CERBCO INC
DEF 14A, 1997-05-23
CONSTRUCTION - SPECIAL TRADE CONTRACTORS
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                            SCHEDULE 14A INFORMATION

  Proxy Statement Pursuant to Section 14(a) of the Securities Exchange of 1934



Filed by Registrant                                  [ X ]
Filed by Party other than the Registrant             [   ]


Check the  appropriate  box:
[   ] Preliminary Proxy Statement
[ X ] Definitive Proxy Statement
[   ] Definitive Additional Materials
[   ] Soliciting  Material  Pursuant  to  Sec.240.14a-11(c)  or  240.14a-12  [ ]
Confidential, for Use of the Commission Only (as permitted by Rule 14-6(e)(2)



                                  CERBCO, INC.



Payment of Filing Fee (Check the appropriate box):

[ ] $125 per Exchange Act Rules 0-11(c)(1)(ii), 14a-6(i)(1), 14a-6(i)(2) or Item
22(a)(2) of Schedule 14A. [ ] $500 per each party to the controversy pursuant to
Exchange Act Rule 14a-6(i)(3).  [ ] Fee computed on table below per Exchange Act
Rules 14a-6(i)(4) and 0-11.
         1) Title of each class of securities to which transaction applies:
            Common Stock and Class B Common Stock
         2) Aggregate number of securities to which transaction applies:
         3) Per unit price or other underlying value of transaction computed 
            pursuant to Exchange Act Rule 0-11 (Set forth the amount on which 
            the filing fee is calculated and state how it was determined):
            Cash Consideration to be received
         4) Proposed maximum aggregate value of transaction:     $22,000,000.00
         5) Total fee paid:                                      $     4,400.00

[X]   Fee paid previously with preliminary materials

[ ] Check box if any part of the fee is offset as provided by Exchange  Act Rule
0-11(a)(2) and identify the filing by registration  for which the offsetting fee
was paid  previously.  Identify the previous  filing by  registration  statement
number, or the Form or Schedule and the date of its filing.
         1) Amount Previously Paid:
         2) Form, Schedule or Registration Statement No.:
         3) Filing Party:
         4) Date Filed:


<PAGE>



                                  CERBCO, Inc.
                                3421 Pennsy Drive
                            Landover, Maryland 20785

                    NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                              FRIDAY, JUNE 27, 1997



To the Stockholders of CERBCO, Inc.:

         NOTICE IS  HEREBY  GIVEN  that a Special  Meeting  of  Stockholders  of
CERBCO,  Inc.,  a  Delaware  corporation  (the  "Company"),  will be held at the
Holiday Inn, US Air Arena, 9100 Basil Court, Landover, Maryland, on Friday, June
27, 1997 at 10:00 a.m. (the "Meeting").

         At the Meeting, you will be asked to consider and to vote, in person or
by proxy,  for or against  the sale by the  Company of its  two-thirds  stake in
Capitol  Office  Solutions,  Inc.  ("COS"),  held by the Company's  wholly-owned
subsidiary CERBERONICS,  Inc. ("Cerberonics"),  for the consideration of a sales
price of $19 million and  two-thirds  of an  approximately  $5 million  pre-sale
distribution of excess cash from COS (the "Transaction").

         The Board of Directors  has fixed the close of business on May 2, 1997,
as the record date for  determining  stockholders  entitled to notice of, and to
vote at, the Meeting.

         The  accompanying   Proxy  Statement   provides  detailed   information
concerning the Transaction and certain additional information.  You are urged to
read and carefully consider this information.

THE BOARD OF DIRECTORS  BELIEVES THAT THE TRANSACTION IS FAIR TO AND IN THE BEST
INTEREST OF THE COMPANY.  THE BOARD OF DIRECTORS  HAS  UNANIMOUSLY  APPROVED THE
TRANSACTION AND RECOMMENDS THAT YOU VOTE FOR APPROVAL OF THE TRANSACTION.

         A copy of the Company's  Annual Report on Form 10-K for the fiscal year
ended June 30,  1996 and  Quarterly  Report on Form 10-Q for the  quarter  ended
March 31, 1997 accompany this Notice.

WHETHER OR NOT YOU EXPECT TO BE PRESENT IN PERSON AT THE  MEETING,  PLEASE SIGN,
DATE AND PROMPTLY MAIL THE ENCLOSED PROXY IN THE ENVELOPE  PROVIDED.  NO POSTAGE
IS REQUIRED IF MAILED IN THE UNITED STATES.  A PROMPT  RESPONSE WILL ASSURE YOUR
VOTE AND REDUCE THE COMPANY'S EXPENSE IN SOLICITING  PROXIES. IF YOU ARE PRESENT
AT THE MEETING,  YOU MAY, IF YOU WISH,  WITHDRAW YOUR PROXY AND VOTE YOUR SHARES
PERSONALLY.

YOUR VOTE IS VERY IMPORTANT,  AS APPROVAL OF THE TRANSACTION IS CONDITIONED UPON
THE AFFIRMATIVE VOTE OF A MAJORITY OF THE VOTES CAST BY STOCKHOLDERS  OTHER THAN
THE  COMPANY'S  CONTROLLING  STOCKHOLDERS,  ROBERT W.  ERIKSON  AND  GEORGE  WM.
ERIKSON.

                                  By Order of the Board of Directors,

                                  /s/ Robert F. Hartman
                                  Robert F. Hartman
                                  Secretary


Landover, Maryland
May 27, 1997



<PAGE>



                                  CERBCO, Inc.
                                3421 Pennsy Drive
                            Landover, Maryland 20785

                         Special Meeting of Stockholders
                              Friday, June 27, 1997

                                 PROXY STATEMENT

                    SOLICITATION AND REVOCABILITY OF PROXIES

         This Proxy Statement is furnished in connection  with the  solicitation
of proxies by the Board of  Directors of CERBCO,  Inc.,  a Delaware  corporation
("CERBCO" or the  "Company"),  for use at the Special Meeting of Stockholders to
be held at the Holiday Inn, US Air Arena, 9100 Basil Court, Landover,  Maryland,
on Friday,  June 27, 1997 at 10:00 a.m.,  and at any  adjournments  thereof (the
"Meeting").

         At the Meeting, you will be asked to consider and to vote, in person or
by proxy,  for or against  the sale by the  Company of its  two-thirds  stake in
Capitol  Office  Solutions,  Inc.  ("COS")  held by the  Company's  wholly-owned
subsidiary CERBERONICS,  Inc. ("Cerberonics"),  for the consideration of a sales
price of $19 million and  two-thirds  of an  approximately  $5 million  pre-sale
distribution of excess cash from COS (the "Transaction").

         The Board of Directors (the "Board") has fixed the close of business on
May 2, 1997,  as the record date (the "Record  Date") for the  determination  of
stockholders who are entitled to notice of, and to vote at, the Meeting.

         Stockholders are requested to complete,  sign and date the accompanying
proxy and return it  promptly to the Company in the  enclosed  envelope.  If the
enclosed proxy is executed and returned, it may be revoked at any time before it
is voted at the Meeting by a written  notice of  revocation  to the Secretary of
the  Company,  or by  executing a proxy  bearing a later  date,  or by voting in
person at the Meeting.

         Shares of Common Stock and shares of Class B Common  Stock  represented
by valid  proxies  received in time for the Meeting,  and not  revoked,  will be
voted as specified therein.  If no instructions are given, the respective shares
of common stock will be voted FOR the Transaction; and, if authority is given to
them,  at the  discretion  of the proxy  holders,  on any other matters that may
properly come before the Meeting.

         The  cost of  solicitation  will be borne  by the  Company.  Additional
solicitations  may be made by mail,  telephone,  telegraph,  personal contact or
other means by the Company or by its directors or regular employees. The Company
may make arrangements  with brokerage houses and other custodians,  nominees and
fiduciaries  to send proxies and proxy  statements to the  beneficial  owners of
shares of the Company's  common stock and to reimburse them for their reasonable
expenses in so doing.

         This Proxy Statement and form of proxy and the  accompanying  Notice of
Special Meeting, Form 10-K and Form 10-Q are first being mailed to the Company's
stockholders of record on or about May 27, 1997.


                      OUTSTANDING SHARES AND VOTING RIGHTS

         Each share of Common Stock is entitled to one vote. Each share of Class
B Common  Stock is  entitled  to ten votes,  except  with  respect to any matter
requiring the vote of Common Stock or Class B Common Stock voting  separately as
a class.  As of the Record  Date,  there were  outstanding  1,177,601  shares of
Common Stock,  $.10 par value (the "Common Stock") and 296,355 shares of Class B
Common Stock,  $.10 par value (the "Class B Common  Stock"),  which are the only
classes of stock of the Company  outstanding.  A quorum shall be  constituted by
the presence at the Meeting,  in person or by proxy,  of one-third  (1/3) of the
stock issued and outstanding and entitled to vote.


                                        1

<PAGE>



         Your  vote  is  very  important,  as  approval  of the  Transaction  is
conditioned  upon  the  affirmative  vote of a  majority  of the  votes  cast by
stockholders other than the Company's controlling stockholders (the "Non-Erikson
Stockholders").  The  controlling  stockholders  of the  Company  are  Robert W.
Erikson and George Wm.  Erikson (the  "Eriksons").  As of the Record  Date,  the
Non-Erikson  Stockholders  held 1,060,299  shares of  outstanding  Common Stock,
entitling them to cast 1,060,299 votes, and 48,791 shares of outstanding Class B
Common Stock,  entitling  them to cast 487,910  votes,  for a total of 1,548,209
votes eligible to be cast by the Non-Erikson Stockholders.

         Approval of the Transaction for purposes of Section 271 of the Delaware
Corporation Law ("Section 271") requires a favorable vote of a majority of votes
entitled to be cast by all the  stockholders  of the  Company.  As of the Record
Date,  the Eriksons  held 117,302  shares of Common Stock and 247,564  shares of
Class B Common Stock, entitling them to cast 2,592,942 votes with respect to the
Transaction, bringing to 4,141,151 the total number of votes entitled to be cast
by all  stockholders  with  respect  to the  Transaction.  Therefore,  at  least
2,070,576 affirmative votes are required to approve the Transaction for purposes
of Section 271.  Provided  that a majority of the votes cast by the  Non-Erikson
Stockholders  are cast in favor of the  Transaction,  the  Eriksons  have agreed
pursuant to the terms of the  Transaction  to vote  substantially  all (at least
2,568,486 votes) of their shares in favor of the Transaction.  As a consequence,
the  affirmative  vote  of a  majority  of the  votes  cast  by the  Non-Erikson
Stockholders  will result in at least 2,568,487 votes being cast in favor of the
Transaction,  an amount in excess of the number of votes required by Section 271
for approval.

         Since the  Transaction  is  conditioned  on a majority of votes cast by
Non-Erikson Stockholders, votes withheld by Non-Erikson Stockholders,  including
abstentions  and broker  non-votes,  will not be counted as either  votes for or
against the Transaction.  However, for purposes of Section 271, which requires a
favorable  vote  of a  majority  of  votes  entitled  to  be  cast  by  all  the
stockholders  of  the  Company,  votes  withheld  by  Non-Erikson  Stockholders,
including abstentions and broker non-votes, will be counted as votes against the
Transaction.

                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities Exchange Act of 1934 ("Exchange Act"), and, in accordance  therewith,
files periodic  reports and other  information  with the Securities and Exchange
Commission  (the  "Commission").  Reports and other  information  concerning the
Company may be inspected  and copied at the public  reference  facilities of the
Commission at Room 1024,  Judiciary Plaza, 450 Fifth Street, NW, Washington,  DC
20549.  Copies of such  material  also can be  obtained  by mail from the Public
Reference  Section of the Commission at Room 1024,  Judiciary  Plaza,  450 Fifth
Street,  NW,  Washington,  DC 20549, at prescribed  rates.  The Company's Common
Stock is listed on the NASDAQ  National  Market.  Reports and other  information
concerning  the Company  can be  inspected  at the  offices of the NASDAQ  Stock
Market, Inc., 1735 K Street, NW, Washington, DC 20006-1506.  The Commission also
maintains a world wide web site that  contains  reports,  proxy and  information
statements and other information regarding the Company.
The world wide web site address is http://www.sec.gov.


                     ABSENCE OF DISSENTERS' APPRAISAL RIGHTS

         Under  Delaware  law, the  Company's  stockholders  are not entitled to
dissenters' rights of appraisal with respect to the Transaction.



                                        2

<PAGE>



                                TABLE OF CONTENTS


SOLICITATION AND REVOCABILITY OF PROXIES..............................        1
OUTSTANDING SHARES AND VOTING RIGHTS..................................        1
AVAILABLE INFORMATION.................................................        2
ABSENCE OF DISSENTERS' APPRAISAL RIGHTS...............................        2
TABLE OF CONTENTS.....................................................        3
PROPOSAL - THE TRANSACTION............................................        4
Summary...............................................................        4
The Transaction.......................................................        7
         General......................................................        7
         Background and Reasons for the Transaction...................        7
         Certain Material Negotiations................................        8
         Fairness Opinion ............................................       12
         Recommendation of the Board of Directors.....................       14
         Principal Terms of the Transaction...........................       14
                  Recapitalization. ..................................       14
                  Financing. .........................................       14
                  Redemption. ........................................       15
                  Investment. ........................................       15
                  Stock Purchase.  ...................................       15
                  Escrow Arrangements.................................       15
                  Redemption Price and Stock Purchase Price Adjustments      15
                  Representations and Warranties......................       16
                  Covenants of the Parties............................       17
                  Conditions to Closing...............................       17
                  Indemnification.....................................       18
                  Break-Up Fees.......................................       18
                  Related Agreements..................................       19
                           Erikson Consulting and Non-Competition Agreement  19
                           Erikson Voting Agreement...................       19
                           Manoogian Executive Agreement..............       20
                           Other Related Agreements...................       20
         Special Factor...............................................       20
         Interests of Certain Persons in the Transaction..............       20
         Federal Income Tax Consequences..............................       21
         Regulatory Requirements......................................       21
         Accounting Treatment.........................................       21
USE OF PROCEEDS.......................................................       21
SELECTED FINANCIAL DATA...............................................       22
PRO FORMA FINANCIAL INFORMATION.......................................       23
SECURITY OWNERSHIP....................................................       28
INDEPENDENT PUBLIC ACCOUNTANTS........................................       29
STOCK PRICE...........................................................       29
         Common Stock.................................................       29
         Class B Common Stock.........................................       30
         Holders......................................................       30
         Dividends....................................................       30
OTHER MATTERS.........................................................       30
INCORPORATION BY REFERENCE............................................       31
STOCKHOLDER PROPOSALS.................................................       31



                                        3

<PAGE>



                           PROPOSAL - THE TRANSACTION


                                     SUMMARY

         The  following  is a summary of  certain  information  relating  to the
Transaction.  This summary is not intended to be a complete description of these
matters and is subject to and qualified in its entirety by reference to the more
detailed information regarding the Transaction described in this Proxy Statement
and contained in the Investment,  Redemption and Stock Purchase  Agreement dated
March 7, 1997, and certain other  agreements  dated as of the same date or to be
entered into in connection with the Transaction, including the Escrow Agreement,
the Erikson Voting Agreement,  the Erikson Consulting and Non-Compete  Agreement
and the Manoogian Executive Agreement,  copies of which are included as Exhibits
A, B, C, D, and E, respectively, to this Proxy Statement. Subject to stockholder
approval and certain other conditions, the Transaction is expected to close (the
"Closing") on June 30, 1997 or as soon thereafter as possible.

         The Company's  principal  executive  offices are located at 3421 Pennsy
Drive, Landover,  Maryland 20785, and the Company's phone number at such offices
is (301) 773-1784.  The Company's  stockholders  are urged to read and carefully
consider the entire Proxy Statement.

         The Company has entered into a definitive  Investment,  Redemption  and
Stock  Purchase  Agreement  dated  March 7,  1997 (the  "Redemption  Agreement")
pursuant to which COS will redeem the Company's  entire  two-thirds stake in COS
held   by   the   Company's   wholly-owned   subsidiary,    CERBERONICS,    Inc.
("Cerberonics"),  for approximately $19 million. COS is a provider of copier and
fax  equipment,  service and supplies in the  Washington,  D.C.  and  Baltimore,
Maryland  metropolitan  areas.  Under the  Redemption  Agreement,  the  Company,
through Cerberonics, will also receive a two-thirds share of an approximately $5
million  pre-redemption  distribution of excess cash from COS. The approximately
$22  million  to  be  received  by  Cerberonics   for  the  redemption  and  the
pre-redemption  distribution  will be subject to  adjustment  based upon audited
financial statements at the time of Closing.  After Closing, the Company intends
to declare and distribute  promptly a dividend of $1.50 per share to the holders
of Common  Stock  and  Class B Common  Stock as of a record  date  proximate  to
Closing.

         The Company's  controlling  interest in Insituform  East,  Incorporated
("Insituform  East"),  its other principal  operating  subsidiary which provides
excavationless sewer and pipeline rehabilitation services and which is also held
through Cerberonics, will not be affected by the Transaction.

         Other parties to the Redemption  Agreement  include Armen A. Manoogian,
President, a director and one-third owner of COS ("Mr. Manoogian"),  and Golder,
Thoma,  Cressey,  Rauner  Fund IV ("GTCR")  of  Chicago,  Illinois.  GTCR is the
controlling  stockholder of Global Imaging Systems,  Inc. of Tampa,  Florida,  a
consolidator of copier dealerships ("Global"). The Redemption Agreement provides
that GTCR and certain other  investors to be named at Closing (the  "Investors")
will  acquire  from Mr.  Manoogian  a portion  (5/8s) of his  current  one-third
interest  in COS for  approximately  $5  million  and  that Mr.  Manoogian  will
participate  ratably  in the $5  million  pre-redemption  distribution  by  COS.
Pursuant to the Redemption Agreement,  the Investors are to acquire newly issued
COS common stock in  consideration  of a $1 million  investment,  and GTCR is to
arrange the  additional  estimated $24 million  financing  that COS will need to
fund the  redemption  of COS stock held by  Cerberonics  and the purchase of COS
stock  from Mr.  Manoogian.  After  such  redemption  and  stock  purchase,  the
Investors  will  have a  two-thirds  interest  and  Mr.  Manoogian  will  have a
one-third interest in the recapitalized and newly leveraged COS.

         For the  Transaction,  the  parties  assigned a value of $27 million to
COS,  excluding the approximately $5 million  pre-redemption  distribution.  The
Company's  $19 million  share of the total $27  million  value is  comprised  of
two-thirds  of the total  valuation  ($18  million),  plus a $1 million  control
premium in light of the Company's controlling interest in COS. Consequently, Mr.
Manoogian's  minority  interest is being valued at $8 million,  exclusive of his
one-third interest in the $5 million pre-redemption distribution.  The Investors
are to acquire 5/8 of that interest for $5 million.

                                        4

<PAGE>



         The  Redemption  Agreement  provides  that COS and each of the Eriksons
will enter into a three-year  consulting and non-competition  agreement pursuant
to which the Eriksons are to serve as advisors and  consultants to COS after the
Transaction.  The Eriksons are each to receive $150,000 for the  non-competition
agreement  and $50,000 for  consulting  services  promptly  after  Closing,  and
$50,000 on each of the first and second anniversaries  thereof, if available and
able to perform the consulting  services.  Similarly,  the Redemption  Agreement
provides  that COS and Mr.  Manoogian  will  enter into an  Executive  Agreement
pursuant  to which  Mr.  Manoogian  will  serve as the  President  of COS  after
Closing,  at an initial  annual  base  salary of  $200,000  (subject to periodic
increase at the discretion of the COS Board),  with the potential for earning an
annual bonus of up to one-half of his annual base salary beginning in the fiscal
year ending June 30, 1998.

         The Transaction is conditioned,  among other things, upon the Company's
receipt from an investment  banker of an opinion stating that the  consideration
to be received for the sale of the Company's  two-thirds stake in COS is fair to
the  Company  from a  financial  point of view.  As a  consequence,  the Company
retained  Merrill Lynch  Business  Advisory  Services  ("MLBAS"),  a division of
Merrill Lynch, Pierce,  Fenner & Smith Incorporated,  to render an opinion as to
the  fairness  to  the  Company,   from  a  financial  point  of  view,  of  the
consideration  to  be  received  by  Cerberonics   pursuant  to  the  Redemption
Agreement.  At a meeting of the Board held on April 3, 1997, MLBAS delivered its
oral  opinion to the Board to the effect that the proposed  consideration  to be
received by  Cerberonics  pursuant to the  Redemption  Agreement was fair to the
Company from a financial point of view and  subsequently  confirmed such opinion
by delivery of its written  opinion dated as of April 4, 1997.  The full text of
MLBAS's opinion dated as of April 4, 1997, which sets forth, among other things,
assumptions made, procedures followed, matters considered and limitations on the
scope of review undertaken, is attached as Exhibit F to this Proxy Statement and
is incorporated  herein by reference.  The Company's  stockholders  are urged to
read the MLBAS opinion in its entirety.

         The  Transaction is also  conditioned  upon the separate  approval by a
majority of the votes cast by the  Eriksons  and by a majority of the votes cast
by the  Non-Erikson  Stockholders.  In connection  therewith,  the Eriksons have
entered  into a voting  agreement  pursuant to which each of them agrees to vote
substantially all of the shares of the Company's Common Stock and Class B Common
Stock held by each of them in favor of the  Transaction,  provided a majority of
the  votes  cast by the  Non-Erikson  Stockholders  are  voted  in  favor of the
Transaction.  As of the Record Date, the Non-Erikson Stockholders held 1,060,299
shares of outstanding Common Stock,  entitling them to cast 1,060,299 votes, and
48,791  shares  of  outstanding  Class B Common  Stock,  entitling  them to cast
487,910  votes,  for a  total  of  1,548,209  votes  eligible  to be cast by the
Non-Erikson  Stockholders.  As of the date of this Proxy Statement,  the Company
has made no determination regarding resolicitation of proxies if the Transaction
is not approved by a majority of the votes cast by the Non-Erikson Stockholders.

         The  Company  acquired  its  two-thirds  stake  in COS in  1987  for an
investment of $500,000.  The Company also loaned COS $2.75  million,  which loan
was subsequently repaid by COS with interest.  Though COS struggled early on, in
recent years COS has performed  well,  contributing  on average in excess of 20%
pre-tax earnings on revenues during the last three years.

         In recent years, there has been an accelerated  consolidation of copier
dealers  nationwide,  principally by IKON Office  Solutions,  Inc.  ("Ikon") and
Danka  Business  Systems,  PLC  ("Danka"),  and more recently by Global.  Public
reports indicate that Ikon and Danka both have grown via industry  consolidation
to annual sales volumes in excess of $3 billion each.

         As a result of the industry  consolidation,  the Board expects that COS
will face  increasing  and  intensifying  competition  from these large national
networks,  each of which has the benefit of  substantially  larger marketing and
distribution  resources,  and potential  preferential pricing from manufacturers
via higher volume purchasing levels, resulting in the risk for decreases in COS'
pre-tax margins.  The Board believes that the present strong performance of COS,
taken  together  with  the  continuing  industry  consolidation,  makes  this  a
favorable time for the Company to sell its interest in COS.


                                        5

<PAGE>



         Over the last three years, the Company received expressions of interest
from Ikon and Danka, the industry's two principal  consolidators,  regarding the
possible  sale of COS,  but  neither  company  appeared  willing  to pay a price
acceptable to the Board.

         Global first  approached the Company in October of 1994 about acquiring
COS,  and the Company  engaged in three  separate  rounds of  negotiations  with
Global  since that date.  The first round was  terminated  in March of 1995 when
Global lost its planned source of financing. The price then under discussion was
$24  million  for 100% of COS.  Global  approached  the Company a second time in
December of 1995,  again offering a $24 million  purchase price.  The issue of a
control premium for the Company was unresolved, and the Board then felt that the
purchase price was inadequate.

         The third round commenced in March of 1996 when Global made yet another
approach.  Over the next eight months,  basic terms generally  acceptable to the
Company were agreed upon. The price to the Company increased from $16 million to
$19 million,  reflecting  both an increased  transaction  value and a $1 million
control  premium  to the  Company.  Concerns  about  Global's  ability to obtain
financing  were  resolved  by  the  substitution  of  GTCR,  Global's  principal
stockholder, as the buyer. But significant unresolved issues remained.

         The Board desired to obtain an investment  banker's  opinion  regarding
the fairness of the price prior to executing  the  Redemption  Agreement.  If it
did, GTCR informed the Board, given the length of time that the parties had been
negotiating,  GTCR would withdraw its proposal . Ultimately,  the Company agreed
to obtain the opinion after the  Redemption  Agreement was executed and to pay a
break-up fee of $250,000 if the Company  terminated the  Transaction as a result
of an unfavorable opinion.

         During negotiations GTCR requested that the Eriksons enter into and the
Eriksons  ultimately  agreed to enter into a voting agreement  pursuant to which
they agreed to cast substantially all their votes in favor of the Transaction so
long as a majority of all votes cast by the Non-Erikson  Stockholders  were cast
in favor of the Transaction. The Eriksons objected to the extent that the voting
agreement  required them to give up certain rights related to their stock for an
extended period,  including "no shop" provisions and a prohibition on selling or
pledging their stock,  among other things.  The Eriksons asked for  compensation
from the  Company in the amount of $300,000  each for giving up these  rights in
furtherance of the  Transaction.  The Board was concerned about the reduction in
the net proceeds  from the  Transaction  if it paid this amount to the Eriksons.
Ultimately,  GTCR agreed to pay the Eriksons,  without  reducing the proceeds to
the Company,  a total of $300,000  each for agreeing not to compete with COS and
for providing  consulting services to COS for three years following Closing. The
Company  agreed to  reimburse  the Eriksons as  stockholders  for their costs in
reviewing and negotiating the voting  agreement and to indemnify the Eriksons as
stockholders in connection with the Transaction.

         Because  GTCR's  request  for  the  Eriksons  to  enter  into a  voting
agreement   raised   issues   involving  the  Eriksons   personally,   including
indemnification   as   stockholders,   and  because  the  Redemption   Agreement
contemplates  the  Eriksons  entering  into  a  consulting  and  non-competition
agreement  through which they are to receive  compensation,  the Board  believes
that it is appropriate  for the  Non-Erikson  Stockholders  to have a meaningful
voice in approving the Transaction.  Ultimately, GTCR agreed that the Redemption
Agreement would provide that the Transaction would not be deemed approved unless
a majority of all votes cast by the Non-Erikson  Stockholders were cast in favor
of the Transaction,  provided that the Company will pay a $250,000  break-up fee
if the stockholders of the Company fail to approve the Transaction.

THE BOARD OF DIRECTORS  BELIEVES THAT THE TRANSACTION IS FAIR TO AND IN THE BEST
INTEREST OF THE COMPANY.  THE BOARD OF DIRECTORS  HAS  UNANIMOUSLY  APPROVED THE
TRANSACTION AND RECOMMENDS THAT YOU VOTE FOR APPROVAL OF THE TRANSACTION.


                                        6

<PAGE>



                                 THE TRANSACTION

         The following information describes certain information relating to the
Transaction.  This  description does not purport to be complete and is qualified
in its entirety by reference to the  Investment,  Redemption  and Stock Purchase
Agreement dated March 7, 1997 (the  "Redemption  Agreement"),  and certain other
agreements  dated as of the same date or to be entered into in  connection  with
the Transaction,  including the Escrow Agreement,  the Erikson Voting Agreement,
the Erikson  Consulting and  Non-Compete  Agreement and the Manoogian  Executive
Agreement,  copies  of  which  are  included  as  Exhibits  A, B,  C, D,  and E,
respectively, to this Proxy Statement. The Company's principal executive offices
are located at 3421 Pennsy Drive,  Landover,  Maryland 20785,  and the Company's
phone number at such offices is (301) 773-1784.

General

         Holders  of the  Company's  Common  Stock and Class B Common  Stock are
being  asked to  consider  and to  approve  the  Transaction.  The  terms of the
Transaction  are set  forth in the  Redemption  Agreement  and  certain  related
agreements  entered  into in  connection  therewith.  The  Redemption  Agreement
provides  for (i) the $19  million  redemption  by COS of the entire  two-thirds
equity  interest  of  COS  held  by  Cerberonics,   the  Company's  wholly-owned
subsidiary, in conjunction with the recapitalization of COS, (ii) payment to the
Company of a  two-thirds  share of an  approximately  $5 million  pre-redemption
distribution  of excess cash from COS,  (iii) the  arrangement of $24 million in
additional  financing for COS,  (iv) a $1 million  investment in COS by GTCR and
the  Investors,  and (v) the purchase for $5 million by the Investors from Armen
A. Manoogian ("Mr.  Manoogian") of a majority of the remaining  one-third equity
interest of COS held by Mr. Manoogian.  The Redemption Agreement was executed on
March 7, 1997, subject to stockholder approval and certain other conditions. The
Transaction is expected to close on or before June 30, 1997.

Background and Reasons for the Transaction

         During 1987 the Company was phasing out of defense work and was looking
for new  opportunities.  In October of that year,  the  Company  joined with Mr.
Manoogian in the  acquisition of COS for a purchase  price of $3.5 million.  The
Company invested  $500,000 for its ultimate  two-thirds share, and Mr. Manoogian
invested  initially and upon later exercise of an option $250,000 after which he
owned the other one-third. The Company loaned COS the remaining $2.75 million to
complete the leveraged buy-out,  which loan was subsequently  repaid by COS with
interest.

         Though COS  struggled  somewhat in the early years after the  Company's
investment, financial performance improved gradually until COS became the strong
performer  that it is today.  COS has now  delivered on average in excess of 20%
pre-tax earnings on revenues during the last three years.

         Mr.  Manoogian  has been the  President  of COS since  October of 1987.
Throughout  this  period,  Mr.  Manoogian,   as  well  as  the  Eriksons,   have
participated  in the Copier  Dealers  Association  to help them stay informed of
developments  in the copier market.  Through this  connection,  and the numerous
copier business owners and  professionals it has enabled them to meet, they have
acquired  information  about the performance and valuation of copier  businesses
and have observed a substantial consolidation of copier dealers,  principally by
Danka or Ikon, both of which are public companies with annual sales in excess of
$3 billion.  Available information shows that Danka has acquired over 100 copier
business over the last three years, and in calendar 1996 alone Ikon has acquired
in excess of 80 copier businesses.

         As a result of the industry  consolidation,  the Board expects that COS
will face  increasing  and  intensifying  competition  from these large national
dealer  networks  owned by Ikon and  Danka,  both of which  have the  benefit of
substantially  larger  marketing  and  distribution  resources,   and  potential
preferential  pricing  from their  manufacturers  via higher  volume  purchasing
levels resulting in a risk of decreases in COS' pre-tax margins.


                                        7

<PAGE>



         The Board  believes that the present  strong  performance of COS, taken
together with the continuing industry consolidation, makes this a favorable time
for the Company to sell its interest in COS.

