUMED, AS
THE CASE MAY BE. IF THE CORPORATION OR THE TRUST GIVES SUCH NOTICE TO SUSPEND
THE SALE OF THE NEW CAPITAL SECURITIES, IT SHALL EXTEND THE 90-DAY PERIOD
REFERRED TO ABOVE DURING WHICH PARTICIPATING BROKER-DEALERS ARE ENTITLED TO USE
THE PROSPECTUS IN CONNECTION WITH THE RESALE OF NEW CAPITAL SECURITIES BY THE
NUMBER OF DAYS DURING THE PERIOD FROM AND INCLUDING THE DATE OF THE GIVING OF
SUCH NOTICE TO AND INCLUDING THE DATE WHEN PARTICIPATING BROKER-DEALERS SHALL
HAVE RECEIVED COPIES OF THE SUPPLEMENTED OR AMENDED PROSPECTUS NECESSARY TO
PERMIT RESALES OF
<PAGE>   6
 
THE NEW CAPITAL SECURITIES OR TO AND INCLUDING THE DATE ON WHICH THE CORPORATION
OR THE TRUST HAS GIVEN NOTICE THAT THE SALE OF NEW CAPITAL SECURITIES MAY BE
RESUMED, AS THE CASE MAY BE.
 
     As a result, a Participating Broker-Dealer who intends to use the
Prospectus in connection with resales of New Capital Securities received in
exchange for Old Capital Securities pursuant to the Exchange Offer must notify
the Corporation and the Trust, or cause the Corporation and the Trust to be
notified, on or prior to the Expiration Date, that it is a Participating
Broker-Dealer. Such notice may be given in the space provided above or may be
delivered to the Exchange Agent at the address set forth in the Prospectus under
"The Exchange Offer--Exchange Agent."
 
     Holders of Old Capital Securities whose Old Capital Securities are accepted
for exchange will not receive Distributions on such Old Capital Securities and
the undersigned waives the right to receive any Distribution on such Old Capital
Securities accumulated from and after December 23, 1996. Accordingly, holders of
New Capital Securities as of the record date for the payment of Distributions on
June 15, 1997 will be entitled to Distributions accumulated from and after
December 23, 1996.
 
     All authority herein conferred or agreed to be conferred in this Letter of
Transmittal shall survive the death or incapacity of the undersigned and any
obligation of the undersigned hereunder shall be binding upon the heirs,
executors, administrators, personal representatives, trustees in bankruptcy,
legal representatives, successors and assigns of the undersigned. Except as
stated in the Prospectus, this tender is irrevocable.
<PAGE>   7
 
                              HOLDER(S) SIGN HERE
                         (See Instructions 2, 5 and 6)
                  (Please Complete Substitute Form W-9 Below)
      (Note: Signature(s) must be guaranteed if required by Instruction 2)
 
     Must be signed by registered holder(s) exactly as name(s) appear(s) on
Certificates(s) for the Old Capital Securities hereby tendered or on a security
position listing, or by any person(s) authorized to become the registered
holder(s) by endorsements and documents transmitted herewith (including such
opinions of counsel, certificates and other information as may be required by
the Trust or the Trustee for the Old Capital Securities to comply with the
restrictions on transfer applicable to the Old Capital Securities). If signature
is by an attorney-in-fact, executor, administrator, trustee, guardian, officer
of a corporation or another acting in a fiduciary capacity or representative
capacity, please set forth the signer's full title. See Instruction 5.
 
________________________________________________________________________________

________________________________________________________________________________
                          (Signature(s) of Holder(s))
 
Date __________________, 1997

Name(s)_________________________________________________________________________
                                 (Please Print)
________________________________________________________________________________

   
Capacity or Title_______________________________________________________________
    

   
    

   
Address_________________________________________________________________________
      
                               (Include Zip Code)
   
    

   
                               
    
 
Area Code(s) and Telephone Number_______________________________________________

________________________________________________________________________________
               (Tax Identification or Social Security Number(s))
 
                           GUARANTEE OF SIGNATURE(S)
                           (SEE INSTRUCTIONS 2 AND 5)
 
Authorized Signature____________________________________________________________
Name____________________________________________________________________________
                                 (Please Print)
 
Date __________________, 1997

Capacity or Title_______________________________________________________________

Name of Firm____________________________________________________________________

Address_________________________________________________________________________
                               (Include Zip Code)
 
Area Code and Telephone Number__________________________________________________
<PAGE>   8
 
                         SPECIAL ISSUANCE INSTRUCTIONS
                         (SEE INSTRUCTIONS 1, 5 AND 6)

To be completed ONLY if New Capital Securities or any Old Capital Securities
that are not tendered are to be issued in the name of someone other than the
registered holder of the Old Capital Securities whose name(s) appear(s) above.
 
Issue:
 
[ ] New Capital Securities to:
[ ] Old Capital Securities not tendered to:
Name:
                                 (Please Print)
 
Address:
 
- -------------------------------------------------------
                               (Include Zip Code)
 
- -------------------------------------------------------
                  (Tax Identification or Social Security No.)
 
                         SPECIAL DELIVERY INSTRUCTIONS
                         (SEE INSTRUCTIONS 1, 5 AND 6)

To be completed ONLY if New Capital Securities or any Old Capital Securities
that are not tendered are to be sent to someone other than the registered holder
of the Old Capital Securities whose name(s) appear(s) above, or to the
registered holder(s) at an address other than that shown above.
 
Mail:
 
[ ] New Capital Securities to:
[ ] Old Capital Securities not tendered to:
Name:
                                 (Please Print)
 
Address:
 
- -------------------------------------------------------
                               (Include Zip Code)
 
- -------------------------------------------------------
<PAGE>   9
 
                                  INSTRUCTIONS
 
         FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER
 
   
     1. DELIVERY OF LETTER OF TRANSMITTAL AND CERTIFICATES; GUARANTEED DELIVERY
PROCEDURES. This Letter of Transmittal is to be completed either if (a) tenders
are to be made pursuant to the procedures for tender by book-entry transfer set
forth in "The Exchange Offer -- Procedures for Tendering Old Capital Securities"
in the Prospectus and an Agent's Message is not delivered or (b) Certificates
are to be forwarded herewith. Timely confirmation of a book-entry transfer of
such Old Capital Securities into the Exchange Agent's account at DTC, or
Certificates as well as this Letter of Transmittal (or facsimile thereof),
properly completed and duly executed, with any required signature guarantees,
and any other documents required by this Letter of Transmittal, must be received
by the Exchange Agent at its addresses set forth herein on or prior to the
Expiration Date. Tenders by book-entry transfer may also be made by delivering
an Agent's Message in lieu of this Letter of Transmittal. The term "Agent's
Message" means a message, transmitted by DTC to and received by the Exchange
Agent and forming a part of a book-entry confirmation, which states that DTC has
received an express acknowledgment from the tendering Participant, which
acknowledgment states that such Participant has received and agrees to be bound
by the Letter of Transmittal and that the Trust and the Corporation may enforce
the Letter of Transmittal against such Participant. The term "book-entry
confirmation" means a timely confirmation of book-entry transfer of Old Capital
Securities into the Exchange Agent's account at DTC. Old Capital Securities may
be tendered in whole or in part in the principal amount of $100,000 (100 Capital
Securities) and integral multiples of $1,000 in excess thereof, provided that,
if any Old Capital Securities are tendered for exchange in part, the untendered
principal amount thereof must be $100,000 (100 Capital Securities) or any
integral multiple of $1,000 in excess thereof.
    
