1


                                                                    EXHIBIT 10.4


                            STOCK PURCHASE AGREEMENT

                                    BETWEEN

                          GENERAL BINDING CORPORATION

                                      AND

                             DR.  U. WOLFENSBERGER


                                 Table of Content

     
1        Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . .   2 

2        Sale and Purchase of Shares, Consideration . . . . . . . . . . . .   3

2.1      Sale and Purchase of Shares  . . . . . . . . . . . . . . . . . . .   3

2.2      Purchase Price . . . . . . . . . . . . . . . . . . . . . . . . . .   3

2.3      Financial Statements; Audit of the Company's 1997

         Financial Statements . . . . . . . . . . . ... . . . . . . . . . .   3

2.4      Payment of the Purchase Price; Escrow of the Holdback  . . . . . .   4

2.5      Procedures for Final Determination of Net Working

         Capital Amount and Funded Debt at Closing  . . . . . . . . . . . .   5

2.6      Net Working Capital Amount and Funded Debt Amount

         Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . .     6

2.7      The EBITDA Adjustment  . . . . . . . . . . . . . . . . . . . . .     7

3        Closing  . . . . . . . . . . . . . . . . . . . . . . . . . . . .     8

3.1      Closing Date of Transaction  . . . . . . . . . . . . . . . . . .     8

3.2      Conditions Precedent to Closing  . . . . . . . . . . . . . . . .     8

3.3      Transfer of Shares and Payment of Purchase Price . . . . . . . .     9

3.4      Right to Rescind the Agreement . . . . . . . . . . . . . . . . .     9

4        Representations and Warranties of Seller . . . . . . . . . . . .    10

4.1      Seller's Power and Authority . . . . . . . . . . . . . . . . . .    10

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                                     - 2 -


     
4.2      Organization and Qualification . . . . . . . . . . . . . . . . .   11

4.3      Capital Structure  . . . . . . . . . . . . . . . . . . . . . . .   11  

4.4      Ownership  . . . . . . . . . . . . . . . . . . . . . . . . . . .   11

4.5      Consolidated Financial Statement . . . . . . . . . . . . . . . .   11

4.6      Accounts Receivable  . . . . . . . . . . . . . . . . . . . . . .   12

4.7      Title to Assets  . . . . . . . . . . . . . . . . . . . . . . . .   12

4.8      Condition of Buildings, Machinery and Equipment  . . . . . . . .   12

4.9      Inventory  . . . . . . . . . . . . . . . . . . . . . . . . . . .   13

4.10     Absence of Adverse Changes . . . . . . . . . . . . . . . . . . .   13

4.11     Permits and Authorities  . . . . . . . . . . . . . . . . . . . .   14

4.12     Claims and Litigation  . . . . . . . . . . . . . . . . . . . . .   14

4.13     Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14

4.14     Agreements with Third Parties  . . . . . . . . . . . . . . . . .   14

4.15     Intellectual Property/Know-how . . . . . . . . . . . . . . . . .   14

4.16     Pensions/Employees . . . . . . . . . . . . . . . . . . . . . . .   15

4.17     Compliance with the Law  . . . . . . . . . . . . . . . . . . . .   15

4.18     Environmental Matters  . . . . . . . . . . . . . . . . . . . . .   15

4.19     Product Liability/Warranty Claims  . . . . . . . . . . . . . . .   15

4.20     Real Estate  . . . . . . . . . . . . . . . . . . . . . . . . . .   16

4.21     Leases . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   16

4.22     Brokers' Fees  . . . . . . . . . . . . . . . . . . . . . . . . .   16

4.23     Seller's Costs . . . . . . . . . . . . . . . . . . . . . . . . .   16

4.24     No Further Warranties  . . . . . . . . . . . . . . . . . . . . .   16

5        Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . .   16

5.1      Term of Warranties and Representations . . . . . . . . . . . . .   16


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                                     - 3 -

     
5.2      Notification and Arbitration . . . . . . . . . . . . . . . . . .   17

5.3      Damages  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   17

5.4      Surety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   17

5.5      Limitations  . . . . . . . . . . . . . . . . . . . . . . . . . .   17 
         5.5.1   De Minimis . . . . . . . . . . . . . . . . . . . . . . .   17 
         5.5.2   Maximum Amount . . . . . . . . . . . . . . . . . . . . .   18 
         5.5.3   Exempt Representations and Warranties  . . . . . . . . .   18 
         5.5.4   Exclusion of Liability . . . . . . . . . . . . . . . . .   18

5.6      Procedure with Third Parties and Authorities . . . . . . . . . .   19

6        Resignations of Directors and Auditors . . . . . . . . . . . . .   19

7        Covenants  . . . . . . . . . . . . . . . . . . . . . . . . . . .   19

7.1      Covenant not to Compete  . . . . . . . . . . . . . . . . . . . .   19

7.2      Conduct of Business  . . . . . . . . . . . . . . . . . . . . . .   20

7.3      Termination of Agreements between the Companies

         and Seller . . . . . . . . . . . . . . . . . . . . . . . . . . .   21

7.4      Information of Employees . . . . . . . . . . . . . . . . . . . .   21

7.5      Employment of Seller . . . . . . . . . . . . . . . . . . . . . .   22

7.6      Seller's Cooperation . . . . . . . . . . . . . . . . . . . . . .   22

7.7      Transition Assistance  . . . . . . . . . . . . . . . . . . . . .   22

7.8      Environmental Issues . . . . . . . . . . . . . . . . . . . . . .   22

8        Transfer of Management Responsibility  . . . . . . . . . . . . .   23

9        Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   23

10       Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . .   24

10.1     Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24

10.2     Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24

10.3     No Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . .   24

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                                     - 4 -


                                                                    
10.4     Entire Agreement . . . . . . . . . . . . . . . . . . . . . . . .  25

10.5     Binding on Successors  . . . . . . . . . . . . . . . . . . . . .  25

10.6     Announcements  . . . . . . . . . . . . . . . . . . . . . . . . .  25

10.7     Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . .  25

11       Governing Law and Arbitration  . . . . . . . . . . . . . . . . .  25

11.1     Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . .  25

11.2     Arbitration  . . . . . . . . . . . . . . . . . . . . . . . . . .  25

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                                     - 1 -

                            STOCK PURCHASE AGREEMENT
                                    between
Dr. Ueli Wolfensberger, Seestrasse 79, CH-8803 Ruschlikon  (Switzerland)
                                                                        "Seller"
                                      and

General Binding Corporation,  One GBC Plaza, Northbrook, Illinois 60062 (USA)
                                                                     "Purchaser"

WHEREAS, IBICO, Seestrasse 346, CH 8038 Zurich (Switzerland) (hereinafter
referred to as the "Company") has a share capital of CHF 2,000,000.--, divided
into 400 bearer shares with a nominal value of CHF 5,000.-- each;

WHEREAS,  Seller owns all the shares of the Company and/or has the right to
transfer full ownership in such shares;

WHEREAS,  Purchaser intends to purchase all the shares of the  Company and
Seller intends to sell or cause to be sold to Purchaser all of  the Shares of
the Company;

WHEREAS,  Purchaser, in a due diligence review,  has analyzed the Due Diligence
Material;

NOW, THEREFORE, the Parties have come to the following agreement.
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                                     - 2 -

                                   ARTICLE 1
                                  DEFINITIONS


As used in this Agreement, the following terms have the following meaning
unless the context requires otherwise:

"AGREEMENT" shall mean this Agreement as amended from time to time pursuant to
art. 10.4 of this Agreement.