         The lead buyer, GTCR, is the controlling stockholder of Global, a third
nationally recognized  consolidator in the copier industry. The Company believes
GTCR views COS as a highly profitable  business with a prestigious  product line
located in the fourth  largest  market in the  country,  making COS an important
addition to Global's growing national portfolio of copier businesses.

         Additionally,  because  the  Transaction  is  structured  such that Mr.
Manoogian  will  sell  only a portion  of his COS  stock  and will  remain  COS'
President,  GTCR will have the benefit of his industry experience and management
skills after Closing.

Certain Material Negotiations

         Ikon  first  approached  the  Company  in July of 1993 to  explore  the
Company's  willingness  to sell COS.  The Board  considered  Ikon's offer of $12
million for 100% of COS to be inadequate,  and nothing further developed at that
time.  Ikon  approached  the  Company  again in the spring of 1994 with an offer
substantially  similar to its first.  The Board  still  believed  that the price
offered was inadequate, particularly in light of the then recent improvements in
COS' profitability.

         In the fall of 1993, a Danka  representative  informally  contacted Mr.
Manoogian to explore whether there was an interest in selling COS. General price
ranges were discussed,  but they were unable to find sufficient common ground to
continue  discussions.  Danka contacted Mr. Manoogian again in the fall of 1996,
suggesting,  without  formally  tendering  an offer,  that it may be  willing to
acquire  100% of COS for a price  in the  range  of $20-  $22  million.  Nothing
developed from these discussions because the contemplated price was well below a
$24 million price proffered by Global.

         Global  approached the Company about acquiring COS in the fall of 1994,
and  offered to  purchase  100% of COS stock for $24  million.  Though the Board
believed such price might fall within an  acceptable  range,  certain  essential
issues were not  resolved.  Among other things,  Mr.  Manoogian was unwilling to
accept anything other than a pro rata split of the sales proceeds,  which failed
to accord the Company any value for its control  position.  During the course of
discussions,  Global  advised the Company that it had lost its planned source of
financing and negotiations were subsequently discontinued.

         In March of 1995, Mr. Manoogian offered to purchase the Company's share
of COS for $16 million.  This was  equivalent to Global's  offer,  but similarly
failed  to  provide a control  premium  for the  Company  and  lacked  committed
financing. Nothing further developed in connection with that offer.

         In December of 1995, Global approached the Company a second time, again
offering a $24 million  purchase price and claiming new  financing.  The control
premium issue  remained  unresolved,  and the Board felt that the purchase price
had become  inadequate  in light of improved  earnings and growth  possibilities
available  to COS as a  result  of its  recent  expansion  into  the  Baltimore,
Maryland market. In addition, questions remained about the certainty of Global's
new financing, and discussions were suspended.

         In March of 1996,  Global made a new offer to purchase COS, which offer
commenced the round of negotiations  that ultimately led to the execution of the
Redemption  Agreement  one year  later.  The new  offer  for  100% of COS  stock
consisted  of  $16  million  to  the  Company,  $8  million  to  Mr.  Manoogian,
distribution  of COS' cash in excess of $800,000 and a total of $1.75 million to
the  Eriksons  for income  continuation/consulting  paid out  evenly  over seven
years.  Global  was  informed  that (i) the  purchase  price was now  inadequate
considering  COS'  improved  earnings,  (ii) the offer  accorded  the Company no
control premium,  and (iii) Global would have to adequately prove its ability to
obtain financing.  Further, the Eriksons would not discuss any possible payments
to them for continued services while Global was negotiating the sales price with
the Company.


                                        8

<PAGE>



         Over the next eight months, these issues were resolved. The transaction
value of COS was  increased to $27  million,  and Mr.  Manoogian  agreed to a $1
million  control  premium for the Company,  resulting in the  allocation  of $19
million to the Company for its two-thirds interest. Mr. Manoogian also agreed to
accept $5 million for  five-eighths of his one-third  interest and to retain the
remainder of his  interest,  thus  limiting the buyer's  required  investment to
approximately  $24 million.  Finally,  to ensure  committed  financing  Global's
principal stockholder, GTCR, was substituted as the buyer.

         On  December 5, 1996,  the Board  convened to discuss the status of the
negotiations.  A draft of the  proposed  agreement  prepared  by GTCR was  under
review by Company  counsel,  but there were a number of  significant  unresolved
issues.  To  further  assure  itself  that the  price  under  consideration  was
appropriate and fair to the Company,  the Board determined that it was desirable
for the Company to have the  Transaction  reviewed by an independent  investment
banking  firm.  The Board  directed the officers to contact  investment  banking
firms to  determine  availability  and cost of a fairness  opinion and  directed
counsel  to inform  GTCR that the  Company  desired  to  obtain  advice  from an
investment banker before proceeding further.

         At the  December 5 meeting,  counsel  advised  the Board that  although
Delaware  corporation  law probably  required a stockholder  vote to approve the
proposed transaction, the Erikson votes alone would be enough for such approval.
Because GTCR's request for the Eriksons to enter into a voting  agreement raised
issues involving the Eriksons personally,  the Board considered whether it might
be appropriate for the Non-Erikson Stockholders of each class of stockholders to
have a meaningful  voice in approving the Transaction.  That voting  requirement
was later modified to provide that the Transaction  would not be deemed approved
unless a majority of all votes cast by the Non-Erikson Stockholders were cast in
favor of the  Transaction,  with the  holders  of  Class B  Common  Stock  being
accorded  the  required  and usual ten votes per  share.  This  requirement  was
acceptable to GTCR, and is an integral part of the  Transaction as now presented
to the stockholders.

         At a meeting on December 16, 1996, the Board reviewed the status of the
search  for  an  investment   banker,  and  discussed  various  aspects  of  the
Transaction, including GTCR's insistence on a $1 million breakup fee.

         On January 7, 1997, GTCR informed the Company that, given the length of
time that the parties had been  negotiating,  GTCR would  withdraw  its proposal
unless  the  Company  signed  a  definitive  agreement  prior  to the  Company's
retaining  an  investment   bank.  GTCR  also  insisted  that  any  compensation
arrangement  with an investment bank not be contingent on the success of this or
any alternative transaction.

         The Board convened to discuss this development on January 15, 1997. The
Board felt that as a one-third  stockholder  of COS as well as its President for
the last nine years,  and as an employee of Xerox for  seventeen  years where he
rose  to a  Senior  Marketing  Executive  level,  Mr.  Manoogian  could  provide
additional  reliable  information  regarding  the  fairness  of the price  under
consideration.  The Board recognized,  however, that Mr. Manoogian is neither an
expert nor a professional  appraiser and that any opinion he gave would be based
on his knowledge of and experience in the industry.

         Mr. Manoogian  reported orally and in followup memoranda that, based on
general  discussions  with certain of his  counterparts in the industry  without
reference to specific  transactions,  copier dealers like COS typically sold for
cash at five to six  times  earnings  before  interest  and taxes  ("EBIT")  and
approximately 40% to 50% of sales revenue. By comparison,  the price offered for
COS by GTCR was six times EBIT and 134% of sales revenue. Mr. Manoogian's report
further  confirmed  the Board's  belief that the price under  consideration  was
fair,  although such report should be viewed in  conjunction  with the statement
within  MLBAS'  opinion that it did not  undertake  any analysis  comparing  the
financial  terms  of the  Transaction  with  other  acquisitions  as it did  not
identify a sufficient number of relevant acquisitions.

         The  Board  faced  the  choice  of  risking  the  possible  loss of the
prospective  sale by insisting  upon a fairness  opinion  before  approving  the
transaction,  or of risking an unfavorable fairness opinion after execution of a
binding  agreement.  Given GTCR's position on the timing of an investment banker
opinion, the Board

                                        9

<PAGE>



determined that it had sufficient information about the fairness of the price to
place a  modest  break-up  fee at risk  pending  receipt  of a  formal  fairness
opinion.  The Company  then offered GTCR a break-up fee of $250,000 in the event
that the  Company  terminated  the  transaction  as a result  of an  unfavorable
investment banker opinion obtained after execution of the Redemption  Agreement.
GTCR ultimately agreed to this amount.

         The initial draft of the proposed Redemption Agreement prepared by GTCR
and transmitted to the Company in November 1996 included a requirement  that the
Eriksons execute a voting agreement requiring them to vote their shares in favor
of the  transaction.  GTCR provided a draft of the proposed voting  agreement in
early December of 1996.  Upon reviewing this draft,  the Eriksons were concerned
with the extent to which the agreement  required them to give up certain  rights
related to their  Common  Stock and Class B Common  Stock for the entire  period
from execution of the  Redemption  Agreement  until closing of the  transaction.
Specifically,  the Eriksons were personally  being asked to execute an agreement
which  contained a "no shop"  provision  which would prohibit or restrict during
the pendency of the  transaction  the Eriksons'  ability to sell or pledge their
stock or to  solicit a sale of their  stock to anyone  other  than  GTCR,  would
require that they vote their stock in favor of the transaction and/or grant GTCR
an  irrevocable  proxy to vote the stock with  respect to the  transaction,  and
would  commit the  Eriksons to  recommend  the  transaction  to the  Non-Erikson
Stockholders.

         Although the Eriksons believed that the proposed transaction was in the
Company's  best  interest,  they also felt that the  proposed  voting  agreement
required  them   individually   to  forfeit   valuable   rights  as  controlling
stockholders  of the Company and might subject them personally to certain risks,
including  the risk of  litigation.  They  believed  that they could  personally
suffer a  considerable  financial  detriment as a result of the  prohibition  on
marketing  their  stock of the  Company,  the  value of which  might  rise  upon
announcement  of the  transaction.  They  also  felt  that  the  timing  of this
prohibition on selling their stock was  inopportune,  as the Eriksons may desire
to sell some of their stock to fund a potentially  substantial obligation to the
Company  stemming  from a judgment in certain  litigation  (currently on appeal)
arising from the  Eriksons'  1990 attempt to effect a sale of their  controlling
interest in the Company to Insituform Technologies, Inc. The Eriksons noted that
no other  stockholders  would be required to agree to such restrictions on their
stockholder rights with respect to the transaction.

         To help the Eriksons measure the financial detriment they might suffer,
the Eriksons  engaged  Puglisi & Associates to determine the cost of put options
on the Eriksons  shares of the Company's stock at a series of exercise prices if
those put  options  were  part of a  protective  put  strategy  employed  by the
Eriksons.  Using the  Black-Scholes  Option Pricing Model,  Puglisi & Associates
determined  that the cost of put options on the Erikson's  stock purchased for a
ninety-day  period would be between  $427,000 (at the then current market price)
and  $960,000  (at a market  price of $14.00).  The cost would be greater if the
options extended for a longer period.

         At a Board meeting on January 15, 1997, citing the Puglisi & Associates
analysis,  the Eriksons  asked the Company to  compensate  them in the amount of
$300,000 each for agreeing to enter into the voting agreement. The Eriksons also
asked for  indemnification for any suits brought against them as stockholders in
connection  with  the  transaction  and for  their  attorney  fees  incurred  in
connection with  negotiating a voting  agreement.  Although the Board understood
the Eriksons' concerns, it was concerned about the reduction in the net proceeds
of the  transaction  to the  Company  if the  Company  paid  this  amount to the
Eriksons.

         At the same  meeting  and  after  considerable  discussion,  the  Board
directed  counsel  to ask GTCR to either (i)  eliminate  the  requirement  for a
voting  agreement  in  exchange  for the Company  agreeing to a break-up  fee of
$250,000  in the  event  of an  unfavorable  investment  banker  opinion  or the
Company's  stockholders not approving the transaction,  or (ii) pay the Eriksons
the  $600,000 out of GTCR funds.  GTCR  subsequently  offered to  eliminate  the
voting  agreement  entirely,  but only if the  break-up  fee amount  remained at
$500,000 for the stated events.

         The Board  discussed  GTCR's offer at a meeting on January 20, 1997. At
that  time,  the  Eriksons  informed  the Board  that  given  the  course of the
negotiations  and their  obligations as directors and controlling  stockholders,
including insider trading restrictions and requirements to disclose their voting
intentions, they

                                       10

<PAGE>



believed their rights as  stockholders  might be impaired or restricted  even if
the   transaction   proceeded   without  the  voting   agreement,   and  without
compensation.  The  Eriksons  further  informed  the  Board  that  there  was  a
possibility  that the  Eriksons  could  ultimately  decide to vote  against  the
transaction  as  stockholders,  after  voting  in  favor of the  transaction  as
directors.

         At a meeting  on  January  23,  1997,  the Board  determined  that with
respect to any matter in connection  with the possible sale of COS for which the
Company's counsel advised the Eriksons could be considered interested, a special
committee consisting of Messrs. Kincheloe and Hayes, as disinterested directors,
would determine the Company's  position.  After conferring  separately,  Messrs.
Kincheloe and Hayes  determined  and the Board  resolved that the Company should
offer a  break-up  fee of  $500,000  in the event of an  unfavorable  investment
banker opinion or disapproval by the Non-Erikson stockholders, but to propose no
break-up fee in the event that the Eriksons did not approve the  transaction  as
stockholders.

         Further negotiations and consideration of the Board's most recent offer
resulted in GTCR making a proposal on January 27, 1997.  GTCR suggested that COS
would  benefit from  engaging the  Eriksons as  consultants  for a period of two
years and for the Eriksons  agreeing not to compete with COS. GTCR then proposed
compensation  to each of the  Eriksons of $150,000  per year for two years for a
consulting and non-compete agreement (later changed to three years with $150,000
paid to each promptly after Closing for non-compete, $50,000 each promptly after
Closing for consulting  services,  and $50,000 each for  consulting  services on
each of the first and second anniversaries  thereafter, if available and able to
provide  consulting  services).  GTCR further  proposed (i) a return to a voting
agreement with the Eriksons with no compensation, (ii) a breakup fee of $250,000
in the event of an unfavorable  investment  banker opinion or disapproval by the
Non-Erikson  Stockholders,  and (iii) an increase in the minimum cash to be left
in COS at closing from $800,000 to $1.2 million.

         This  proposal was  considered by the Board at a meeting on January 30,
1997.  As a  result  of  the  reinstatement  of  the  requirement  for a  voting
agreement,  the  Eriksons  again  asked to be  indemnified  as  stockholders  in
connection  with the  transaction,  and to be reimbursed for their legal fees in
drafting  and  negotiating  the voting  and,  consulting  agreements.  The Board
discussed the Eriksons'  request and was amenable to the Eriksons' request as to
the voting  agreement so long as legal counsel could be satisfied with the terms
of the indemnification.  (See "Related Agreements -- Erikson Voting Agreement").
Messrs.  Kincheloe  and Hayes met  separately,  then again with the full  Board.
While the Board felt that GTCR's proposal was satisfactory in most respects,  it
did not find satisfactory the increase in minimum cash left in COS from $800,000
to $1.2 million,  as it was  equivalent to decreasing the purchase price for COS
by $400,000. While meeting separately, Messrs. Kincheloe and Hayes contacted Mr.
Manoogian  and advised him that the Board  strongly  opposed  reducing the sales
price and that he and GTCR could not reduce the Company's proceeds to offset all
or  part  of  what  COS  would  pay  the   Eriksons  for  the   consulting   and
non-competition  agreements.  The  meeting  ended  without a formal  decision on
whether to accept or reject GTCR's most recent proposal.

         After  considering  the  Company's  concerns,  on February 3, 1997 GTCR
offered to drop the cash requirement back to $800,000, thus offering the Company
the full price for which it had negotiated;  and with a voting agreement as part
of the  transaction,  it was also clear that the Eriksons would vote in favor of
the  transaction as  stockholders  so long as there is an affirmative  vote of a
majority of votes cast by the Non-Erikson  Stockholders.  Counsel then proceeded
to  negotiate  the  terms of the  various  ancillary  documents  concerning  the
Transaction.

         By March 6, 1997, it appeared to counsel for the Company that all terms
of the proposed  transaction were satisfactory to the Company. On March 7, 1997,
the Board met to consider the Transaction in the final form  represented in this
Proxy Statement,  and found it to be in a form sufficient for  recommendation to
the Company's stockholders. The Board then voted to approve the Transaction.


                                       11

<PAGE>



Fairness Opinion

         At the April 3, 1997  meeting  of the  Board,  Merrill  Lynch  Business
Advisor  Services,  a  division  of  Merrill  Lynch,  Pierce,  Fenner  and Smith
Incorporated ("MLBAS") delivered its opinion to the Board to the effect that, as
of such date, the proposed  consideration to be received by Cerberonics pursuant
to the  Redemption  Agreement  was fair  from a  financial  point of view to the
Company.  MLBAS subsequently delivered to the Board its written opinion dated as
of April 4, 1997, to the foregoing effect.

         The full text of MLBAS's opinion dated as of April 4, 1997,  which sets
forth,  among other  things,  assumptions  made,  procedures  followed,  matters
considered,  and limitations on the scope of review  undertaken,  is attached as
Exhibit F to this Proxy Statement and is incorporated  herein by reference.  The
Company's stockholders are urged to read the MLBAS opinion in its entirety. This
summary of the opinion of MLBAS set forth in this Proxy  Statement  is qualified
in its entirety by reference to the full text of such opinion.

         MLBAS'S  OPINION IS DIRECTED TO THE  COMPANY'S  BOARD OF DIRECTORS  AND
ADDRESSES  ONLY  THE  FAIRNESS,   FROM  A  FINANCIAL   POINT  OF  VIEW,  OF  THE
CONSIDERATION  TO  BE  RECEIVED  BY  CERBERONICS   PURSUANT  TO  THE  REDEMPTION
AGREEMENT.  THE OPINION  DOES NOT ADDRESS THE  UNDERLYING  BUSINESS  DECISION TO
PROCEED WITH THE TRANSACTION AND DOES NOT CONSTITUTE, NOR SHOULD IT BE CONSTRUED
AS, A  RECOMMENDATION  TO ANY HOLDER OF THE  COMPANY'S  COMMON  STOCK OR CLASS B
COMMON  STOCK AS TO HOW  SUCH  STOCKHOLDER  SHOULD  VOTE AT THE  MEETING  ON THE
TRANSACTION OR ANY OTHER MATTER IN CONNECTION THEREWITH.

         In arriving at its opinion, among other things, MLBAS has: (i) reviewed
the Redemption  Agreement and the proposed  financial terms of the  Transaction;
(ii) reviewed audited financial information for the five fiscal years ended June
30,  1992  through  1996 for the  Company  and  COS,  as well as  various  other
unaudited  financial  information  for the Company and COS;  (iii) compared COS'
historical  results of operations  with that of certain public  companies  which
MLBAS considered  relevant for its analysis;  (iv) visited COS' headquarters and
conducted  discussions  with COS' senior  management  concerning the history and
past  performance  of COS' current  business  operations,  and reviewed  certain
forecasts  provided to MLBAS in the course of such  discussions  relating to the
business,  earnings,  cash flow,  assets and  prospects of COS; and (v) reviewed
such  other   financial   studies  and   analyses  and   performed   such  other
investigations  and taken into account such  accepted  financial  and  valuation
procedures and  considerations  and such other matters as MLBAS deemed relevant,
including  its  assessment of general and local  economic,  market and financial
conditions which have an impact on the industry in which COS operates.

         While  MLBAS  reviewed  the  financial  terms of  certain  transactions
involving  the  acquisition  of  companies  in  industries  comparable  to  COS'
operations,  MLBAS did not identify a  sufficient  number of  acquisitions  with
adequate available  information that it deemed to be relevant for the purpose of
its analysis and,  accordingly,  did not  undertake  any analysis  comparing the
financial terms of the Transaction with other acquisitions.

         In preparing its opinion, MLBAS relied on the accuracy and completeness
of all financial and other  information  supplied or otherwise made available to
it by the  Company  and  COS,  or  which  are  publicly  available,  and did not
independently  verify such information or undertake an independent  appraisal or
valuation of the assets or  liabilities  of COS.  With respect to any  financial
forecasts and projected  expense  reductions  provided to MLBAS by and discussed
with COS' management,  MLBAS assumed that such financial forecasts and projected
expense reductions  (together with the assumptions and bases therefor) have been
reasonably  prepared  and reflect the best  currently  available  estimates  and
judgment of COS' management as to the expected future  financial  performance of
COS.

         MLBAS's  opinion  is also  given on the  assumption  that  there are no
undisclosed or unexpected conditions which would affect the value of COS' assets
or the financial condition or operations of COS or the expected future financial
performance of COS. MLBAS's opinion is necessarily based upon market and general
economic conditions existing as of the date of its opinion.

                                       12

<PAGE>



         The terms of MLBAS's engagement are limited to expressing an opinion as
to whether  the  consideration  to be received  by  Cerberonics  pursuant to the
Redemption  Agreement is fair to the Company from a financial point of view, and
MLBAS was not  requested to assist and did not  participate  in  structuring  or
negotiating the terms of the Transaction.  In addition, MLBAS's opinion does not
address  the  relative  merits  of  the  Transaction  and  alternative  business
strategies involving COS, including the sale of COS to third parties.

         In connection  with  rendering  its opinion,  MLBAS  performed  certain
financial analyses,  consisting of those summarized below. The summary set forth
below does not purport to be a complete description of the analyses performed by
MLBAS in this regard,  although it describes all material analyses  performed by
MLBAS. The preparation of a fairness opinion involves various  determinations as
to the most  appropriate  and  relevant  methods of  financial  analysis and the
application of these methods to the  particular  circumstances  and,  therefore,
such an opinion is not  readily  susceptible  to a partial  analysis  or summary
description. Accordingly, notwithstanding the separate factors summarized below,
MLBAS  believes that its analyses must be considered in their  entirety and that
selecting  portions  of its  analyses  and  factors  considered  by it,  without
considering all analyses and factors,  or attempting to ascribe relative weights
to some or all such analyses and factors, could create an incomplete view of the
evaluation process underlying MLBAS's opinion.

         In  performing  its  analyses,  MLBAS made  numerous  assumptions  with
respect to industry  performance,  general business and economic  conditions and
other  matters,  all of which are beyond the  control of MLBAS,  the Company and
GTCR. The analyses  performed by MLBAS are not necessarily  indicative of actual
values  or  actual  future  results,  which  may be  significantly  more or less
favorable  than  suggested by such  analyses.  In addition,  the analyses do not
purport to be  appraisals  or to reflect the prices that may be obtained for COS
or its  securities  or assets at the present  time or at any time in the future.
Such analyses were prepared  solely as part of MLBAS's  analysis of the fairness
of the  consideration  to be received by Cerberonics  pursuant to the Redemption
Agreement  and were  provided to the Board in  connection  with the  delivery of
MLBAS's opinion.  With respect to the comparison of selected  companies analysis
summarized  below,  no public company  utilized as a comparison,  of course,  is
identical to COS and such analyses  necessarily  involve complex  considerations
and   judgments   concerning   the   differences   in  financial  and  operating
characteristics  of the companies and other factors that could affect the public
trading values of the companies concerned.

         The following is a summary of the material analyses  presented by MLBAS
to the Board in connection with its April 4, 1997 opinion.

         Discounted  Cash Flow Analysis.  MLBAS  performed  discounted cash flow
analyses  (i.e., an analysis of the present value of the projected cash flows of
the periods and at the discount  rates  indicated)  for COS based on projections
prepared using  assumptions  supplied by COS'  management of COS' net cash flows
for the period commencing on December 31, 1997 through June 30, 2006, inclusive,
using  discount  rates ranging from 16% through 18%,  inclusive,  and a terminal
multiple of  earnings  before  interest  and taxes of 8x.  MLBAS's  calculations
indicated a range of values based on  discounted  cash flows of $28.7 million to
$24.8 million, without giving effect to potential synergies that may result from
the Transaction.  After giving effect to such potential synergies, as well as to
COS' available cash,  outstanding debt and off-balance sheet liabilities,  MLBAS
estimated an indicated  range of values based on a discounted cash flow analysis
of $32.0 million to $27.7 million.

         Comparison of Selected  Companies.  MLBAS reviewed and compared certain
ratios and public market multiples  relating to publicly available data compiled
by Institutional Brokers Estimate System for a group of selected companies which
MLBAS deemed to be relevant,  consisting  of Danka  Business  Systems PLC,  IKON
Office Solutions,  Inc., Pitney Bowes, Inc. and Xerox Corp.  (collectively,  the
"COS Selected  Companies").  Based on a review of such  information  for the COS
Selected  Companies,  MLBAS determined that the relevant range based on the mean
and median for the latest  twelve months  available  earnings  before  interest,
taxes, depreciations and amortization ("LTM EBITDA") to be 12.3x to 13.7x.

         MLBAS then observed that as a result of, among other  factors,  (i) the
higher publicly  available  estimated earnings growth rates for the COS Selected
Companies as compared with the growth rate estimated

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<PAGE>



by COS  management  for  COS,  (ii)  the  substantially  smaller  size of COS as
compared to the COS Selected Companies and (iii) the  diversification of the COS
Selected  Companies into businesses  with higher  margins,  the application of a
discount  estimated  at 60% to the  foregoing  multiples  would be  necessary to
render the foregoing range of LTM EBITDA  meaningful for  comparative  purposes.
This adjustment  yielded a range of adjusted LTM EBITDA of 4.9 x to 5.5x,  which
resulted in an implied valuation range of $24.1 million to $26.9 million.  After
giving effect to the potential  synergies that may result from the  Transaction,
as well as to COS'  available  cash,  outstanding  debt  and  off-balance  sheet
liabilities,  MLBAS  estimated  an  indicated  range of implied  values based on
adjusted LTM EBITDA multiples of the COS Selected  Companies of $26.9 million to
$30.0 million.

         MLBAS has been  retained by the Board as an  independent  contractor to
express an opinion to the Board with respect to the Transaction and will receive
a fee for its  services.  MLBAS was  selected as the  provider  of the  fairness
opinion  because it, among other things,  regularly  engages in the valuation of
businesses  and  securities  in  connection  with mergers and  acquisitions.  In
addition, in the ordinary course of its securities business, affiliates of MLBAS
may  actively  trade debt and/or  equity  securities  of the Company for its own
account and the accounts of its customers,  and MLBAS, therefore,  may from time
to time hold a long or short position in such securities.

         The  Company  and MLBAS  have  entered  into a letter  agreement  dated
February 28, 1997 relating to the services to be provided by MLBAS in connection
with the  Transaction.  The Company has paid MLBAS a cash fee of $75,000 and has
agreed to pay MLBAS an additional  cash fee of $75,000 payable at the time MLBAS
delivered  its  opinion.  In such  letter,  the Company also agreed to reimburse
MLBAS for its reasonable  out-of-pocket expenses incurred in connection with its
advisory work,  including the  reasonable  fees and  disbursements  of its legal
counsel,  and to indemnify  MLBAS  against  certain  liabilities  relating to or
arising out of the Transaction,  including  liabilities  which might arise under
the federal securities laws.

Recommendation of the Board of Directors

THE BOARD OF DIRECTORS  BELIEVES THAT THE TRANSACTION IS FAIR TO AND IN THE BEST
INTEREST OF THE COMPANY.  THE BOARD OF DIRECTORS  HAS  UNANIMOUSLY  APPROVED THE
TRANSACTION AND RECOMMENDS THAT YOU VOTE FOR APPROVAL OF THE TRANSACTION.

Principal Terms of the Transaction

         The terms of the Transaction are set forth in the Redemption Agreement.
The principal terms of the Transaction are summarized below.

         Recapitalization.  The entire  outstanding  equity  interest  of COS is
represented by 1,200 shares of a single class of common stock,  two-thirds  (800
shares) of which are held by Cerberonics and one-third (400 shares) of which are
held by Mr.  Manoogian.  Prior to  Closing,  COS will amend its  certificate  of
incorporation  to  authorize  the  issuance  of three  classes of common  stock,
Classes A, B and C. The  Redemption  Agreement  then provides that each share of
COS' existing  common stock will be exchanged for .61875,  .37125 and .01 shares
of the new Class A, B and C common stock, respectively (the "Recapitalization"),
after  which  Cerberonics  will  hold  two-thirds  and Mr.  Manoogian  will hold
one-third of each of COS' three classes of stock, respectively.

         Financing.  The Redemption  Agreement provides that COS will enter into
commercially  reasonable credit facilities to be arranged by GTCR to provide for
up to approximately $24 million in loans in connection with the Transaction (the
"Financing").  The  arrangement of such financing is not a condition to Closing.
If the  Financing is not arranged  prior to Closing and all other  conditions to
Closing are met, the  Redemption  Agreement  provides that the Investors will be
responsible for funding on commercially  reasonable  terms the sums necessary to
consummate the Transaction.


                                       14

<PAGE>



         Redemption.   At  Closing,  and  after  the  Recapitalization  and  the
Financing (or alternatively, a financing by the Investors), COS will redeem (the
"Redemption") all the shares of COS Class A (495),  Class B (297) and Class C(8)
common  stock held by  Cerberonics  at a price of $23,750  per share for a total
redemption price of $19 million (the "Redemption  Price"). The Redemption Price,
net of certain  holdbacks and adjustments as discussed  below,  shall be paid to
Cerberonics  by  wire  transfer  or  cashier's  check  at  Closing.   After  the
Redemption,  neither  Cerberonics  nor the Company will hold any interest in the
capital stock of COS.

         The $19 million Redemption Price includes the Company's $18 million pro
rata share of the $27  million  value of COS  negotiated  by the  parties to the
Redemption  Agreement,  plus a $1  million  control  premium  for the  Company's
two-thirds  controlling interest.  Such amounts were negotiated exclusive of the
Company's pro rata interest in the  approximately $5 million  distribution to be
made by COS prior to the Redemption.

         Investment.  Contemporaneous  with the Redemption,  the Investors shall
purchase  from COS 49.5  shares  and .5 shares of COS Class A and Class C common
stock, respectively,  at a price of $20,000 per share for a total purchase price
of $1 million (the "Investment").

         Stock Purchase. Contemporaneous with the Redemption and the Investment,
the Investors shall purchase (the "Stock Purchase") from Mr. Manoogian 247.5 and
2.5 shares of COS Class A and Class C common stock, respectively,  at a price of
$20,000 per share for a total purchase price of $5 million (the "Stock  Purchase
Price").  The Stock Purchase Price, net of certain  holdbacks and adjustments as
discussed  below,  shall be paid to Mr.  Manoogian by wire transfer or cashier's
check at Closing. After the Stock Purchase, Mr. Manoogian will hold 148.5 shares
(100%) of the COS Class B common stock  outstanding  and 1.5 shares  (33.33%) of
the COS Class C common  stock  outstanding,  while the  Investors  will hold 297
shares  (100%)  of the COS  Class A  common  stock  outstanding  and 3.0  shares
(66.67%) of the COS Class C common stock outstanding.

         The Stock  Purchase  Price  represents  that portion (5/8) of the value
ascribed to Mr. Manoogian's  one-third interest in COS that the Investors are to
acquire.  The value ascribed to Mr.  Manoogian's  interest in COS is $8 million,
which equals one-third of COS' negotiated $27 million value,  less the Company's
$1  million  control  premium.  The  Investors  are to  acquire  250 of the  400
post-Recapitalization  shares of COS Class A, B and C common stock to be held by
Mr. Manoogian, for which they are to pay $5 million (250/400 x $8 million). Such
amounts were negotiated exclusive of Mr. Manoogian's pro rata interest in the $5
million distribution to be made by COS prior to the Redemption.