 
   
     Holders who wish to tender their Old Capital Securities and (i) who cannot
complete the procedures for delivery by book-entry transfer on a timely basis,
or (ii) who cannot deliver their Old Capital Securities, this Letter of
Transmittal and all other required documents to the Exchange Agent on or prior
to the Expiration Date or (iii) whose Old Capital Securities are not immediately
available may tender their Old Capital Securities by properly completing and
duly executing a Notice of Guaranteed Delivery pursuant to the guaranteed
delivery procedures set forth in "The Exchange Offer -- Procedures for Tendering
Old Capital Securities" in the Prospectus. Pursuant to such procedures: (a) such
tender must be made by or through an Eligible Institution (as defined below);
(b) a properly completed and duly executed Notice of Guaranteed Delivery,
substantially in the form made available by the Corporation, must be received by
the Exchange Agent on or prior to the Expiration Date; and (c) the Certificates
(or a book-entry confirmation) representing tendered Old Capital Securities, in
proper form for transfer, together with a Letter of Transmittal (or facsimile
thereof or Agent's Message in lieu thereof), properly completed and duly
executed, with any required signature guarantees and any other documents
required by this Letter of Transmittal, must be received by the Exchange Agent
within three New York Stock Exchange, Inc. trading days after the date of
execution of such Notice of Guaranteed Delivery, all as provided in "The
Exchange Offer -- Procedures for Tendering Old Capital Securities" in the
Prospectus.
    
 
     The Notice of Guaranteed Delivery may be delivered by hand or transmitted
by facsimile or mail to the Exchange Agent, and must include a guarantee by an
Eligible Institution in the form set forth in such Notice. For Old Capital
Securities to be properly tendered pursuant to the guaranteed delivery
procedure, the Exchange Agent must receive a Notice of Guaranteed Delivery on or
prior to the Expiration Date. As used herein and in the Prospectus, "Eligible
Institution" means a firm or other entity identified in Rule 17Ad-15 under the
Exchange Act as "an eligible guarantor institution," including (as such terms
are defined therein) (i) a bank; (ii) a broker, dealer, municipal securities
broker or dealer or government securities broker or dealer; (iii) a credit
union; (iv) a national securities exchange, registered securities association or
clearing agency; or (v) a savings association that is a participant in a
Securities Transfer Association.
 
THE METHOD OF DELIVERY OF CERTIFICATES, THIS LETTER OF TRANSMITTAL AND ALL OTHER
REQUIRED DOCUMENTS IS AT THE OPTION AND SOLE RISK OF THE TENDERING HOLDER AND
THE DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE
AGENT. IF DELIVERY IS BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED,
PROPERLY
<PAGE>   10
 
INSURED, OR OVERNIGHT DELIVERY SERVICE IS RECOMMENDED. IN ALL CASES, SUFFICIENT
TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.
 
   
     NEITHER THE CORPORATION NOR THE TRUST WILL ACCEPT ANY ALTERNATIVE,
CONDITIONAL OR CONTINGENT TENDERS. EACH TENDERING HOLDER, BY EXECUTION OF A
LETTER OF TRANSMITTAL (OR FACSIMILE THEREOF OR AGENT'S MESSAGE IN LIEU THEREOF),
WAIVES ANY RIGHT TO RECEIVE ANY NOTICE OF THE ACCEPTANCE OF SUCH TENDER.
    
 
     2. GUARANTEE OF SIGNATURES. No signature guarantee on this Letter of
Transmittal is required if:
 
     (i) this Letter of Transmittal is signed by the registered holder (which
term, for purposes of this document, shall include any participant in DTC whose
name appears on a security position listing as the owner of the Old Capital
Securities) of Old Capital Securities tendered herewith, unless such holder(s)
has completed either the box entitled "Special Issuance Instructions" or the box
entitled "Special Delivery Instructions" above, or
 
     (ii) such Old Capital Securities are tendered for the account of a firm
that is an Eligible Institution.
 
     In all other cases, an Eligible Institution must guarantee the signature(s)
on this Letter of Transmittal. See Instruction 5.
 
   
     3. INADEQUATE SPACE. If the space provided in the box captioned
"Description of Old Capital Securities Tendered" is inadequate, the Certificate
number(s) and/or the principal amount of Old Capital Securities and any other
required information should be listed on a separate signed schedule which is
attached to this Letter of Transmittal.
    
 
   
     4. PARTIAL TENDERS AND WITHDRAWAL RIGHTS. Tenders of Old Capital Securities
will be accepted only in the principal amount of $100,000 (100 Capital
Securities) and integral multiples of $1,000 in excess thereof, provided that if
any Old Capital Securities are tendered for exchange in part, the untendered
principal amount thereof must be $100,000 (100 Capital securities) or any
integral multiple of $1,000 in excess thereof. If less than all the Old Capital
Securities evidenced by any Certificate submitted are to be tendered, fill in
the principal amount of Old Capital Securities which are to be tendered in the
box entitled "Liquidation Amount of Old Capital Securities Tendered." In such
case, new Certificate(s) for the remainder of the Old Capital Securities that
were evidenced by your Old Certificate(s) will be sent to the holder of the Old
Capital Security, promptly after the Expiration Date. All Old Capital Securities
represented by Certificates delivered to the Exchange Agent will be deemed to
have been tendered unless otherwise indicated.
    