"CHF" shall mean Swiss Francs, being the lawful currency of Switzerland.

"CLOSING" shall mean the consummation of the transactions described in art. 2
of this Agreement in accordance with art.  3 of this Agreement.

"CLOSING DATE" shall mean the date defined in art. 3.1 of this Agreement.

"COMPANIES" shall mean the Company and the Subsidiaries.

"COMPANY" shall mean IBICO AG, Seestrasse 346, 8038 Zurich (Switzerland).

"DUE DILIGENCE MATERIAL" shall mean the material set forth in Schedule 1.1
which has been submitted to Purchaser for the due diligence review.

"PARTY" OR "PARTIES" shall mean one or both parties to this Agreement.

"PURCHASE PRICE" shall mean the purchase price defined in art. 2.2 of this
Agreement.

"SELLER'S KNOWLEDGE" shall mean the knowledge of Seller after due and diligent
consultation with Mr. Balmer, Mr.  Houthuys, Mr. Loibl, Mr. Baumann, Mr.
Frohlich, Mr. van den Nieuwenhof, Mr. Luety, Mr. Hedman and Mr. O.
Wolfensberger.

"SHARES" shall mean 400 bearer shares of the Company with a nominal value of
CHF 5,000.-- each.

"SUBSIDIARIES" shall mean the companies set forth in Schedule 1. 2.

"SURETY" shall mean the surety ("Solidarburgschaft") as defined in art. 5.4 of
this Agreement.
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                                     - 3 -

"TAXES" shall mean all tax liabilities whether actual or deferred including but
not limited to those measured by or referred to as income taxes, sales taxes,
use taxes, VAT, gross receipts taxes, any turnover or cost-related taxes,
franchise taxes, profits taxes, license taxes, withholding taxes, stamp duties
and any other transfer duties, payroll taxes, social security taxes and
contributions, ad valorem taxes, employment taxes, excise taxes, severance
taxes, occupation taxes, premium taxes, windfall profit taxes, real estate
capital gain taxes, real estate transfer taxes and property taxes and all other
levies, customs, taxes and public duties, assessments or charges of any kind,
together with any interest and any penalties, additions to tax or additional
amounts imposed by any governmental authority.

"TAX RETURN" shall mean any return, report or statement required to be filed
with any governmental authority with respect to Taxes.

                                   ARTICLE 2
                          SALE AND PURCHASE OF SHARES,
                                 CONSIDERATION

2.1      SALE AND PURCHASE OF SHARES.  Subject to the terms and conditions
         defined herein, Seller hereby agrees to sell to Purchaser and
         Purchaser agrees to buy from Seller the Shares, i.e. 400 bearer shares
         of the Company with a nominal value of CHF 5,000.-- each.

2.2      PURCHASE PRICE.  The aggregate purchase price for the Shares (the
         "Purchase Price") paid by Purchaser to the Seller (which shall be
         subject to adjustment pursuant to this art. 2) shall be equal to CHF
         188,400,000.-- (Swiss Francs One Hundred Eighty eight Million four
         hundred thousand) less the sum of (i) the amount of the Company's
         Funded Debt Amount (as defined below) at Closing, and (ii) the amount
         by which the Company's Net Working Capital Amount (as defined below)
         at Closing, as determined in accordance with art. 2.5 and 2.6 below,
         is less than CHF 59,000,000.-- and (iii) plus or minus the EBITDA
         adjustment as defined in art. 2.7 of this Agreement.

2.3       FINANCIAL STATEMENTS; AUDIT OF THE COMPANY'S 1997 FINANCIAL
         STATEMENTS.  Seller shall cause the company's unaudited consolidated
         financial statements for the nine (9) months ended September 30, 1997
         to be prepared on a basis consistent with the accounting principles
         employed in the preparation of the Company's consolidated financial
         statements for its 1996 fiscal year and deliver such
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                                     - 4 -

         statements to Purchaser by November 20, 1997.  Further, Seller shall
         provide Purchaser by the 20th day of each month all monthly reports
         and other information concerning the Companies and their operations
         for the preceding month.  Seller shall also cause the consolidated
         financial statements of the Company to be audited by KPMG Peat Marwick
         for the twelve (12) month period ended December 31, 1997 (the "1997
         Audit").  Such audit shall be prepared using the accounting principles
         employed in the audit of the 1996 consolidated financial statements of
         the Company.  The 1997 Audit shall be prepared at the Company's cost
         and expense and shall be disclosed to Purchaser upon receipt by
         Seller.

2.4      PAYMENT OF THE PURCHASE PRICE; ESCROW OF THE HOLDBACK

         a)      Four (4) business days prior to the Closing, the Seller shall
                 notify Purchaser in writing of its good faith estimate of (i)
                 the Net Working Capital Amount as of the Closing Date (the
                 "Estimated Net Working Capital Amount"), (ii) the Company's
                 estimated consolidated Funded Debt Amount at Closing (the
                 "Estimated Funded Debt Amount") and (iii) the EBITDA
                 Adjustment (the "Estimated EBITDA Adjustment") .  The
                 Estimated Purchase Price shall be equal to CHF 188,400,000.--
                 less the sum of (i) the Estimated Funded Debt Amount and (ii)
                 the amount, if any, by which CHF 59,000,000.-- exceeds the
                 Estimated Net Working Capital Amount plus or minus, as the
                 case may be, (iii) the Estimated EBITDA Adjustment.

         b)      At the Closing, Purchaser shall pay the Estimated Purchase
                 Price, less a holdback (the "Escrow Holdback") of CHF
                 8,000,000.-- (such amount being paid at Closing is hereinafter
                 referred to as the "Closing Payment") by wire transfer to an
                 account or accounts designated by the Seller at least two (2)
                 business days prior to the Closing.  At Closing, the Escrow
                 Holdback shall be deposited with Seller's law firm, Baker &
                 McKenzie (the "Escrow Agent")  in escrow pending disposition
                 as provided in the Escrow Instructions attached hereto as
                 Schedule 2.4. Except as set forth in art. 2.4 c) , the
                 economic benefit of such Escrow Holdback shall be for the
                 account of the Seller with all earnings thereon accruing for
                 his benefit.

         c)      Upon the final determination of the Net Working Capital Amount
                 and the Funded Debt Amount at Closing pursuant to art. 2.5
                 below and the EBITDA Adjustment pursuant to art. 2.7 below,
                 the Purchaser and Seller shall
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                                     - 5 -

         recompute the Purchase Price based upon the actual net Working Capital
         Amount and actual Funded Debt amount at Closing and the actual EBITDA
         Adjustment, as finally determined.  If the Purchase Price as so
         determined is greater than the Closing Payment but lower than the
         Estimated Purchase Price, within three (3) business days after such
         final determination the Parties shall cause the Escrow Agent to pay to
         Seller the amount by which the Purchase Price exceeds the Closing
         Payment, together with a pro-rata share of the earnings on the Escrow
         Holdback and to pay to Purchaser the amount by which the Estimated
         Purchase Price exceeds the Purchase Price together with a pro-rata
         share of the earnings on the Escrow Holdback.  If the Purchase Price
         as so determined is greater than the Estimated Purchase Price within
         three (3) business days after such final determination the Parties
         shall cause the Escrow Agent to pay to Seller the Escrow Holdback plus
         earnings thereon and Purchaser shall pay to Seller the difference
         between Purchase Price and Estimated Purchase Price plus 5% interest
         (p.a.) on such additional payment (interest to be calculated from the
         Closing Date until the final determination of the Purchase Price) . If
         the Purchase Price as so determined is less than the Closing Payment
         within three (3) business days after such final determination, the
         Parties shall cause the Escrow Agent to pay to Purchaser the Escrow
         Holdback plus earnings thereon and Seller shall pay to Purchaser the
         amount by which the Closing Payment exceeds the Purchase Price
         together with 5% interest (p.a.) on the sum repaid (interest to be
         calculated from the Closing Date until the final determination of the
         Purchase Price) . Final determination and payment of the Purchase
         Price shall be made without regard to any claims or offsets that
         either Party may have asserted against the other.