         Escrow Arrangements.  The Redemption Agreement requires Cerberonics and
Mr.  Manoogian to place a total of $1.5 million in escrow (the "Escrow  Sum") at
Closing  to cover  certain  indemnity  obligations  that  may  arise  under  the
Redemption  Agreement  (the  "Escrow  Arrangement").  The  Escrow  Sum  is to be
comprised of $1,055,556 from Cerberonics, which amount will be deducted from the
Redemption Price otherwise payable to Cerberonics;  $277,778 from Mr. Manoogian,
which amount will be deducted from the Stock Purchase Price otherwise payable to
Mr.  Manoogian;  and  $166,666,  which  amount Mr.  Manoogian  shall  satisfy by
delivering  8.33 shares of COS Class B common stock to the escrow agent.  Claims
arising  from  indemnity  obligations  exclusive  to either  Cerberonics  or Mr.
Manoogian  shall be satisfied from that portion of the Escrow Sum contributed by
the respective party whose  obligation  gives rise to the claim.  Claims arising
from mutual indemnity obligations shall be allocated 19/27ths to Cerberonics and
8/27ths to Mr. Manoogian and satisfied from the respective portion of the Escrow
Sum  contributed by each.  Amounts shall be paid out of the Escrow Sum to either
COS or the Investors,  depending on which party suffers the economic loss giving
rise to the respective indemnity claim. The balance of the portion of the Escrow
Sum contributed by Cerberonics and Mr.  Manoogian that is not paid or claimed in
satisfaction  of indemnity  obligations  within 365 days after  Closing shall be
returned  to  Cerberonics  or  Mr.  Manoogian,  respectively.  A  more  complete
description  of the escrow  arrangements  can be found in the copy of the Escrow
Agreement included as Exhibit B to this Proxy Statement.

         Redemption Price and Stock Purchase Price  Adjustments.  The Redemption
Agreement  provides that the Redemption Price to be paid to Cerberonics shall be
reduced by 19/27ths and the Stock Purchase Price to be paid Mr.  Manoogian shall
be reduced by 8/27ths of the amount of certain indebtedness of COS to

                                       15

<PAGE>



be  paid  at  Closing  ("Paid   Indebtedness")   and  certain   working  capital
deficiencies of COS. As of the date of the Redemption Agreement,  March 7, 1997,
the Redemption Agreement anticipates that there will be no Paid Indebtedness.

         The Redemption  Agreement  provides that a preliminary  working capital
deficiency  adjustment  ("Preliminary  Adjustment")  shall be made at Closing if
COS' estimated working capital at Closing as reflected on a preliminary  closing
balance sheet to be delivered within 3 to 7 days prior to Closing  ("Preliminary
Working  Capital")  is less than the amount of COS'  month-end  average  working
capital for the six full calendar months prior to the month in which the Closing
occurs,  less $50,000 (the "Six Month Average").  The Six Month Average shall be
calculated  assuming  that the cash  component of working  capital at the end of
each month is the lesser of COS' actual cash or $800,000.

         The Redemption  Agreement further provides for an audit, within 90 days
of  Closing,  of  the  preliminary  closing  balance  sheet  used  to  calculate
Preliminary  Working  Capital.  If  such  audit  results  in a  working  capital
determination  ("Audited Working Capital") lower than both the Six Month Average
and Preliminary Working Capital, the Redemption and Stock Purchase Prices are to
be further  reduced  (allocated  19/27ths  and  8/27ths to  Cerberonics  and Mr.
Manoogian, respectively) by the lesser of the difference between Audited Working
Capital and the Six Month  Average or the  difference  between  Audited  Working
Capital and  Preliminary  Working  Capital.  If Audited  Working Capital exceeds
Preliminary Working Capital,  the Redemption and Stock Purchase Prices are to be
increased  (allocated  19/27ths and 8/27ths to  Cerberonics  and Mr.  Manoogian,
respectively)  by the lesser of the difference  between  Audited Working Capital
and Preliminary  Working Capital or the difference between the Six Month Average
and  Preliminary  Working  Capital.  Any adjustments to the Redemption and Stock
Purchase  Prices  based on the audit  (either  up or down) are to be paid by the
respective parties in immediately  available funds within 10 days of delivery of
the audited balance sheet.

         The Redemption  Agreement also provides that if the Transaction  closes
after July 4, 1997 and COS  retains  its cash flow after such date,  Cerberonics
and Mr.  Manoogian  shall  earn  interest,  beginning  July 5,  1997,  on  their
respective  Redemption  Price and Stock Purchase Price,  calculated at the prime
rate announced by The Chase Manhattan Bank on July 5, 1997.

         Representations  and  Warranties.  The  Redemption  Agreement  contains
various  representations and warranties of the parties thereto.  With respect to
COS and its stockholders,  the Redemption Agreement contains representations and
warranties as to, among other things, the following: (i) COS' capitalization and
rights of others to acquire COS capital  stock;  (ii) due  authorization  of the
shares  to be  issued  to  Investors  pursuant  to the  investment;  (iii)  COS'
corporate organization,  good standing,  qualification and corporate power to do
business;  (iv) absence of  subsidiaries,  except as set forth on schedule(s) to
the Redemption Agreement;  (v) subject to the required approval by the Company's
stockholders,  the  power  and  authority  and due and  valid  authorization  to
execute, deliver and perform the Redemption Agreement;  (vi) that the execution,
delivery and performance of the Redemption  Agreement do not violate or conflict
with  laws,  agreements  or  articles  of  incorporation  and  bylaws  or permit
acceleration of the maturity of indebtedness; (vii) the fair presentation of the
financial condition,  results of operations and cash flows of COS within certain
financial statements  delivered to the Investors;  (viii) except as set forth on
schedule(s) to the Redemption  Agreement,  the absence of certain  actions since
December 31, 1996; (ix)  completeness of the schedule of real property  attached
to the Redemption  Agreement and title and  encumbrances  related  thereto;  (x)
compliance with certain licenses and permits;  (xi) intellectual  property owned
by COS or in which it has  rights,  title  thereto  and  noninfringement  on the
intellectual  property of others;  (xii) compliance with material laws,  permits
and orders and conduct of business in  accordance  with  environmental  laws and
regulations;   (xiii)  maintenance  of  insurance;   (xiv)  maintenance  of  and
compliance with  applicable  laws and regulations of employee  benefit plans and
arrangements;  (xv) the validity and enforceability of certain contracts;  (xvi)
absence of claims and legal  proceedings,  except as set forth on schedule(s) to
the  Redemption  Agreement;  (xvii) the adequacy and accuracy of tax returns and
tax filings,  except as set forth on schedule(s)  to the  Redemption  Agreement;
(xviii)  identity and  continuing  employment of certain  personnel,  summary of
certain employment agreements and compliance with labor laws; (xix) continuation
of business  relationships;  (xx)  validity of accounts  receivable  and lack of
encumbrances  on  inventory  and  accounts  receivable,  except  as set forth on
schedule(s) to the

                                       16

<PAGE>



Redemption Agreement; (xxi) list of bank accounts; (xxii) lack of agents, except
as set forth on  schedule(s)  to the Redemption  Agreement;  (xxiii)  absence of
warranty claims or knowledge of facts giving rise to such claims,  except as set
forth on  schedule(s) to the  Redemption  Agreement;  (xxiv) absence of brokers,
finders  or  sales  agents;   (xxv)  absence  of  interest  by  management   and
stockholders  in  competitors,  suppliers and customers;  (xxvi)  description of
management  or  employee  indebtedness  to  or  from  COS;  (xxvii)  absence  of
unreported  liabilities.  except as set forth on  schedule(s)  to the Redemption
Agreement;  (xxviii) completeness of records made available to the Investors and
the absence of any material untrue  statement in the Redemption  Agreement or in
any document delivered to Investors pursuant to the Redemption Agreement; (xxix)
absence of liens or  encumbrances  on the COS capital  stock to be redeemed from
Cerberonics   or  purchased  from  Mr.   Manoogian;   and  (xxx)  the  corporate
organization, good standing, qualification and corporate power to do business of
the Company and Cerberonics.

         With  respect  to the  Investors,  the  Redemption  Agreement  contains
various representations and warranties as to, among other things, the following:
(i) the due  organization,  valid  existence  and good  standing of GTCR and its
power and authority to enter into and perform the Redemption Agreement; (ii) the
due  authorization by each of the Investors to execute,  deliver and perform the
Redemption Agreement;  (iii) the due and valid execution by the Investors of the
Redemption  Agreement;  (iv) the validity and  enforceability  of the Redemption
Agreement  against  the  Investors;   (v)  that  the  execution,   delivery  and
performance  of the  Redemption  Agreement do not violate or conflict with laws,
agreements  or  articles  of   incorporation   and  bylaws  of  GTCR  or  permit
acceleration of the maturity of indebtedness;  (vi) absence of brokers,  finders
or sales agents;  (vii) investment  representations  with respect to the private
placement of the COS capital stock to be acquired by the  investors;  and (viii)
absence of undisclosed agreements.

         Covenants of the Parties.  The Redemption  Agreement  provides that the
Company shall promptly take action to convene a meeting of its  stockholders  to
vote upon the Transaction.  The Redemption  Agreement  further provides that the
Board shall recommend approval by the Company's  stockholders of the Transaction
and take all lawful action to solicit such approval.  The  Redemption  Agreement
contemplates that the Board shall seek and condition approval of the Transaction
on approval by a majority of the votes cast by the Non-Erikson Stockholders, and
that such a majority vote, coupled with the vote of the Eriksons pursuant to the
Voting Agreement, shall be sufficient to approve the Transaction.

         The Redemption  Agreement also provides that COS will not, and that the
Company, Cerberonics and Mr. Manoogian shall cause COS not to, solicit, initiate
or knowingly encourage submissions of offers or proposals from others to acquire
COS' assets or capital  stock,  except that COS,  and others on its behalf,  may
respond to alternative proposals by third parties, other than the Investors, and
negotiate a binding definitive  agreement relating thereto, if required to do so
to discharge the fiduciary duty of the Board to the Company's stockholders.

         In addition,  the Redemption Agreement provides that from March 7, 1997
to Closing,  COS will not, and that the Company,  Cerberonics and Mr.  Manoogian
shall  cause  COS not to,  engage  in any  material  activity  or  engage in any
material  transaction  outside the ordinary  course of business.  The Redemption
Agreement  also  provides  that through  Closing,  COS shall and/or the Company,
Cerberonics  and Mr.  Manoogian shall cause COS to (i) record  transactions  and
prepare financial  statements in accordance with generally  accepted  accounting
principles, consistent with past practice, (ii) promptly notify the Investors of
material  defaults under agreements or of any material  adverse  changes;  (iii)
terminate  activities,  discussions and negotiations  with anyone other than the
Investors  regarding  the sale of COS' assets or capital  stock or the merger or
other  business  combination  relating to COS; and (iv) notify the  Investors of
alternative  proposals  from third  parties and update the  Investors  as to the
status of any actions relating thereto.

         Conditions to Closing.  Closing of the Transaction is subject to, among
other  conditions,  the vote in favor of the  Transaction  of a majority  of the
votes  cast  by  the  Non-Erikson  Stockholders.  As of  the  record  date,  the
Non-Erikson  Stockholders  held 1,060,299  shares of  outstanding  Common Stock,
entitling them to cast 1,060,299 votes, and 48,791 shares of outstanding Class B
Common Stock,  entitling  them to cast 487,910  votes,  for a total of 1,548,209
votes  eligible to be cast by the  Non-Erikson  Stockholders.  As of the date of
this  Proxy  Statement,   the  Company  has  made  no  determination   regarding
resolicitation  of proxies if the  Transaction  is not approved by a majority of
the votes cast by the Non-Erikson Stockholders.

                                       17

<PAGE>




         In  addition,  the  Transaction  is subject to the vote in favor of the
Transaction of a majority of the votes  entitled to be cast by all  stockholders
of the Company.  With respect  thereto,  the Eriksons have entered into a voting
agreement  (See "Related  Agreements -- Erikson Voting  Agreement")  pursuant to
which  each  of  them  agrees,  so  long  as a  majority  of  votes  cast by the
Non-Erikson Stockholders are voted in favor of the Transaction, to vote in favor
of the Transaction  all of the shares of the Company's  Common Stock and Class B
Common Stock held by each of them, exclusive of 2,246 shares of Common Stock and
2,246 shares of Class B Common Stock held jointly by George Wm. Erikson with his
spouse. Pursuant to such voting agreement, in the event a majority of votes cast
by the  Non-Erikson  Stockholders  are  voted in favor of the  Transaction,  the
Eriksons  have  agreed  to  cast  at  least  2,568,486  votes  in  favor  of the
Transaction,  which number of affirmative  votes alone would satisfy Section 271
of the Delaware  Corporation  Law requiring the  affirmative  vote of at least a
majority of all votes entitled to be cast for approval of the Transaction.

         Indemnification.  The  Redemption  Agreement  sets forth the Company's,
Cerberonics'  and Mr.  Manoogian's  obligations  to indemnify  the Investors and
their officers,  directors and affiliates from and against costs arising out of:
their  misrepresentation,  breach or default  of or under any of the  covenants,
agreements or other  provisions set forth in the  Redemption  Agreement or other
agreements  related  thereto;  claims or liability  arising out of litigation or
potential  litigation  for which COS should have but did not establish a reserve
within its  financial  statements;  and  tortious  acts or omissions of COS, the
Company,  Cerberonics  or Mr.  Manoogian  that  occurred  prior to Closing.  The
indemnification  obligations  are  generally  borne jointly and severally by the
Company and Mr.  Manoogian,  except with respect to  liability  assigned to each
based on, among other factors, the knowledge of the respective parties. There is
no  indemnification  obligation until the aggregate  indemnification  obligation
exceeds $50,000.  Thereafter,  except with respect to liability arising from the
breach of certain  representations  and warranties,  there is liability only for
amounts in excess of $50,000 up to an amount equal to 10% of the total  combined
Redemption  and  Stock  Purchase  Prices  (i.e.  an  approximate  limit  of $2.4
million).  With respect to liability arising from the breach of  representations
and  warranties  relating  to (i) COS'  capitalization  and  rights of others to
acquire COS capital stock,  (ii) due authorization of shares to be issued to the
Investors  pursuant to the  Investment,  (iii) the  adequacy and accuracy of tax
returns and tax filings,  and (iv) the absence of liens or  encumbrances  on the
COS  capital  stock  to be  redeemed  from  Cerberonics  or  purchased  from Mr.
Manoogian,  the indemnity  obligation of the Company and Mr.  Manoogian shall be
unlimited.

         Break-Up  Fees. The  Redemption  Agreement  provides for the payment of
certain fees in the event the Redemption  Agreement is terminated  under certain
circumstances.  If the Investors  terminate the Redemption  Agreement other than
(i) upon mutual  consent of the  parties to the  Redemption  Agreement,  (ii) in
response  to  litigation,  pending  or  threatened,  restraining  or  seeking to
restrain  the  transactions  contemplated  by the  Redemption  Agreement,  (iii)
because certain  conditions to Closing were not satisfied,  (iv) upon withdrawal
by the Board of its approval of the Redemption  Agreement,  (v) upon issuance of
an unfavorable  fairness opinion from an investment banker, or (vi) rejection by
the Company's stockholders of the Transaction, or the Company's failure to close
the Transaction  after  satisfaction of the conditions  thereto,  the Redemption
Agreement provides for the payment by the Investors of $1 million to Cerberonics
and Mr.  Manoogian (to be allocated  19/27ths to Cerberonics  and 8/27ths to Mr.
Manoogian).  Similarly,  if the Company terminates the Redemption Agreement upon
entering into a definitive  agreement  with a third party for the sale of either
the assets or capital  stock of COS, or the Board  withdraws its approval of the
Redemption  Agreement,  the Redemption Agreement provides for the payment by the
Company of $1 million to the Investors.  The Redemption  Agreement also provides
that the Company  shall pay a fee of $250,000 to the  Investors if the Company's
stockholders fail to approve the Transaction, or if the Company does not proceed
with the Transaction because an investment banker issues an unfavorable fairness
opinion regarding the Redemption Agreement.  In such case, if the Company enters
into a definitive agreement with a third party for the sale of either the assets
or capital stock of COS within one year  thereafter,  the  Redemption  Agreement
provides  for the  payment  by the  Company  of an  additional  $750,000  to the
Investors.



                                       18

<PAGE>



         Related Agreements.

         Erikson Consulting and  Non-Competition  Agreement.  In connection with
the Transaction, the Redemption Agreement contemplates that each of the Eriksons
shall  enter  into  a  three-year   consulting  and  non-competition   agreement
("Consulting  Agreement")  with COS  effective  as of  Closing.  Pursuant to and
during  the  term  of  the  Consulting  Agreement,  the  Eriksons  shall  at all
reasonable  times be available to COS on a mutually  agreeable "as needed" basis
to serve as an advisor and  consultant to COS, its  management  and its Board of
Directors in connection  with the  operation of COS'  business.  The  Consulting
Agreement provides that each of the Eriksons shall be available to COS to render
such services at least one and up to three days each month,  which  services are
to be  scheduled  and  performed  in a manner that will not  detract  from their
performance  as  directors  and  officers of the  Company.  The Board  currently
monitors the performance by the Company's directors and officers,  including the
Eriksons,  of their respective  duties and will continue to do so after Closing,
including  whether services  rendered by the Eriksons pursuant to the Consulting
Agreement  are  scheduled  and  performed in a manner that will not detract from
their  performance  as directors and officers of the Company.  The directors and
officers of the Company remain subject to fiduciary duties owed to the Company's
holders of Common Stock and Class B Common Stock.

         The  Consulting  Agreement  also  provides  that the Eriksons will keep
confidential  certain  information  relating  to COS  and the  operation  of its
business  which  they  may  obtain  while  rendering  services  pursuant  to the
Consulting  Agreement.  In addition,  the Consulting Agreement provides that the
Eriksons shall not,  during the term of the  Consulting  Agreement and for up to
two years  thereafter,  engage in any manner (except  through  ownership of less
than 5% of a publicly  traded company) in any business that competes with COS or
solicit for employment elsewhere the employees of COS.

         In return for the Eriksons'  non-disclosure and non-compete agreements,
the  Consulting  Agreement  provides  for the payment of $150,000 to each of the
Eriksons promptly after Closing.  In contemplation of the consulting services to
be rendered by the Eriksons,  the Consulting  Agreement provides for the payment
of  $150,000  to each  of the  Eriksons.  Unless  COS  and  the  Eriksons  agree
otherwise,  such amount is scheduled to be paid to each of the Eriksons in three
annual  $50,000  payments,  the first of which is due promptly after Closing and
the  remaining  two of which are due,  respectively,  on the  first  and  second
anniversaries  thereof,  if the Eriksons are  available and able to provide such
services.  The Consulting  Agreement  contemplates that late payments of amounts
due thereunder  shall bear interest at the rate of eight percent per annum until
paid. A copy of the Consulting  Agreement is included as Exhibit D to this Proxy
Statement.

         Erikson Voting  Agreement.  In connection with the condition to Closing
that a majority  of the votes  entitled  to be cast by all  stockholders  of the
Company be cast in favor of the  Transaction,  the Eriksons  have entered into a
voting agreement (the "Voting Agreement")  pursuant to which each of them agrees
to vote in favor of the  Transaction  all of the shares of the Company's  Common
Stock and Class B Common  Stock held by each of them,  exclusive of 2,246 shares
of Common  Stock and 2,246 shares of Class B Common Stock held jointly by George
Wm. Erikson with his spouse.  The Voting Agreement provides that such obligation
is contingent upon a majority of the votes cast by the Non-Erikson  Stockholders
being cast in favor of the Transaction.  Pursuant to the Voting  Agreement,  the
Eriksons have also granted to GTCR an irrevocable proxy to vote such shares with
respect to certain matters which may arise relating to, or which may impede, the
Transaction.

         The  Voting  Agreement  provides  that  to  the  extent  the  Company's
directors other than the Eriksons were permitted in the proper exercise of their
fiduciary  duties to commit  the  Company to  indemnify  the  Eriksons  in their
capacities as  stockholders,  the Company shall  indemnify and hold harmless the
Eriksons in their  capacities  as  stockholders  with  respect to the review and
negotiation of the Voting Agreement and, with certain exceptions and limitations
with respect to litigation by other  stockholders of the Company,  other parties
to the agreement and third parties.  In addition,  the Voting Agreement provides
that the  Eriksons  shall  indemnify  the  Company's  directors,  other than the
Eriksons,  to the extent that they are not otherwise  indemnified by the Company
or  under  policies  of  insurance  maintained  by the  Company,  against  costs
reasonably incurred by

                                       19

<PAGE>



them arising from the  Company's  entering  into the  agreement to indemnify the
Eriksons under the Voting Agreement.  A copy of the Voting Agreement is included
as Exhibit C to this Proxy Statement.

         Manoogian Executive Agreement. In connection with the Transaction,  the
Redemption Agreement  contemplates that COS and Mr. Manoogian will enter into an
Executive Agreement (the "Executive  Agreement") pursuant to which Mr. Manoogian
will serve as the President of COS for an initial three-year term. The Executive
Agreement renews automatically for additional  successive one-year terms, at the
end of the  initial  three-year  term and each  anniversary  thereafter,  unless
either COS or Mr.  Manoogian  terminates  the Executive  Agreement in writing at
least 30 days prior to the end of any such term.

         The  Executive  Agreement  provides  for Mr.  Manoogian  to  receive an
initial  annual base salary of  $200,000,  subject to periodic  increases at the
discretion  of the COS Board of Directors  (the "COS Board").  In addition,  the
Executive  Agreement  provides  that Mr.  Manoogian  may earn,  beginning in the
fiscal year ending June 30, 1998,  an annual bonus of up to one-half of his then
base annual salary, if COS meets certain yearly business targets  established by
the COS  Board.  Mr.  Manoogian  is also  entitled,  pursuant  to the  Executive
Agreement,  to certain other fringe benefits  approved by the COS Board and made
available to other COS senior executives.  In addition,  the Executive Agreement
sets  forth  certain  non-competition  and  confidentiality  agreements  of  Mr.
Manoogian  relating to his employment by COS. A copy of the Executive  Agreement
is included as Exhibit E to this Proxy Statement.

         Other Related Agreements.  The Redemption  Agreement  contemplates that
the  parties to the  Transaction  and  others  will  enter  into  various  other
agreements relating thereto.  Such agreements  include,  but are not limited to:
(i) an agreement among the Investors and Mr.  Manoogian as  post-Redemption  COS
stockholders with respect to establishing the COS Board,  assuring continuity of
COS'  management  and  ownership,  limiting  stock  transfers  and providing for
supermajority  voting for certain  matters;  and (ii) a  registration  agreement
between COS and the Investors  granting  Investors certain  registration  rights
relating to the COS stock they are to receive.

Special Factor

         Pending the Company's  application of the proceeds from the Transaction
as described  under "Use of Proceeds"  below,  the Company's  performance  after
Closing will substantially  follow that of the Company's other current principal
operating  subsidiary,  Insituform  East,  which,  as the  unaudited  pro  forma
financial  information  below  indicates,  would have  resulted  in the  Company
incurring  an  $860,000   loss  for  the  nine  months  ended  March  31,  1997.
Historically,  a principal factor affecting  Insituform  East's  performance has
been the volatility of its earnings as a function of its sales volumes at normal
margins.  Accordingly,  because a substantial portion of Insituform East's costs
are semi-fixed in nature, the Company's earnings after Closing may, at times, be
severely reduced or eliminated during periods of depressed Insituform East sales
at normal margins or material increases in Insituform  discounted sales, even if
total  Insituform  East  revenues  experience  apparent  buoyancy or growth from
increased Insituform East discounted sales resulting from strategic decisions by
Insituform East.  Conversely,  increases after Closing in Insituform East normal
margin sales may significantly leverage positive earnings for the Company.

Interests of Certain Persons in the Transaction

         Other than as described herein, no director or executive officer of the
Company, and no associate of such persons, has any substantial interest,  direct
or indirect,  in the  Transaction,  other than in the interest  arising from the
ownership of the Company's  Common Stock and Class B Common Stock, in which case
the director or officer receives no extra or special benefit not shared on a pro
rata basis by all other holders of such stock.


         The Redemption Agreement contemplates that effective as of Closing each
of the Eriksons  shall enter into a three-year  consulting  and  non-competition
agreement with COS pursuant to which each is scheduled

                                       20

<PAGE>



to receive $200,000  promptly after Closing,  $50,000 one year after Closing and
$50,000 two years after Closing.  See "Erikson  Consulting  and  Non-Competition
Agreement" under "Related Agreements" above.

Federal Income Tax Consequences

         The  Transaction  will be a taxable  transaction  to the  Company.  The
Company will  recognize  gain measured by the  difference,  if any,  between the
amount realized from the Redemption and the Company's  adjusted tax basis in the
COS stock being redeemed.  The Transaction will not be a taxable  transaction to
the Company's stockholders.

Regulatory Requirements

         To the Company's  knowledge,  there are no federal or state  regulatory
requirements  which must be complied with,  nor are there any such  governmental
consents or approvals that must be obtained, in connection with the Transaction.

Accounting Treatment

         The Transaction, if approved by the stockholders, will be accounted for
as a  disposal  of a  segment  of a  business.  In  accordance  with  Accounting
Principles  Board  Opinion  No.  30,  "Reporting  the  Results of  Operations  -
Reporting the Effects of Disposal of a Segment of a Business, and Extraordinary,
Unusual and  Infrequently  Occurring  Events and  Transactions"  ("APB 30"), the
results of  operations of COS will be removed from the  consolidated  results of
operations of the Company and shown separately as discontinued operations on the
Company's  Statement of Earnings as of the measurement  date,  which will be the
date of the Meeting.  The expected gain from the Transaction  will be recognized
when  realized  on the date of the  Closing.  In  accordance  with  APB 30,  the
recognized gain will include any net income or loss generated by COS between the
measurement date and Closing.


                                 USE OF PROCEEDS

         The   Company   anticipates   receiving    approximately    $22,000,000
($19,000,000  purchase  price  plus  two-thirds  of  an  approximate  $5,000,000
pre-Closing  dividend) as a  consequence  of the  Transaction,  before taxes and
transaction expenses. Promptly after Closing, the Company intends to declare and
distribute  a dividend  of $1.50 per share to the  holders  of Common  Stock and
Class B Common Stock, as of a record date proximate to Closing.  Based on shares
outstanding  as of the Record Date for the Meeting,  the Company  estimates such
dividend to total approximately $2,211,000.  The balance of the proceeds, net of
tax, from the Transaction  will be used for general  corporate  purposes and for
potential  acquisitions  of businesses,  technologies  or products.  The Company
currently has no understanding, commitment or agreement with respect to any such
acquisitions. Pending such uses, the Company intends to invest the proceeds from
the Transaction in short-term, investment grade, interest bearing securities.





                                       21

<PAGE>



                             SELECTED FINANCIAL DATA

         Set  forth  below  is  Selected  Financial  Data for the  Company.  The
Selected Financial Data is derived from the Company's Annual Report on Form 10-K
for the year ended June 30, 1996 and the Company's Quarterly Report on Form 10-Q
for the quarter  ended March 31,  1997  copies of which are  included  with this
Proxy Statement. The pro forma selected financial data has been derived from the
pro forma financial statements included herein. The following information should
be read in conjunction with such reports.
<TABLE>

(in thousands, except per share information and return on equity amounts)

Statement of Earnings Information

<CAPTION>
                                                        Historical                                      Pro Forma

                                                                                             Nine                         Nine
                                                                                             Months           Year        Months
                                                                                             Ended            Ended       Ended
                                                     Years Ended June 30,                    Mar .31,         June30,     Mar.31,

                               1996(1)       1995        1994         1993        1992        1996(1)          1996(1)     1997(1)
                              -------       ----        ----         ----        ----        ----             ----        ----   

<S>                         <C>          <C>         <C>          <C>         <C>           <C>               <C>         <C>     
Sales...................... $  50,680    $  39,143   $  29,846    $  24,774   $  28,984     $  35,671         $  30,471   $ 18,230
Operating profit (loss).... $   7,013    $   5,583   $   2,234    $    (657)  $   2,120     $   1,952         $   2,551   $ (1,869)
Earnings (loss) before
     income taxes and non-
   owned interests......... $   7,614    $   6,602   $   2,526    $    (308)  $   1,962     $   2,330         $   3,121   $ (1,610)
Earnings (loss) before
     non-owned interests... $   4,760    $   3,637   $   1,246    $    (237)  $   1,220     $   1,413         $   2,047   $ (1,142)
Earnings from continuing
     operations............ $   2,055    $   1,391   $     588    $      19   $     430     $     843         $     247   $   (860)
Net earnings (loss)........ $   2,055    $   1,542   $   1,319    $    (290)  $     340     $     843         $     247   $   (860)
Net earnings (loss) per
share:
    Continuing operations.. $    1.40    $    0.96   $    0.40    $    0.01   $    0.29     $    0.57         $    0.17   $  (0.59)
    Net earnings (loss).... $    1.40    $    1.06   $    0.90    $   (0.20)  $    0.23     $    0.57         $    0.17   $  (0.59)
Weighted average number
    of shares..............     1,465        1,460       1,457        1,457       1,457         1,470             1,465       1,470
Dividends declared per
    share.................. $    0.05    $       0   $       0    $       0   $       0     $       0         $    1.55   $       0
- ------------------------------------


(1)      Includes the accounts of MIDSOUTH Partners. For periods ending prior to
         June 30, 1996,  the Company  accounted  for its  investment in MIDSOUTH
         Partners  using  the  equity  method.  See  Note  6  to  the  Company's
         consolidated  financial  statements included in the Company's Form 10-K
         for the year  ended  June 30,  1996  which is  incorporated  herein  by
         reference.
</TABLE>

                                       22

<PAGE>


<TABLE>

Balance Sheet Information

<CAPTION>
                                                            June 30,                                            March 31,
                                1996(1)         1995          1994         1993          1992             1997(1)           1997(1)
                                ----            ----          ----         ----          ----             ----              ----   

                                                                                                         Historical      Pro Forma

<S>                           <C>            <C>            <C>         <C>           <C>                 <C>             <C>     
Accounts receivable.......... $  8,497       $  6,386       $  6,675    $  3,641      $  5,423            $  8,694        $  6,459
Working capital.............. $ 17,886       $ 12,152       $  9,480    $  7,313      $  8,044            $ 18,665        $ 24,633
Total assets................. $ 39,451       $ 32,980       $ 29,507    $ 27,559      $ 29,452            $ 41,884        $ 51,478
Short-term debt.............. $     55       $     53       $    611    $    962      $    816            $     41        $     27
Long-term debt............... $    136       $     42       $     96    $    458      $    813            $    160        $    147
Non-owned interests.......... $ 16,509       $ 12,367       $ 10,318    $  9,809      $ 10,749            $ 16,816        $ 13,106
Stockholders' equity......... $ 17,002       $ 15,000       $ 13,445    $ 12,127      $ 12,492            $ 17,892        $ 25,141
Average stockholders' equity
  (Weighted average equity
 during year exclusive of
 current earnings)........... $ 15,010       $ 13,452       $ 12,127    $ 12,454      $ 12,152            $ 17,025        $ 25,601
Return on equity
(Current earnings divided by
    average stockholders'
    equity as defined above).    13.7%          11.5%          10.9%       (2.3%)         2.7%                6.6%           (4.5%)
Book value per share......... $  11.58       $  10.26       $   9.23    $   8.32      $   8.57           $   12.14        $  17.06
- -----------------------------------

(1)      Includes the accounts of MIDSOUTH Partners. For periods ending prior to
         June 30, 1996,  the Company  accounted  for its  investment in MIDSOUTH
         Partners  using  the  equity  method.  See  Note  6  to  the  Company's
         consolidated  financial  statements included in the Company's Form 10-K
         for the year  ended  June 30,  1996  which is  incorporated  herein  by
         reference.
</TABLE>


                          UNAUDITED PRO FORMA CONDENSED
                       CONSOLIDATED FINANCIAL INFORMATION

         The following unaudited pro forma condensed  consolidated balance sheet
represents  the  Company's  financial  position  at  March  31,  1997  as if the
Transaction  had  occurred  on that  date.  The  unaudited  pro forma  condensed
consolidated  statements  of  operations  represent the results of the Company's
operations  for the year ended June 30, 1996 and the nine months ended March 31,
1997 as if the Transaction had occurred on July 1, 1995. The unaudited pro forma
adjustments  are based upon available  information  and certain  assumptions and
estimates that the Company believes are reasonable under the circumstances.  The
unaudited  pro forma results do not purport to be indicative of the results that
would have obtained had the Transaction occurred at the beginning of the periods
presented,  nor are they  intended to be a  projection  of future  results.  The
unaudited pro forma financial information should be read in conjunction with the
notes thereto.