 
   
     Except as otherwise provided herein, tenders of Old Capital Securities may
be withdrawn at any time on or prior to the Expiration Date. In order for a
withdrawal to be effective on or prior to that time, a written, telegraphic,
telex or facsimile transmission of such notice of withdrawal must be timely
received by the Exchange Agent at one of its addresses set forth above or in the
Prospectus on or prior to the Expiration Date. Any such notice of withdrawal
must specify the name of the person who tendered the Old Capital Securities to
be withdrawn, the aggregate principal amount of Old Capital Securities to be
withdrawn, and (if Certificates for Old Capital Securities have been tendered)
the name of the registered holder of the Old Capital Securities as set forth on
the Certificate for the Old Capital Securities, if different from that of the
person who tendered such Old Capital Securities. If Certificates for the Old
Capital Securities have been delivered or otherwise identified to the Exchange
Agent, then prior to the physical release of such Certificates for the Old
Capital Securities, the tendering holder must submit the serial numbers shown on
the particular Certificates for the Old Capital Securities to be withdrawn and
the signature on the notice of withdrawal must be guaranteed by an Eligible
Institution, except in the case of Old Capital Securities tendered for the
account of an Eligible Institution. If Old Capital Securities have been tendered
pursuant to the procedures for book-entry transfer set forth in "The Exchange
Offer -- Procedures for Tendering Old Capital Securities," the notice of
withdrawal must specify the name and number of the account at DTC to be credited
with the withdrawal of Old Capital Securities, in which case a notice of
withdrawal will be effective if delivered to the Exchange Agent by written,
telegraphic, telex or facsimile transmission. Withdrawals of tenders of Old
Capital Securities may not be rescinded. Old Capital Securities properly
withdrawn will not be deemed validly tendered for purposes of the Exchange
Offer, but may be retendered at any subsequent time on or prior to the
Expiration Date by following
    
<PAGE>   11
 
any of the procedures described in the Prospectus under "The Exchange Offer --
Procedures for Tendering Old Capital Securities."
 
     All questions as to the validity, form and eligibility (including time of
receipt) of such withdrawal notices will be determined by the Corporation and
the Trust, in their sole discretion, whose determination shall be final and
binding on all parties. Neither the Corporation, the Trust, any affiliates or
assigns of the Corporation and the Trust, the Exchange Agent nor any other
person shall be under any duty to give any notification of any irregularities in
any notice of withdrawal or incur any liability for failure to give any such
notification. Any Old Capital Securities which have been tendered but which are
withdrawn will be returned to the holder thereof without cost to such holder
promptly after withdrawal.
 
   
     5. SIGNATURES ON LETTER OF TRANSMITTAL, ASSIGNMENTS AND ENDORSEMENTS. If
this Letter of Transmittal is signed by the registered holder(s) of the Old
Capital Securities tendered hereby, the signature(s) must correspond exactly
with the name(s) as written on the face of the Certificate(s) or on a security
position listing without alteration, enlargement or any change whatsoever.
    
 
     If any of the Old Capital Securities tendered hereby are owned of record by
two or more joint owners, all such owners must sign this Letter of Transmittal.
 
   
     If any tendered Old Capital Securities are registered in different name(s)
on several Certificates, it will be necessary to complete, sign and submit as
many separate Letters of Transmittal (or facsimiles thereof or Agent's Message
in lieu thereof) as there are different registrations of Certificates.
    
 
     If this Letter of Transmittal or any Certificates or bond powers are signed
by trustees, executors, administrators, guardians, attorneys-in-fact, officers
of corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing and must submit proper evidence
satisfactory to the Corporation and the Trust, in their sole discretion, of such
persons' authority to so act.
 
     When this Letter of Transmittal is signed by the registered owner(s) of the
Old Capital Securities listed and transmitted hereby, no endorsement(s) of
Certificate(s) or separate bond power(s) are required unless New Capital
Securities are to be issued in the name of a person other than the registered
holder(s). Signature(s) on such Certificate(s) or bond power(s) must be
guaranteed by an Eligible Institution.
 
     If this Letter of Transmittal is signed by a person other than the
registered owner(s) of the Old Capital Securities listed, the Certificates must
be endorsed or accompanied by appropriate bond powers, signed exactly as the
name or names of the registered owner(s) appear(s) on the Certificates, and also
must be accompanied by such opinions of counsel, certifications and other
information as the Corporation, the Trust or the Trustee for the Old Capital
Securities may require in accordance with the restrictions on transfer
applicable to the Old Capital Securities. Signatures on such Certificates or
bond powers must be guaranteed by an Eligible Institution.
 
     6. SPECIAL ISSUANCE AND DELIVERY INSTRUCTIONS. If New Capital Securities
are to be issued in the name of a person other than the signer of this Letter of
Transmittal, or if New Capital Securities are to be sent to someone other than
the signer of this Letter of Transmittal or to an address other than that shown
above, the appropriate boxes on this Letter of Transmittal should be completed.
Certificates for Old Capital Securities not exchanged will be returned by mail
or, if tendered by book-entry transfer, by crediting the account indicated above
maintained at DTC. See Instruction 4.
 
     7. IRREGULARITIES. The Corporation and the Trust will determine, in their
sole discretion, all questions as to the form of documents, validity,
eligibility (including time of receipt) and acceptance for exchange of any
tender of Old Capital Securities which determination shall be final and binding
on all parties. The Corporation and the Trust reserve the absolute right, in
their sole and absolute discretion, to reject any and all tenders determined by
either of them not to be in proper form or the acceptance of which, or exchange
for, may, in the view of counsel to the Corporation and the Trust, be unlawful.
The Corporation and the Trust also reserve the absolute right, subject to
applicable law, to waive any of the conditions of the Exchange Offer set forth
in the Prospectus under "The Exchange Offer -- Certain Conditions to the
Exchange Offer" or any conditions or irregularity in any tender of Old Capital
Securities of any particular holder whether or not similar conditions or
<PAGE>   12
 
irregularities are waived in the case of other holders. The Corporation's and
the Trust's interpretation of the terms and conditions of the Exchange Offer
(including this Letter of Transmittal and the instructions hereto) will be final
and binding. No tender of Old Capital Securities will be deemed to have been
validly made until all irregularities with respect to such tender have been
cured or waived. Neither the Corporation, the Trust, any affiliates or assigns
of the Corporation, the Trust, the Exchange Agent, or any other person shall be
under any duty to give notification of any irregularities in tenders or incur
any liability for failure to give such notification.
 
     8. QUESTIONS, REQUESTS FOR ASSISTANCE AND ADDITIONAL COPIES. Questions and
requests for assistance may be directed to the Exchange Agent at its address and
telephone number set forth on the front of this Letter of Transmittal.
Additional copies of the Prospectus, this Letter of Transmittal and the Notice
of Guaranteed Delivery may be obtained from the Exchange Agent or from your
broker, dealer, commercial bank, trust company or other nominee.
 