2.5      PROCEDURES FOR FINAL DETERMINATION OF NET WORKING CAPITAL AMOUNT AND
         FUNDED DEBT AT CLOSING.  Within forty-five (45) business days after
         the Closing Date, Purchaser shall prepare and deliver to the Seller at
         Purchaser's expense a consolidated balance sheet of the Company for
         the Seller as of the opening of business on the Closing Date, audited
         by Purchaser's independent certified public accountant, together with
         a statement setting forth Purchaser's determination of the Net Working
         Capital Amount and the Funded Debt Amount of the Company at Closing.
         Within twenty-one (21) days after receipt of such items, the Seller
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                                     - 6 -

         shall deliver to Purchaser a detailed written statement describing its
         objections, if any, to such balance sheet and determination of the Net
         Working Capital Amount and the Funded - Debt Amount at Closing.  If
         the Seller does not raise any objections within the twenty-one (21)
         day period, the audited balance sheet and Purchaser's determination of
         the net Working Capital Amount and the Funded Debt Amount at Closing
         shall become final and binding upon all parties.  Upon request by the
         Seller at any time after receipt of the aforementioned balance sheet
         and statement, Purchaser shall make available to the Seller and its
         accountants and other representatives the work papers used in
         preparing the balance sheet and in determining Purchaser's calculation
         of the Net Working Capital Amount and the Funded Debt Amount at
         Closing and such other documents as the Seller may reasonably request
         in connection with its review of the Net Working Capital Amount and
         the Funded Debt Amount at Closing.  If the Seller raises any
         objections, Purchaser and Seller shall use reasonable efforts to
         resolve any such disputes.  If a final resolution is not obtained
         within twenty-one (21) days after the Seller shall have submitted its
         objections to Purchaser, any remaining disputes shall be resolved by
         Deloitte Touche Tomahtsu, whose decision regarding the determination
         of Net Working Capital Amount and Funded Debt at Closing shall be
         final and binding upon the Parties as a "Schiedsgutachten".  Each
         Party bears 50% of the costs and fees of Deloitte Touche Tomahtsu.

2.6      NET WORKING CAPITAL AMOUNT AND FUNDED DEBT AMOUNT DEFINITIONS.  "Net
         Working Capital Amount" shall be determined as of opening of business
         on the Closing Date and shall be equal to the combined current assets
         of the Companies (excluding cash and cash equivalents) less the
         combined current liabilities of the Companies (excluding from current
         liabilities the current portion of any Funded Debt).  The Company's
         Closing Balance Sheet shall be prepared, and the Net Working Capital
         Amount and Funded Debt Amount at Closing shall be determined in a
         manner consistent with those used in preparing the Company's
         consolidated balance sheet as of December 31, 1996 (the "1996 Balance
         Sheet") which is attached hereto as Schedule 4.5 except that any
         balance sheet item reflected on the Company's Closing Balance Sheet
         which was not reflected on the 1996 Balance Sheet shall be determined
         in accordance with generally accepted international accounting
         standards.  "Funded Debt Amount" shall be determined as of opening of
         business on the Closing Date and shall be equal to all interest-
         bearing debt obligations of the Companies, including interest bearing
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                                     - 7 -

         obligations for borrowed money and US purchase-money mortgages and
         capitalized lease obligations (i.e. lease obligations which according
         to the accounting principles set forth in Schedule 4.5.a have to be
         capitalized) whether or not normally set forth on the Companies'
         balance sheets (but exclusive of inter-Companies debt) less the amount
         of cash and cash equivalents excluded in the determination of the Net
         Working Capital Amount.

2.7      THE EBITDA ADJUSTMENT.  If EBITDA in the year 1997 deviates from CHF
         15,600,000.-- by greater than CHF 800,000.(plus or minus), the
         Purchase Price will be adjusted in accordance with the following
         formula:

             Adjustment = 2 x (actual EBITDA - CHF 15,600,000.--).

         EBITDA is equal to the Company's consolidated Operating Profit (before
         interest and taxes) plus depreciation and amortization and the costs
         identified in art. 10.1 herein in excess of CHF 594,000.-- and without
         regard to (a) any losses which are covered by a warranty contained in
         art. 4 of this Agreement and (b) any non- operational expenses
         incurred through the restructuring of IBICO, Inc. ("Restructure
         Expense").  EBITDA is calculated by the Seller on the basis of the
         1997 audited Financial Statement prepared in accordance with art.  2.3
         of this Agreement except that (i) foreign currencies (currencies other
         than CHF) shall be expressed in CHF utilizing the exchange rates (the
         "Forecast 2 Rates") used by the Company in the preparation of the
         Management Profit and Loss Account and identified by IBICO Control /
         Finance as PL51297, 15-09-97, 19:12 see schedule 2.7 attached) and
         (ii) changes in IAS accounting standards effective after December 31,
         1996 shall be disregarded and the financial results for the year 1997
         and the calculation of the operating Profit (before interest and
         taxes) shall be presented in a format consistent with the 1996 audited
         IAS-consolidated financial statements.  "Restructure Expense" shall be
         limited to those expenses incurred by IBICO, Inc. in connection with
         the termination of certain IBICO, Inc. management personnel, the
         retention or relocation of successors to such personnel, the
         termination of personnel employed in IBICO, Inc.'s Elk Grove office
         and other incidental and consequential expense related to the
         foregoing which totaled USD 1,146,000.-- as of August 31, 1997 and
         which shall not exceed USD 1,200,000.-- for the year ended December
         31, 1997.  Seller shall cause KPMG Fides to issue a statement
         describing the EBITDA and the EBITDA Adjustment and transmit such
         Statement of KPMG Fides together with the 1997 audited statement
         immediately after receipt to Purchaser.  The dispute
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                                     - 8 -

         resolution mechanism described in art. 2.5 above shall also apply to
         the determination of the EBITDA Adjustment.


                                   ARTICLE 3
                                    CLOSING

3.1      CLOSING DATE OF TRANSACTION.  The transaction described in this
         Agreement shall be consummated at the offices of Baker & McKenzie,
         Zollikerstrasse 225, 8008 Zurich, on a date which is 10 days after the
         conditions precedent set forth in art. 3.2 of this Agreement have been
         met but not before January 9, 1998 unless extended pursuant to the
         terms hereof.