                                       23

<PAGE>



<TABLE>
CERBCO, Inc.
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
MARCH 31, 1997
<CAPTION>
                                                                 Pro Forma
                                                                  Entries         Pro Forma      Pro Forma
                                                                to Reverse         Entries      As Adjusted
($ in thousands)                           CERBCO, Inc.        Consolidation     to Dispose       for COS
                                           Consolidated           of COS           of COS       Disposition
ASSETS

Current Assets:
<S>                                           <C>           <C>   <C>        <C>   <C>             <C>    
  Cash and cash equivalents                   $10,322       (a)   ($5,550)   (c)   $22,000         $26,772
  Accounts receivable                           8,695       (a)    (2,236)               0           6,459
  Inventories                                   3,692       (a)    (1,852)               0           1,840
  Deferred income taxes                           133       (a)      (133)               0               0
  Prepaid expenses and other                    1,393       (a)      (192)               0           1,201
                                                -----                ----                -           -----
                      TOTAL CURRENT ASSETS     24,235              (9,963)          22,000          36,272

Property, Plant and Equipment -
  net of accumulated depreciation              12,137       (a)      (196)               0          11,941

Other Assets:
  Investment in COS                                 0       (b)     7,440    (c)    (7,440)              0
  Excess of acquisition cost over
    value of net assets acquired - net          4,609       (a)    (2,179)               0           2,430
  Deferred income taxes                            41       (a)       (41)               0               0
  Deposits and other                              861       (a)       (26)               0             835
                                                  ---                 ---                -             ---
                              TOTAL ASSETS    $41,883             ($4,965)         $14,560         $51,478
                                              =======             =======          =======         =======

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
  Accounts payable and accrued
    liabilities                                $4,868       (a)    ($ 582)              $0          $4,286
  Income taxes payable                            135       (a)      (120)   (c)     5,100           5,115
  Dividend payable                                 0                    0    (d)     2,211          $2,211
  Deferred revenue                                526       (a)      (526)               0               0
  Current portion of capital lease obligations     41       (a)       (14)               0              27
                                                   --                 ---                -              --
         TOTAL CURRENT LIABILITIES              5,570              (1,242)           7,311          11,639

Long-Term Liabilities:
  Capital lease obligations                       160       (a)       (13)               0             147
  Deferred income taxes                         1,043                   0                0           1,043
  Other                                           402                   0                0             402
                                                  ---                   -                -             ---
                         TOTAL LIABILITIES      7,382              (1,255)           7,311          13,231
                                                -----              ------            -----          ------

Non-Owned Interests                            16,816       (a)    (3,710)               0          13,106
                                               ------              ------                -          ------

Stockholders' Equity:
  Common stock                                    118                   0                0             118
  Class B common stock                             30                   0                0              30
  Additional paid-in capital                    7,478                   0                0           7,478
  Retained earnings                            10,266                   0    (c)     9,460          17,515
                                                                             (d)    (2,211)
                TOTAL STOCKHOLDERS' EQUITY     17,892                   0            7,249          25,141
                                               ------                   -           ------          ------
                     TOTAL LIABILITIES AND
                      STOCKHOLDERS' EQUITY    $41,883             ($4,965)         $14,560         $51,478
                                              =======             =======          =======         =======

See notes to unaudited pro forma condensed consolidated financial information.
</TABLE>

                                       24

<PAGE>




<TABLE>
CERBCO, Inc.
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
FOR THE NINE MONTHS ENDED MARCH 31, 1997

<CAPTION>
                                                             Pro Forma
                                                               Entries            Pro Forma      Pro Forma
                                                             to Reverse            Entries      As Adjusted
($ in thousands)                           CERBCO, Inc.     Consolidation        to Dispose       for COS
                                           Consolidated        of COS              of COS       Disposition

<S>                                           <C>           <C>  <C>                    <C>        <C>    
SALES                                         $35,671       (e)  ($17,441)              $0         $18,230
                                              -------            --------               --         -------

COSTS AND EXPENSES:
  Cost of sales                                26,026       (e)   (10,579)               0          15,447
  Selling, general and administrative
     expenses                                   7,693       (e)    (3,041)               0           4,652
                                                -----              -------               -           -----
    Total Costs and Expenses                   33,719             (13,620)               0          20,099
                                               ------             -------                -          ------

Operating Profit (Loss)                         1,952              (3,821)               0          (1,869)
Investment Income                                 394       (e)      (177)               0             217
Interest Expense                                  (28)      (e)         4                0             (24)
Other Income (Expense) - net                       12       (e)        54                0              66
                                                   --                  --                -              --
Earnings (Loss) Before Income Taxes and
  Non-Owned Interests                           2,330              (3,940)               0          (1,610)

Provision (Credit) for Income Taxes               917       (e)    (1,385)               0            (468)
                                                  ---              -------               -            ----

Earnings (Loss) Before Non-Owned Interests      1,413              (2,555)               0          (1,142)

Non-Owned Interests in Earnings of
  Consolidated Subs                               570       (e)      (852)               0             282
                                                  ---                ----                -             ---

NET EARNINGS (LOSS)                              $843             ($1,703)              $0           ($860)
                                                 ====             =======               ==           =====

NET EARNINGS (LOSS)
  PER SHARE                                    $0.57               ($1.16)           $0.00          ($0.59)
                                               =====               ======            =====          ======


See notes to unaudited pro forma condensed consolidated financial information.
</TABLE>


                                       25

<PAGE>



<TABLE>
CERBCO, Inc.
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
FOR THE YEAR ENDED JUNE 30, 1996

<CAPTION>
                                                              Pro Forma
                                                               Entries            Pro Forma      Pro Forma
                                                             to Reverse            Entries      As Adjusted
($ in thousands)                           CERBCO, Inc.     Consolidation        to Dispose       for COS
                                           Consolidated        of COS              of COS       Disposition

<S>                                           <C>           <C>  <C>                    <C>        <C>    
SALES                                         $50,680       (f)  ($20,209)              $0         $30,471
                                              -------            --------               --         -------

COSTS AND EXPENSES:
  Cost of sales                                34,325       (f)   (12,037)               0          22,288
  Selling, general and administrative
    expenses                                    9,342       (f)    (3,710)               0           5,632
                                                -----              ------                -           -----
    Total Costs and Expenses                   43,667             (15,747)               0          27,920
                                               ------             -------                -          ------

Operating Profit                                7,013              (4,462)               0           2,551
Investment Income                                 380       (f)       (89)               0             291
Interest Expense                                  (28)      (f)        11                0             (17)
Other Income - net                                248       (f)        48                0             296
                                                  ---                  --                -             ---
Earnings Before Income Taxes and
  Non-Owned Interests                           7,613              (4,492)               0           3,121

Provision for Income Taxes                      2,854       (f)    (1,780)               0           1,074
                                                -----              ------                -           -----

Earnings Before Non-Owned Interests             4,759              (2,712)               0           2,047

Non-Owned Interests in Earnings of
  Consolidated Subs                             2,704       (f)      (904)               0           1,800
                                                -----                ----                -           -----

NET EARNINGS                                   $2,055             ($1,808)              $0            $247
                                               ======             =======               ==            ====

NET EARNINGS PER SHARE                          $1.40              ($1.23)           $0.00           $0.17
                                                =====              ======            =====           =====


See notes to unaudited pro forma condensed consolidated financial information.
</TABLE>


Description of Unaudited Pro Forma Entries

(a)  represents COS' historical amounts at March 31, 1997.

(b)  represents  the  Company's  investment  in COS at March 31,  1997 using the
     equity method.

(c)  represents the disposition transaction.

(d)  represents post-closing dividend of $1.50 per share.

(e) represents COS' historical amounts for the nine months ended March 31, 1997.

(f)  represents COS' historical amounts for the year ended June 30, 1996.


                                       26

<PAGE>



NOTES TO THE UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL INFORMATION

1.   Basis of Presentation

     The unaudited  pro forma  financial  information  presented is based on the
Company's  financial position and results of operations as of March 31, 1997 and
for the periods  ended June 30, 1996 and March 31,  1997,  showing the effect of
the  deletion  of COS from the  consolidated  entity and the receipt of the cash
proceeds from the transaction. The pro forma statements do not show any interest
income that might have been earned on the cash proceeds. The unaudited pro forma
financial  information has been prepared in accordance with the  instructions to
Article 11, Regulation S-X.

2.   Earnings Per Share

     Earnings per share data have been computed based upon the weighted  average
number of common shares  outstanding  and common share  equivalents  during each
period. The following numbers of shares have been used in the computations.

              Nine Months Ended                     Year Ended
                March 31, 1997                      June 30, 1996
                --------------                      -------------

                  1,470,255                          1,465,169
                  =========                          =========

3.  Tax Effects of Pro Forma Adjustments

       The tax effects of the  Transaction are calculated at the statutory rates
in effect at March 31, 1997.




                                       27

<PAGE>



                               SECURITY OWNERSHIP

         The following  information  is furnished with respect to each person or
entity who is known to the  Company to be a  beneficial  owner of more than five
percent of any class of the Company's voting securities as of the Record Date:

<TABLE>

<CAPTION>
Name and Address of                                                          Amount and Nature of               Percent
Beneficial Owner                            Title of Class                   Beneficial Ownership               of Class

<S>                                         <C>                                     <C>     <C>                  <C> 
Robert W. Erikson                           Common Stock                             59,200  1/                   5.0%
3421 Pennsy Drive                           Class B Common Stock                    131,750  1/                  44.4%
Landover, MD

George Wm. Erikson                          Common Stock                             58,102  2/                   4.9%
3421 Pennsy Drive                           Class B Common Stock                    115,814  2/                  39.1%
Landover, MD

Koonce Securities, Inc.                     Common Stock                            230,588  3/                  19.6%
6550 Rock Spring Drive 
Bethesda, MD

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

1/       Record and beneficial ownership, sole voting and sole investment power.

2/       Record and beneficial ownership. Includes 2,246 shares of each class of
         stock owned  jointly with Mr.  Erikson's  spouse,  as to which there is
         shared voting and investment power.

3/       Beneficial ownership, sole voting and sole investment power as publicly
         disclosed  in  current  Schedule  13G  Beneficial   Ownership   Report,
         reporting  securities  acquired by such  financial  institution  in the
         ordinary course of its business.
</TABLE>


         The following information is furnished with respect to all directors of
the Company who were the beneficial  owners of any shares of Common Stock and/or
Class B Common  Stock as of the Record Date,  and with respect to all  directors
and officers of CERBCO as a group:


<TABLE>
<CAPTION>
Name of                                                        Amount & Nature of Beneficial Ownership
Beneficial Owner                 Title of Class           Owned Outright               Exercisable Options     Percent of
                                                                                                                  Class
<S>                              <C>                        <C>     <C>                    <C>                   <C> 
Robert W. Erikson                Common Stock                59,200  1/                     1,500                 5.1%
                                 Class B Common             131,750  1/                         0                44.4%
                                   Stock
George Wm. Erikson               Common Stock                58,102  2/                     1,500                 5.0%
                                  Class B Common            115,814  2/                         0                39.1%
                                  Stock
Webb C. Hayes, IV                Common Stock                 4,500                         3,000                 0.6%
Paul C. Kincheloe, Jr.           Common Stock                 4,500                         3,000                 0.6%
All Directors and Officers       Common Stock               126,302                         9,000                11.4%
 as a Group (6 persons           Class B Common             247,564                             0                83.5%
including those named              Stock
above) 3/ 4/

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

1/       Record and beneficial ownership, sole voting and sole investment power.


                                                        28

<PAGE>



2/       Record and beneficial ownership. Includes 2,246 shares of each class of
         stock owned  jointly with Mr.  Erikson's  spouse,  as to which there is
         shared voting and investment power.

3/       Mr.  George  Erikson also is the  beneficial  owner of 16,500 shares of
         Common  Stock  (less  than  1%  of  such  class)  of  Insituform  East,
         Incorporated,  a subsidiary of the Company. In addition, Messrs. George
         Erikson  and  Robert  Erikson  each  are  the   beneficial   owners  of
         exercisable options on 75,000 shares of the Common Stock (approximately
         1.8% of such class) of Insituform East,  Incorporated,  pursuant to the
         Insituform East 1989 and 1994 Board of Directors' Stock Option Plans.

4/       Mr. Armen Manoogian, President and Director of COS, a subsidiary of the
         Company, is the beneficial owner of 400 shares (33 1/3%) of the Class B
         Stock of COS.
</TABLE>


                                RELATIONSHIP WITH
                         INDEPENDENT PUBLIC ACCOUNTANTS

         Deloitte & Touche, LLP were the Company's  independent auditors for the
year ended June 30,  1996 and are the  Company's  independent  auditors  for the
current  fiscal year.  The  appointment  of the  Company's  auditors is approved
annually by the Board.

         Representatives  of  Deloitte  &  Touche,  LLP will be  present  at the
Meeting and will be given an  opportunity  to respond to  appropriate  questions
from stockholders.



                                   STOCK PRICE

Common Stock

         The Company's Common Stock is traded in the over-the-counter market and
is included in the National  Association of Securities Dealers ("NASD") National
Market System  ("NMS").  Quotations for such shares are reported in the National
Association of Securities Dealers Automated  Quotations  ("NASDAQ") System under
the trading symbol CERB.  Holders of Common Stock have one vote per share on all
matters on which stockholders are entitled to vote together. The following table
shows the range of bid  quotations  for the  period  indicated  as  reported  by
NASDAQ:

<TABLE>
<CAPTION>

                                                   Common Stock
Fiscal Year Ended June 30, 1995             High                 Low
                                            ----                 ---
<C>                                         <C>                 <C>
1st Quarter                                 3 7/8               2 5/8
2nd Quarter                                 5 1/4               3 3/8
3rd Quarter                                 5                   4
4th Quarter                                 5 1/8               4 1/4


Fiscal Year Ended June 30, 1996             High                 Low
                                            ----                 ---
1st Quarter                                 8 1/4               4 7/8
2nd Quarter                                 7 5/8               6
3rd Quarter                                 7 1/2               5 7/8
4th Quarter                                 8 1/8               6




                                       29

<PAGE>




Fiscal Year Ended June 30, 1997             High                 Low
                                            ----                 ---
1st Quarter                                 7 3/8               5 3/8
2nd Quarter                                 7 1/4               5 1/4
3rd Quarter                                 9 3/4               6 1/8
</TABLE>




         The quotations in the above table  represent  prices  between  dealers,
without retail  mark-ups,  mark-downs or  commissions,  and may not  necessarily
represent actual transactions.

         On March 6, 1997, the last trading day prior to the public announcement
of the  Transaction,  the last sale price for the  Company's  Common Stock was $
6.375.

Class B Common Stock

         There is no public  trading  market for shares of Class B Common Stock.
Holders  of  shares  of Class B Common  Stock  have ten  votes  per share on all
matters with the  exception  of the  election of directors  and any other matter
requiring the vote of  stockholders  separately  as a class.  Holders of Class B
Common Stock are entitled to elect the remaining directors after election of not
less than 25% of the directors by the holders of Common Stock, voting separately
as a class. Shares of Class B Common Stock are convertible at any time to shares
of Common Stock on a share-for-share basis.

Holders

         As of May 2, 1997,  the  approximate  number of record  holders of each
class of common equity of the Company was as follows:

         Common Stock                   320
         Class B Common Stock           133



Dividends

         On June 18, 1996, the Company declared cash dividends of five cents per
share on its  shares of Common  Stock and five  cents per share on its shares of
Class B Common Stock to its  stockholders  of record at the close of business on
June 30,  1996,  payable July 15, 1996.  No dividends  were  declared in 1995 or
1994.


                                  OTHER MATTERS

         The  Board is not  aware of any other  matters  which are  likely to be
brought before the Meeting.  However,  if any other matters are properly brought
before the Meeting, it is the intention of the individuals named in the enclosed
form of Proxy to vote  the  proxy in  accordance  with  their  judgment  on such
matters.




                                       30

<PAGE>



                     INCORPORATION OF DOCUMENTS BY REFERENCE

         The following documents of the Company,  which have been filed with the
U.S.  Securities and  Commission,  are hereby  incorporated by reference in this
Proxy Statement and made a part hereof:

         (a) the Company's Annual Report on Form 10-K for the fiscal year ended
             June 30, 1996 (File No. 000-16749);

         (b) the Company's Quarterly Report on Form 10-Q for the quarter ended
             September 30, 1996 (File No. 000-16749);

         (c) the Company's Quarterly Report on Form 10-Q for the quarter ended
             December 31, 1996 (File No. 000-16749);

         (d) the Company's Quarterly Report on Form 10-Q for the quarter ended
             March 31, 1997 (File No. 000-16749);

         (e) the Company's Current Report on Form 8-K filed March 12, 1997
            (File No. 000-16749);

         (f) the Company's Current Report on Form 8-K filed March 24, 1997
            (File No. 000-16749); and

         (g) all other  reports  filed by the  Company  pursuant to Section
             13(a) or 15(d) of the Exchange Act since the end of the fiscal
             year covered by the Annual Report referred to in (a) above;


                  DEADLINE FOR SUBMITTING STOCKHOLDER PROPOSALS
                 FOR INCLUSION IN THE BOARD'S PROXY STATEMENT IN
               CONNECTION WITH THE FISCAL YEAR 1997 ANNUAL MEETING

         A proposal  submitted  by a  stockholder  for  action at the  Company's
Annual Meeting of Stockholders  for the fiscal year ending June 30, 1997 must be
received no later than June 30, 1997,  in order to be included in the  Company's
Proxy Statement for that meeting.  It is suggested that proponents  submit their
proposals by certified mail-return receipt requested.

         A proponent of a proposal must be a record or beneficial owner entitled
to vote at the next  Annual  Meeting on the  proposal  and must  continue  to be
entitled to vote through the date on which that meeting is held.

                                 By Order of the Board of Directors,


                                 /s/ Robert F. Hartman
                                 Robert F. Hartman
                                 Secretary

Landover, Maryland
May 27, 1997

                                       31

<PAGE>



APPENDIX A

TEXT OF COMMON STOCK PROXY CARD:

                                  COMMON STOCK

                                  CERBCO, Inc.
                                3421 Pennsy Drive
                            Landover, Maryland 20785
                                 (301) 773-1784

                 SPECIAL MEETING OF STOCKHOLDERS - JUNE 27, 1997
                              PROXY - COMMON STOCK
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The  undersigned  hereby  appoints Paul C.  Kincheloe,  Jr. and Webb C.
Hayes, IV, and each of them, with full power of substitution, the Proxies of the
undersigned  to represent and to vote, as designated on the reverse side of this
proxy card, all the shares of Common Stock of CERBCO, Inc. held of record by the
undersigned on May 2, 1997, at the Special Meeting of Stockholders to be held on
June 27, 1997 or any adjournments thereof.

(TO BE SIGNED ON REVERSE SIDE)

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


[ X ]  Please mark your votes as in this example.

1.  To approve the sale by the Company of its two-thirds stake in Capitol Office
    Solutions, Inc. held by the Company's wholly-owned subsidiary CERBERONICS, 
    Inc., pursuant to the terms of an Investment, Redemption and Stock Purchase
    Agreement.

[    ]   FOR        [    ]   AGAINST         [    ] ABSTAIN


2.  In their own discretion, the Proxies are authorized to vote upon such
    other business as may properly come before the  meeting.

THIS PROXY,  WHEN PROPERLY  EXECUTED,  WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE  UNDERSIGNED  SHAREHOLDER(S).  IF NO DIRECTION IS MADE, THIS PROXY
WILL BE VOTED FOR PROPOSAL 1.

PLEASE SIGN, DATE AND RETURN PROMPTLY USING THE ENCLOSED ENVELOPE.



SIGNATURE            SIGNATURE (IF HELD JOINTLY)


Dated:              , 1997

NOTE:    Signature(s)   should  be  exactly  as   name(s)   appearing   on  your
         certificate.  If stock is held  jointly,  each holder  should sign.  If
         signing is by attorney, executor,  administrator,  trustee, guardian or
         corporate officer, etc., please give your full title as such.



                                       32

<PAGE>



APPENDIX B

TEXT OF CLASS B COMMON STOCK PROXY CARD:

                              CLASS B COMMON STOCK

                                  CERBCO, Inc.
                                3421 Pennsy Drive
                            Landover, Maryland 20785
                                 (301) 773-1784

                 SPECIAL MEETING OF STOCKHOLDERS - JUNE 27, 1997
                          PROXY - CLASS B COMMON STOCK
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The  undersigned  hereby  appoints Paul C.  Kincheloe,  Jr. and Webb C.
Hayes, IV, and each of them, with full power of substitution, the Proxies of the
undersigned  to represent and to vote, as designated on the reverse side of this
proxy  card,  all the  shares of Class B Common  Stock of CERBCO,  Inc.  held of
record by the undersigned on May 2, 1997, at the Special Meeting of Stockholders
to be held on June 27, 1997 or any adjournments thereof.

(TO BE SIGNED ON REVERSE SIDE)

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


[ X ]  Please mark your votes as in this example.

1.  To approve the sale by the Company of its two-thirds stake in Capitol Office
    Solutions, Inc. held by the Company's wholly-owned subsidiary CERBERONICS, 
    Inc., pursuant to the terms of an Investment, Redemption and Stock Purchase
    Agreement.

[    ]   FOR         [    ]   AGAINST           [    ] ABSTAIN


2.  In their own discretion, the Proxies are authorized to vote upon such other
    business as may properly come before the  meeting.

THIS PROXY,  WHEN PROPERLY  EXECUTED,  WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE  UNDERSIGNED  SHAREHOLDER(S).  IF NO DIRECTION IS MADE, THIS PROXY
WILL BE VOTED FOR PROPOSAL 1.

PLEASE SIGN, DATE AND RETURN PROMPTLY USING THE ENCLOSED ENVELOPE.



SIGNATURE            SIGNATURE (IF HELD JOINTLY)


Dated:           , 1997

NOTE:    Signature(s)   should  be  exactly  as   name(s)   appearing   on  your
         certificate.  If stock is held  jointly,  each holder  should sign.  If
         signing is by attorney, executor,  administrator,  trustee, guardian or
         corporate officer, etc., please give your full title as such.

                                       33

<PAGE>



EXHIBIT A 
                                 EXECUTION COPY



                             INVESTMENT, REDEMPTION
                          AND STOCK PURCHASE AGREEMENT

                                  By and Among


                     GOLDER, THOMA, CRESSEY, RAUNER FUND IV
                           and certain other Investors
                         to be listed on the Schedule 1,


                         CAPITOL OFFICE SOLUTIONS, INC.
                      (f/k/a Capitol Copy Products, Inc.),


                                CERBERONICS, INC.

                                  CERBCO, INC.

                                       and

                                 ARMEN MANOOGIAN






                               Dated March 7, 1997


                                       34

<PAGE>



                                TABLE OF CONTENTS

                                                                            Page


                                    ARTICLE I
                                   DEFINITIONS

1.1      Definitions........................................................  3

                                   ARTICLE II
                      THE REDEMPTION, FINANCING, INVESTMENT
                               AND STOCK PURCHASE

2.1      Recapitalization...................................................  9
2.2      The Financing......................................................  9
2.3      The Redemption; Redemption Price...................................  9
2.4      The Investment.....................................................  9
2.5      The Stock Purchase.................................................  9
2.6      Allocation Among the Investors..................................... 10
2.7      Escrow Arrangements................................................ 10
2.8      Redemption Price and Stock Purchase Price Adjustments.............. 11
         (a)      Funded Indebtedness Adjustment............................ 11
         (b)      Working Capital Adjustment................................ 11
         (c)      Adjustment if Closing Occurs After the Transaction Date... 11
         (d)      Allocation................................................ 11
2.9      Payment of Net Redemption Price and Net Stock Purchase Price to
         Stockholders....................................................... 11
2.10     Closing Audit...................................................... 12
2.11     Post-Closing Redemption Price and Stock Purchase Price Adjustment.. 12
2.12     Example............................................................ 13
2.13     Closing............................................................ 13
         (a)      Deliveries................................................ 13
         (b)      Time and Place............................................ 13
2.14     Consequence of Delay in Closing.................................... 13

                                   ARTICLE III
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                                AND STOCKHOLDERS

3.1      Capitalization..................................................... 14
3.2      Issuance of the Investment Shares.................................. 14
3.3      Other Rights to Acquire Capital Stock.............................. 14
3.4      Due Organization................................................... 15
3.5      No Subsidiaries.................................................... 15
3.6      Due Authorization.................................................. 15
3.7      Financial Statements............................................... 15
3.8      Certain Actions.................................................... 16
3.9      Properties......................................................... 17
3.10     Licenses and Permits............................................... 17
3.11     Intellectual Property.............................................. 18
3.12     Compliance with Laws............................................... 18
3.13     Insurance.......................................................... 18
3.14     Employee Benefit Plans............................................. 19
         (a)      Employee Welfare Benefit Plans............................ 19

                                        i

<PAGE>



         (b)      Employee Pension Benefit Plans............................ 19
         (c)      Employment and Non-Tax Qualified Deferred Compensation 
                  Arrangements.............................................. 19
3.15     Contracts and Agreements........................................... 19
3.16     Claims and Proceedings............................................. 20
3.17     Taxes.............................................................. 20
3.18     Personnel.......................................................... 21
3.19     Business Relations................................................. 22
3.20     Accounts Receivable................................................ 22
3.21     Bank Accounts...................................................... 22
3.22     Agents............................................................. 22
3.23     Warranties......................................................... 22
3.24     Brokers............................................................ 23
3.25     Interest in Competitors, Suppliers, Customers, Etc................. 23
3.26     Indebtedness To and From Officers, Directors, Stockholders, and 
         Employees.......................................................... 23
3.27     Undisclosed Liabilities............................................ 23
3.28     Information Furnished.............................................. 23
3.29     No Liens on Shares................................................. 23
3.30     Due Organization................................................... 24

                                   ARTICLE IV
                 REPRESENTATIONS AND WARRANTIES OF THE INVESTORS

4.1      Due Organization of GTCR IV........................................ 24
4.2      Due Authorization.................................................. 24
4.3      No Brokers......................................................... 24
4.5      No Undisclosed Agreement........................................... 25

                                    ARTICLE V
                  COVENANTS OF THE COMPANY AND THE STOCKHOLDERS

5.1      Conduct of Business Pending Closing................................ 25
         (a)      Negative Covenants........................................ 25
         (b)      Conduct of Business....................................... 26
         (c)      Nature of Breach.......................................... 26
         (d)      No Solicitation........................................... 26
         (e)      Access to Information..................................... 27
         (f)      Transfers or Restrictions................................. 27
5.2      Cerbco Stockholders Meeting........................................ 27
5.3      Consents of Others................................................. 28
5.4      Stockholders' Efforts.............................................. 28
5.5      Powers of Attorney................................................. 28
5.6      Transfer Taxes..................................................... 28
5.7      Notice of Developments; Update of Disclosure Schedules............. 28

                                   ARTICLE VI
                             POST-CLOSING COVENANTS

6.1      General............................................................ 29
6.2      Litigation Support................................................. 29
6.3      Transition......................................................... 29
6.4      Confidentiality.................................................... 29

                                   ARTICLE VII
            CONDITIONS TO OBLIGATION OF PARTIES TO CONSUMMATE CLOSING

                                       ii

<PAGE>



7.1      Conditions to the Investors' Obligations........................... 30
         (a)      Satisfaction with Due Diligence........................... 30
         (b)      Covenants, Representations and Warranties................. 30
         (c)      Hart-Scott-Rodino; Other Consents......................... 31
         (d)      Cash on Balance Sheet..................................... 31
         (e)      Discharge of Indebtedness and Encumbrances................ 31
         (f)      Material Adverse Change................................... 31
         (g)      Recapitalization Documents................................ 31
         (h)      Erikson Voting Agreement.................................. 31
         (i)      Cerbco and Cerberonics Stockholder Approval............... 32
         (j)      Deliveries by the Stockholders and the Company............ 32
                  (i)      Opinion of Stockholders' Counsel................. 32
                  (ii)     Certificates..................................... 32
                  (iii)    Escrow Agreement................................. 32
                  (iv)     Resignation of Directors......................... 32
                  (v)      Release.......................................... 32
                  (vi)     Stock Certificates............................... 32
         (k)      Ancillary Documents....................................... 33
7.2      Conditions to the Company's and the Stockholders' Obligations...... 33
         (a)      Covenants, Representations and Warranties................. 33
         (b)      Consents.................................................. 33
         (c)      Deliveries by the Investors............................... 33
                  (i)      Opinion of the Investors' Counsel................ 33
                  (ii)     Escrow Agreement................................. 33
                  (iii)    Purchase Price for GTCR Shares................... 34
                  (iv)     Ancillary Documents.............................. 34
         (d)      Deliveries in Connection With the Redemption.............. 34
         (e)      Deliveries in Connection With the Stock Purchase.......... 34

                                  ARTICLE VIII
                                 INDEMNIFICATION

8.1      Indemnification by the Stockholders................................ 34
8.2      Defense of Claims.................................................. 35
8.3      Escrow Claim....................................................... 35
8.4      Tax Audits, Etc.................................................... 35
8.5      Indemnification of the Stockholder................................. 36
8.6      Limits on Indemnification.......................................... 36

                                   ARTICLE IX
                                   TERMINATION
9.1      Termination........................................................ 36
         (a)      Mutual Consent............................................ 37
         (b)      Litigation................................................ 37
         (c)      Conditions to the Investors' Obligations.................. 37
         (d)      Conditions to the Stockholders' and the Company's
                  Obligations............................................... 37
         (e)      Alternative Transaction................................... 37
         (f)      Withdrawal of Cerbco Board Approval....................... 37
         (g)      Lack of Favorable Fairness Opinion........................ 37
         (h)      Rejection by Cerbco Stockholders.......................... 37
9.2      Effect of Termination.............................................. 38
9.3      Fees and Expenses.................................................. 38

                                    ARTICLE X

                                       iii

<PAGE>



                                  MISCELLANEOUS

10.1     Modifications...................................................... 38
10.2     Notices............................................................ 38
10.3     Counterparts....................................................... 41
10.4     Expenses........................................................... 41
10.5     Binding Effect; Assignment......................................... 41
10.6     Entire and Sole Agreement.......................................... 41
10.7     Governing Law...................................................... 41
10.8     Survival of Representations, Warranties and Covenants.............. 42
10.9     Invalid Provisions................................................. 42
10.10    Public Announcements............................................... 42
10.11    Remedies Cumulative................................................ 42
10.12    Waiver............................................................. 42
10.13    Further Assurances................................................. 42
10.14    Headings........................................................... 43
10.15    Joinder by Additional Investors.................................... 43


                                       iv

<PAGE>





                                LIST OF EXHIBITS*


Exhibit A        Escrow Agreement
Exhibit B        December 31, 1996 Balance Sheet
Exhibit C-1      Opinion of Company's Counsel
Exhibit C-2      Opinion of Cerbco's Counsel
Exhibit C-3      Opinion of Manoogian's Counsel
Exhibit D-1      Company's Certificates
Exhibit D-2      Cerbco's Certificates
Exhibit D-3      Cerberonics' Certificate
Exhibit E        Opinion of Investors' Counsel
Exhibit F        Amendment to Certificate of Incorporation of Capitol
Exhibit G        Erikson Voting Agreement
Exhibit H        Stockholders' Release
Exhibit I        Erikson Consulting and Non-Compete Agreement
Exhibit J        Stockholders Agreement (Investors/Manoogian)
Exhibit K        Registration Rights Agreement
Exhibit L        Manoogian Executive Agreement
Exhibit M        Global Consulting Agreement
Exhibit N        GTCR Placement Fee Agreement




*NOTE:       At the time of this Agreement,  Exhibits A and B, D-1, D-2, D-3 and
             F through N are attached.  On the other hand, the forms of Exhibits
             C-1 through C-3 and E will be mutually agreed prior to Closing.