     9. 31% BACKUP WITHHOLDING; SUBSTITUTE FORM W-9. Under U.S. Federal income
tax law, a holder whose tendered Old Capital Securities are accepted for
exchange is required to provide the Exchange Agent with such holder's correct
taxpayer identification number ("TIN") on Substitute Form W-9 below. If the
Exchange Agent is not provided with the correct TIN, the Internal Revenue
Service (the "IRS") may subject the holder or other payee to a $50 penalty. In
addition, payments to such holders or other payees with respect to Old Capital
Securities exchanged pursuant to the Exchange Offer may be subject to 31% backup
withholding.
 
     The box in Part 2 of the Substitute Form W-9 may be checked if the
tendering holder has not been issued a TIN and has applied for a TIN or intends
to apply for a TIN in the near future. If the box in Part 2 is checked, the
holder or other payee must also complete the Certificate of Awaiting Taxpayer
Identification Number below in order to avoid backup withholding.
Notwithstanding that the box in Part 2 is checked and the Certificate of
Awaiting Taxpayer Identification Number is completed, the Exchange Agent will
withhold 31% of all payments made prior to the time a properly certified TIN is
provided to the Exchange Agent. The Exchange Agent will retain such amounts
withheld during the 60 day period following the date of the Substitute Form W-9.
If the holder furnishes the Exchange Agent with its TIN within 60 days after the
date of the Substitute Form W-9, the amounts retained during the 60 day period
will be remitted to the holder and no further amounts shall be retained or
withheld from payments made to the holder thereafter. If, however, the holder
has not provided the Exchange Agent with its TIN within such 60 day period,
amounts withheld will be remitted to the IRS as backup withholding. In addition,
31% of all payments made thereafter will be withheld and remitted to the IRS
until a correct TIN is provided.
 
     The holder is required to give the Exchange Agent the TIN (e.g., social
security number or employer identification number) of the registered owner of
the Old Capital Securities or of the last transferee appearing on the transfers
attached to, or endorsed on, the Old Capital Securities. If the Old Capital
Securities are registered in more than one name or are not in the name of the
actual owner, consult the enclosed "Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9" for additional guidance on which
number to report.
 
     Certain holders (including, among others, corporations, financial
institutions and certain foreign persons) may not be subject to these backup
withholding and reporting requirements. Such holders should nevertheless
complete the attached Substitute Form W-9 below, and write "exempt" on the face
thereof, to avoid possible erroneous backup withholding. A foreign person may
qualify as an exempt recipient by submitting a properly completed IRS Form W-8,
signed under penalties of perjury, attesting to that holder's exempt status.
Please consult the enclosed "Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9" for additional guidance on which
holders are exempt from backup withholding.
 
     Backup withholding is not an additional U.S. Federal income tax. Rather,
the U.S. Federal income tax liability of a person subject to backup withholding
will be reduced by the amount of tax withheld. If withholding results in an
overpayment of taxes, a refund may be obtained.
<PAGE>   13
 
     10. LOST, DESTROYED OR STOLEN CERTIFICATES. If any Certificate(s)
representing Old Capital Securities have been lost, destroyed or stolen, the
holder should promptly notify the Exchange Agent. The holder will then be
instructed as to the steps that must be taken in order to replace the
Certificate(s). This Letter of Transmittal and related documents cannot be
processed until the procedures for replacing lost, destroyed or stolen
Certificate(s) have been followed.
 
     11. SECURITY TRANSFER TAXES. Holders who tender their Old Capital
Securities for exchange will not be obligated to pay any transfer taxes in
connection therewith. If, however, New Capital Securities are to be delivered
to, or are to be issued in the name of, any person other than the registered
holder of the Old Capital Securities tendered, or if a transfer tax is imposed
for any reason other than the exchange of Old Capital Securities in connection
with the Exchange Offer, then the amount of any such transfer tax (whether
imposed on the registered holder or any other persons) will be payable by the
tendering holder. If satisfactory evidence of payment of such taxes or exemption
therefrom is not submitted with the Letter of Transmittal, the amount of such
transfer taxes will be billed directly to such tendering holder.
 
     IMPORTANT: THIS LETTER OF TRANSMITTAL (OR FACSIMILE THEREOF) AND ALL OTHER
REQUIRED DOCUMENTS MUST BE RECEIVED BY THE EXCHANGE AGENT ON OR PRIOR TO THE
EXPIRATION DATE.
<PAGE>   14
 
                             TO BE COMPLETED BY ALL
                           TENDERING SECURITYHOLDERS
                              (SEE INSTRUCTION 9)
 
                     PAYOR'S NAME: FIRSTAR CAPITAL TRUST I
 
<TABLE>
<S><C>        
- ------------------------------------------------------------------------------------------------------------------------
                                PART 1 -- PLEASE PROVIDE YOUR TIN IN THE BOX AT RIGHT                TIN
         SUBSTITUTE             AND CERTIFY BY SIGNING AND DATING BELOW.
          FORM W-9                                                                          Social Security Number
                                                                                                 or Employer
                                                                                            Identification Number
                                -----------------------------------------------------------------------------------------
                                                                                                    PART 2
                                                                                               Awaiting TIN [ ]
                                                                                         ----------------------------
 
     DEPARTMENT OF THE          CERTIFICATION -- UNDER THE PENALTIES OF PERJURY, I CERTIFY THAT (1) the number shown
     TREASURY INTERNAL          on this form is my correct taxpayer identification number (or I am waiting for a
      REVENUE SERVICE           number to be issued to me), (2) I am not subject to backup withholding either because
                                (i) I am exempt from backup withholding, (ii) I have not been notified by the
    PAYER'S REQUEST FOR         Internal Revenue Service ("IRS") that I am subject to backup withholding as a result
  TAXPAYER IDENTIFICATION       of a failure to report all interest or dividends, or (iii) the IRS has notified me
        NUMBER (TIN)            that I am no longer subject to backup withholding, and (3) any other information
     AND CERTIFICATION          provided on this form is true and correct.
                                -------------------------------------------------------------------------------------
                                SIGNATURE____________________________________________________________________________
                                         
                                DATE_________________________________________________________________________________
                                    
                                You must cross out item (iii) in Part (2) above if you have been notified by the IRS
                                that you are subject to backup withholding because of underreporting interest or
                                dividends on your tax return and you have not been notified by the IRS that you are
                                no longer subject to backup withholding.
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY IN CERTAIN CIRCUMSTANCES
      RESULT IN BACKUP WITHHOLDING OF 31% OF ANY AMOUNTS PAID TO YOU PURSUANT TO
      THE EXCHANGE OFFER. PLEASE REVIEW THE ENCLOSED GUIDELINES FOR
      CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR
      ADDITIONAL DETAILS.
<PAGE>   15
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
I certify under penalties of perjury that a taxpayer identification number has
not been issued to me, and either (1) I have mailed or delivered an application
to receive a taxpayer identification number to the appropriate Internal Revenue
Service Center or Social Security Administration Office or (2) I intend to mail
or deliver an application in the near future. I understand that if I do not
provide a taxpayer identification number by the time of payment, 31% of all
payments made to me on account of the New Capital Securities shall be retained
until I provide a taxpayer identification number to the Exchange Agent and that,
if I do not provide my taxpayer identification number within 60 days, such
retained amounts shall be remitted to the Internal Revenue Service as backup
withholding and 31% of all reportable payments made to me thereafter will be
withheld and remitted to the Internal Revenue Service until I provide a taxpayer
identification number.