3.2      CONDITIONS PRECEDENT TO CLOSING.  The obligation of Purchaser to
         consummate the transactions contemplated by this Agreement is subject
         to the satisfaction of the following conditions on or before the
         Closing Date.

         a)      All governmental filings, authorizations and approvals that
                 are required for the consummation of the transactions
                 contemplated hereby shall have been duly made and obtained on
                 terms and conditions reasonably satisfactory to Purchaser,
                 including all filings required by the Hart-Scott-Rodino
                 Antitrust Improvements Act of 1976 of the United States of
                 America or the EC Merger Regulation as amended or under the
                 law of any other jurisdiction in which Purchaser or Seller
                 does business having authority over the transactions
                 contemplated hereby, and the waiting period, if any, required
                 by such statutes or regulations shall have terminated or
                 expired.

         b)      No proceeding brought by any third party or governmental
                 entity shall be pending or threatened which seeks any
                 injunction, restraining order or other order which would
                 prohibit consummation of the transactions contemplated hereby
                 or materially impair the ability of Purchaser to own and
                 operate the business and the assets of the Company and its
                 Subsidiaries after the Closing Date.

         The Parties shall use all reasonable efforts to take, or cause to be
         taken, and to do, or cause to be done, all things necessary, proper or
         advisable consistent with applicable law to cause the fulfillment on
         or prior to the Closing Date of all of the above conditions,
         including, in
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                                     - 9 -

         particular, making all necessary filings with any applicable
         governmental entity and cooperating with each other in connection with
         such filings and any other responses to governmental entities;
         provided, however, that in no event shall Purchaser be obligated to
         consider, or consummate, any sale, disposition, segregation or other
         arrangement affecting any assets or properties owned by either
         Purchaser or its affiliates, on the one hand, or by the Company and
         its Subsidiaries, on the other hand, on account of the transaction
         contemplated herein, or any other action which would limit the freedom
         of Purchaser and its affiliates to own and operate their business,
         assets and properties as they see fit.  Seller shall assist Purchaser
         free of charge in the pertinent procedures and, in particular, provide
         the necessary information on the Companies for filings to be made by
         Purchaser.

3.3      TRANSFER OF SHARES AND PAYMENT OF PURCHASE PRICE.  On the Closing Date
         Seller shall deliver to Purchaser:

         -       400 bearer shares of the Company with a nominal value of CHF
                 5,000.-- each;

         -       the Surety;

         -       a certificate in form reasonably satisfactory to Purchaser
                 stating that (i) all representations and warranties made by
                 Seller contained in this Agreement are true and correct at and
                 as of the Closing Date, as though the Closing Date was
                 substituted for the date of this Agreement, and (ii) that
                 Seller has performed or complied with all covenants,
                 agreements and conditions required by this Agreement to be
                 performed and satisfied by him on or prior to Closing.

                 At the Closing, Purchaser shall pay the Closing Payment to
                 Seller and CHF 8,000,000.-- to Escrow Agent as provided in
                 art. 2.4(b) of this Agreement and the parties shall take the
                 additional actions called for by art. 2 above to be
                 accomplished on the Closing Date.

3.4      RIGHT TO RESCIND THE AGREEMENT.

         a)      Except in a situation where the Seller may rescind this
                 Agreement due to Purchaser's unwillingness or inability to
                 close the transactions contemplated by this Agreement as a
                 result of the failure to satisfy any condition expressed in
                 art. 3.2 a), or b), which gives
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                                     - 10 -

                 rise to the rescission right of Seller set forth in art. 3.4
                 b) below, Seller may rescind this Agreement, if the Estimated
                 Purchase Price is not paid on the Closing Date to Seller or if
                 the other actions to be taken by Purchaser on or before the
                 Closing Date as provided for in art. 2.4 and art. 3.3 of this
                 Agreement do not occur, provided that all conditions to
                 Purchaser's obligation to perform have been satisfied.  In
                 such case Purchaser shall pay to Seller CHF 4,000,000.--
                 (Swiss francs four million) and compensate Seller for any
                 further damage in excess of such amount caused by the fact
                 that the transaction described in this Agreement has not been
                 consummated: provided, however, such additional compensation
                 shall not exceed twenty percent (20%) of the Purchase Price.

         b)      Seller or Purchaser may rescind this Agreement in the event
                 the Closing does not occur by April 30, 1998, as a result of
                 the failure to satisfy any condition expressed in art. 3.2 a)
                 and b). In such case Purchaser shall pay to Seller CHF
                 7,250,000.-- (Swiss Francs seven millions two hundred fifty
                 thousand) in the form of liquidated damages and this Agreement
                 will forthwith become void and there will be no further
                 obligation or liability on the part of any party hereto or any
                 of their respective directors, officers, employees or
                 stockholders as a result of such rescission.

         c)      Purchaser may rescind this Agreement, if the Shares and the
                 Surety are not remitted to Purchaser on the Closing Date as
                 provided in art. 3.3 of this Agreement.  In such case Seller
                 shall pay to Purchaser CHF 4,000,000.-- (Swiss francs four
                 million) and compensate Purchaser  for any further damage in
                 excess of such amount caused by the fact that the transaction
                 described in this Agreement has not been consummated.


                                   ARTICLE 4
                    REPRESENTATIONS AND WARRANTIES OF SELLER

         Seller represents and warrants on his own behalf and for the Companies
         as of the date of this Agreement as follows:

         4.1     SELLER'S POWER AND AUTHORITY.  Seller has the legal right, and
                 full power, authority and capacity to enter into this
                 Agreement and to carry out his obligations hereunder without
   15
                                     - 11 -

         violating any agreement, legal provision, contract, property rights of
         a third person or obligations under law.

4.2      ORGANIZATION AND QUALIFICATION. The Companies are duly organized and
         validly existing under the laws under which they have been
         incorporated and have full right and authority to own and to operate
         their properties and to engage in the business in which they are now
         engaged. Schedule 4.2 contains the memorandum or articles of
         incorporation of the Companies as in force as of the date hereof.

4.3      CAPITAL STRUCTURE. As of the date hereof , the Companies have the
         capital set forth in Schedule 4.3. No further capital, non-voting
         stock, convertible securities warranties, options, subscription or
         similar rights in the Companies have been or will by the Closing Date
         be created or issued or agreed to be issued.  All the Shares sold
         pursuant to art. 2.1 of this Agreement and all shares of the
         Subsidiaries have been validly issued and fully paid in and are
         non-assessable.

4.4      OWNERSHIP. Seller has full right and capacity to transfer and sell
         complete title to the Shares.  Seller is not a party to any option,
         warrant, purchase right, or other contract or commitment that could
         require Seller to sell, transfer or otherwise dispose of any of the
         Shares.

         Upon the delivery of the Shares provided for in art. 3.3 of this
         Agreement, Purchaser will receive good and valid title to the Shares,
         free and clear of all liens, encumbrances or other rights of third
         parties.

         Seller warrants, furthermore, that the Company owns all of the shares
         of the Subsidiaries as set forth in Schedule 4.4,  free and clear of
         all liens, encumbrances, options, charges, equities and claims arising
         from any privilege, pledge or security arrangement.

4.5      CONSOLIDATED FINANCIAL STATEMENT.  Schedule 4.5 contains the audited
         consolidated balance sheet and the audited consolidated profit and
         loss statement of the Company as of December 31, 1996 (the Financial
         Statement) - This Financial Statements are in accordance with the
         accounting and consolidation principles described in Schedule 4.5a and
         in accordance with such principles show a true and fair view of the
         consolidated financial position of the Company as of December 31, 1996
         and for their respective periods then
   16
                                     - 12 -

         ended and do not understate any liabilities, which have to be reported
         on the financial statements in accordance with the accounting and
         consolidation principles described in Schedule 4.5 a).