                                        v

<PAGE>





                                LIST OF SCHEDULES


Schedule 1       Schedule of Investors
Schedule 2       Transactions and Capitalization Summary
Schedule 2.8     Funded Indebtedness
Schedule 2.9     Stockholder Accounts
Schedule 2.12    Example of Redemption Price and Stock Purchase Price
                   Adjustments, Escrow Arrangements and Funding Mechanics
Schedule 3.4A    Certificate and Bylaws
Schedule 3.4B    Due Organization
Schedule 3.5     Subsidiaries
Schedule 3.7     Financial Statements
Schedule 3.8A    Certain Actions
Schedule 3.8B    Material Changes
Schedule 3.9     Properties
Schedule 3.10    Licenses and Permits
Schedule 3.11    Intellectual Property
Schedule 3.13    Insurance
Schedule 3.14    Employee Benefit Plans
Schedule 3.15    Contracts and Agreements
Schedule 3.16    Claims and Proceedings
Schedule 3.18    Personnel
Schedule 3.20    Accounts Receivable; Inventory
Schedule 3.21    Bank Accounts
Schedule 3.22    Agents
Schedule 3.23    Warranties
Schedule 3.25    Interest in Competitors, Suppliers, Customers, Etc.
Schedule 3.26    Indebtedness with Officers, Directors and Stockholders
Schedule 3.27    Undisclosed Liabilities
Schedule 3.28    Information Furnished
Schedule 7.1(e)  Funded Indebtedness

                                       vi

<PAGE>



                           INVESTMENT, REDEMPTION AND
                            STOCK PURCHASE AGREEMENT


                  THIS INVESTMENT, REDEMPTION AND STOCK PURCHASE AGREEMENT (this
"Agreement")  is entered into as of March 7, 1997, by and among  GOLDER,  THOMA,
CRESSEY,  RAUNER FUND IV, L.P., a Delaware limited  partnership  ("GTCR IV"), on
behalf of itself and certain other  investors  who may execute a joinder  hereto
and shall be  listed  on  Schedule  1 of this  Agreement  (GTCR IV and the other
signatory  investors  shall be referred to herein  individually as an "Investor"
and  collectively as the  "Investors"),  CAPITOL OFFICE  SOLUTIONS,  INC. (f/k/a
Capitol Copy Products,  Inc.), a Delaware  corporation (the "Company"),  CERBCO,
INC.,  a  Delaware  corporation  ("Cerbco"),   CERBERONICS,   INC.,  a  Delaware
corporation   and  a   wholly-owned   subsidiary   of   Cerbco   ("Cerberonics")
(collectively, Cerbco and Cerberonics are referred to herein as the "Cerberonics
Parties"),  and ARMEN  MANOOGIAN  ("Manoogian";  collectively,  the  Cerberonics
Parties and Manoogian are sometimes referred to herein as the "Stockholders" and
individually as a "Stockholder").


                                    Recitals

                  Pursuant to this Agreement,  the Company,  which is engaged in
the office  equipment  dealer  and  service  industry  in the  Washington,  D.C.
metropolitan  area  (the  "Business"),  will be  recapitalized  in a  series  of
contemporaneous transactions. Due to the complexity of these transactions,  they
will be briefly described in the following recitals:

         a.                THE CURRENT CAPITALIZATION OF THE COMPANY

                  On the date of this  Agreement,  the Company's  capitalization
consists of 40,000  shares of Common Stock,  $.10 par value,  of which no shares
are issued and outstanding,  and 10,000 shares of Class B Common Stock, $.10 par
value, of which 1,200 shares are issued and  outstanding.  No preferred stock is
authorized  or  outstanding.  Cerberonics  owns 800 shares of the Class B Common
Stock  (i.e.,  two-thirds  of the  outstanding  equity) and  Manoogian  owns the
remaining  400  shares  of the  Class B Common  Stock  (i.e.,  one-third  of the
outstanding  equity).  A chart  showing  the  details of the  Company's  current
capitalization is set forth in Part 1 of Schedule 2 attached hereto.

         b.                THE RECAPITALIZATION

                  Prior to the closing of the transactions described in Recitals
C  through  F  below  (collectively,  the  "Transactions"),   the  Company  will
recapitalize  itself (the  "Recapitalization"),  by amending its  Certificate of
Incorporation to authorize three classes of common stock,  Class A Common Stock,
$.01 par value (the "Class A Common"), Class B Common Stock, $.01 par value (the
"Class B  Common"),  and  Class C Common  Stock,  $.01 par value  (the  "Class C
Common,"  together  with the Class A Common and the Class B Common,  the "Common
Stock"). Pursuant to the Recapitalization, each share of the Company's currently
issued and outstanding  Class B Common Stock will be exchanged for .61875 shares
of Class A Common,  .37125  shares of Class B Common  and .01  shares of Class C
Common. A chart showing the details of the Recapitalization is set forth in Part
2 of Schedule 2 attached hereto.

         c.                THE FINANCING

                  It is  anticipated  that the Company  will enter into a credit
agreement  or  agreements  with a financial  institution  or  institutions  (the
"Financing") to be arranged by GTCR IV (the "Credit  Facilities"),  which Credit
Facilities  shall  provide  for a loan or loans to the  Company on  commercially
reasonable terms in




                                        1

<PAGE>



connection with the  Transactions in the principal amount of up to approximately
$24,000,000 (the "Loan Proceeds"). The closing of the Credit Facilities is not a
condition  precedent to the closing of the  Transactions,  and if for any reason
the  Financing  is not  fully  consummated,  such  that  some or all of the Loan
Proceeds  are not  received by the  Company,  but all of the  remaining  closing
conditions  to  this  Agreement  are  satisfied,  then  the  Investors  will  be
responsible for funding on commercially  reasonable  terms the sums necessary to
consummate  the  Transactions  (any such  other  funds,  together  with any Loan
Proceeds as  necessary  to  consummate  the  Transactions,  shall be referred to
herein as the "Financing Proceeds").

         d.                THE REDEMPTION

                  Following the Recapitalization  and, if it occurs, the closing
of the  Credit  Facilities,  and  subject  to the terms and  conditions  of this
Agreement,  all of the  shares  of Class A  Common,  Class B Common  and Class C
Common of the Company held by  Cerberonics  (the  "Cerberonics  Shares") will be
redeemed  by the  Company  for a  purchase  price of  $23,750  per  share and an
aggregate  purchase  price of  $19,000,000  subject  to  adjustment  and  escrow
holdbacks as provided herein) (the "Redemption").

         e.                THE INVESTMENT

                  Contemporaneously  with the  Redemption,  and  subject  to the
terms and  conditions of this  Agreement,  the Investors  will purchase from the
Company  49.5  shares of Class A Common  and .5  shares of Class C Common  for a
purchase  price  of  $20,000  per  share  and an  aggregate  purchase  price  of
$1,000,000 (the "Investment").

         f.                THE STOCK PURCHASE

                  Contemporaneously with the Redemption and the Investment,  and
subject  to the terms and  conditions  of this  Agreement,  the  Investors  will
purchase from Manoogian all 247.5 shares of Class A Common held by him and 62.5%
of the Class C Common (2.5 shares)  held by him for a purchase  price of $20,000
per share and an aggregate  purchase price of $5,000,000  (subject to adjustment
and escrow holdbacks as provided herein) (the "Stock  Purchase").  In connection
with the Transactions,  Manoogian, the Investors and the Company will enter into
various  stockholder  agreements,  registration rights agreements and employment
agreements,  all  as  provided  herein.  A  chart  showing  the  effect  of  the
Transactions on the Company's  capitalization is set forth in Part 6 of Schedule
2 attached hereto.

         g.                SUMMARY OF THE TRANSACTIONS

                  In sum,  in the  context of the  Transactions  the  Company is
being valued at $27,000,000.  Cerberonics is receiving $19,000,000 for redeeming
its  two-thirds  interest,  which is equal to two-thirds of  $27,000,000  plus a
$1,000,000 control premium.  Manoogian's  one-third interest is therefore valued
at $8,000,000.  He will receive  $5,000,000 in conjunction with the Transactions
for a portion of his  interest  in the  Company and will end up with a one-third
interest in the newly leveraged Company,  with the remaining two-thirds interest
being held by the Investors. The foregoing valuation and payments are subject to
adjustment  and  holdbacks  as provided  herein.  In addition to the  foregoing,
immediately prior to the Closing, the Company will distribute to Cerberonics and
Manoogian (in proportion to their  respective  two-thirds/one-third  interest in
the Company) all but approximately $800,000 of the Company's cash.






                                        2

<PAGE>



                                    Agreement

                  Accordingly,  in  consideration  of the  mutual  premises  and
covenants  contained herein and for other good and valuable  consideration,  the
receipt  and  adequacy  of which are hereby  acknowledged,  the  parties  hereto
covenant and agree as follows:


                                    ARTICLE I
                                   DEFINITIONS

                  1.1 Definitions.  When used in this Agreement, and in addition
to those terms  defined in the Preamble and the Recitals  above,  the  following
terms have the  meanings  specified or referred to in this Section 1.1 and shall
be equally  applicable  to both the singular  and plural  forms.  Any  agreement
referred  to below  shall  mean such  agreement  as  amended,  supplemented  and
modified from time to time to the extent permitted by the applicable  provisions
thereof and by this Agreement.

                      "Affiliate"  means, with respect to any Person,  any other
Person which  directly or  indirectly  controls,  is  controlled  by or is under
common control with such Person.

                      "Ancillary  Documents"  means the Erikson  Consulting  and
Non-Compete Agreement,  the Global Consulting Agreement,  the GTCR Placement Fee
Agreement,  the Manoogian Executive Agreement, the Registration Rights Agreement
and the Stockholders Agreement.

                      "Cash Flow" has the meaning specified in Section 2.14.

                      "CERCLA" means the Comprehensive  Environmental  Response,
Compensation  and Liability Act, 42 U.S.C.  ss.ss.  9601 et seq., any amendments
thereto, any successor statutes, and any regulations promulgated thereunder.

                      "Closing" has the meaning specified in Section 2.11.

                      "Closing  Balance  Sheet"  has the  meaning  specified  in
Section 2.8.

                      "Closing Date" has the meaning specified in Section 2.11.

                      "Code"  means  the  Internal  Revenue  Code  of  1986,  as
amended.

                      "Confidential    Information"   means   all   confidential
information and trade secrets of the Company including,  without limitation, the
identity,   lists  or  descriptions  of  any  customers,   referral  sources  or
organizations;   financial   statements,   cost   reports  or  other   financial
information;  contract  proposals,  or bidding  information;  business plans and
training and operations methods and manuals;  personnel records;  fee structure;
and  management  systems,  policies or procedures,  including  related forms and
manuals. Confidential Information shall not include any information (i) which is
disclosed  pursuant  to subpoena  or other  legal  process,  (ii) which has been
publicly disclosed,  (iii) which subsequently becomes known to a third party not
subject  to a  confidentiality  agreement  with the  Company,  or (iv)  which is
subsequently  disclosed  by any third  party not in breach of a  confidentiality
agreement.

                      "Contracts" has the meaning specified in Section 3.15.

                      "Court Order" means any judgment,  order,  award or decree
of any foreign,  federal,  state, local or other court or tribunal and any award
in any arbitration proceeding.




                                        3

<PAGE>



                      "Encumbrance"  means any  lien,  claim,  charge,  security
interest, mortgage, pledge, easement,  conditional sale or other title retention
agreement,  defect in title,  covenant or other  restrictions of any kind, other
than a Permitted Exception.

                      "Environmental  Obligations" has the meaning  specified in
Section 3.12.

                      "Eriksons" means Robert W. Erikson and George Wm. Erikson,
who in the aggregate own approximately  9.8% of the total issued and outstanding
common stock and 79.7% of the total issued and outstanding  Class B common stock
of Cerbco, and together control approximately 60.6% of the total voting power of
Cerbco.

                      "Erikson  Consulting and Non-Compete  Agreement" means the
agreement  entered  into as of the  Closing  Date  between  the  Company and the
Eriksons,  in substantially the form set forth in Exhibit I attached hereto, and
pursuant to which the Eriksons have agreed to provide consulting services to the
Company and be restricted in certain competitive activities.

                      "Erikson Voting  Agreement"  means the Voting Agreement of
even date  herewith  between  the  Investors  and the  Eriksons,  in the form of
Exhibit  G, and  pursuant  to which the  Eriksons  have  agreed to  support  the
Redemption  and  vote  their  Cerbco  shares  in  the  same  proportion  as  the
non-Erikson  stockholders of Cerbco vote their shares, subject to the "fiduciary
outs" provided therein.

                      "ERISA" means the Employee  Retirement Income Security Act
of 1974, as amended.

                      "Ernst & Young"  means Ernst & Young,  independent  public
accountants.

                      "Escrow  Agent"  means  that  certain  escrow  agent as is
mutually  acceptable  by the  parties  hereto to serve as such  under the Escrow
Agreement.

                      "Escrow  Agreement"  means  the  Escrow  Agreement  to  be
executed by and among the  Stockholders,  the  Company,  the  Investors  and the
Escrow Agent in the form of Exhibit A.

                      "Escrow Period" has the meaning specified in Section 2.7.

                      "Escrow Sum" has the meaning specified in Section 2.7.

                      "Financial   Statements"  has  the  meaning  specified  in
Section 3.7.

                      "Financing  Proceeds" has the meaning specified in Section
2.2.

                      "Funded  Indebtedness"  means all (i) indebtedness of such
Person for borrowed money or other interest-bearing  indebtedness;  (ii) capital
lease  obligations  of such Person  other than those set forth on Schedule  2.8;
(iii)  obligations  of such Person to pay the deferred  purchase or  acquisition
price for goods or  services,  other  than  trade  accounts  payable  or accrued
expenses  in the  ordinary  course  of  business;  (iv)  indebtedness  of others
guaranteed by such Person or secured by an Encumbrance on such Person's property
other than those set forth on Schedule  2.8; or (v)  extended  credit terms from
manufacturers provided to such Person.

                      "GAAP"   shall   mean   generally   accepted    accounting
principles, consistently applied.





                                        4

<PAGE>



                      "Global   Consulting   Agreement"   means   that   certain
consulting  agreement  to be entered  into as of the  Closing  Date  between the
Company and Global Imaging Systems, Inc., in substantially the form of Exhibit M
attached hereto.

                      "Governmental  Body" means any  foreign,  federal,  state,
local or other governmental authority or regulatory body.

                      "Governmental   Permits"  has  the  meaning  specified  in
Section 3.10.

                      "GTCR   Placement  Fee   Agreement"   means  that  certain
placement  fee  agreement  to be entered into as of the Closing Date between the
Company and GTCR IV, in substantially the form of Exhibit N attached hereto.

                      "Indemnifiable Costs" has the meaning specified in Section
8.1.

                      "Indemnified Parties" has the meaning specified in Section
8.1.

                      "Intellectual  Property"  has  the  meaning  specified  in
Section 3.11.

                      "Inventory" has the meaning specified in Section 3.20(b).

                      "Investment  Price"  has  the  meaning  specified  in  the
Section 2.4.

                      "Investment  Shares"  means the Shares being  purchased by
the Investors from the Company pursuant to the Investment.

                      "IRS" means the Internal Revenue Service.

                      "Loan Proceeds" has the meaning specified in Section 2.2.

                      "Manoogian Shares" means the Shares being purchased by the
Investors from Manoogian pursuant to the Stock Purchase.

                      "Manoogian   Executive   Agreement"   means  that  certain
executive employment agreement to be entered into as of the Closing Date between
the  Company  and  Manoogian,  in  substantially  the form of Exhibit L attached
hereto.

                      "Material  Adverse  Change" or "Material  Adverse  Effect"
means a material adverse change or effect on the assets, properties, Business or
the  operations,  liabilities,  or  conditions  (financial  or otherwise) of the
Company; provided, however, that when such terms are used in Article III hereof,
they shall have the meaning set forth in the preamble to Article III.

                      "Net  Redemption  Price"  has  the  meaning  specified  in
Section 2.9.

                      "Net Stock  Purchase  Price" has the meaning  specified in
Section 2.9.

                      "OSHA"  means the  Occupational  Safety and Health Act, 29
U.S.C.  ss.ss.  651  et  seq.,  any  amendment  thereto,   and  any  regulations
promulgated thereunder.

                      "Permitted  Exception" means (a) liens for Taxes and other
governmental  charges and  assessments  which are not yet due and  payable,  (b)
liens of landlords and liens of carriers,




                                        5

<PAGE>



warehousemen,  mechanics  and  materialmen  and other like liens  arising in the
ordinary course of business for sums not yet due and payable, (c) other liens or
imperfections  on property which are not material in amount or do not materially
detract  from the  value  of or  materially  the  existing  use of the  property
affected by such lien or  imperfection  and (d) such statement of facts shown on
any  title  insurance  policies  delivered  to  the  Investors.  In  respect  of
Inventory,  the term  "Permitted  Exception"  also includes liens arising out of
vendor  financing in the ordinary  course of business for the deferred  purchase
price of Inventory, provided that an aggregate of 80% of the obligations secured
by such liens is paid within 45 days of the incurrence of the obligations giving
rise to such liens.

                      "Person" means any individual,  corporation,  partnership,
joint venture,  association,  joint-stock  company,  limited liability  company,
trust, unincorporated organization or Governmental Body.

                      "Preliminary   Closing   Balance  Sheet"  shall  mean  the
Company's  best estimate of the Company's  balance sheet as of the Closing Date.
The  Preliminary  Closing  Balance Sheet shall be delivered to the Investors and
Stockholders  not less than  three (3) nor more than seven (7) days prior to the
Closing Date.

                      "RCRA" means the Resource  Conservation  and Recovery Act,
42 U.S.C.  ss.ss. 6901 et seq., and any successor  statute,  and any regulations
promulgated thereunder.

                      "Redemption  Price" has the meaning  specified  in Section
2.3.

                      "Registration  Rights  Agreement"  means the  Registration
Rights  Agreement  to be  entered  into  as of  the  Closing  Date  between  the
Investors,  Manoogian and the Company,  in  substantially  the form of Exhibit K
attached hereto.

                      "Requirements of Laws" means any federal,  state and local
laws, statutes, regulations, rules, codes or ordinances enacted, adopted, issued
or promulgated by any Governmental Body (including,  without  limitation,  those
pertaining to  electrical,  building,  zoning,  environmental  and  occupational
safety and health requirements) or common law.

                      "Restricted  Securities"  means  the  Shares  issued to or
purchased by the Investors  hereunder,  and any  securities  issued with respect
thereto  by way of a stock  dividend  or  stock  split or in  connection  with a
combination  of  shares,   recapitalization,   merger,  consolidation  or  other
reorganization. As to any particular Restricted Securities, such securities will
cease to be Restricted Securities when they have (a) been effectively registered
under the  Securities  Act and disposed of in accordance  with the  registration
statement  covering  them,  (b) become  eligible for sale and have actually been
sold to the public pursuant to Rule 144 (or any similar provision then in force)
under the Securities Act or (c) been otherwise  transferred and new certificates
for them not  bearing  the  Securities  Act legend set forth in Section 6.7 have
been delivered by the Company in accordance  with Section  6.6(b).  Whenever any
particular securities cease to be Restricted Securities, the holder thereof will
be entitled to receive from the Company, without expense, new securities of like
tenor not bearing a Securities  Act legend of the character set forth in Section
6.7.

                      "Schedule  of  Investors"  means that  certain  Schedule 1
attached hereto and to be updated prior to the Closing  pursuant to Section 2.6,
setting  forth the list of  Investors  who,  in  addition  to GTCR IV,  shall be
parties hereto.

                      "SEC"  means the United  States  Securities  and  Exchange
Commission and any Governmental Body succeeding to the functions thereof.





                                        6

<PAGE>



                      "Securities  Act"  means the  Securities  Act of 1933,  as
amended, or any similar federal law then in force.

                      "Shares" means any of the Company's  shares being redeemed
pursuant to the Redemption or purchased  pursuant to the Investment or the Stock
Purchase.

                      "Stockholders"   means,   collectively,   the  Cerberonics
Parties and Manoogian.

                      "Stockholders  Agreement" means the Stockholders Agreement
to be entered into as of the Closing Date between the Investors and Manoogian in
substantially  the form of Exhibit J attached hereto,  and governing  certain of
their relative rights as stockholders of the Company following the Closing Date.

                      "Stock  Purchase  Price"  has  the  meaning  specified  in
Section 2.5.

                      "Tax"  or  "Taxes"  means  any  federal,  state,  local or
foreign  income,  alternative or add-on minimum,  gross income,  gross receipts,
windfall profits, severance,  property, production, sales, use, transfer, gains,
license,  excise,  employment,  payroll,  withholding or minimum tax,  transfer,
goods and services,  or any other tax, custom,  duty,  governmental fee or other
like assessment or charge of any kind whatsoever,  together with any interest or
any penalty,  addition to tax or additional  amount imposed by any  Governmental
Body.

                      "Tax Return" means any return, report or similar statement
required  to be  filed  with  respect  to  any  Taxes  (including  any  attached
schedules),  including,  without limitation,  any information return,  claim for
refund, amended return and declaration of estimated Tax.

                      "Transaction  Date" has the meaning  specified  in Section
2.8(c).

                      "Working  Capital" shall mean the  difference  between the
Company's  current  assets  and  its  current  liabilities  as  such  items  are
calculated  in  accordance  with  GAAP,   consistent  with  the  Company's  past
practices.


                                   ARTICLE II
                      THE REDEMPTION, FINANCING, INVESTMENT
                               AND STOCK PURCHASE

                  2.1  Recapitalization.  Prior to the Closing Date, the Company
shall amend its  Certificate of  Incorporation  to authorize the issuance of the
three classes of the Common Stock (i.e.,  Class A Common  Stock,  Class B Common
Stock and Class C Common Stock) each having the rights and preferences set forth
in the Amendment to the Company's  Certificate of Incorporation in substantially
the form of  Exhibit F attached  hereto  and as set forth in more  detail in the
chart in Part 2 of Schedule 2, and as necessary to effect the Transactions.

                  2.2  The  Financing.   On  the  Closing  Date,  assuming  such
facilities  have been  arranged,  the Company shall  consummate the Financing by
entering into the Credit Facilities. The closing of the Credit Facilities is not
a condition precedent to the closing of the Transactions,  and if for any reason
the Company is unable to borrow a sufficient amount of Loan Proceeds, but all of
the other conditions precedent to the consummation of the Transactions have been
satisfied,  then the Investors shall be required to provide or otherwise arrange
sufficient Financing Proceeds to consummate the Transactions.





                                        7

<PAGE>



                  2.3 The  Redemption;  Redemption  Price.  On the Closing Date,
subject  to the terms  and  conditions  set  forth  herein,  the  Company  shall
consummate the Redemption by redeeming all of the Cerberonics  Shares (i.e., the
495 shares of Class A Common, 297 shares of Class B Common and 8 shares of Class
C Common) held by the Cerberonics  Parties following the  Recapitalization  (see
Part 2 of Schedule 2). Subject to the terms of Sections 2.7, 2.8 and 2.11, which
provisions  require certain  holdbacks and adjustments prior to the distribution
of such price to  Cerberonics,  the  Cerberonics  Shares  shall be redeemed at a
price  of  $23,750  per  share,  for an  aggregate  gross  redemption  price  of
$19,000,000 (the "Redemption Price").

                  2.4 The  Investment.  On the Closing  Date,  contemporaneously
with  consummation of the Redemption and subject to the terms and conditions set
forth herein,  the Company and the Investors shall  consummate the Investment by
the Investors  purchasing from the Company,  and the Company issuing and selling
to the Investors,  49.5 shares of Class A Common and .5 shares of Class C Common
at a price of $20,000 per share,  for an aggregate  purchase price of $1,000,000
(the "Investment Price") (see Part 4 of Schedule 2).

                  2.5 The Stock Purchase. On the Closing Date, contemporaneously
with the  consummation  of the  Redemption and the Investment and subject to the
terms and  conditions  set forth  herein,  the  Investors  and  Manoogian  shall
consummate  the Stock Purchase by Manoogian  selling to the  Investors,  and the
Investors  purchasing  from  Manoogian,  247.5  shares of Class A Common and 2.5
shares of Class C Common (the  "Manoogian  Shares")  (see Part 5 of Schedule 2).
Subject to the terms of Sections  2.7, 2.8 and 2.11,  which  provisions  require
certain  holdbacks  and  adjustments  prior  to the  distribution  of the  stock
purchase price to Manoogian,  the Manoogian Shares shall be purchased at a price
of $20,000 per share,  for an aggregate  gross purchase price of $5,000,000 (the
"Stock Purchase Price").

                  2.6  Allocation  Among  the  Investors.  GTCR  IV is the  sole
Investor as of the date that this Agreement is executed; provided, however, that
on or before ten (10) days prior to the Closing  Date,  GTCR IV will present the
Company  and the  Stockholders  with an  updated  Schedule 1 (the  "Schedule  of
Investors"),  and  each  additional  Investor  shown  thereon  shall  execute  a
counterpart of this Agreement on or prior to the Closing Date in accordance with
Section 10.15.  Allocation as among the Investors of the Shares purchased by the
Investors  pursuant to the  Investment  and the Stock  Purchase  shall be as set
forth on the  Schedule  of  Investors,  and the  overall  capitalization  of the
Company following the consummation of all of the  Transactions,  shall be as set
forth in Part 6 of Schedule 2.

                  2.7 Escrow Arrangements.  Pursuant to the Escrow Agreement (in
substantially  the form of Exhibit A) to be entered into among the Stockholders,
the Company, the Investors and the Escrow Agent, the Stockholders shall cause to
be delivered to the Escrow  Agent at Closing  $1,500,000,  which amount shall be
allocated  as follows:  (i) in respect of the  Cerberonics  Parties,  $1,055,556
(19/27 x $1,500,000)  shall be deducted from the Redemption  Price;  and (ii) in
respect of Manoogian, (A) $277,778 (= 8/27 x $1,500,000 x 5/8) shall be deducted
from the Stock  Purchase  Price,  and (B)  Manoogian  will deliver to the Escrow
Agent  pursuant  to the Escrow  Agreement  8.33  shares of Class B Common  Stock
(=(8/27 x  $1,500,000  x 3/8) / $20,000).  (The cash  portions of such  escrowed
amounts,  together  with interest  accrued  thereon and the Class B Common Stock
escrowed by Manoogian  shall be referred to as the "Escrow Sum.") The Escrow Sum
shall be held  pursuant  to the terms of the  Escrow  Agreement  for  payment of
amounts,  if any, owing by the  Stockholders  to the Company or the Investors in
accordance with Article VIII below.  The Escrow  Agreement shall provide for the
proper  allocation  of claims made  against the Escrow Sum by the  Investors  as
among the Cerberonics Parties and Manoogian,  as well as the priority as between
the cash and stock portion of the Escrow Sum contributed by Manoogian. Where the
indemnification  obligations are mutual (as between the Cerberonics  Parties and
Manoogian),  the proper allocation of responsibility under such provisions shall
be  19/27ths,  the  Cerberonics  Parties  and  8/27ths,   Manoogian.  Where  the
indemnification   obligations  are  separate  (e.g.,   where  Manoogian  has  an
indemnification  obligation under this Agreement, but the Cerberonics Parties do
not), the




                                        8

<PAGE>



Investors or the Company shall  proceed  separately  under the Escrow  Agreement
against the  Stockholder(s)  which has the obligation to indemnify the Investors
or the Company . Where the  indemnification  is a result of a claim involving an
economic loss to or of the Company,  the relevant  Escrow Sum shall be delivered
to the Company, and where the claim involves a direct (as opposed to derivative)
economic loss to the  Investors,  such funds shall be delivered to the Investors
on a pro-rata  basis.  At the  conclusion  of the period ending on the 365th day
after the  Closing  Date (such  period  being  referred to herein as the "Escrow
Period"),  such portion of the Escrow Sum not theretofore  claimed by or paid to
the Company or the Investors,  as the case may be, in accordance  with the terms
of  the  Escrow   Agreement  and  this  Agreement  shall  be  disbursed  to  the
Stockholders as provided in the Escrow Agreement. The Stockholders,  the Company
and the Investors agree that each will execute and deliver such  instruments and
documents  as are  reasonably  furnished  by any  other  party  to  enable  such
furnishing  party to  receive  those  portions  of the  Escrow  Sum to which the
furnishing  party is entitled under the  provisions of the Escrow  Agreement and
this Agreement.