Signature__________________________             Date___________________________

<PAGE>   1
 
                                                                    EXHIBIT 99.2
 
                         NOTICE OF GUARANTEED DELIVERY
 
                                 FOR TENDER OF
 
                       8.32% SERIES A CAPITAL SECURITIES
                (LIQUIDATION AMOUNT $1,000 PER CAPITAL SECURITY)
 
                                       OF
 
                            FIRSTAR CAPITAL TRUST I
               UNCONDITIONALLY GUARANTEED BY FIRSTAR CORPORATION
 
     This Notice of Guaranteed Delivery, or one substantially equivalent to this
form, must be used to accept the Exchange Offer (as defined below) if (i) the
procedures for delivery by book-entry transfer cannot be completed on a timely
basis (ii) certificates for the Trust's (as defined below) 8.32% Series A
Capital Securities (the "Old Capital Securities") are not immediately available
or (iii) Old Capital Securities, the Letter of Transmittal and all other
required documents cannot be delivered to The CHASE MANHATTAN Bank (the
"Exchange Agent") on or prior to the Expiration Date (as defined in the
Prospectus referred to below). This Notice of Guaranteed Delivery may be
delivered by hand, overnight courier or mail, or transmitted by facsimile
transmission, to the Exchange Agent. See "The Exchange Offer--Procedures for
Tendering Old Capital Securities" in the Prospectus.
 
                 The Exchange Agent for the Exchange Offer is:
                            THE CHASE MANHATTAN BANK
 
         By Registered or Certified Mail or Hand or Overnight Delivery:
 
                            The Chase Manhattan Bank
                                55 Water Street
                            Room 234, North Building
                            New York, New York 10041
                           Attention: Carlos Esteves
 
                      Confirm by Telephone: (212) 638-0828
                            Facsimile Transmissions:
                          (Eligible Institutions Only)
                        (212) 638-7375 OR (212) 344-9367
 
     DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE OR TRANSMISSION OF THIS NOTICE OF GUARANTEED DELIVERY VIA A
FACSIMILE TO A NUMBER OTHER THAN AS SET FORTH ABOVE WILL NOT CONSTITUTE A VALID
DELIVERY.
 
     This Notice of Guaranteed Delivery is not to be used to guarantee
signatures. If a signature on a Letter of Transmittal is required to be
guaranteed by an "Eligible Institution" under the instructions thereto, such
signature guarantee must appear in the applicable space provided in the
signature box on the Letter of Transmittal.
 
              THE GUARANTEE ON THE REVERSE SIDE MUST BE COMPLETED
<PAGE>   2
 
Ladies and Gentlemen:
 
   
     The undersigned hereby tenders to Firstar Capital Trust I, a trust formed
under the laws of Delaware (the "Trust"), upon the terms and subject to the
conditions set forth in the Prospectus dated April 4, 1997 (as the same may be
amended or supplemented from time to time, the "Prospectus"), and the related
Letter of Transmittal (which together constitute the "Exchange Offer"), receipt
of which is hereby acknowledged, the aggregate liquidation amount of Old Capital
Securities set forth below pursuant to the guaranteed delivery procedures set
forth in the Prospectus under the caption "The Exchange Offer -- Procedures for
Tendering Old Capital Securities."
    
 
<TABLE>
<S><C>
Aggregate Principal Amount                             Name(s) of Registered Holder(s):____________________
     Tendered:________________________________
              
Certificate No(s). (if available):____________         Address(es):________________________________________
 
If Old Capital Securities will be tendered by          Area Code and
  book-entry transfer, provide the following           Telephone Number(s):
  information:

DTC Account Number:___________________________

Date:_________________________________________         Signature(s):_______________________________________
 
                                                GUARANTEE
                                 (NOT TO BE USED FOR SIGNATURE GUARANTEE)
  The undersigned, a firm or other entity identified in Rule 17Ad-15 under the Securities Exchange Act of
1934, as amended, as an "eligible guarantor institution," including (as such terms are defined therein): (1)
a bank; (2) (a) a broker, dealer, municipal securities broker, municipal securities dealer, government
securities broker, government securities dealer; (3)(a) a credit union; (4)(a) a national securities
exchange, registered securities association or clearing agency; or (b)(5) a savings association that is a
participant in a Securities Transfer Association recognized program (each of the foregoing being referred to
as an "Eligible Institution"), hereby guarantees to deliver to the Exchange Agent, at one of its addresses
set forth above, either the Old Capital Securities tendered hereby in proper form for transfer, or
confirmation of the book-entry transfer of such Old Capital Securities to the Exchange Agent's account at
The Depository Trust Company ("DTC"), pursuant to the procedures for book-entry transfer set forth in the
Prospectus, in either case together with one or more properly completed and duly executed Letter(s) of
Transmittal (or facsimile thereof or Agent's Message in lieu thereof) and any other required documents
within three business days after the date of execution of this Notice of Guaranteed Delivery. The
undersigned acknowledges that it must deliver the Letter(s) of Transmittal (or facsimile thereof or Agent's
Message in lieu thereof) and the Old Capital Securities tendered hereby to the Exchange Agent within the
time period set forth above and that failure to do so could result in a financial loss to the undersigned.

NAME OF FIRM:_________________________________         ____________________________________________________
                                                                       AUTHORIZED SIGNATURE
 
ADDRESS:______________________________________         Title_______________________________________________

______________________________________________         Name________________________________________________
                                      ZIP CODE                           PLEASE TYPE OR PRINT

Area Code and Tel. No.________________________         Date________________________________________________
</TABLE>
 
 NOTE: DO NOT SEND OLD CAPITAL SECURITIES WITH THIS NOTICE OF GUARANTEED
       DELIVERY. ACTUAL SURRENDER OF OLD CAPITAL SECURITIES MUST BE MADE
       PURSUANT TO, AND BE ACCOMPANIED BY, A PROPERLY COMPLETED AND DULY
       EXECUTED LETTER OF TRANSMITTAL AND ANY OTHER REQUIRED DOCUMENTS.