         Except as disclosed in the Notes to the Financial Statement set forth
         in Schedule 4.5 and except for intercompany transactions the Companies
         have not issued any guarantees, sureties or entered into similar
         transactions for the benefit of any third parties (excluding
         warranties for goods sold and services rendered as well as minimum
         purchase or sale obligations).

4.6      ACCOUNTS RECEIVABLE.  Except to the extent of the reserve for bad
         debts shown in the Financial Statement and to the extent that accounts
         receivables have been written-off or written-down, all of the accounts
         receivable of the Companies constitute valid receivables, have been
         incurred in the ordinary course of business, are fully collectible in
         the stated amounts and are not subject to any set-off or counterclaim,
         other than set-off for counterclaims which have been recorded as
         liabilities in the Financial Statement set forth in Schedule 4.5 or
         which have come into existence after the date of such Financial
         Statement.

4.7      TITLE TO ASSETS.  The Companies are the owners of all assets of any
         kind reflected in the Financial statement or reflected in the books of
         the Companies as being owned by them as of the respective account
         date, free and clear of any liens, encumbrances, restrictions and
         other rights of any kind, including any right of first refusal
         (financial leases which are recorded as assets on the Financial
         Statement are exempt from such warranty). The Companies have neither
         executed nor authorized the execution of any contract or option for
         the sale, leasing or other use of any kind, of any of its properties
         or assets other than in the ordinary course of their business as
         conducted at the date hereof.

4.8      CONDITION OF BUILDINGS, MACHINERY AND EQUIPMENT.  The Company's and
         each Subsidiary's buildings, machinery, equipment and other tangible
         personal property are - their age properly taken into account - in
         good condition and repair in all material respects, have been
         maintained in accordance with normal industry standards and are usable
         in the ordinary course of business.  The Company or its Subsidiaries
         own or lease under valid leases all buildings,
   17
                                     - 13 -

         machinery, equipment and other tangible assets necessary for the
         conduct of their business.

4.9      INVENTORY.  All inventories consist of a quality and quantity usable
         and salable in the ordinary course of business or have been reserved
         for in accordance with the principles described in Schedule 4.5.
         Inventory is valued using the first-in, fist-out method of valuation.
         Except to the extent it has been reserved for, no inventory is
         obsolete or damaged or includes used, returned or previously leased or
         sold goods.  If the stock of a particular item of finished goods
         (excluding replacement and repair parts) exceeds the projected sales
         for the next 18 months such excess amount shall be considered as
         obsolete.  In such case Purchaser shall transfer such excess stock
         (against payment of warranty claim) to Seller who may sell such stock
         freely.  For raw material and components the excess above 18 months of
         projected sales shall not be treated as obsolete but shall be written
         down to 50% of cost.

4.10     ABSENCE OF ADVERSE CHANGES.  Seller represents and warrants that in
         the period between December 31, 1996, and the date hereof there has
         not been any material adverse change in the business, financial
         condition, operations, or results of operations of the Companies.
         Without limiting the generality of the foregoing, since that date, the
         Companies:

         -       have conducted their business in the ordinary course and have
                 not entered into any material contracts, contract changes or
                 commitments and have not sold, assigned or transferred any
                 tangible or intangible assets other than in the ordinary
                 course of business, unless disclosed in Schedule 4.10;

         -       have not suffered any material damage, destruction or loss by
                 fire or other casualty whether or not covered by insurance
                 unless disclosed in Schedule 4.10;

         -       have not made any declaration or setting aside or payment of
                 any dividend or any other distribution of profit or any direct
                 or indirect redemption, purchase or other acquisition of any
                 quotas or shares of the Companies, other than the payment"of
                 dividends by the Subsidiaries to the Company;

         -       have not increased the total compensation payable to their
                 employees by more than 10% in local currencies (increases
                 based on the existing profit sharing plan
   18
                                     - 14 -

                 are excluded from this limit) and have neither adopted any new
                 profit sharing plan, bonus plan, pension or benefit plan nor
                 changed any existing plans;

         -       the Companies have not committed to any of the foregoing.

4.11     PERMITS AND AUTHORIZATIONS.  The Companies have all the permits and
         authorizations which are necessary to carry on their business.  No
         governmental authority has threatened in writing to terminate any
         permit or authorization.

4.12     CLAIMS AND LITIGATION.  Except as set forth in Schedule 4.12 as of the
         date hereof, there are no actions, suits or proceedings pending or
         threatened in writing against the Companies either in court or before
         any administrative board, agency or commission.

4.13     TAXES.   All Taxes for periods and events before the date hereof and
         before the Closing Date have been paid or have been sufficiently
         provided for in the Financial Statement.

         As of the date hereof, the Companies are in compliance with all
         applicable laws, regulations or orders of any governmental entity with
         respect to Taxes and have timely filed all Tax Returns for all Taxes
         required by law to have been filed and all such Tax Returns are
         complete and accurate.  The documentary evidence necessary to support
         such returns are at the disposition of the Companies or their tax
         advisors.  The necessary records have been maintained and the
         necessary accounting methods have been adhered to.

4.14     AGREEMENTS WITH THIRD PARTIES. The Companies are not in, and the
         consummation of the transactions contemplated by this Agreement will
         not result in, any default under, or breach of, any agreement to which
         any of the Companies is a party or which might result in termination
         or liability or other loss which could materially affect its business,
         assets or condition, financially or otherwise.  All third parties to
         these agreements are essentially in compliance therewith and not in
         material default thereunder.

4.15     INTELLECTUAL PROPERTY/KNOW-HOW.  The Companies own or have sufficient
         right to use all the know-how and all the patents, trademarks, trade
         names, trade secrets, copyrights and other intellectual property rights
         (collectively the "Intellectual Property") which are necessary for the
         conduct
   19
                                     - 15 -

         of their business as it is now conducted.  Furthermore, Seller warrants
         that the Intellectual Property and the Company's business practices to
         the best of Seller's Knowledge, do not conflict with the rights of any
         third party.  The Companies have not granted any licenses to use any of
         the Intellectual Property to any third parties.

4.16     PENSIONS/EMPLOYEES. The pension plans and/or pension funds and other
         welfare plans of the Companies comply with all applicable legal
         provisions and have been administered in conformity with all
         applicable law.  Seller warrants that all accrued pension claims and
         accrued claims under other welfare plans of the Companies' employees
         are covered by funds of special foundations, by insurance contracts or
         provisions the Companies have specifically established for such
         purpose.

         The Companies have not entered into any agreement which oblige them to
         make severance payments or grant other extraordinary privileges in
         excess of any statutory or customary requirements.  Exempt from such
         warranty is the agreement with Mr. W. Berry, which provides for 6
         months severance payment (calculated on Mr. Berry's previous salary).

4.17     COMPLIANCE WITH THE LAW.  To the best of Seller's Knowledge, the
         Companies have not materially violated any applicable laws,
         ordinances, regulations, decrees or orders of any government entity.

         Seller, in particular, warrants that to the best of Seller's Knowledge
         the Companies and their plants, real estate and equipment comply with
         all applicable labor and occupational health and safety laws,
         regulations, decrees and orders and that the competent authorities
         have not informed the Companies in writing that they will issue any
         orders with which the Companies do not yet comply.