                  2.8     Redemption Price and Stock Purchase Price Adjustments.

                           (a) Funded  Indebtedness  Adjustment.  The Redemption
Price shall be reduced by an amount  equal to 19/27ths,  and the Stock  Purchase
Price shall be reduced by an amount equal to 8/27ths, of the total amount of any
Funded  Indebtedness  paid  at the  Closing  to  satisfy  the  Company's  Funded
Indebtedness as at the Closing Date;  provided,  however,  that the term "Funded
Indebtedness"  shall not  include  borrowings  of the  Company  under the Credit
Facilities (if any), it being  anticipated  that the Financing  Proceeds will be
used at the Closing,  in accordance with the terms of Section 7.1(e) hereof,  to
satisfy,  discharge and refinance the  Company's  Funded  Indebtedness  (if any)
existing as at the Closing Date.

                           (b) Working Capital Adjustment.  The Redemption Price
will be further  reduced by an amount equal to 19/27ths,  and the Stock Purchase
Price  shall be further  reduced  by an amount  equal to  8/27ths,  of the total
amount,  if any, by which the Working  Capital as reflected  on the  Preliminary
Closing  Balance  Sheet is less than that amount  which is $50,000 less than the
average of the working capital balances of the Company at the end of each of the
six full  calendar  months  prior to the  month in  which  the  Closing  occurs,
assuming for purposes of each such average,  that the cash  component of Working
Capital  shall be the actual cash for each such month or $800,000,  whichever is
the lesser amount.

                           (c)   Adjustment   if   Closing   Occurs   After  the
Transaction  Date. In the event the Closing does not occur prior to a date which
is 120 days after the date of this Agreement (the "Transaction  Date"),  and the
Company's Cash Flow (as defined in Section 2.14)  subsequent to the  Transaction
Date  shall be  retained  by the  Company  pursuant  to Section  2.14,  then the
Redemption  Price and the Stock Purchase Price shall each be adjusted  upward in
accordance with the last sentence of this Section 2.8(c), on a dollar-for dollar
basis, by the amount of interest earned on the Net Redemption  Price and the Net
Stock Purchase Price during the period  commencing on the  Transaction  Date and
ending on the Closing  Date,  calculated at the prime rate of interest per annum
as at the Transaction  Date publicly  announced by The Chase Manhattan Bank. Any
adjustment  made under this Section  2.8(c)  shall be allocated  19/27ths to the
Redemption Price and 8/27ths to the Stock Purchase Price.

                           (d)  Allocation.  Any reduction to the Stock Purchase
Price  pursuant to paragraphs  (a) or (b) of this Section 2.8 shall be allocated
pro-rata among the Investors.

                           2.9  Payment  of Net  Redemption  Price and Net Stock
Purchase Price to Stockholders. On the Closing Date, following the establishment
of the escrow  under  Section 2.7 and the  Redemption  Price and Stock  Purchase
Price  adjustments  required under Section 2.8, the remaining  Redemption  Price
(the "Net  Redemption  Price")  shall be paid to  Cerberonics  and the remaining
Stock  Purchase  Price  (the  "Net  Stock  Purchase  Price")  shall  be  paid to
Manoogian. The Net Redemption Price and




                                        9

<PAGE>



the Net Stock  Purchase  Price  shall each be paid in cash by wire  transfer  of
funds or by cashier's  checks to the accounts of Cerberonics  and Manoogian,  as
the same are specified in Schedule 2.9.

                  2.10 Closing  Audit.  Within  ninety (90) days  following  the
Closing  Date,  there shall be delivered to the  Investors,  the Company and the
Stockholders  an audit,  prepared by Ernst & Young in accordance  with generally
accepted auditing standards (and consistent with the Company's audited financial
statements for the 1994, 1995 and 1996 fiscal years), of the Preliminary Closing
Balance Sheet of the Company at and as of the Closing  Date. In connection  with
such  audit,  the  Preliminary  Closing  Balance  Sheet  shall  be  adjusted  in
accordance  with GAAP (as so audited and  adjusted,  the  "Audited  and Adjusted
Closing Balance  Sheet").  The cost of the Audited and Adjusted  Closing Balance
Sheet shall be paid by the Company. In the event that a Stockholder disputes any
item(s) on the Audited and Adjusted  Closing Balance Sheet within ten days after
the  Stockholders'  receipt thereof,  the disputing  Stockholder or Stockholders
shall  select  and  retain  an  independent   "Big  Six"  accounting  firm  (the
"Independent  Accountants")  to review the  disputed  item(s) on the Audited and
Adjusted Closing Balance Sheet. The final determination of such disputed item(s)
by the  Independent  Accountants  shall be reflected on the Audited and Adjusted
Closing Balance Sheet. The cost of retaining the Independent  Accountants  shall
be borne by the  Stockholders;  provided,  however,  that  the  Investors  shall
reimburse the Stockholders  for 100% of the cost of the Independent  Accountants
in the event that such review results in an increase of more than $25,000 in the
Company's  Working  Capital as  reflected  on the Audited and  Adjusted  Closing
Balance Sheet prepared by Ernst & Young.

                  2.11  Post-Closing  Redemption  Price and Stock Purchase Price
Adjustment.  In the event that the Working  Capital as  reflected on the Audited
and  Adjusted  Closing  Balance  Sheet is $50,000  less than the  average of the
working capital balances on the Company's monthly  financial  statements for the
six full  calendar  months  prior  to the  month in  which  the  Closing  occurs
(assuming  for the purposes of such  average that the cash  component of Working
Capital  shall be the actual cash for such period or $800,000,  whichever is the
lesser amount), then the Redemption Price and the Stock Purchase Price will each
be adjusted  downward in accordance with the last sentence of this Section 2.11,
on a dollar-for-dollar basis, to reflect the lesser of (i) the decrease, if any,
in the total  Working  Capital as reflected on the Audited and Adjusted  Closing
Balance Sheet from the amount of Working  Capital  reflected on the  Preliminary
Closing  Balance  Sheet or (ii) the  amount,  if  added to the  Working  Capital
reflected on the Audited and Adjusted Closing Balance Sheet,  which would sum to
that  number  which is  $50,000  less than the  average of the  working  capital
balances on the Company's monthly financial statements for the six full calendar
months  prior  to the  month  in  which  the  Closing  occurs.  Conversely,  the
Redemption  Price  and the  Stock  Purchase  Price  will be  adjusted  upward in
accordance  with the last sentence of this Section 2.11, on a dollar-for  dollar
basis,  to  reflect  the  increase,  if any,  in the total  Working  Capital  as
reflected on the Audited and Adjusted  Closing  Balance Sheet from the amount of
Working Capital  reflected on the Preliminary  Closing Balance Sheet;  provided,
however,  that in no event shall such upward  adjustment exceed the total amount
of any  adjustment to the  Redemption  Price and the Stock  Purchase  Price made
pursuant to Section 2.8(b) above. The post-closing  adjustment to the Redemption
Price and the Stock Purchase Price, if any, shall be paid by the Stockholders to
the  Company  or by the  Company  to the  Stockholders,  as the case may be,  in
immediately  available funds within ten (10) days of delivery of the Audited and
Adjusted  Closing  Balance Sheet.  Any  adjustment  made under this Section 2.11
shall be  allocated  19/27ths to the  Redemption  Price and 8/27ths to the Stock
Purchase Price.

                  2.12 Example. An example of the foregoing Redemption Price and
Stock Purchase Price adjustments,  escrow  arrangements and funding mechanics is
attached hereto as Schedule 2.12.

                  2.13     Closing.

                           (a)  Deliveries.   In  the  event  that  all  of  the
conditions  to Closing (as defined in paragraph (b) below) set forth in Sections
7.1 and 7.2 have been  satisfied or waived,  the parties hereto shall deliver to
the appropriate other parties all certificates,  documents,  exhibits, schedules
and other instruments




                                       10

<PAGE>



reasonably  required  to be  delivered  at  Closing  by  the  parties  or  their
respective  counsel  pursuant  to this  Agreement,  each of which shall be fully
executed and completed, as appropriate,  and (i) the Financing Proceeds shall be
remitted in  immediately  available  funds to the Company to be utilized to fund
the  Redemption,  (ii) the  Company  shall  remit or  cause  to be  remitted  to
Cerberonics the Net Redemption  Price,  (iii) the Investors shall remit or cause
to be  remitted in  immediately  available  funds to the Company the  Investment
Price for the purchase and sale of the  Investment  Shares,  (iv) the  Investors
shall remit or cause to be remitted in immediately  available funds to Manoogian
the Net Stock Purchase Price for the purchase and sale of the Manoogian  Shares,
and (v) the Escrow Account shall be funded.

                           (b) Time and Place.  The closing (the  "Closing")  of
the Transactions  shall occur at the offices of Arent Fox Kintner Plotkin & Kahn
at 10:00 a.m., local time, on a date which is no later than one (1) business day
after the Cerbco stockholders'  meeting is convened to vote on the Redemption in
accordance with Section 5.2, provided that as of said date all of the conditions
to  Closing  set  forth in  Sections  7.1 and 7.2  have  been  satisfied  by the
responsible party or waived by the party benefitted thereby and thus entitled to
waive the same (the "Closing  Date"),  or such other time as the Investors,  the
Company and the Stockholders may mutually agree.

                  2.14 Consequence of Delay in Closing. Notwithstanding anything
to the  contrary in this  Agreement,  in the event the Closing  occurs after the
Transaction  Date,  and such  delay is not caused by an act or  omission  of the
Investors, then the effective date of the Closing shall be the Transaction Date,
such  that  the  Preliminary  Closing  Balance  Sheet  shall  be  based  on  the
Transaction Date and the Cash Flow (as defined below) of the Company  subsequent
to the Transaction  Date shall be retained by the Company for the benefit of its
stockholders  (post-Closing).  For purposes hereof, "Cash Flow" shall be defined
as the  Company's  net  income  (after  tax)  plus  non-cash  expenses  such  as
depreciation  and  amortization,  less any increases in Working  Capital and any
capital expenditures.


                                   ARTICLE III
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                                AND STOCKHOLDERS

                  In making the  representations and warranties set forth below,
the term  "material"  shall be deemed to mean an  amount of money  greater  than
$50,000,   the  terms  "material  adverse  change,"  "material  adverse  trend,"
"material  adverse  effect,"  or any other  term of like  import  shall mean the
occurrence  of any single  event,  or any series of  related  events,  or set of
related circumstances,  which proximately causes an actual, direct economic loss
to the  Company,  taken as a whole,  in  excess of  $50,000  per  occurrence  or
$100,000 in the aggregate.  The term "knowledge," as used in connection with any
representation made by the Cerberonics Parties,  shall (i) mean actual knowledge
of the Eriksons,  Cerberonics or Cerbco after reasonable  investigation and (ii)
be deemed to exist with  respect to any matter for which a reserve was  provided
for in the Company's financial statements,  regardless of whether the reserve is
sufficient  to  cover  any  loss in  respect  of  such  matter.  Subject  to the
foregoing, in connection with the Transactions, the Company and the Stockholders
jointly and severally  (except as set forth in Sections 3.29 and 3.30) represent
and warrant to the Investors as set forth in this Article III:

                  3.1  Capitalization.  Immediately  prior to the  Closing,  the
authorized  capital  stock of the  Company is as  described  in Recital A above;
provided,  however,  that as of the  Closing  Date and  pursuant  to Section 2.1
hereof,  prior  to  the  consummation  of the  Transactions,  the  Company  will
consummate the  Recapitalization  so as to have 10,000 shares of Class A Common,
10,000 shares of Class B Common and 100 shares of Class C Common authorized,  of
which 742.5, 445.5 and 12 shares, respectively,  will be issued and outstanding.
All  of the  outstanding  shares  of  capital  stock  of the  Company  are  duly
authorized,   validly  issued,  fully  paid,  and  nonassessable.   All  of  the
outstanding shares of capital stock of the Company are owned of




                                       11

<PAGE>



record and beneficially by the Stockholders,  with Cerberonics owning two-thirds
and  Manoogian  owning  one-third  of  such  shares,  as  set  forth  in  Part 1
(pre-Recapitalization) and Part 2 (post-Recapitalization) of Schedule 2. None of
the  outstanding  shares of capital  stock of the  Company was issued or will be
transferred  pursuant to the  transactions  contemplated  by this  Agreement  in
violation of any preemptive or preferential rights of any Person.

                  3.2 Issuance of the Investment Shares. The issuance,  sale and
delivery of the  Investment  Shares in accordance  with this Agreement have been
duly  authorized by all necessary  corporate  action on the part of the Company,
and the Investment  Shares when so issued,  sold and delivered  against  payment
therefor in  accordance  with this  Agreement  will be duly and validly  issued,
fully paid and nonassessable. Except as provided in this Agreement, there are no
statutory  or  contractual  stockholders  preemptive  rights with respect to the
issuance of the  Investment  Shares  hereunder.  Based in part on the investment
representations  of the  Investors  in Section 4.4, the Company has not violated
any applicable  federal or state  securities  laws in connection with the offer,
sale or issuance of any of its capital stock,  and the offer,  sale and issuance
of the  Investment  Shares  hereunder  do not  require  registration  under  the
Securities Act or any applicable state securities laws.

                  3.3 Other Rights to Acquire Capital Stock. Except as set forth
in this Agreement, there are no authorized or outstanding warrants,  options, or
rights of any kind to acquire from the Company any equity or debt  securities of
the Company,  or securities  convertible into or exchangeable for equity or debt
securities  of the  Company,  and there are no  shares of  capital  stock of the
Company  reserved for issuance for any purpose nor any  contracts,  commitments,
understandings  or  arrangements  which  require the  Company to issue,  sell or
deliver any additional shares of its capital stock.

                  3.4  Due  Organization.  The  Company  is a  corporation  duly
organized, validly existing, and in good standing under the laws of the state of
Delaware and has full corporate  power and authority to carry on the Business as
now  conducted  and as proposed to be conducted  through  Closing.  Complete and
correct copies of the  Certificate of  Incorporation  and Bylaws of the Company,
and all amendments thereto,  have been heretofore delivered to the Investors and
are attached  hereto as Schedule  3.4A.  Set forth in Schedule  3.4B hereto is a
list of each jurisdiction in which the Company is qualified to do business.  The
Company is  qualified  to do business in  Maryland,  Virginia,  the  District of
Columbia  and in each  jurisdiction  in which the nature of the  Business or the
ownership of its properties requires such qualification except where the failure
to be so qualified does not and would not have a Material Adverse Effect.

                  3.5 No Subsidiaries.  Except as set forth in Schedule 3.5, the
Company does not directly or indirectly  have any  subsidiaries or any direct or
indirect ownership interests in any Person.

                  3.6 Due  Authorization.  Subject to the  approval  of Cerbco's
stockholders  as  contemplated  by Section  5.2  hereof,  the  Company  and each
Stockholder  has full power and  authority to execute,  deliver and perform this
Agreement and to carry out the transactions  contemplated hereby. The execution,
delivery,  and performance of this Agreement and the  transactions  contemplated
hereby have been duly and validly  authorized by all necessary  corporate action
of the  Company  and the  Cerberonics  Parties,  including  the  approval by the
Company's   and,   subject  to  the  provisions  of  Section  5.2,  by  Cerbco's
stockholders,  all in accordance with applicable law. Subject to the approval of
Cerbco's  stockholders as contemplated by Section 5.2 hereof, this Agreement has
been duly and validly executed and delivered by the Company and the Stockholders
and constitutes the valid and binding obligations of each of the Company and the
Stockholders, enforceable in accordance with its terms. The execution, delivery,
and performance of this Agreement (as well as all other instruments, agreements,
certificates,  or other  documents  contemplated  hereby) by the Company and the
Stockholders,  and  the  execution,  delivery,  and  performance  of the  Escrow
Agreement, do not (a) violate any Requirements of Laws or any Court Order of any
Governmental Body applicable to the Company or the Stockholders, or any of their
properties, (b) violate or conflict with, or permit the cancellation of, or




                                       12

<PAGE>



constitute  a  default  under,  any  agreement  to  which  the  Company  or  the
Stockholders are a party, or by which they or any of their properties are bound,
(c)  permit  the  acceleration  of the  maturity  of  any  indebtedness  of,  or
indebtedness secured by the property of, the Company or the Stockholders, or (d)
violate or conflict with any provision of the  Certificate of  Incorporation  or
Bylaws of the Company or the Cerberonics Parties.

                  3.7 Financial  Statements.  The balance sheets of the Company,
income statements, statements of retained earnings and cash flows of the Company
as of and for the years ended June 30, 1994, June 30, 1995 and June 30, 1996, as
audited by  Deloitte  & Touche  the  Company's  outside  accountants,  have been
delivered to the Investors by the Stockholders.  In addition,  it is anticipated
that prior to the  Closing,  the  Stockholders  and the Company will provide the
Investors  with the unaudited  profit and loss  statements and balance sheets of
the Company,  as of and for the three months ended  September 30, 1996,  the six
months  ended  December  31,  1996 and the nine  months  ended  March  31,  1997
(collectively,  the audited June 30, 1996 and the unaudited  September 30, 1996,
December 31, 1996 and March 31, 1997 financial  statements  shall be referred to
herein as the "Financial Statements").

Except as disclosed on Schedule 3.7, the Financial Statements have been prepared
in accordance with GAAP throughout the periods  indicated and fairly present the
financial  position,  results  of  operations  and  changes in cash flows of the
Company as of the indicated dates and for the indicated periods, subject (in the
case of the  interim  Financial  Statements)  to year end  accruals  made in the
ordinary  course of the Business which are not adversely  material and which are
consistent with past practices.  Except to the extent  reflected or provided for
in the balance  sheets  included in the Financial  Statements or as disclosed in
Schedule  3.7,  the Company has no  liabilities,  nor any  obligations  (whether
absolute, contingent, or otherwise) which are (individually or in the aggregate)
material (in amount or to the conduct of the Business);  and neither the Company
nor the  Stockholders  have knowledge of any basis for the assertion of any such
liability or  obligation.  Since  December 31, 1996,  there has been no Material
Adverse Change.

                  3.8 Certain Actions.  Since December 31, 1996, the Company has
not,  except as disclosed on Schedule 3.8A hereto:  (a)  discharged or satisfied
any  Encumbrance  or paid any  obligation or liability,  absolute or contingent,
other than current  liabilities  incurred and paid in the ordinary course of the
Business;  (b) paid or declared any  dividends or  distributions,  or purchased,
redeemed,  acquired,  or retired any stock or indebtedness from any stockholder;
provided,  however,  that dividends or distributions of cash may be made subject
to the minimum cash threshold closing condition contained in Section 7.1(d); (c)
made or  agreed  to make any  loans or  advances  or  guaranteed  or  agreed  to
guarantee  any  loans or  advances  to any party  whatsoever;  (d)  suffered  or
permitted any  Encumbrance to arise or be granted or created against or upon any
of its assets, real or personal, tangible or intangible; (e) cancelled,  waived,
or released or agreed to cancel,  waive, or release any of its debts, rights, or
claims against third parties in excess of $10,000 individually or $50,000 in the
aggregate; (f) sold, assigned,  pledged, mortgaged, or otherwise transferred, or
suffered any damage,  destruction, or loss (whether or not covered by insurance)
to, any assets (except in the ordinary course of the Business);  (g) amended its
Certificate of Incorporation or Bylaws; (h) paid or made a commitment to pay any
severance  or  termination  payment to any  employee  or  consultant  other than
commitments or payments in the ordinary  course of business which do not, in the
aggregate,  exceed  $25,000;  (i) made any  material  change  in its  method  of
management  or  operation  or  method  of  accounting;   (j)  made  any  capital
expenditures,  including,  without limitation,  replacements of equipment in the
ordinary course of the Business,  or entered into commitments  therefor,  except
for capital expenditures or commitments therefor which do not, in the aggregate,
exceed $100,000;  (k) made any investment or commitment  therefor in any Person;
(l) made any payment or contracted  for the payment of any bonus,  gratuity,  or
other  compensation,  other than (A) wages,  salaries  and  bonuses  paid in the
ordinary course of the Business, and (B) wage and salary adjustments made in the
ordinary  course of the Business for employees who are not officers,  directors,
or stockholders of the Company;  (m) made,  amended, or entered into any written
employment  contract or created or made any material change in any bonus,  stock
option,  pension,  retirement,  profit sharing or other employee benefit plan or
arrangement;  (n) amended or experienced a termination of any material contract,
agreement, lease, franchise or license to




                                       13

<PAGE>



which the Company is a party, except in the ordinary course of the Business;  or
(o) entered into any other material  transactions  except in the ordinary course
of the Business.  Since September 30, 1996, except as disclosed on Schedule 3.8B
hereto,  there has not been (a) any Material Adverse Change  including,  but not
limited to, the loss of any material  customers or suppliers of the Company,  or
in any  material  assets  of  the  Company,  (b)  any  extraordinary  contracts,
commitments, orders or rebates, (c) any strike, material slowdown, or demand for
recognition by a labor  organization  by or with respect to any of the employees
of the Company,  or (d) any shutdown,  material  slow-down,  or cessation of any
material operations  conducted by, or constituting part of, the Company, nor has
the Company agreed to do any of the foregoing.

                  3.9  Properties.  Attached  hereto as  Schedule  3.9 is a list
containing a description of all interests in real property  (including,  without
limitation,  leasehold  interests) and personal property utilized by the Company
in the  conduct of the  Business  having a book value in excess of $25,000 as of
the date hereof. Except as expressly set forth on Schedule 3.9 (or in respect of
the Company's accounts receivable or Inventory, on Schedule 3.20), such real and
personal  properties  are free and clear of  Encumbrances.  The  Investors  have
reviewed  the results of a lien search  covering all of the  Company's  real and
personal  property in the States of Virginia  and  Maryland  and the District of
Columbia.  All of the  properties  and  assets  necessary  in  the  Business  as
currently  conducted  (including,   without  limitation,   all  books,  records,
computers and computer software and data processing  systems) are owned,  leased
or licensed by the Company and are  suitable for the purposes for which they are
currently being used. The material physical properties of the Company, including
the real properties leased by the Company,  are in good operating  condition and
repair,  normal  wear and tear  excepted,  and are free  from any  defects  of a
material nature.  Except as otherwise set forth on Schedule 3.9, the Company has
full and  unrestricted  legal and  equitable  title to all such  properties  and
assets.  The  operation  of the  properties  and  Business of the Company in the
manner in which they are now and have been  operated does not violate any zoning
ordinances, municipal regulations, or other Requirements of Laws, except for any
such  violations  which  would not,  individually  or in the  aggregate,  have a
Material  Adverse  Effect.  Except as set forth on Schedule  3.9, no  covenants,
easements,  rights-of-way,  or  regulations  of  record  impair  the uses of the
properties of the Company for the purposes for which they are now operated.  All
leases of real or personal  property by the Company are legal,  valid,  binding,
enforceable and in full force and effect and will remain legal, valid,  binding,
enforceable  and in  full  force  and  effect  on  identical  terms  immediately
following the Closing.  The Company has obtained all required material approvals
of  any  Governmental  Body  (including  Governmental  Permits)  required  to be
obtained  by the  Company in  connection  with the  operation  thereof,  and the
facilities  owned or leased by the Company have been operated and  maintained by
the Company in accordance with all Requirements of Laws.

                  3.10 Licenses and Permits. Attached hereto as Schedule 3.10 is
a  list  of  all  material  licenses,  certificates,   privileges,   immunities,
approvals,  franchises,  authorizations  and permits  held or applied for by the
Company from any Governmental  Body (herein  collectively  called  "Governmental
Permits") the absence of which could have a Material Adverse Effect. The Company
has complied in all material  respects with the terms and conditions of all such
Governmental  Permits,  and no violation of any such Governmental  Permit or the
Requirements  of Laws governing the issuance or continued  validity  thereof has
occurred other than  violations (if any) which would not  individually or in the
aggregate have a Material  Adverse Effect.  No additional  Government  Permit is
required from any  Governmental  Body thereof in connection  with the conduct of
the Business which Governmental  Permit, if not obtained,  would have a Material
Adverse Effect.

                  3.11 Intellectual  Property.  Attached hereto as Schedule 3.11
is a  list  and  brief  description  of  all  patents,  trademarks,  tradenames,
copyrights,  licenses,  computer software or data (other than general commercial
software), trade secrets, or applications therefor owned by or registered in the
name of the  Company  or in which  the  Company  has any  rights,  licenses,  or
immunities  (collectively,   the  "Intellectual  Property").   The  Company  has
furnished  the  Investors  with  copies of all license  agreements  to which the
Company  is a party,  either  as  licensor  or  licensee,  with  respect  to any
Intellectual Property.  Except as described on Schedule 3.11 hereto, the Company
has good and marketable title to or the right to use such Intellectual




                                       14

<PAGE>



Property and all inventions,  processes,  designs,  formulae,  trade secrets and
know-how necessary for the conduct of its Business, in its Business as presently
conducted without the payment of any royalty or similar payment, and the Company
is not infringing on any patent right,  tradename,  copyright or trademark right
or other Intellectual  Property right of others, and neither the Company nor the
Stockholders are aware of any infringement by others of any such rights owned by
the Company.

                  3.12 Compliance with Laws. The Company has (i) complied in all
material respects with all Requirements of Laws,  Governmental Permits and Court
Orders  applicable  to the Business  and has filed with the proper  Governmental
Bodies  all  statements  and  reports  required  by all  Requirements  of  Laws,
Governmental  Permits  and  Court  Orders  to which  the  Company  or any of its
employees (because of their activities on behalf of the Company) are subject and
(ii)  conducted the Business and is in compliance in all material  respects with
all  federal,  state  and local  energy,  public  utility,  health,  safety  and
environmental  Requirements  of Laws,  Governmental  Permits  and  Court  Orders
including the Clean Air Act, the Clean Water Act,  RCRA, the Safe Drinking Water
Act, CERCLA, OSHA, the Toxic Substances Control Act and any similar state, local
or  foreign  laws  (collectively  "Environmental  Obligations")  and  all  other
federal,  state,  local or foreign  governmental  and  regulatory  requirements,
except, in the case of both (i) and (ii) above, where any such failure to comply
would not, in the aggregate,  have a Material Adverse Effect.  No claim has been
made by any  Governmental  Body (and,  to the  knowledge  of the Company and the
Stockholders,  no such claim is  anticipated)  to the effect  that the  Business
fails to comply,  in any respect,  with any  Requirements of Laws,  Governmental
Permit or Environmental  Obligation or that a Governmental Permit or Court Order
is necessary in respect thereto.

                  3.13 Insurance.  Attached hereto as Schedule 3.13 is a list of
all  policies  of fire,  liability,  business  interruption  or  other  forms of
insurance and all fidelity  bonds held by or  applicable  to the Company,  which
Schedule  sets  forth in respect of each such  policy  the policy  name,  policy
number,  carrier,  term,  type of coverage,  deductible  amount or  self-insured
retention  amount,  limits of coverage  and annual  premium.  Copies of all such
insurance  policies have been delivered to the  Investors.  No event relating to
the  Company has  occurred  which will  result in (i)  cancellation  of any such
insurance  policies;  (ii) a retroactive upward adjustment of premiums under any
such insurance  policies;  or (iii) any  prospective  upward  adjustment in such
premiums.  All of such  insurance  policies will remain in full force and effect
following the Closing.

                  3.14     Employee Benefit Plans.

                           (a)  Employee   Welfare  Benefit  Plans.   Except  as
disclosed on Schedule  3.14,  the Company does not maintain or contribute to any
"employee  welfare  benefit  plan" as such term is defined  in  Section  3(1) of
ERISA.  With respect to each such plan:  (i) the plan is in material  compliance
with ERISA; (ii) the plan has been administered in accordance with its governing
documents;  (iii) neither the plan,  nor any fiduciary with respect to the plan,
has engaged in any  "prohibited  transaction" as defined in Section 406 of ERISA
other than any transaction  subject to a statutory or administrative  exemption;
(iv)  except for the  processing  of routine  claims in the  ordinary  course of
administration,  there is no material litigation,  arbitration or disputed claim
outstanding;  and (v) all premiums due on any insurance  contract  through which
the plan is funded have been paid.

                           (b)  Employee   Pension  Benefit  Plans.   Except  as
disclosed in Schedule  3.14,  the Company does not maintain or contribute to any
arrangement  that is or may be an "employee  pension  benefit plan"  relating to
employees,  as such term is defined in Section  3(2) of ERISA.  With  respect to
each such plan: (i) the plan is qualified  under Section 401(a) of the Code, and
any trust through which the plan is funded meets the  requirements  to be exempt
from federal  income tax under Section  501(a) of the Code;  (ii) the plan is in
material  compliance  with  ERISA;  (iii)  the  plan has  been  administered  in
accordance with its governing  documents as modified by applicable law; (iv) the
plan has not suffered an "accumulated  funding deficiency" as defined in Section
412(a) of the Code; (v) the plan has not engaged in, nor has any fiduciary with




                                       15

<PAGE>



respect to the plan  engaged  in,  any  "prohibited  transaction"  as defined in
Section  406 of  ERISA or  Section  4975 of the Code  other  than a  transaction
subject to statutory  or  administrative  exemption;  (vi) the plan has not been
subject to a "reportable  event" (as defined in Section  4043(b) of ERISA),  the
reporting  of which has not been waived by  regulation  of the  Pension  Benefit
Guaranty  Corporation;  (vii) no termination or partial  termination of the plan
has occurred  within the meaning of Section  411(d)(3)  of the Code;  (viii) all
contributions required to be made to the plan or under any applicable collective
bargaining  agreement have been made to or on behalf of the plan;  (ix) there is
no material litigation,  arbitration or disputed claim outstanding;  and (x) all
applicable  premiums due to the Pension  Benefit  Guaranty  Corporation for plan
termination insurance have been paid in full on a timely basis.

                           (c)   Employment  and  Non-Tax   Qualified   Deferred
Compensation  Arrangements.  Except as disclosed in Schedule  3.14,  the Company
does not  maintain or  contribute  to any  retirement  or deferred or  incentive
compensation or stock purchase,  stock grant or stock option arrangement entered
into between the Company and any current or former officer, consultant, director
or  employee  of  the  Company  that  is  not  intended  to be a  tax  qualified
arrangement under Section 401(a) of the Code.

                  3.15  Contracts and  Agreements.  Attached  hereto as Schedule
3.15  is a  list  and  brief  description  of all  written  or  oral  contracts,
commitments,  leases,  and  other  agreements  (including,  without  limitation,
promissory  notes,  loan  agreements,   and  other  evidences  of  indebtedness,
guarantees,  agreements with distributors,  suppliers,  dealers, franchisors and
customers,  and service  agreements) to which the Company is a party or by which
the  Company  or its  properties  are bound  pursuant  to which the  obligations
thereunder of either party thereto are, or are contemplated as being, $50,000 or
greater  (collectively,  the  "Contracts").  The Company is not and, to the best
knowledge  of the Company  and the  Stockholders,  no other party  thereto is in
default (and no event has occurred which, with the passage of time or the giving
of notice, or both, would constitute a default) under any of the Contracts,  and
the Company has not waived any right under any of the Contracts.  Subject to the
foregoing,  all of the  Contracts  to which the  Company  is a party are  legal,
valid, binding,  enforceable and in full force and effect and will remain legal,
valid,  binding,  enforceable  and in full force and effect on  identical  terms
immediately after the Closing. Except as set forth in Schedule 3.15, the Company
has not guaranteed any obligations of any other Person.