<PAGE>   1
                                                                   EXHIBIT 99.3




                                                                  April __, 1997


                            EXCHANGE AGENT AGREEMENT



The Chase Manhattan Bank
450 West 33rd Street, 15th Floor
Ne York, New York  10001

Ladies and Gentlemen:

         Firstar Capital Trust I, a Delaware statutory business trust (the
"Issuer") proposes to make an offer (the "Exchange Offer") to exchange up to
$150,000,000 aggregate liquidation amount of its 8.32% Series B Capital
Securities (liquidation amount $1,000 per Capital Security) (the "New Capital
Securities"), which have been registered under the Securities Act of 1933, as
amended (the "Securities Act"), for a like liquidation amount of its
outstanding 8.32% Series A Capital Securities (liquidation amount $1,000 per
Capital Security) (the "Old Capital Securities"), of which $150,000,000
aggregate liquidation amount is outstanding.  The terms and conditions of the
Exchange Offer as currently contemplated are set forth in a prospectus, dated
_________, 1997 (the "Prospectus"), a copy of which is attached to this
Agreement as Attachment A, proposed to be distributed to all record holders of
the Old Capital Securities.  Capitalized terms used herein and not otherwise
defined shall have the meanings assigned to them in the Prospectus.

         The Issuer hereby appoints The Chase Manhattan Bank to act as exchange
agent (the "Exchange Agent") in connection with the Exchange Offer.  References
hereinafter to "you" shall refer to The Chase Manhattan Bank.

         The Exchange Offer is expected to be commenced by the Issuer on or
about _____________, 1997.  The Letter of Transmittal accompanying the
Prospectus is to be used by the holders of the Old Capital Securities to accept
the Exchange Offer, and contains certain instructions with respect to the
Exchange Offer.
<PAGE>   2


         The Exchange Offer shall expire at 5:00 p.m., New York City time, on
March __, 1997 or on such later date or time to which the Issuer or Firstar
Corporation (the "Company") may extend the Exchange Offer (the "Expiration
Date").  Subject to the terms and conditions set forth in the Prospectus, the
Issuer and the Company expressly reserve the right to extend the Exchange Offer
from time to time and may extend the Exchange Offer by giving oral (promptly
confirmed in writing) or written notice to you no later than 9:00 a.m., New
York City time, on the next business day after the previously scheduled
Expiration Date.

         The Issuer and the Company expressly reserve the right to amend or
terminate the Exchange Offer, and not to accept for exchange any Old Capital
Securities not theretofore accepted for exchange, upon the occurrence of any of
the conditions of the Exchange Offer specified in the Prospectus under the
caption "Conditions to the Exchange Offer."  The Issuer or the Company will
give oral (promptly confirmed in writing) or written notice of any amendment,
termination or nonacceptance to you as promptly as practicable.

         In carrying out your duties as Exchange Agent, you are to act in
accordance with the following instructions:

         1.      You will perform such duties and only such duties as are
specifically set forth in the section of the Prospectus captioned "The Exchange
Offer" and as specifically set forth herein and such duties which are
necessarily incidental thereto; provided, however, that in no way will your
general duty to act in good faith be discharged by the foregoing.

         2.      You will establish an account with respect to the Old Capital
Securities at The Depository Trust Company (the "Book-Entry Transfer Facility")
for purposes of the Exchange Offer within two business days after the date of
the Prospectus or, if you already have established an account with the
Book-Entry Transfer Facility suitable for the Exchange Offer, you will identify
such pre-existing account to be used in the Exchange Offer, and any financial
institution that is a participant in the Book-Entry Transfer Facility's systems
may make book- entry delivery of the Old Capital Securities by causing the
Book-Entry Transfer Facility to



                                      2

<PAGE>   3

transfer such Old Capital Securities into your account in accordance with the
Book-Entry Transfer Facility's procedure for such transfer.

         3.      You are to examine each of the Letters of Transmittal,
certificates for Old Capital Securities and confirmations of book-entry
transfers into your account at the Book-Entry Transfer Facility and any Agent's
Message or other documents delivered or mailed to you by or for holders of the
Old Capital Securities to ascertain whether:  (i) the Letters of Transmittal
and any such other documents are duly executed and properly completed in
accordance with instructions set forth therein and (ii) the Old Capital
Securities have otherwise been properly tendered.  In each case where the
Letter of Transmittal or any other document has been improperly completed or
executed or any of the certificates for Old Capital Securities are not in
proper form for transfer or some other irregularity in connection with the
acceptance of the Exchange Offer exists, you will endeavor to inform the
presenters of the need for fulfillment of all requirements and to take any
other action as may be necessary or advisable to cause such irregularity to be
corrected.

         4.      With the approval of the Issuer or the Chairman of the Board,
the Chief Executive Officer, the Chief Financial Officer or the Secretary of
the Company (such approval, if given orally, to be confirmed in writing) or any
other party designated by the Issuer or such officer of the Company in writing,
you are authorized to waive any irregularities in connection with any tender of
Old Capital Securities pursuant to the Exchange Offer.

         5.      Tenders of Old Capital Securities may be made only as set
forth in the section of the Prospectus captioned "The Exchange Offer --
Procedures for Tendering Old Capital Securities" or in the Letter of    
Transmittal and Old Capital Securities shall be considered properly tendered to
you only when tendered in accordance with the procedures set forth therein.

         Notwithstanding the provisions of this paragraph 5, Old Capital
Securities which the Issuer or any other party designated by the Issuer in
writing shall approve as having been properly tendered shall be considered to
be properly 



                                      3
<PAGE>   4

tendered (such approval, if given orally, shall be confirmed in
writing).

         6.      You shall advise the Issuer with respect to any Old Capital
Securities delivered subsequent to the Expiration Date and accept its
instructions with respect to disposition of such Old Capital Securities.

         7.      You shall accept tenders:

                 (a)      in cases where the Old Capital Securities are
registered in two or more names only if signed by all named holders;

                 (b)      in cases where the signing person (as indicated on
the Letter of Transmittal) is acting in a fiduciary or a representative
capacity only when proper evidence of his or her authority to so act is
submitted; and

                 (c)      from persons other than the registered holder of Old
Capital Securities provided that customary transfer requirements, including any
applicable transfer taxes, are fulfilled.

         You shall accept partial tenders of Old Capital Securities where so
indicated and as permitted in the Letter of Transmittal and deliver
certificates for Old Capital Securities to the transfer agent for split-up and
return any untendered Old Capital Securities to the holder (or to such other
person as may be designated in the Letter of Transmittal) as promptly as
practicable after expiration or termination of the Exchange Offer.