4.18     ENVIRONMENTAL MATTERS.  To the best of Seller's Knowledge, all
         properties and facilities that are and have been operated by the
         Companies and their businesses as presently conducted comply with all
         applicable environmental laws, regulations, decrees and orders.

4.19     PRODUCT LIABILITY/WARRANTY CLAIMS.  No third parties have any claims
         against the Companies in connection with any products delivered or
         services rendered by the Companies as of the date hereof which, or
         before the Closing Date which
   20
                                     - 16 -

         (i) exceed one percent of the Companies' total turnover for the year
         in which such products were delivered or services were rendered and
         (ii) are neither covered by provisions in the Financial Statement nor
         by insurance policies.

4.20     REAL ESTATE.  The Companies have rightful title to the real estate
         listed in Schedule 4.20 free and clear of any mortgages other than the
         mortgages listed in Schedule 4.20. The Company identified on Schedule
         4.20 has full legal and practical access to and good interest in such
         real estate.  None of the buildings constructed thereon encroaches
         upon adjoining real estate.

4.21     LEASES.  The real estate leases listed in Schedule 4.21 are in full
         force and effect and constitute a valid and existing leasehold
         interest under each of the leases for the term set forth on such
         Schedule. With the exception of financial leases recorded on the
         Company's Financial Statement set forth in Schedule 4.5 and any
         contracts over payments of less than CHF 50,000.per year, all lease
         agreements covering personal property the Companies have concluded are
         listed in Schedule 4.21a.

4.22     BROKERS' FEES.  Neither the Seller nor the Companies have any
         liability or obligation to pay any fees or commissions to any Broker,
         finder or agent with respect to the transactions contemplated by this
         Agreement.

4.23     SELLER'S COSTS.  The only costs of the Seller related to the
         transactions contemplated by this Agreement that have been paid by the
         Company or the Companies are those identified in art. 10.1 herein.

4.24     NO FURTHER WARRANTIES.  Except as expressly provided in this Article
         4, Seller makes no representation or warranty with respect to the
         Shares or the Companies.

                                   ARTICLE 5
                                    REMEDIES

5.1      TERM OF WARRANTIES AND REPRESENTATIONS.  The representations and
         warranties set forth in art. 4 of this Agreement shall continue in
         effect until the later of eighteen (18) months  after the Closing Date
         or July 7,1999.  The representations and warranties set forth in art.
         4.13 of this Agreement shall, however, continue in effect until three
         months after the statute of limitation on the tax claims concerned has
         expired.
   21
                                     - 17 -



5.2      NOTIFICATION AND ARBITRATION.  The Parties waive the notification and
         examination requirements of art. 201 of the Swiss Code of Obligations.
         However, Purchaser has to notify Seller within 30 days after Purchaser
         has detected a breach of warranties, describing in reasonable details
         such breach and any damage suffered by the Companies as a consequence
         of such breach.  If Purchaser has notified Seller of a breach of
         representations and warranties, Purchaser has to commence arbitration
         in accordance with art. 11.2 of this Agreement within months after
         such notification has been made, unless the claim raised by Purchaser
         is either. settled before the expiry of such deadline or the Parties
         agree on an extension of such deadline.  If Purchaser fails to meet
         such deadline, the claim concerned shall be forgone and unenforceable.

5.3      DAMAGES.  In case of a breach of a warranty, representation, covenant
         or agreement of Seller, Seller shall within the limitations set forth
         in art. 5.5 of this Agreement indemnify Purchaser for any direct
         damage, e.g.  pay as far as a particular state of a company is
         warranted to Purchaser an amount equal to the amount by which the
         actual state of the company concerned differs from the state described
         in such warranty.  The right of Purchaser to rescind this Agreement
         ("Wandelung") pursuant to art. 205 CO which is hereby expressly
         excluded.

5.4      SURETY.  In order to secure any claims which Purchaser may have
         pursuant to art. 5.3 of this Agreement, Seller shall provide Purchaser
         with a Surety ("Solidarburgschaft") issued by a first class Swiss bank
         in an amount equal to 20% of the Purchase Price substantially in the
         form attached hereto as Schedule 5.4. Two (2) years after the Closing
         Date, the amount of the Surety shall be reduced to an amount equal to
         (i) CHF 4,000,000.-- plus (ii) an amount equal to claims made until
         such date but not yet settled under art. 5.3 of this Agreement.  Such
         reduced amount may, in any event, not be higher than the original
         amount of the Surety minus all claims paid under such Surety.  On the
         5th anniversary of the Closing, the Surety shall expire, except as and
         to the extent any claims in connection with breaches of  warranties,
         representations, covenants or agreements are pending before the court
         of arbitration pursuant to art. 11.2.

5.5      LIMITATIONS.

5.5.1    DE MINIMIS.  Seller shall have no obligation to pay any amounts under
         art. 5.3 of this Agreement unless:
   22
                                     - 18 -



         (i)     the amount to be paid as indemnification for each individual
                 breach exceeds CHF 100,000.-- (such amount not to be deducted
                 from Purchaser's total indemnity claim under this art. 5) and,

         (ii)    the aggregate amount of the amounts described in (i) above
                 equals or surpasses CHF 1,000,000.-(such amount to be deducted
                 from Purchaser's total indemnity claim under this art. 5).

5.5.2    MAXIMUM AMOUNT.  Any payments of the Seller for breaches of
         representations of warranties set forth in this Agreement shall be
         limited to 20% of the Purchase Price in total.

         Claims of Purchaser under art. 4.13 and art. 9 (first paragraph) of
         this Agreement are not covered by the above limit; a separate limit of
         CHF 4,000,000.-- applies to such claims. to such claims only the de
         minimis of 5.1.1.(i) applies.

5.5.3    EXEMPT REPRESENTATIONS AND WARRANTIES.   None of the limitations
         described in art. 5.5.1 and 5.5.2 shall apply to the representations
         and warranties set forth in art. 4.1, 4.2 and 4.3 and 4.4 of this
         Agreement.  Claims regarding Swiss and German pension claims are also
         exempt from such limitations.

5.5.4    EXCLUSION OF LIABILITY.  Seller shall not be liable in respect of a
         claim of Purchaser for breach of warranties, representations,
         covenants or agreements:

         (i)     if, but only to the extent that any provision, reserve or
                 expense for the matter giving rise to the claim was taken into
                 account in the Financial Statement set forth in Schedule 4.5;

         (ii)    if, but only to the extent that, the matter giving rise to a
                 claim was disclosed in all material respects in one of the
                 Schedules attached to this Agreement or in the Due Diligence
                 Material;

         (iii)   if, but only to the extent that, Purchaser or the Companies
                 receive compensation of the respective loss or damages
                 suffered by them under the terms of any insurance policy or
                 from any other third party;
   23
                                     - 19 -



         (iv)    if, but only to the extent that, any Tax for which Purchaser
                 or the Companies are liable is reduced as a result of any
                 matter giving rise to a claim of Purchaser under the above
                 representations and warranties;

         (v)     if, but only to the extent that, any damage or loss was caused
                 by any act or omission of Purchaser occurring after the
                 Closing Date or by the fact that Purchaser has failed to take
                 reasonably necessary steps to mitigate the damage caused by a
                 breach of a representation or warranty.

5.6      PROCEDURE WITH THIRD PARTIES AND AUTHORITIES.   If a breach of a
         representation or warranty exists because any authorities or third
         parties raise claims against the Companies or if the Companies in
         connection with such a breach have to enforce any rights or claims
         against authorities or other third parties, the Parties shall
         cooperate in such negotiations and proceedings.  The Companies in any
         event may not settle any such claims without Seller's consent, which
         consent shall not be unreasonably withheld.