                  3.16 Claims and Proceedings.  Attached hereto as Schedule 3.16
is a  list  and  brief  description  of all  material  claims,  actions,  suits,
proceedings,   or  investigations  pending  (or,  to  the  Company's  knowledge,
threatened against) or affecting the Company or any of its properties or assets,
at  law  or in  equity,  or  before  or by  any  court,  municipality  or  other
Governmental  Body.  Except as set forth on Schedule 3.16,  none of such claims,
actions,  suits,  proceedings,  or  investigations  will result in any  material
liability or loss to the Company.  The Company has not been,  and the Company is
not now,  subject  to any Court  Order,  stipulation,  or consent of or with any
court or Governmental Body. No inquiry,  action or proceeding has been asserted,
threatened  or  instituted  to  restrain  or prohibit  the  carrying  out of the
transactions contemplated by this Agreement or to challenge the validity of such
transactions or any part thereof or seeking damages on account  thereof.  Except
as set forth on  Schedule  3.16,  there is no basis for any such valid  claim or
action.

                  3.17     Taxes.

                           (a) All  Federal,  foreign,  state,  county and local
income,  gross receipts,  excise,  property,  franchise,  license,  sales,  use,
withholding,  and other Taxes and all Tax Returns which are required to be filed
by the Company on or before the date hereof have been filed  within the time and
in the manner provided by law, and all such Tax Returns are true and correct and
accurately  reflect the Tax  liabilities  of the Company.  No Tax Returns of the
Company or the Stockholders are presently subject to an extension of the time to
file.  Other  than  as  described  in the  proviso  which  follows,  all  Taxes,
assessments,  penalties,  and  interest  of the  Company  which have  become due
pursuant  to such Tax  Returns  or any  assessments  received  have been paid or
adequately accrued on the Company's Financial Statements;  provided, however, in
respect




                                       16

<PAGE>



of the gross receipts tax in Fairfax County,  Virginia  disclosed by the Company
in Schedules  3.4(b) and 3.27,  the Company will satisfy and  discharge any such
taxes prior to Closing. The provisions for Taxes reflected on the balance sheets
contained in the Financial Statements are adequate to cover all of the Company's
Tax liabilities for the respective periods then ended and all prior periods. The
Company has not  executed  any  presently  effective  waiver or extension of any
statute of limitations  against  assessments and collection of Taxes,  and there
are no pending or threatened claims, assessments,  notices, proposals to assess,
deficiencies,  or audits with respect to any such Taxes. For Governmental Bodies
with respect to which the Company does not file Tax Returns,  no such government
body has  claimed  that any of the  Company is or may be subject to  taxation by
that  government  body.  The Company has withheld and paid all Taxes required to
have been  withheld  and paid in  connection  with  amounts paid or owing to any
employee,  stockholder,  creditor,  independent contractor or other party. There
are no tax liens on any of the property or assets of the Company.

                           (b) Neither the Company nor any other corporation has
filed an election  under  section  341(f) of the Code that is  applicable to the
Company  or any  assets  held by the  Company.  The  Company  has not  made  any
payments,  is not  obligated  to make  any  payments,  and is not a party to any
agreement  that  under  certain  circumstances  could  obligate  it to make  any
payments that will not be deductible  under Code Sec.  280G. The Company has not
been a United States real  property  holding  corporation  within the meaning of
Code  Sec.  897(c)(2)  during  the  applicable  period  specified  in Code  Sec.
897(c)(1)(A)(ii).  The Company is not a party to any Tax  allocation  or sharing
agreement.  Since September 1992, the Company has not been (nor does the Company
have any  liability  for  unpaid  Taxes  because  it once  was) a  member  of an
affiliated group during any part of which return year any corporation other than
the Company  also was a member of the  affiliated  group.  The Company has never
made an election to be taxed under subchapter S of the Code.

                           (c) No transaction  contemplated by this Agreement is
subject to  withholding  under  Section  1445 of the Code and no stock  transfer
taxes,  real estate  transfer  taxes or similar  taxes will be imposed  upon the
issuance and sale of the Shares pursuant to this Agreement.

                  3.18 Personnel.  Attached hereto as Schedule 3.18 is a list of
the names and  annual  rates of  compensation  of the  directors  and  executive
officers of the Company,  and of the employees of the Company whose annual rates
of  compensation  during the fiscal  year ended June 30,  1996  (including  base
salary, bonus and incentive pay) exceed (or by December 31, 1996 are expected to
exceed)  $75,000.  Schedule  3.18 also  summarizes  the bonus,  profit  sharing,
percentage  compensation,  company automobile,  club membership,  and other like
benefits,  if any, paid or payable to such  directors,  officers,  and employees
during the  Company's  fiscal year ended June 30,  1996 and to the date  hereof.
Schedule  3.18  also  contains  a brief  description  of all  material  terms of
employment agreements to which the Company is a party and all severance benefits
which any director,  officer or employee of the Company is or may be entitled to
receive.  The employee relations of the Company are good and there is no pending
or  threatened  labor  dispute  or  union  organization  campaign.  None  of the
employees of the Company are represented by any labor union or organization. The
Company is in compliance in all material  respects with all Requirements of Laws
respecting  employment  and  employment  practices,   terms  and  conditions  of
employment,  and  wages and  hours,  and are not  engaged  in any  unfair  labor
practices. Neither the Company nor the Stockholders has been advised, or has any
reason to believe, that any of the persons whose names are set forth on Schedule
3.18 or any other  employee  will not agree to remain  employed  by the  Company
after the  consummation of the  transactions  contemplated  hereby.  There is no
unfair  labor  practice  claim  against the Company  before the  National  Labor
Relations Board, or any strike,  dispute,  slowdown,  or stoppage pending or, to
the  knowledge  of the  Company  and the  Stockholders,  threatened  against  or
involving the Company, and none has occurred.

                  3.19   Business   Relations.   Neither  the  Company  nor  the
Stockholders know or have any reason to believe that any supplier of the Company
or customer  comprising more than 5% of the Company's sales or service  revenues
will cease to do business with the Company after the consummation of the




                                       17

<PAGE>



Transactions  in the same manner and at the same levels as previously  conducted
with the Company,  except for any  reductions  which do not result in a Material
Adverse  Change.  Neither the Company nor the  Stockholders  have  received  any
notice of any material  disruption  (including delayed deliveries or allocations
by suppliers) in the  availability of any material portion of the materials used
by the Company nor are the Company or the Stockholders  aware of any facts which
could lead it  reasonably  to believe that the  Business  will be subject to any
such material disruption.

                  3.20     Accounts Receivable; Inventory.

                           (a) Accounts Receivable.  All of the accounts, notes,
and loans  receivable  that have been  recorded  on the books of the Company are
bona fide and represent  amounts validly due for goods sold or services rendered
and all such amounts (net of normal reserves for doubtful accounts and valuation
allowances  recorded in  accordance  with GAAP) will be collected in full within
180 days  following  the Closing  Date.  Except as  disclosed  on Schedule  3.20
hereto, (i) all of such accounts, notes, and loans receivable are free and clear
of any Encumbrances;  (ii) none of such accounts,  notes, or loans receivable is
subject to any  offsets or claims of offset;  and (iii) none of the  obligors of
such accounts,  notes, or loans  receivable has given notice that it will or may
refuse to pay the full amount or any portion thereof.

                           (b) Inventory.  Except as disclosed on Schedule 3.20,
all of the  Company's  Inventory  (as  defined  below) are free and clear of any
Encumbrances.  For  purposes  of this  Agreement,  "Inventory"  means all of the
Company's photocopiers,  facsimile equipment, automated office equipment, office
furniture  and  related  parts and  supplies  held for  resale or lease or to be
furnished under contracts for service.

                  3.21 Bank Accounts. Attached hereto as Schedule 3.21 is a list
of all banks or other  financial  institutions  with  which the  Company  has an
account or maintains a safe deposit box,  showing the type and account number of
each such account and safe  deposit box and the names of the persons  authorized
as signatories thereon or to act or deal in connection therewith.

                  3.22 Agents.  Except as set forth on Schedule 3.22 hereto, the
Company  has not  designated  or  appointed  any  Person to act for it or on its
behalf pursuant to any power of attorney or agency which is presently in effect.

                  3.23  Warranties.  Except  as set forth on  Schedule  3.23 and
except for warranty  claims that are typical and in the  ordinary  course of the
Business, (i) no claim for breach of product or service warranty to any customer
has been made against the Company since June 30, 1996; and (ii) to the Company's
knowledge,  no state of facts exists, and no event has occurred,  which may form
the basis of any present  claim  against the Company for liability on account of
any express or implied  warranty to any third party in connection  with products
sold or services rendered by the Company.

                  3.24 Brokers.  Neither the Company nor either  Stockholder has
engaged, or caused to be incurred any liability to any finder,  broker, or sales
agent in  connection  with the  origin,  negotiation,  execution,  delivery,  or
performance of this Agreement or the transactions contemplated hereby.

                  3.25  Interest  in  Competitors,  Suppliers,  Customers,  Etc.
Except  as  disclosed  in  Schedule  3.25  hereto,  no  officer,   director,  or
Stockholder or any affiliate of any such officer, director, or Stockholder,  has
any ownership interest in any competitor,  supplier,  or customer of the Company
(other than ownership of securities of a publicly-held corporation of which such
Person owns, or has real or  contingent  rights to own, less than one percent of
any class of  outstanding  securities)  or any property used in the operation of
the Business.





                                       18

<PAGE>



                  3.26   Indebtedness   To   and   From   Officers,   Directors,
Stockholders,  and  Employees.  Attached  hereto as Schedule  3.26 is a list and
brief  description  of the payment terms of all  indebtedness  of the Company to
officers,  directors,   Stockholders  and  employees  of  the  Company  and  all
indebtedness of officers,  directors,  Stockholders and employees of the Company
to the Company,  excluding  indebtedness for travel advances or similar advances
for expenses  incurred on behalf of and in the ordinary  course of the Business,
consistent with past practices.

                  3.27 Undisclosed Liabilities.  Except as indicated in Schedule
3.27 and the other  Schedules  hereto,  the Company  does not have any  material
liabilities (whether absolute,  accrued,  contingent or otherwise),  of a nature
required by GAAP to be  reflected on a corporate  balance  sheet or disclosed in
the notes thereto, except such liabilities which are accrued or reserved against
in the Financial Statements or disclosed in the notes thereto.

                  3.28 Information Furnished. The Company has made (or, prior to
the Closing,  will make)  available to the Investors  true and correct copies of
all corporate  records of the Company and all agreements,  documents,  and other
items listed on the Schedules to this Agreement or referred to herein and except
as disclosed in Schedule  3.28 hereto,  neither this  Agreement,  the  Schedules
hereto, nor any information,  instrument, or document delivered to the Investors
pursuant to this Agreement  contains any untrue  statement of a material fact or
omits any material fact necessary to make the statements  herein or therein,  as
the case may be, not misleading.

                  3.29  No  Liens  on  Shares.  In  respect  of the  sale of the
Cerberonics  Shares being redeemed  pursuant to the Redemption and the Manoogian
Shares  being  purchased  pursuant  to the Stock  Purchase,  respectively,  each
Stockholder represents and warrants individually in respect of their own Shares,
and not jointly and severally,  to the Company that the Cerberonics  Parties own
the Cerberonics  Shares and Manoogian owns the Manoogian Shares,  free and clear
of any  Encumbrances  other than the rights and  obligations  arising under this
Agreement,  and  none of such  shares  is  subject  to any  outstanding  option,
warrant,  call,  or similar  right of any other Person to acquire the same,  and
none of such shares is subject to any restriction on transfer thereof except for
restrictions  imposed by  applicable  federal  and state  securities  laws.  The
Cerberonics  Parties and Manoogian  have full power and authority to convey good
and  marketable  title  to the  Cerberonics  Shares  and the  Manoogian  Shares,
respectively, free and clear of any Encumbrances.

                  3.30  Due  Organization.   In  respect  of  the  sale  of  the
Cerberonics Shares pursuant to the Redemption,  the Cerberonics Parties (but not
Manoogian)  represent  and warrant to the Company  that each of the  Cerberonics
Parties is a corporation duly organized,  validly existing, and in good standing
under  the  laws of the  State of  Delaware  and has full  corporate  power  and
authority  to carry on its  business  as now  conducted  and as  proposed  to be
conducted through Closing.


                                   ARTICLE IV
                 REPRESENTATIONS AND WARRANTIES OF THE INVESTORS

                  Each of the  Investors  represents  and  warrants  jointly and
severally to the Company and the Stockholders as follows:

                  4.1 Due  Organization  of GTCR  IV.  GTCR  IV  represents  and
warrants  that it is a Delaware  limited  partnership  duly  organized,  validly
existing,  and in good standing  under the laws of the State of Delaware and has
full power and authority to enter into and perform this Agreement.

                  4.2 Due Authorization. The execution, delivery and performance
of  this  Agreement  has  been  duly  authorized  by all  necessary  individual,
partnership or corporate action on the part of each Person




                                       19

<PAGE>



comprising the Investors,  as  appropriate,  and the Agreement has been duly and
validly  executed and  delivered by each of the Investors  and  constitutes  the
valid and binding obligation of each of the Investors, enforceable in accordance
with its terms. The execution,  delivery,  and performance of this Agreement and
the Escrow Agreement (as well as all other instruments, agreements, certificates
or other documents  contemplated  hereby) by the Investors shall not (a) violate
any Requirements of Laws or Court Order of any  Governmental  Body applicable to
any Investor or its or his respective property, (b) violate or conflict with, or
permit the cancellation of, or constitute a default under any agreement to which
any  Investor  is a party  or by which  any  Investor  or its or his  respective
property  is  bound,  (c)  permit  the  acceleration  of  the  maturity  of  any
indebtedness of, or any  indebtedness  secured by the property of, any Investor,
or (d) violate or conflict  with any  provision  of the  Certificate  of Limited
Partnership of GTCR IV or the charter or bylaws of any other Investor which is a
corporation or a partnership (as applicable).

                  4.3 No Brokers.  None of the Investors has engaged,  or caused
to be incurred any liability to any finder,  broker or sales agent in connection
with the  origin,  negotiation,  execution,  delivery,  or  performance  of this
Agreement or the transactions contemplated hereby.

                  4.4 Investment.  Each Investor hereby represents that they are
acquiring the Shares purchased  hereunder or acquired  pursuant hereto for their
own account with the present  intention of holding such  securities for purposes
of  investment,  that each of them is an  Accredited  Investors  as that term is
defined  in Rule 501  under  the  Securities  Act and  that  each of them has no
intention of selling such  securities in a public  distribution  in violation of
the federal  securities laws or any applicable state  securities laws;  provided
that nothing contained herein will prevent the Investors and subsequent  holders
of Restricted  Securities from  transferring  such securities in compliance with
the provisions of Section 6.2 hereof.

                  4.5 No Undisclosed  Agreement.  Other than as described in the
Exhibits hereto, there are no undisclosed  agreements between the Investors,  or
any one of them, or any Affiliate of any of them (including, without limitation,
Global Imaging Systems, Inc.), on the one hand, and the Company and/or either of
the Stockholders or the Eriksons, on the other hand.


                                    ARTICLE V
                  COVENANTS OF THE COMPANY AND THE STOCKHOLDERS

                  5.1 Conduct of Business Pending Closing. From the date of this
Agreement to the Closing Date:

                           (a)   Negative   Covenants.   Except   as   otherwise
contemplated  by this  Agreement,  or as the Investors may otherwise  consent to
orally or in writing,  the Company will not and the Stockholders shall cause the
Company  not to engage  in any  material  activity  or enter  into any  material
transaction  outside of the ordinary and usual course of the  Business.  Without
limiting  the  generality  of the  foregoing,  except  as  contemplated  by this
Agreement, the Company will not and the Stockholders shall cause the Company not
to: (i) declare, set aside, or pay any dividend or other distribution in respect
of its capital stock, or make any redemption,  purchase or other  acquisition of
any  shares  of  its  capital  stock;  provided,   however,  that  dividends  or
distributions of cash may be made subject to the closing condition  contained in
Section  7.1(d);  (ii)  issue or sell any  shares  of its  capital  stock or any
options,  warrants or other rights to purchase any such shares or any securities
convertible  into or exchangeable for such shares or any other securities of the
Company or take any action to reclassify or recapitalize or split up its capital
stock; (iii) merge with any other company, consolidate or sell or consent to the
sale of any of the material assets of the Company;  (iv) outside of the ordinary
course of the Business (A) change or increase compensation payable, or to become
payable by the Company to its officers or  employees,  (B) increase  benefits or
benefit  plan costs,  or (C) except for the  acceleration  of the payment of the
Company's  "return on equity" bonus  arrangement with Manoogian and the Eriksons
in respect




                                       20

<PAGE>



of the  Company's  fiscal  year ended June 30,  1997  (which  will be paid (on a
pro-rated  basis for the partial  year in the event the  Closing  Date is before
June 30,  1997)  prior to the Closing  Date as opposed to October  1997 as would
have been the case under  normal  circumstances),  change any bonus,  insurance,
pension,  compensation or other benefit plan or arrangement  made for or with or
covering  any  officers or  employees  of the  Company;  (v) waive any rights of
substantial  value  which,  singly  or in the  aggregate,  are  material  to the
Business; (vi) change the Certificate of Incorporation or Bylaws of the Company;
(vii)  borrow or agree to borrow any funds other than  through  existing  credit
relationships;  (viii)  pledge or mortgage or agree to pledge or mortgage any of
the  properties or assets of the Company;  (ix)  guarantee or agree to guarantee
the  obligations  of any  Person;  (x)  make  or  commit  to  make  any  capital
expenditures in excess of $25,000  individually,  and $100,000 in the aggregate;
(xi) make any loans to any of the Company's officers, directors and stockholders
(except for  ordinary  course of business  advances for  out-of-pocket  expenses
incurred in the performance of the Business); or (xii) dispose of or acquire any
material assets outside of the ordinary  course of the Business,  or agree to do
any of the foregoing.

                           (b) Conduct of  Business.  The  Company  will and the
Stockholders  shall cause the Company to continue to record its transactions and
to prepare its financial  statements  consistently  and in accordance with GAAP,
consistent with past practice. The Company will and the Stockholders shall cause
the Company to  preserve  substantially  intact its  business  organization  and
present  relationships  with  its  customers,  suppliers  and  employees  and to
maintain all of its insurance currently in effect.

                           (c) Nature of Breach.  The Company  shall give prompt
notice to the  Investors  of any  notice of  material  default  received  by the
Company  subsequent to the date of this Agreement under any material  instrument
or agreement,  or any Material  Adverse  Change  occurring  prior to the Closing
Date.

                           (d)      No Solicitation.

                                    (i)  Immediately  following the execution of
                  this Agreement, the Company and the Stockholders will and will
                  use their best efforts to cause each of their  representatives
                  (including such parties' employees,  counsel, investment bank,
                  accountants,  and  similar  consultants  and  representatives)
                  ("Representatives")   to   terminate   any  and  all  existing
                  activities,  discussions and  negotiations  with third parties
                  (other  than   Investors)   with   respect  to  any   possible
                  transaction involving the acquisition of the Company's capital
                  stock or assets or the merger or other business combination of
                  the Company with or into any such third party.

                                    (ii) The Company and the  Stockholders  will
                  not  (and  will  use  their  best   efforts  to  cause   their
                  Representatives   not  to)  solicit,   initiate  or  knowingly
                  encourage the  submission of, any offer or proposal to acquire
                  all or any part of the capital  stock of the Company or all or
                  any material  portion of the assets or business of the Company
                  (other than the transactions  contemplated by this Agreement),
                  whether by merger,  purchase of stock or assets, tender offer,
                  exchange  offer  or  otherwise  (an  "Alternative  Proposal"),
                  provided,  however,  that, if the Company, the Stockholders or
                  any of their  Representatives  shall  receive  an  Alternative
                  Proposal,   then  such   Representatives   may  discuss   such
                  Alternative   Proposal   with  the  Person   presenting   such
                  Alternative Proposal and provide information to such Person if
                  the board of  directors  of Cerbco  determines  in good faith,
                  after considering the advice of its legal counsel,  that it is
                  required to do so in order to discharge properly its fiduciary
                  duty to Cerbco's stockholders.

                                    (iii) The Company and the Stockholders  will
                  promptly communicate to the Investors the terms and conditions
                  of any  Alternative  Proposal  that they may  receive and will
                  keep the  Investors  informed  as to the status of any actions
                  (including any discussions with




                                       21

<PAGE>



                  any potential third party acquiror in the form of proposals or
                  counter-proposals)   taken   pursuant   to  such   Alternative
                  Proposal.

                                    (iv) If the Company or the  Stockholders  or
                  any of their  Representatives  receive an Alternative Proposal
                  and the board of directors of Cerbco determines in good faith,
                  after considering the advice of its legal counsel,  that it is
                  required to do so in order to discharge properly its fiduciary
                  duty to Cerbco's  stockholders,  then such Representatives may
                  negotiate the terms of such Alternative Proposal and a binding
                  definitive agreement with such Person with respect thereto (an
                  "Alternative Transaction").

                                    (v)  Nothing in this  Section  5.1(d)  shall
                  permit  the  Company or the  Stockholders  to  terminate  this
                  Agreement  except as  specifically  provided in Section 9.1 or
                  9.3.

                           (e) Access to  Information.  The  Stockholders  shall
cause the Company to afford the Investors  access,  during normal business hours
and upon reasonable notice, to all of the assets,  properties,  books,  records,
and  agreements  of the Company,  and shall  furnish to the  Investors and their
representatives  such  information  regarding  the Company as the  Investors may
reasonably  request;  provided,  however,  that any such investigation  shall be
conducted in such a manner as not to interfere  unreasonably  with the operation
of the Business.

                           (f) Transfers or Restrictions. The Stockholders shall
not sell, transfer, pledge or grant a security interest in, or otherwise dispose
of or  encumber,  any of the  outstanding  shares  of the  capital  stock of the
Company without the consent of the Investors.

                  5.2 Cerbco Stockholders Meeting.  Cerbco shall take all action
necessary in accordance with applicable law and its certificate of incorporation
and by-laws to convene a meeting of its  stockholders as promptly as practicable
after the date hereof for the purpose of voting on the proposed  Redemption (the
"Redemption  Proposal").  The  board of  directors  of  Cerbco  shall  recommend
approval of the Redemption  Proposal and shall take all lawful action to solicit
such  approval,  including  the  timely  mailing  of a  Proxy  Statement  to the
stockholders of Cerbco,  which shall have been reviewed by the Investors.  It is
acknowledged  and agreed by the  Investors  that the Cerbco  board of  directors
intends to seek,  and  condition  the  consummation  of the  Redemption  on, the
separate approval of the Redemption  Proposal by a majority of the votes cast by
the non-Erikson  stockholders of Cerbco,  and that any such majority vote of the
votes  cast by the  non-Erikson  stockholders,  coupled  with  the  votes of the
Eriksons as provided in the Erikson  Voting  Agreement,  shall be  sufficient to
approve the  Redemption in accordance  with Delaware law and Cerbco's  corporate
charter documents.  Notwithstanding the above,  however, it shall be a condition
to the  mailing of such Proxy  Statement  that  Cerbco  shall have  received  an
opinion from a qualified,  independent  firm of investment  bankers or financial
advisors  selected by Cerbco  (which  opinion  shall be  acceptable  in form and
substance to Cerbco) to the effect that the  consideration to be received in the
Redemption by Cerberonics is fair to Cerbco from a financial  point of view, and
such  opinion  shall not have been  withdrawn,  revoked or  modified;  provided,
however, that the compensation  arrangements with such investment bank shall (i)
not be contingent on the successful  consummation  of the  Redemption,  and (ii)
provide that such bank shall be ineligible to receive compensation in connection
with the consummation of any Alternative  Transaction  consummated  prior to the
expiration  of 18 months  following  the  termination  of this  Agreement  under
Article IX.

                  5.3 Consents of Others. Prior to the Closing, the Stockholders
shall use their commercially  reasonable best efforts to obtain and to cause the
Company to obtain all  authorizations,  consents  and  permits  required  of the
Company or the  Stockholders  to permit  them to  consummate  the  Transactions,
including  without  limitation  any consents  required  under the Canon  License
Agreement described on Schedule 3.11 or under any of the Company's leases.





                                       22

<PAGE>



                  5.4  Stockholders'  Efforts.  The Company and the Stockholders
shall use all  reasonable  efforts to cause all conditions for the Closing to be
met.

                  5.5  Powers of  Attorney.  The  Stockholders  shall  cause the
Company to  terminate  at or prior to Closing all powers of attorney  granted by
the Company,  other than those relating to service of process,  qualification or
pursuant to governmental  regulatory or licensing agreements,  or representation
before the IRS or other government agencies.

                  5.6 Transfer Taxes. The Stockholders  shall be responsible for
and shall pay all stock  transfer or gains taxes (if any) incurred in connection
with  the  Redemption  (in the case of the  Cerberonics  Parties)  or the  Stock
Purchase (in the case of Manoogian).

                  5.7 Notice of  Developments;  Update of Disclosure  Schedules.
The  Company  and the  Stockholders  will  give  prompt  written  notice  to the
Investors  of  any  material  development  affecting  the  assets,  liabilities,
Business,  financial  condition,  operations  or  results of  operations  of the
Company and each party hereto will give prompt  written  notice to the others of
any  material  development  affecting  the  ability  of any of such  parties  to
consummate the  Transactions.  The Company and the  Stockholders  shall have the
right,  for a period from the date of this  Agreement  to that date which is not
later than fifteen (15)  business  days prior to the Closing Date, to update any
of the disclosure schedules provided under Article III; provided,  however, that
if such updated  schedules  reveal a change that is material  (defined as in the
preamble  to Article  III),  the  Investors  shall  notify the  Company  and the
Stockholders  within three (3) business days of receipt of such updated schedule
that the same  contains  such a material  change.  If after a period of ten (10)
business days from the receipt of the Investors'  notice, the parties are unable
to reach an agreement regarding an appropriate  adjustment to the Purchase Price
or other amendment to this Agreement that  adequately  compensates the Investors
for the adverse impact of such material change, then the Investors may, at their
option,  either (i) terminate this Agreement  without liability for the break-up
fee set forth in the first  sentence of Section  9.3, or (ii) waive the right to
claim  that  such  matter  constitutes  a  breach  of  the  representations  and
warranties of this Agreement under Section 7.1(b) or Article VIII.


                                   ARTICLE VI
                             POST-CLOSING COVENANTS

                  6.1 General. In case at any time after the Closing any further
action is legally necessary or reasonably desirable to carry out the purposes of
this Agreement, each of the parties will take such further action (including the
execution and delivery of such further  instruments  and documents) as any other
party reasonably may request, all at the sole cost and expense of the requesting
party (unless the requesting party is entitled to indemnification therefor under
Article  VIII below).  Each  Stockholder  acknowledges  and agrees that from and
after the Closing the Company will be entitled to possession  of all  documents,
books,  records,  agreements,  and  financial  data of any sort  relating to the
Company, which shall be maintained at the chief executive office of the Company;
provided,  however, that the Stockholders shall be entitled to reasonable access
to and to make copies of such books and records at its sole cost and expense and
the Company  will  maintain  the books,  records  and  material  financial  data
relating to the Company for a period of at least three (3) years.

                  6.2  Litigation  Support.  In the event and for so long as any
party actively is contesting or defending against any charge, complaint, action,
suit, proceeding,  hearing,  investigation,  claim, or demand in connection with
(i)  any  transaction  contemplated  under  this  Agreement  or (ii)  any  fact,
situation,   circumstance,   status,   condition,   activity,   practice,  plan,
occurrence,  event, incident, action, failure to act, or transaction on or prior
to the Closing  Date  involving  the  Company,  each of the other  parties  will
cooperate  with it and its  counsel in the contest or  defense,  make  available
their personnel, and provide such testimony and




                                       23

<PAGE>



access to their books and records as shall be reasonably necessary in connection
with the contest or defense,  all at the sole cost and expense of the contesting
or defending  party  (unless the  contesting  or defending  party is entitled to
indemnification therefor under Article VIII below).

                  6.3  Transition.  For a period of three  (3)  years  following
Closing, the Stockholders will not take any action that primarily is designed or
intended  to have the effect of  discouraging  any lessor,  licensor,  customer,
supplier,  or other business  associate of the Company from maintaining the same
business  relations with the Company after the Closing as it maintained with the
Company prior to the Closing. For a period of three (3) years following Closing,
the Stockholders will refer all customer  inquiries  relating to the Business to
the Company. In respect of Manoogian's commitment pursuant to the foregoing,  it
is acknowledged that his agreement thereto is in consideration of his receipt of
the Stock Purchase Price and is independent of any similar agreement pursuant to
the terms of the Manoogian Executive Agreement.

                  6.4  Confidentiality.  The Stockholders will treat and hold as
such all  Confidential  Information,  refrain from using any of the Confidential
Information  except in connection  with this Agreement for a period of three (3)
years from the Closing,  and deliver promptly to the Company or destroy,  at the
request and option of the Company,  all tangible embodiments (and all copies) of
the  Confidential  Information  which are in its possession  except as otherwise
permitted  herein.  In the event that any of the  Stockholders  is  requested or
required (by oral question or request for  information or documents in any legal
proceeding,  interrogatory,  subpoena,  civil  investigative  demand, or similar
process) to disclose any Confidential Information,  such Stockholder will notify
the Company promptly of the request or requirement.