1.  Upon satisfaction or waiver of all of the conditions to the
Exchange Offer, the Issuer will notify you (such notice if given orally, to be
promptly confirmed in writing) of the Issuer's acceptance, promptly after the
Expiration Date, of all Old Capital Securities properly tendered and you, on
behalf of the Issuer, will exchange such Old Capital Securities for New Capital
Securities and cause such Old Capital Securities to be canceled.  Delivery of
New Capital Securities will be made on behalf of the Issuer by you at the rate
of $1,000 liquidation amount of New Capital Securities for



                                      4

<PAGE>   5

each $1,000 liquidation amount of Old Capital Securities tendered promptly
after notice (such notice if given orally, to be promptly confirmed in writing)
of acceptance of said Old Capital Securities by the Issuer; provided, however,
that in all cases, Old Capital Securities tendered pursuant to the Exchange
Offer will be exchanged only after timely receipt by you of certificates for
such Old Capital Securities (or confirmation of book-entry transfer into your
account at the Book-Entry Transfer Facility), a properly completed and duly
executed Letter of Transmittal (or facsimile thereof) with any required
signature guarantees (or in lieu thereof an Agent's Message) and any other
required document.  You shall issue New Capital Securities only in
denominations of $1,000 or any integral multiple thereof.

         2.      Tenders pursuant to the Exchange Offer are irrevocable, except
that, subject to the terms and upon the conditions set forth in the Prospectus
and the Letter of Transmittal, Old Capital Securities tendered pursuant to the
Exchange Offer may be withdrawn at any time on or prior to the Expiration Date.

         3.      The Company and the Issuer shall not be required to exchange
any Old Capital Securities tendered if any of the conditions set forth in the
Exchange Offer are not met.  Notice of any decision by the Company and the
Issuer not to exchange any Old Capital Securities tendered shall be given (such
notice, if given orally, shall be promptly confirmed in writing) by the Company
or the Issuer to you.

         4.      If, pursuant to the Exchange Offer, the Issuer does not accept
for exchange all or part of the Old Capital Securities tendered because of an
invalid tender, the occurrence of certain other events set forth in the
Prospectus under the caption "The Exchange Offer -- Conditions to the Exchange
Offer" or otherwise, you shall as soon as practicable after the expiration or
termination of the Exchange Offer return those certificates for unaccepted Old
Capital Securities (or effect the appropriate book-entry transfer of the
unaccepted Old Capital Securities), and return any related required documents
and the Letters of Transmittal relating thereto that are in your possession, to
the persons who deposited them.



                                      5

<PAGE>   6


         5.      All certificates for reissued Old Capital Securities or for
unaccepted Old Capital Securities shall be forwarded by (a) first- class mail,
return receipt requested, under a blanket surety bond protecting you, the
Issuer and the Company from loss or liability arising out of the non-receipt or
non-delivery of such certificates or (b) by registered mail insured separately
for the replacement value of such certificates.

         6.      You are not authorized to pay or offer to pay any concessions,
commissions or solicitation fees to any broker, dealer, bank or other persons
or to engage or utilize any person to solicit tenders.

         7.      As Exchange Agent hereunder you:

         (a)     will be regarded as making no representations and having no
responsibilities as to the validity, sufficiency, value or genuineness of Old
Capital Securities, and will not be required to and will make no representation
as to the validity, value or genuineness of the Exchange Offer; provided,
however, that in no way will your general duty to act in good faith be
discharged by the foregoing;

         (b)     shall not be obligated to take any legal action hereunder
which might in your reasonable judgment involve any expense or liability,
unless you shall have been furnished with reasonable indemnity;

         (c)     shall not be liable to the Company or the Issuer for any
action taken or omitted by you, or any action suffered by you to be taken or
omitted, without negligence, misconduct or bad faith on your part, by reason of
or as a result of the administration of your duties hereunder in accordance
with the terms and conditions of this Agreement or by reason of your compliance
with the instructions set forth herein or with any written or oral instructions
delivered to you pursuant hereto, and may reasonably rely on and shall be
protected in acting in good faith in reliance upon any certificate, instrument,
opinion, notice, letter, facsimile or other document or security delivered to
you and reasonably believed by you to be genuine and to have been signed by the
proper party or parties;



                                      6

<PAGE>   7


         (d)     may reasonably act upon any tender, statement, request,
comment, agreement or other instrument whatsoever not only as to its due
execution and validity and the effectiveness of its provisions, but also as to
the truth and accuracy of any information contained therein, which you shall in
good faith reasonably believe to be genuine or to have been signed or
represented by a proper person or persons;

         (e)     may rely on and shall be protected in acting upon written or
oral instructions from the Issuer or any officer of the Company with respect to
the Exchange Offer;

         (f)     shall not advise any person tendering Old Capital Securities
pursuant to the Exchange Offer as to the wisdom of making such tender or as to
the market value or decline or appreciation in market value of any Old Capital
Securities; and

         (g)     may consult with your counsel with respect to any questions
relating to your duties and responsibilities and the written opinion of such
counsel shall be full and complete authorization and protection in respect of
any action taken, suffered or omitted by you hereunder in good faith and in
accordance with such written opinion of such counsel.

1.  You shall take such action as may from time to time be
requested by the Company, the Issuer or their counsel (and such other action as
you may reasonably deem appropriate) to furnish copies of the Prospectus,
Letter of Transmittal and the Notice of Guaranteed Delivery, or such other
forms as may be approved from time to time by the Company or the Issuer, to all
persons requesting such documents and to accept and comply with telephone
requests for information relating to the Exchange Offer, provided that such
information shall relate only to the procedures for accepting (or withdrawing
from) the Exchange Offer.  The Company or the Issuer will furnish you with
copies of such documents at your request.  All other requests for information
relating to the Exchange Offer shall be directed to the Secretary of the
Company at: 777 East Wisconsin Avenue, Milwaukee, Wisconsin 53201.