                                   ARTICLE 6
                     RESIGNATIONS OF DIRECTORS AND AUDITORS

         At the Closing Date Seller shall remit to Purchaser resignations of
         the directors and auditors of the Companies, as requested in writing
         by Purchaser prior to December 1, 1997.

         Purchaser agrees to hold an extraordinary shareholders' meeting for the
         Company immediately after the Closing Date and to elect new directors
         at such meeting.  For the Subsidiaries Purchaser shall take such action
         within 30 days after the Closing Date.  Purchaser agrees to grant
         complete discharge to the present directors at such meeting.  The
         consent of Purchaser to the Companies' financial statements and the
         discharge of the directors does not operate as a waiver of Purchaser's
         claims under art. 4 and 5 of this Agreement.


                                   ARTICLE 7
                                   COVENANTS

7.1      COVENANT NOT TO COMPETE.  Seller agrees not to engage directly or
         indirectly (including through partnerships or companies) in any
         activities which compete with activities
   24
                                     - 20 -

         the Companies are engaged in at the Closing Date.  Such covenant shall
         be valid for a period of 3 years after the Closing Date.  Any
         participations of less than 5% in publicly traded companies are exempt
         from this covenant. Furthermore, the interest of Seller in J.F.
         Pfeiffer AG or other retail and wholesale operations which deal with
         such products and a sale of inventory acquired pursuant to art. 4.9 of
         this Agreement are also exempt from this covenant.

7.2      CONDUCT OF BUSINESS.  Prior to the Closing, without the prior written
         consent of Purchaser, Seller shall not, and shall cause the Companies
         to take action, or refrain from action, so that they shall not:

         -       take any action that would require disclosure under this
                 Agreement;

         -       directly or indirectly (including through any agent, broker,
                 finder or other third part), offer to sell, merge, consolidate
                 or otherwise dispose of, negotiate for the sale, merger,
                 consolidation or other disposition of, initiate or continue
                 discussions concerning the sale, merger, consolidation or
                 other disposition of, the Companies as a whole, or the sale or
                 other disposition of any of its or their shares of capital
                 stock or any of their assets (other than in the ordinary
                 course of business);

         -       take or omit to take any action which would reasonably be
                 anticipated to have a material and adverse effect upon the
                 business of the Companies;

         -       redeem any stock, bonds or other securities or equity
                 interests, or declare or pay any dividend or other
                 distribution to its shareholders;

         -       make any change in its articles or certificate of
                 incorporation or bylaws that would interfere with or prevent
                 the consummation of the transactions contemplated herein;

         -       make any significant organizational or personnel changes;

         -       pay any bonus or grant any salary or wage increase not in the
                 ordinary course of business or consistent with past business
                 practices;
   25
                                     - 21 -



         -       make any capital expenditures in excess of CHF 300,000.-- per
                 expenditure or CHF 1,000,000.-- in the aggregate;

         -       create any security interest in or any lien or encumbrance on
                 any property or interest of the Companies where the obligation
                 is more than CHF 50,000.-- or cancel or compromise any debt or
                 claims in excess of CHF 50,000.--; or

         -       make or grant any loan.

         The conclusion and termination of the agreements described in art. 7.3
         are exempt from this provision.

7.3      TERMINATION OF AGREEMENTS BETWEEN THE COMPANIES AND SELLER.  With the
         exception of the agreements listed in Schedule 7.3Seller shall
         terminate on or before the Closing Date all agreements existing
         between (i) the Companies on the one hand and (ii) Seller or any
         persons, companies, partnerships or other legal or business entities
         with which Seller or a member of Seller's family is affiliated on the
         other hand.  The termination of such agreements shall not oblige the
         Companies to make any payments in compensation of the termination such
         as for example severance payments or any payment for a notification
         period extending beyond the Closing Date.

         The parties intend to dissolve the lease agreement for the Del Rio
         facility against payment of lease balance if such transaction does not
         cause any excessive costs to one of the Parties (such as for example
         payment of prepayment penalties or negative tax effects).  The Parties
         will after the execution hereof engage in negotiations on such
         transaction.

         Purchaser is entitle to terminate the lease agreements for the Zurich
         and the Elk Grove facilities by serving six months' notice for Zurich
         and 30 days notice for Elk Grove.

7.4      INFORMATION OF EMPLOYEES.  Seller shall comply with the Closing Date
         with all legal requirements  regarding information of and consultation
         with the Company's employees.  Seller shall inform Purchaser on such
         requirements and on the form and content of the information to be
         disclosed to the employees and shall coordinate such. information with
         the Purchaser.
   26
                                     - 22 -

7.5      EMPLOYMENT OF SELLER.  Seller shall conclude not later than at the
         Closing Date a consultancy agreement with Purchaser.  Seller and
         Purchaser will negotiate such agreement after the execution hereof
         taking into account the needs of the business.

7.6      SELLER'S COOPERATION.  Prior to the Closing Date, Seller shall make
         available to the Purchaser and its representatives during normal
         business hours all of its books and records in addition to its
         employees so that Purchaser may continue its investigation of the
         business and affairs of the Company.

7.7      TRANSITION ASSISTANCE.   From the date hereof and until three (3)
         years after the closing Date, Seller shall not in any manner take any
         action which is designed, intended or might be reasonably anticipated
         to ave the effect of discouraging customers, suppliers, lessors and
         other business associates from maintaining the same business
         relationship with purchaser after the date of this Agreement as were
         maintained with the Companies prior to the date hereof.

7.8      ENVIRONMENTAL ISSUES.  Seller shall until March 31, 1998 remove or
         remedy at his own cost:

         -       the oil spill at the tank in Lottstetten;

         -       the oil spill (out of barrels) in Del Rio.

         Seller shall - as the owner of the facility in Lottstetten - remain
         liable for the TCA contamination and hold the Companies and Purchaser
         harmless from any claims relating to or in connection with such
         contamination.

         If the Purchaser or Ibico Portuguesa Ltda. are ordered by competent
         authorities or directly compelled by statutory law to remove the roof
         tiles containing asbestos fibres at the Arcos de Valdevez facility,
         Seller shall pay to Purchaser the book value of such roof tiles
         existing at such date on the basis of the depreciation rates currently
         used by Ibico Portuguesa Ltda.  Seller shall, furthermore, indemnify
         Purchaser for costs incurred in the disposal of such tiles as far as
         such costs are caused by the fact that the tiles contain asbestos
         fibres.

         The limitations set forth in art. 5.5 of this Agreement are not
         applicable to Seller's obligations under this article.
   27
                                     - 23 -



                                   ARTICLE 8
                     TRANSFER OF MANAGEMENT RESPONSIBILITY

Immediately after the Closing, Purchaser takes over full responsibility for the
Company's management and operations.


                                   ARTICLE 9
                                     TAXES

Any Swiss taxes or other charges which become due in connection with the
transfer of the Shares by Seller to Purchaser under this agreement shall be at
the charge of Seller.  If Swiss stamp taxes are levied on the purchase price
because Purchaser uses the services of a Swiss security dealer such stamp
taxes, however, shall be borne by Purchaser.  Seller shall be liable for and
pay when due all Taxes to be paid by the Companies due to any reassessment of
Taxes for any periods and events before the Closing Date.  Seller is, in
particular, liable for any Taxes to be paid on any constructive dividends paid
by the Companies to Seller or to third parties before the Closing Date and for
any Taxes to be paid due to any violation by any of the Companies prior to or
on the Closing Date of agreements they have concluded with tax authorities.

Seller, furthermore, shall be liable for any income taxes assessed on the
capital gain he realizes in the sale of the Shares.  However, until the fifth
anniversary of the Closing Date, Purchaser shall not engage in any of the
following transactions, unless written consent is given by Seller:

- -        payment of any dividends by the Company on the basis of earnings
         accrued before December 31, 1997;

- -        liquidation of the Company;

- -        merger of the Company into another company;

- -        payment of the Purchase Price, directly or indirectly, out of the
         funds of the Company or its Subsidiaries.

Seller shall not withhold its consent to any of the above transactions if
Purchaser can prove with a private ruling of the cantonal tax authorities of
the canton in which Seller is domiciled (for income taxes) and of the Federal
Tax Authorities (for withholding taxes) that the planned transaction will not
result in a qualification of the gain realized by Seller in the
   28
                                     - 24 -

sale of the Shares as being taxable income.  Seller shall fully cooperate with
Purchaser in order to obtain such ruling.


                                   ARTICLE 10
                                 MISCELLANEOUS

10.1     COSTS.  Each party bears the fees of its counsel and advisors.
         Purchaser consents, however, to the fact that the Company in 1997 but
         before the Closing Date has paid up to CHF 50,000.-- to Seller's
         Counsel for the preparation of alternative sale transactions (going
         public, participation of a financial investor, preparation due
         diligence etc.) and up to CHF 200,000.-- to Master Consulting AG for
         consultancy services rendered in connection with the evaluation of a
         financial investor and up to CHF 150,000.-- to Revisuisse Price
         Waterhouse and KPMG Fides for preparation of special audit statements
         and CHF 40,000.-- to BMG for an environmental audit.

10.2     NOTICE.  Any notice, request, instruction or other document deemed by
         either Party to be necessary or desirable to be given to the other
         Party, shall be in writing and shall be telefaxed or mailed by
         registered mail addressed as follows:

         If to Purchaser:                          Copy to:

         General Binding Corp.                     Vedder, Price, Kaufmann &
         attn. President & CEO                     Kammholz
         One GBC Plaza                             attn. Robert J. Stucker
         Northbrook IL 60062                       Chicago, IL 60601
         USA                                       USA

                 If to Seller:                                    Copy:

         Dr. U. Wolfensberger                      Dr. U. Schenker
         Seestrasse 79                             Baker & McKenzie
         8803 Ruschlikon                           Zollikerstrasse 225
         Switzerland                               8034 Zurich
                                                   Switzerland

         Each Party may at any time change its address by giving notice to the
         other party in the manner described above.

10.3     NO WAIVER.   The failure of any of the Parties to enforce a provision
         of this Agreement or any rights with respect thereto shall in no way
         be considered as a waiver of such
   29
                                     - 25 -

         provisions or rights or in any way to affect the validity of this
         Agreement.  The waiver of any claim for breach of this Agreement by a
         Party hereto shall not operate as a waiver of any claim pertaining to
         another, prior or subsequent breach.

10.4     ENTIRE AGREEMENT.   This instrument embodies the entire agreement
         between the Parties hereto with respect to the transaction
         contemplated herein and there have been and are no agreements or
         warranties between the Parties other than those set forth or provided
         for herein.  This Agreement may be amended only in writing through a
         document signed by all the parties hereto.

10.5     BINDING ON SUCCESSORS.  All of the terms, provisions and conditions of
         this Agreement shall be binding upon and inure to the benefit of the
         Parties hereto and their respective heirs, successors and assigns.

10.6     ANNOUNCEMENTS.  Seller and Purchaser shall consult before issuing
         press releases or otherwise making any public statements or any
         statements to the Company's employees with respect to this Agreement
         and shall not issue any such press release or statement without the
         prior approval of the other Party.

10.7     ASSIGNMENT.  Purchaser may assign this Agreement to a wholly owned
         subsidiary of Purchaser.  Purchaser, however, in such case remains
         fully liable for all liabilities under this Agreement.

                                   ARTICLE 11
                         GOVERNING LAW AND ARBITRATION

11.1     GOVERNING LAW.   This Agreement shall be subject to and governed by
         Swiss Law.

11.2     ARBITRATION.   All disputes arising out of this Agreement or in
         connection with this Agreement shall be solely and finally settled by
         a court of arbitration consisting of three arbitrators in accordance
         with the international arbitration rules of the Zurich Chamber of
         Commerce.  The place of arbitration shall be Zurich.  The court of
         arbitration shall conduct the proceedings and all awards shall be
         rendered in the English language.


IN WITNESS WHEREOF, the parties thereto have executed this agreement as of the
date and year first above written.
   30
                                     - 26 -




Seller:                                            Purchaser:
                                                   General Binding


 /s/ U. WOLFENSBERGER                              /s/ ARTHUR J. SCHILLER
- -----------------------                            -----------------------
Dr. U. Wolfensberger


Annexes
   31
                                     - 1 -

                     AMENDMENT TO STOCK PURCHASE AGREEMENT
                                    BETWEEN
                          GENERAL BINDING CORPORATION
                                      AND
                              DR. U. WOLFENSBERGER

WHEREAS,  Ibico, under a license contract with Mr. von Rohrscheidt (the
"License Agreement"), has had a license to use certain patents and know-how to
produce PolyCombs;

WHEREAS, on the day before the execution of the Stock Purchase Agreement, Ibico
has purchased the patents and the know-how on which the License Agreement was
based (the "Purchase Agreement");

NOW, THEREFORE,  the Parties come to the following agreement:

1.       CONSIDERATION PAID BY IBICO UNDER THE PURCHASE AGREEMENT

         The Parties herewith agree that the net present value (applying a
         discount rate of 6%) of the consideration to be paid by Ibico under
         the Purchase Agreement shall be considered as Funded Debt under the
         Stock Purchase Agreement.

2.       PAYMENT TO SELLER

         Purchaser shall pay to Seller as a recovery of the reduction of the
         Purchase Price effected by the application of art. 1 of this Amendment
         75% of the license fees Ibico would have had to pay under the License
         Agreement for ten years after the Closing Date up to an amount equal
         to the amount of Funded Debt taken into account in the purchase price
         calculation under the Stock Purchase Agreement pursuant to art. 1 of
         this Agreement (for the purpose of calculating these payments HK (alt)
         as defined in the License Agreement shall be calculated on the basis
         of actual production costs incurred by Purchaser).  Seller shall,
         however, not have any of the other rights Mr. von Rohrscheidt had
         under the License Agreement than the right to such payments.

3.       NO FURTHER CHANGES

         This amendment does not lead to any changes or amendments other than
         those described in art. 1 and 2 above in the Stock Purchase Agreement
         between the Parties.

4.       APPLICATION OF PROVISIONS OF THE STOCK PURCHASE AGREEMENT
   32
                                     - 2 -

                 Art. 1, 10 and 11 of the Purchase Agreement are applicable
also to this amendment.

Zurich, October 17, 1997


General Binding Corporation


/s/ ARTHUR J. SCHILLER                      /s/ U. WOLFENSBERGER
- -------------------------                   ------------------------
                                            Dr. U. Wolfensberger