                                      7

<PAGE>   8


         2.      You shall advise by facsimile transmission or telephone, and
promptly thereafter confirm in writing to the Issuer, the Company and Brown &
Wood LLP, counsel for the Company and the Issuer, and such other person or
persons as they may request, daily, and more frequently, if reasonably
requested, up to and including the Expiration Date, as to the principal amount
of the Old Capital Securities which have been tendered pursuant to the Exchange
Offer and the items received by you pursuant to this Agreement, separately
reporting and, given cumulative totals to the items properly received and items
improperly received and items covered by Notices of Guaranteed Delivery.  In
addition, you will also inform, and cooperate in making available to, the
Company and the Issuer or any such other person or persons as the Company or
the Issuer request from time to time prior to the Expiration Date of such other
information as they, or he reasonably requests.  Such cooperation shall
include, without limitation, the granting by you to the Company, the Issuer and
such person as the Company or the Issuer may request of access to those persons
on your staff who are responsible for receiving tenders, in order to ensure
that immediately prior to the Expiration Date, the Company and the Issuer shall
have received information in sufficient detail to enable them to decide whether
to extend the Exchange Offer.  You shall prepare a list of persons who failed
to tender or whose tenders were not accepted and the aggregate principal amount
of Old Capital Securities not tendered or Old Capital Securities not accepted
and deliver said list to the Company and the Issuer at least seven days prior
to the Expiration Date.  You shall also prepare a final list of all persons
whose tenders were accepted, the aggregate principal amount of Old Capital
Securities tendered and the aggregate principal amount of Old Capital
Securities accepted and deliver said list to the Company.

         3.      Letters of Transmittal and Notices of Guaranteed Delivery
shall be stamped by you as to the date and the time of receipt thereof and
shall be preserved by you for a period of time at least equal to the period of
time you preserve other records pertaining to the transfer of securities.  You
shall dispose of unused Letters of Transmittal and other surplus materials by
returning them to the Company.



                                      8

<PAGE>   9


         4.      For services rendered as Exchange Agent hereunder you shall be
entitled to a fee of $5,000 and you shall be entitled to reimbursement of your
expenses (including fees and expenses of your counsel, which fees are expected
under normal circumstances to be not in excess of $5,000) incurred in
connection with the Exchange Offer.  The obligations under this Section 18
shall constitute joint and several obligations of the Issuer and the Company.

         5.      You hereby acknowledge receipt of the Prospectus and the
Letter of Transmittal attached hereto and further acknowledge that you have
examined each of them to the extent necessary to perform your obligations
hereunder.  Any inconsistency between this Agreement, on the one hand, and the
Prospectus and the Letter of Transmittal (as they may be amended from time to
time), on the other hand, shall be resolved in favor of the latter two
documents, except with respect to the duties, liabilities and indemnification
of you as Exchange Agent, which shall be controlled by this Agreement.

         6.      The Company and the Issuer jointly and severally agree to
indemnify and hold you harmless in your capacity as Exchange Agent hereunder
against any liability, cost or expense, including reasonable attorney's fees,
arising out of or in connection with the acceptance or administration of your
duties hereunder, including, without limitation, in connection with any act,
omission, delay or refusal made by you in reasonable reliance upon any
signature, endorsement, assignment, certificate, order, request, notice,
instruction or other instrument or document reasonably believed by you to be
valid, genuine and sufficient and in accepting any tender or effecting any
transfer of Old Capital Securities reasonably believed by you in good faith to
be authorized, and in delaying or refusing in good faith to accept any tenders
or effect any transfer of Old Capital Securities; provided, however, that the
Company and the Issuer shall not be liable for indemnification or otherwise for
any loss, liability, cost or expense to the extent arising out of your
negligence, willful breach of this Agreement, willful misconduct or bad faith.
In no case shall the Company and the Issuer be liable under this indemnity with
respect to any claim against you unless the Company and the Issuer shall be
notified by you, by letter or cable or by facsimile confirmed by letter, of the
written assertion of a claim



                                      9

<PAGE>   10

against you or of any other action commenced against you, promptly after you
shall have received any such written assertion or commencement of action.  The
Company and the Issuer shall be entitled to participate at their own expense in
the defense of any such claim or other action, and, if the Company and the
Issuer so elect, the Company and the Issuer shall assume the defense of any
suit brought to enforce any such claim.  In the event that the Company and the
Issuer shall assume the defense of any such suit, the Company and the Issuer
shall not be liable for the fees and expenses of any additional counsel
thereafter retained by you so long as the Company and the Issuer shall retain
counsel reasonably satisfactory to you to defend such suit.  You shall not
compromise or settle any such action or claim without the consent of the
Company and the Issuer.

         7.      This Agreement and your appointment as Exchange Agent
hereunder shall be construed and enforced in accordance with the laws of the
State of New York applicable to agreements made and to be performed entirely
within such state, and without regard to conflicts of law principles, and shall
inure to the benefit of, and the obligations created hereby shall be binding
upon, the successors and assigns of each of the parties hereto.

         8.      This Agreement may be executed in two or more counterparts,
each of which shall be deemed to be an original and all of which taken together
constitute one and the same agreement.

         9.      In case any provision of this Agreement 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.

         10.     This Agreement shall not be deemed or construed to be
modified, amended, rescinded, canceled or waived, in whole or in part, except
by a written instrument signed by a duly authorized representative of the party
to be charged.  This Agreement may not be modified orally.

         11.     Unless otherwise provided herein, all notices, requests and
other communications to any party hereunder shall be in writing



                                     10

<PAGE>   11

(including facsimile) and shall be given to such party, addressed to it, at its
address or telecopy number set forth below:

         If to the Company or the Issuer:

         777 East Wisconsin Avenue
         Milwaukee, Wisconsin  53201

         Facsimile:  (414)765-6111
         Attention:  Secretary

         With a copy to:

         Brown & Wood LLP
         One World Trade Center
         New York, New York  10048

         Facsimile:  (212)839-5599
         Attention:  Mitchell Kleinman, Esq.

         If to the Exchange Agent:

         The Chase Manhattan Bank
         450 West 33rd Street, 15th Floor
         New York, New York  10001

         Facsimile:  (212) 946-8159/60
         Attention:  Patricia Morabito

         12.     Unless terminated earlier by the parties hereto, this
Agreement shall terminate 90 days following the Expiration Date.
Notwithstanding the foregoing, Paragraphs 18 and 20 shall survive the
termination of this Agreement.  Except as provided in Section 17, upon any
termination of this Agreement, you shall promptly deliver to the Company any
funds or property (including, without limitation, Letters of Transmittal and
any other documents relating to the Exchange Offer) then held by you as
Exchange Agent under this Agreement.

         13.     This Agreement shall be binding and effective as of the date
hereof.



                                     11

<PAGE>   12




                                     12
<PAGE>   13



         Please acknowledge receipt of this Agreement and confirm the
arrangements herein provided by signing and returning the enclosed copy.



                                        FIRSTAR CORPORATION


                                        By: _____________________________
                                            Name:
                                            Title:



                                        FIRSTAR CAPITAL TRUST I


                                        By: _____________________________
                                            Name:
                                            Title:




Accepted as of the date
first above written:

The Chase Manhattan Bank


By:_________________________________
   Name:
   Title:




                                     13


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