                                   ARTICLE VII
            CONDITIONS TO OBLIGATION OF PARTIES TO CONSUMMATE CLOSING

                  7.1 Conditions to the Investors'  Obligations.  The obligation
of the Investors  under this  Agreement to consummate  the Closing is subject to
the conditions that:

                           (a)  Satisfaction  with Due Diligence.  The Investors
shall have the right to  conduct  their due  diligence  on the  Company  and the
Business,   and  it  is  a  condition  precedent  to  the  consummation  of  the
Transactions that the Investors shall be satisfied in all material respects with
their due  diligence  investigation  of the  Company;  provided,  however,  that
although the Investors may continue their due diligence investigation up through
the Closing Date, in order for the Investors to terminate  this Agreement due to
the results of such investigation  without liability for the $1,000,000 break-up
fee set forth in the first  sentence of Section 9.3, the  Investors  must notify
the Company and the Stockholders on or before the 60th day from the date of this
Agreement  that it has found a material  adverse matter or problem in the course
of such  investigation  such  that the  reasonably  demonstrable  impact  on the
Purchase Price  (whether as a result of an individual  adverse matter or problem
or in the aggregate for all such adverse  matters or problems) (the "Impact") is
in excess of $100,000.  Failure by the  Investors to provide such notice  within
such 60-day period shall  constitute a waiver by the Investors of this condition
precedent.  Any such notice shall contain a reasonably  detailed  description of
such matter or problem and the Company and the  Stockholders  shall have 15 days
to  either  (i)  resolve  the  matter  or cure  the  problem  to the  Investors'
reasonable  satisfaction,  or (ii) after good faith negotiations by all parties,
reach an agreement with the Investors regarding an appropriate adjustment to the
Purchase Price or other amendment to this Agreement that adequately  compensates
the Investors for the adverse impact of such matter or problem. For the purposes
of the previous sentence,  reducing the Purchase Price by an amount equal to the
Impact shall be deemed reasonable. Failure of either (i) or (ii) to occur within
such 15-day period may, at the option of the Investors,  result in a termination
of this Agreement by the Investors  (again,  without  liability for any break-up
fee under  Section  9.3).  If no such notice is delivered by the Investors on or
before the 60th day from the date of this Agreement, and the Investors terminate
this Agreement as a result of their due diligence  investigation,  then provided
that neither Section 9.1(c) or any of the other




                                       24

<PAGE>



termination  triggers under Section 9.1 are applicable,  the Investors shall owe
the break-up fee required by the first sentence of Section 9.3.

                           (b) Covenants,  Representations  and Warranties.  The
Company and the Stockholders  shall have performed in all material  respects all
obligations  and  agreements  and  complied in all  material  respects  with all
covenants  contained in this  Agreement to be performed and complied with by any
of them prior to or at the Closing Date. The  representations  and warranties of
the Company and the  Stockholders  set forth in this Agreement shall be accurate
in all  material  respects at and as of the Closing Date with the same force and
effect as though  made on and as of the  Closing  Date  except  for any  changes
resulting from activities or  transactions  which may have taken place after the
date hereof and which are permitted or  contemplated  by this Agreement or which
have been  entered  into in the  ordinary  course of business  and except to the
extent that such representations and warranties are expressly made as of another
specified date and, as to such representation, the same shall be true as of such
specified date.

                           (c) Hart-Scott-Rodino;  Other Consents. All statutory
requirements  for the valid  consummation by the Company and the Stockholders of
the transactions  contemplated by this Agreement,  including without  limitation
the  Hart-Scott-Rodino  Antitrust  Improvements  Act of  1976,  as  amended  (if
applicable),  shall have been  fulfilled  and all  authorizations,  consents and
approvals,  including without limitation those of all federal,  state, local and
foreign governmental agencies and regulatory authorities required to be obtained
in order to permit the  consummation  of the  transactions  contemplated  hereby
shall have been obtained in form and substance  reasonably  satisfactory  to the
Investors  unless such  failure  shall not have a Material  Adverse  Effect.  In
addition, the Company shall have obtained a consent from Canon under the License
Agreement  described  on  Schedule  3.11,  if same is  required  under the terms
thereof  as a result of the  Transactions.  Finally,  the  Boards of  Directors,
Cerbco, Cerberonics and the Company shall have approved the consummation of this
Agreement and the transactions contemplated hereby.

                           (d) Cash on Balance  Sheet.  The  Company's  cash and
cash equivalents  immediately prior to Closing shall on a consolidated  basis be
not less than  $800,000,  if the Closing  Date occurs  prior to the  Transaction
Date.  If the  Closing  Date is  subsequent  to the  Transaction  Date,  then in
accordance with Section 2.14, the Company's cash and cash  equivalents  shall be
not less than $800,000 as of the Transaction Date plus the cash component of the
Company's net income on the Closing Date.

                           (e) Discharge of Indebtedness and  Encumbrances.  The
Stockholders  and the Company shall have provided for the payment in full of all
Funded  Indebtedness  of the Company and all extended credit from vendors at the
Closing.  Such Funded Indebtedness as of December 31, 1996 is listed on Schedule
7.1(e)  hereto.  The  Stockholders  shall have also  caused the  Company to have
terminated or provided for the termination of all  Encumbrances of record on the
properties of the Company.

                           (f)  Material  Adverse  Change.  There  has  been  no
Material Adverse Change.

                           (g)  Recapitalization  Documents.  The Company  shall
have amended its Certificate of Incorporation to authorize the issuance of three
classes of common stock in accordance  with Exhibit F attached  hereto,  and the
Stockholders shall have received their  proportionate  shares of Class A Common,
Class B Common  and Class C Common  in  exchange  for  their  old  shares of the
Company's  common stock,  all as set forth in Section 2.1 and Part 2 of Schedule
2.

                           (h) Erikson Voting Agreement. The Eriksons shall have
complied in all material  respects with all  covenants  contained in the Erikson
Voting Agreement to be complied with by them prior to or at the Closing Date.





                                       25

<PAGE>



                           (i)  Cerbco  and  Cerberonics  Stockholder  Approval.
Pursuant to  applicable  law and  subject to the  provisions  of Section  5.2, a
majority  vote  approving  the sale of the  Cerberonics  Shares  pursuant to the
Redemption shall have been obtained from (i) the non-Erikson stockholders voting
as a group and (ii) the Eriksons.  In addition,  Cerbco, as the sole stockholder
of Cerberonics,  shall have approved the sale of the Cerberonics Shares pursuant
to the Redemption.

                           (j) Deliveries by the  Stockholders  and the Company.
The  following  shall be  delivered at the Closing by the  Stockholders  and the
Company:

                                    (i) Opinion of  Stockholders'  Counsel.  The
                  Investors shall have received  favorable  opinions of McGuire,
                  Woods, Battle & Boothe,  Arent Fox Kintner Plotkin & Kahn, and
                  Reichelt,  Nussbaum,  LaPlaca &  Miller,  counsel  to  Cerbco,
                  Manoogian  and the  Company,  respectively,  dated the Closing
                  Date,  in form  and  substance  mutually  satisfactory  to the
                  parties,  such terms of opinions in substantially the forms to
                  be attached  hereto prior to the Closing Date as Exhibits C-1,
                  C-2 and C-3.

                                    (ii) Certificates.  The Investors shall have
                  received   an   officer's   certificate   and  a   secretary's
                  certificate  of each of the  Company,  Cerbco and  Cerberonics
                  executed by officers of each,  dated the Closing Date, in form
                  and substance mutually satisfactory to the parties, such forms
                  of  certificates  to be in  substantially  the forms  attached
                  hereto as Exhibits D-1, D-2 and D-3.

                                    (iii)Escrow Agreement.  The Stockholders and
                  the  Company  shall have  delivered  to the  Investors  at the
                  Closing the duly executed Escrow  Agreement in the form of 
                  Exhibit A hereto required  pursuant to Section 2.7 hereof.

                                    (iv)  Resignation of Directors.  The Company
                  shall have received the properly  documented  resignations  of
                  incumbent directors of the Company other than Manoogian.

                                    (v)  Release.  The  Stockholders  shall have
                  delivered to the Company a general  release of  liabilities in
                  the form of Exhibit H-1  attached  hereto.  In  addition,  the
                  Stockholders   shall  have  delivered   general   releases  of
                  liabilities  to  each  other  substantially  in  the  form  of
                  Exhibits H-2 and H-3 attached hereto.

                                    (vi) Stock  Certificates.  The Company shall
                  have  issued  and  delivered  the  Investment  Shares  to  the
                  Investors  (allocated  as per Schedule 1, as updated  prior to
                  the  Closing),  Manoogian  shall have  delivered the Manoogian
                  Shares to the Investors  accompanied  by duly  executed  stock
                  powers,  together with any stock  transfer  stamps or receipts
                  for any transfer taxes required to be paid thereon as a result
                  of the Stock Purchase,  and  Cerberonics  shall have delivered
                  the  Cerberonics  Shares to the  Company  accompanied  by duly
                  executed stock powers, together with any stock transfer stamps
                  or receipts for any transfer taxes required to be paid thereon
                  as a result of the Redemption.

                           (k)  Ancillary  Documents.  The  Ancillary  Documents
shall have been executed and delivered by the respective parties thereto.

                  7.2   Conditions  to  the  Company's  and  the   Stockholders'
Obligations.  The  obligations  of the Company and the  Stockholders  under this
Agreement to consummate the Closing is subject to the conditions that:





                                       26

<PAGE>



                           (a) Covenants,  Representations  and Warranties.  The
Investors  shall have  performed in all material  respects all  obligations  and
agreements and complied in all material respects with all covenants contained in
this Agreement to be performed and complied with by the Investors prior to or at
the Closing and the representations and warranties of the Investors set forth in
Article IV hereof shall be accurate in all material  respects,  at and as of the
Closing  Date,  with the same force and  effect as though  made on and as of the
Closing Date except for any changes  resulting from  activities or  transactions
which may have taken  place  after the date  hereof and which are  permitted  or
contemplated  by the  Agreement  or which have been entered into in the ordinary
course of the  Business and except to the extent that such  representations  and
warranties  are  expressly  made as of another  specified  date and,  as to such
representations, the same shall be true as of such specified date.

                           (b)  Consents.  All  statutory  requirements  for the
valid  consummation  by the Investors of the  transactions  contemplated by this
Agreement   including  without   limitation  the   Hart-Scott-Rodino   Antitrust
Improvements Act of 1976, as amended (if applicable),  shall have been fulfilled
and all authorizations,  consents and approvals, including those of all federal,
state,  local and  foreign  governmental  agencies  and  regulatory  authorities
required to be obtained in order to permit the  consummation by the Investors of
the  transactions  contemplated  hereby  shall have been  obtained  unless  such
failure shall not have a Material Adverse Effect.  The Investors shall have used
their  reasonable best efforts to have obtained the release of the  Stockholders
from all personal guarantees with respect to the Company, if any.

                           (c) Deliveries by the Investors.  The following shall
be delivered at the Closing by the Investors:

                                    (i) Opinion of the Investors'  Counsel.  The
                  Stockholders  shall have received from Davis,  Graham & Stubbs
                  LLP, counsel to the Investors,  a favorable opinion, dated the
                  Closing Date, in form and substance  mutually  satisfactory to
                  the parties,  such form of opinion to be attached hereto prior
                  to the Closing Date as Exhibit E.

                                    (ii) Escrow  Agreement.  The Investors shall
                  have  delivered  to the  Stockholders  and the  Company at the
                  Closing  the duly  executed  Escrow  Agreement  in the form of
                  Exhibit A hereto required pursuant to Section 2.7 hereof.

                                    (iii)  Purchase  Price for GTCR Shares.  The
                  Company  shall  have  received  from  GTCR  IV the  Investment
                  Proceeds.

                                    (iv)    Ancillary Documents.  The Investors
                  shall have executed and delivered the Ancillary Documents.

                           (d) Deliveries in Connection With the Redemption. All
conditions precedent to the Redemption shall have been met and the Redemption by
the Company of the  Cerberonics  Shares shall have been  consummated  and Cerbco
shall have received the Net Redemption Price.

                           (e) Deliveries in Connection With the Stock Purchase.
All  conditions  precedent  to the Stock  Purchase  shall  have been met and the
purchase of Investor  Shares by the Investors  shall have been  consummated  and
Manoogian shall have received the Net Stock Purchase Price.


                                  ARTICLE VIII
                                 INDEMNIFICATION





                                       27

<PAGE>



                  Notwithstanding  anything to the  contrary in this  Agreement,
the  Investors,  the  Company  and  the  Stockholders  shall  have no  claim  of
entitlement  for  reimbursement  of losses or damages in any way  related to the
Transactions under this Agreement except as provided in this Article VIII.

                  8.1  Indemnification  by the  Stockholders.  The  Stockholders
agree  to,  individually  and not  jointly  and  severally,  indemnify  and hold
harmless the Investors or the Company (post-Closing) and each officer, director,
and affiliate of any Investor or the Company (post-Closing)  (collectively,  the
"Indemnified  Parties")  from and against any and all damages,  losses,  claims,
liabilities,  demands, charges, suits, penalties,  costs and expenses (including
court  costs  and   reasonable   attorneys'   fees  and  expenses   incurred  in
investigating and preparing for any litigation or proceeding) (collectively, the
"Indemnifiable  Costs"), which any of the Indemnified Parties may sustain, or to
which any of the  Indemnified  Parties may be subjected,  arising out of (A) any
misrepresentation,  breach  or  default  by  the  Stockholders  or  the  Company
(pre-Closing)  of or under any of the covenants,  agreements or other provisions
of this Agreement or any agreement or document executed in connection  herewith;
(B) the assertion and final  determination of any claim or liability against any
of the  Indemnified  Parties by any Person  based upon the facts  which form the
alleged basis for any litigation to the extent it should have been, but was not,
reserved for in the Financial  Statements in accordance  with GAAP;  and (C) the
Company's  (pre-Closing)  or a  Stockholder's  tortious acts or omissions to act
prior to  Closing  for which the  Company  did not  carry  liability  insurance,
whether or not such acts or  omissions to act result in a breach or violation of
any representation or warranty. Determination of whether the Company, on the one
hand,  or the  Investors,  on the other hand,  is  entitled  to  indemnification
hereunder  shall be made by such parties in light of the economic impact or loss
caused by the matter  which is the subject of the claim of  indemnification.  By
way of example,  a claim of  indemnification  for breaches of the representation
made in Section 3.17 (Taxes)  would impact the Company so that the Company would
be entitled to indemnification.  A claim of indemnification based on a breach of
Section 3.29 (No Liens on Shares) would affect the Investors'  investment in the
Company  directly (as opposed to  derivatively),  so that the Investors would be
entitled to indemnification.

                  8.2  Defense  of  Claims.  If any  legal  proceeding  shall be
instituted,  or any claim or  demand  made,  against  any  Indemnified  Party in
respect of which the  Stockholders  may be liable  hereunder,  such  Indemnified
Party shall give prompt written notice thereof to the  Stockholders  and, except
as  otherwise  provided in Section 8.4 below,  the  Stockholders  shall have the
right to  defend,  or  cause  the  Company  or its  successors  to  defend,  any
litigation,   action,   suit,   demand,   or  claim  for  which  they  may  seek
indemnification  unless,  in the  reasonable  judgment  of the  Investors,  such
litigation,  action,  suit, demand, or claim, or the resolution  thereof,  would
have an ongoing effect on the Investors, the Company or its successors, and such
Indemnified  Party shall extend  reasonable  cooperation in connection with such
defense,  which  shall  be at  the  Stockholders'  expense.  In  the  event  the
Stockholders  fail to defend the same within a  reasonable  length of time,  the
Indemnified  Parties  and/or the Company (as  appropriate)  shall be entitled to
assume the defense thereof,  and the  Stockholders  shall be liable to repay the
Indemnified  Parties  and/or  the  Company  (as  appropriate)  for all  expenses
reasonably  incurred  in  connection  with said  defense  (including  reasonable
attorneys'  fees and settlement  payments) if it is determined that such request
for  indemnification was proper. If the Stockholders shall not have the right to
assume  the  defense  of any  litigation,  action,  suit,  demand,  or  claim in
accordance with either of the two preceding  sentences,  the Indemnified Parties
shall have the right to control the  defense of and to settle,  with the consent
of the  Stockholders,  which consent shall not be  unreasonably  withheld,  such
litigation,  action,  suit,  demand,  or claim,  but the  Stockholders  shall be
entitled, at their own expense, to participate in such litigation, action, suit,
demand, or claim.

                  8.3 Escrow Claim. If any claim for  indemnification is made by
an  Indemnified  Party  pursuant to this Article VIII prior to the expiration of
the Escrow Period, such Indemnified Party may apply to the Escrow Agent provided
in Section 2.7 of this Agreement for  reimbursement  of such claim in accordance
with the provisions of the Escrow Agreement.





                                       28

<PAGE>



                  8.4 Tax Audits,  Etc. In the event of an audit of a Tax Return
of the Company with respect to which an  Indemnified  Party might be entitled to
indemnification  pursuant to this Article VIII, the Stockholders  shall have the
right in  proportion  to their  respective  interest in the Company prior to the
consummation  hereof, to control any and all such audits which may result in the
assessment  of additional  Taxes against the Company and any and all  subsequent
proceedings in connection  therewith,  including  appeals  (subject to the prior
written consent of the Investors, which shall not unreasonably be withheld). The
Company and the  Stockholders  shall each cooperate  fully with the other in all
matters relating to any such audit or other Tax proceeding  (including according
access to all records pertaining thereto), and will execute and file any and all
consents,  powers  of  attorney,  and  other  documents  as shall be  reasonably
necessary  in  connection  therewith.  If  additional  Taxes are  payable by the
Company  as a result of any such  audit or other  proceeding,  the  Stockholders
shall be responsible for and shall promptly pay their proportionate share of all
Taxes,  interest, and penalties to which any of the Indemnified Parties shall be
entitled to indemnification.

                  8.5  Indemnification of the Stockholders and the Company.  The
Investors  agree,  on a joint and several basis,  to indemnify and hold harmless
the  Stockholders  and the Company and each officer,  director,  stockholder  or
affiliate of the Company,  from and against any Indemnifiable  Costs arising out
of (A) any misrepresentation, breach or default by the Investors of or under any
of the  covenants,  agreements  or other  provisions  of this  Agreement  or any
agreement or document executed in connection  herewith and (B) any tortious acts
or omissions by the Investors or the Company after the Closing. In addition, the
Company and the Investors  shall indemnify the  Stockholders  for any payment by
the Stockholders of the Company's obligations occurring after the Closing Date.

                  8.6  Limits on  Indemnification.  Except  for any  claims  for
breach of the  representations and warranties of the Stockholders under Sections
3.1, 3.2, 3.3, 3.17 or 3.29 hereof (the  indemnification  for which shall expire
on the expiration of the applicable statute of limitations), the indemnification
provided  under this  Article  VIII shall  expire  twelve  (12)  months from the
Closing  Date.  The  Stockholders  shall not be obligated to pay any amounts for
indemnification  under this  Article  VIII until the  aggregate  indemnification
obligation  hereunder exceeds $50,000,  whereupon the Stockholders shall only be
liable for all amounts in excess of such $50,000 for which  indemnification  may
be sought. Notwithstanding the foregoing, in no event shall any Stockholder have
any  liability  to the  Investors  in excess of their  allocable  portion of ten
percent (10%) (i.e.,  allocated 7.0379% to the Cerberonics Parties and 2.963% to
Manoogian) of the sum of (i) the Redemption  Price,  as adjusted by Sections 2.8
and 2.11,  and (ii) the Stock  Purchase  Price,  as adjusted by Sections 2.8 and
2.11  (except  for  claims  made  for  any  breach  of the  representations  and
warranties  of the  Stockholders  under  Sections  3.1,  3.2,  3.3, 3.17 or 3.29
hereof,  for  which  no such  limitation  on the  Stockholders'  indemnification
obligations shall apply). In addition, (i) the Cerberonics Parties shall only be
liable for breaches of the representations and warranties  contained in Sections
3.8  through  3.20,  3.23,  3.24,  3.25,  3.27 and 3.28 to the  extent it or the
Eriksons had actual knowledge of such breach, (ii) the Cerberonics Parties shall
only be liable for breaches of the representations  and warranties  contained in
Section 3.29 to the extent such breach relates to the  Cerberonics  Shares,  and
(iii)  Manoogian  shall only be liable for breaches of the  representations  and
warranties  contained in Section  3.29 to the extent such breach  relates to the
Manoogian Shares and shall have no liability for breaches of the representations
and  warranties  made by the  Cerberonics  Parties under Section 3.30.  However,
nothing in this Article VIII shall limit the  Investors in any way in exercising
or securing any remedies  provided by applicable  common law with respect to the
conduct of the  Stockholders  in connection with this Agreement or in the amount
of  damages  that it can  recover  from the  Stockholders  in the event that the
Investors successfully prove intentional fraud or intentional fraudulent conduct
in connection with this Agreement.






                                       29

<PAGE>



                                   ARTICLE IX
                                   TERMINATION

                  9.1 Termination.  This Agreement may be terminated at any time
prior to the Closing:

                           (a) Mutual  Consent.  Upon the mutual written consent
of all parties hereto;

                           (b) Litigation.  By either Stockholder or the Company
or the  Investors  if an  injunction  or other order shall have been issued by a
court or  administrative  body of competent  jurisdiction,  or  litigation  or a
governmental proceeding shall be pending or threatened, which restrains or seeks
to  restrain  or  otherwise   would  make  unlawful  the   consummation  of  the
transactions contemplated by this Agreement;

                           (c) Conditions to the Investors' Obligations.  By the
Investors if any of the conditions provided in Section 7.1 hereof shall not have
been satisfied,  complied with or performed in any material respect on or before
the Closing Date and the Investors shall not have waived in writing such failure
of satisfaction, non-compliance or non-performance;

                           (d) Conditions to the Stockholders' and the Company's
Obligations.  By the  Stockholders  and  the  Company  if any of the  conditions
provided in Section 7.2 hereof shall not have been  satisfied,  complied with or
performed  in any  material  respect  on or before  the  Closing  Date,  and the
Stockholders   have  not  waived  in  writing  such  failure  of   satisfaction,
non-compliance or non-performance;

                           (e) Alternative Transaction. By Cerbco if (i) Cerbco,
the Stockholders and/or the Company is (or are) prepared to enter into a binding
definitive agreement to effect an Alternative Transaction; and (ii) the Company,
the  Stockholders  and/or Cerbco has (or have) given the Investors at least five
(5)  business  days'  notice of their  intention  to  terminate  this  Agreement
pursuant to this Section 9.1(e) (which notice shall include a description of all
relevant terms and  conditions of such  Alternative  Transaction),  during which
period   Investors  shall  have  the   opportunity  to  propose   amendments  or
modifications to the terms of the Redemption and the Stock Purchase;

                           (f)  Withdrawal  of  Cerbco  Board  Approval.  By the
Investors if the Cerbco board of directors  shall have amended or withdrawn  any
such  recommendation and such recommendation is not reinstated in its prior form
within five (5) business days after such amendment or withdrawal other than as a
result of the events described in paragraphs (g) or (h) below;

                           (g)  Lack  of  Favorable  Fairness  Opinion.  By  the
Investors  or Cerbco if the  Cerbco  board of  directors  shall  have  failed to
recommend adoption of the Redemption Proposal at the time the Proxy Statement is
first mailed to Cerbco's  stockholders  and such failure is due to Cerbco having
obtained, pursuant to Section 5.2, a fairness opinion that is not favorable; or

                           (h)   Rejection  by  Cerbco   Stockholders.   By  the
Investors or Cerbco if the  stockholders  of Cerbco shall have failed to approve
the Transaction at meetings duly convened therefore in accordance with the terms
of Sections 5.2 and 7.1(i).

                  9.2 Effect of Termination.  Termination of this Agreement by a
party pursuant to this Article IX shall not of itself result in any liability on
such  party  or his  or its  respective  representatives,  directors,  officers,
stockholders or agents.  In the event of termination of this Agreement,  nothing
contained in this  Section 9.2 shall  relieve any party from  liability  for any
breach of this Agreement.

                  9.3 Fees and  Expenses.  If (i) the Investors  terminate  this
Agreement at any time under  circumstances  where the  provisions  of and events
described by Section 9.1(a), (b), (c), (f), (g) or (h) are not




                                       30

<PAGE>



applicable, or (ii) the Investors fail to consummate the Transactions through no
fault of the  Stockholders or the Company,  and the Company and the Stockholders
have  otherwise  satisfied all conditions  precedent  applicable to such parties
under Section 7.1, then the Investors shall, jointly and severally, promptly pay
the Stockholders  (19/27ths to Cerberonics and 8/27ths to Manoogian) a fee equal
to $1,000,000  (subject,  however,  to the operation of Section 7.1(a)). If this
Agreement is terminated pursuant to Section 9.1(e) or (f), Cerbco shall promptly
pay  Investors  a fee  equal to  $1,000,000.  If this  Agreement  is  terminated
pursuant to Section  9.1(g) or (h),  Cerbco shall  promptly pay  Investors a fee
equal to (i) $250,000 in same day funds (such amount being a reasonable estimate
of the Investors  costs and expenses) and (ii) if an Alternative  Transaction is
consummated  within  one (1) year  following  such  termination,  an  additional
$750,000 shall be payable by Cerbco to the Investors upon such  consummation  of
the Alternative  Transaction.  Any such fees shall be paid in same day funds and
in no event later than one business day after  termination of this Agreement and
shall bear interest on such amount from the date payable until paid at a rate of
eight percent (8%) per annum.  Notwithstanding  anything to the contrary in this
Article IX, any termination by either party under Sections  9.1(e),  (f), (g) or
(h)  shall  not be  effective  until  Investors  have  received  payment  of the
$1,000,000  fee payable  pursuant to the second  sentence of this Section 9.3 in
the case of a  termination  under  Sections  9.1(e) or (f), or the  $250,000 fee
payable  pursuant to clause (i) of the third sentence of this Section 9.3 in the
case of a termination under Section 9.1(g) or (h).


                                    ARTICLE X
                                  MISCELLANEOUS

                  10.1 Modifications.  Any amendment,  change or modification of
this Agreement shall be void unless in writing and signed by all parties hereto.
No  failure  or delay by any party  hereto in  exercising  any  right,  power or
privilege  hereunder  (and no  course  of  dealing  between  or among any of the
parties)  shall operate as a waiver of any such right,  power or  privilege.  No
waiver of any  default  on any one  occasion  shall  constitute  a waiver of any
subsequent or other  default.  No single or partial  exercise of any such right,
power or privilege shall preclude the further or full exercise thereof.

                  10.2 Notices. All notices and other  communications  hereunder
shall be in writing and shall be deemed to have been duly given when  personally
delivered,  or 48 hours after deposited in the United States mail,  first-class,
postage prepaid,  or by facsimile  addressed to the respective parties hereto as
follows:

                           The Investors:

                           c/o Golder, Thoma, Cressey, Rauner, Inc.
                           233 S. Wacker Drive, 61st Floor
                           6100 Sears Tower
                           Chicago, IL  60606-6402
                           Attention:       Will Kessinger
                           Tel No.:         (312) 382-2219
                           Fax No.:         (312) 382-2201





                                       31

<PAGE>



                           With a copy to:

                           Davis, Graham & Stubbs LLP
                           1314 Nineteenth Street, N.W.
                           Washington, D.C.  20036
                           Attention:       J. Hovey Kemp or
                                            Karen Renfree Clark
                           Tel No.:         (202) 822-1029 or 1055
                           Fax No.:         (202) 293-4794

                           The Company:

                           Capitol Office Solutions, Inc.
                           f/k/a Capitol Copy Products, Inc.
                           12000 Old Baltimore Pike
                           Beltsville, Maryland  20705
                           Attention:       Mr. Armen Manoogian, President
                           Tel No.:         (301) 937-5030
                           Fax No.:         (301) 937-6031

                           With a copy to:

                           Reichelt, Nussbaum, LaPlaca & Miller
                           7500 Century Center Drive
                           Suite 1000
                           Greenbelt, Maryland  20770
                           Attention:       Raymond G. LaPlaca
                           Tel No.:         (301) 474-9000
                           Fax No.:         (301) 345-0565

                           Stockholders:

                           Cerberonics

                           Cerberonics, Inc.
                           300 Delaware Avenue
                           Suite 1704
                           Wilmington, Delaware  19801
                           Attention:       President
                           Tel No.:         (302) 427-7876
                           Fax No.:         (302) 427-9560

                           With a copy to:

                           McGuire, Woods, Battle & Boothe, L.L.P.
                           8280 Greensboro Drive, Suite 900
                           Tysons Corner, Virginia  22102
                           Attention:       Christopher L. Keefer
                           Tel No.:         (703) 712-5000
                           Fax No.:         (703) 712-5050





                                       32

<PAGE>



                           Manoogian:

                           Armen Manoogian
                           c/o Capitol Office Solutions, Inc.
                           12000 Old Baltimore Pike
                           Beltsville, Maryland  20705
                           Tel No.:         (301) 937-5030
                           Fax No.:         (301) 937-6031

                           With a copy to:

                           Arent Fox Kintner Plotkin & Kahn
                           Washington Square
                           1050 Connecticut Avenue, N.W.
                           Washington, DC  20036-5339
                           Attention:       Arnold R. Westerman
                           Tel No.:         (202) 857-6243
                           Fax No.:         (202) 857-6395

                           Cerbco:

                           CERBCO, Inc.
                           3421 Pennsy Drive
                           Landover, Maryland  20785
                           Attention:       George Wm. Erikson
                                            Robert W. Erikson
                           Tel No.:         (301) 386-7400
                           Fax No.:         (301) 322-3041


or to such other address as to any party hereto as such party shall designate by
like notice to the other parties hereto.

                  10.3 Counterparts;  Facsimile Transmission. This Agreement may
be executed in several  counterparts,  each of which shall be deemed an original
but all of which counterparts collectively shall constitute one instrument,  and
in making  proof of this  Agreement,  it shall never be  necessary to produce or
account for more than one such counterpart. Signatures sent to the other parties
by  facsimile  transmission  shall be binding as evidence of  acceptance  of the
terms hereof by such signatory party.

                  10.4 Expenses. Each of the parties hereto will bear all costs,
charges and expenses  incurred by such party in connection  with this  Agreement
and the consummation of the transactions contemplated herein, provided, however,
that (i) the  Stockholders  shall bear all costs and  expenses of (A) any broker
involved in this transaction and (B) all legal expenses of the Stockholders with
respect to this Agreement and the transactions contemplated hereby; and (ii) the
Company  (post-Closing) shall reimburse Manoogian for his reasonable legal costs
and expenses in connection  with the  negotiation of any Ancillary  Agreement to
which he is a party.

                  10.5  Binding  Effect;  Assignment.  This  Agreement  shall be
binding  upon and inure to the  benefit of the  Investors,  the  Company and the
Stockholders,  their heirs, representatives,  successors, and permitted assigns,
in accordance  with the terms hereof.  This Agreement shall not be assignable by
the




                                       33

<PAGE>



Stockholders without the prior written consent of the Investors.  This Agreement
shall  be  assignable  by the  Investors  to a  wholly-owned  subsidiary  of the
Investors without the prior written consent of the Stockholders.

                  10.6 Entire and Sole  Agreement.  This Agreement and the other
schedules and agreements  referred to herein,  constitute  the entire  agreement
between the parties hereto and supersede all prior agreements,  representations,
warranties, statements, promises, information,  arrangements and understandings,
whether oral or written,  express or implied, with respect to the subject matter
hereof.

                  10.7   Governing   Law.  This   Agreement  and  its  validity,
construction,   enforcement,   and  interpretation  shall  be  governed  by  the
substantive laws of the State of Delaware.

                  10.8 Survival of  Representations,  Warranties  and Covenants.
Regardless  of any  investigation  at any time made by or on behalf of any party
hereto  or of any  information  any  party  may  have in  respect  thereof,  all
covenants,   agreements,   representations,   and  warranties  and  the  related
indemnities  made  hereunder  or  pursuant  hereto  or in  connection  with  the
transactions  contemplated  hereby shall survive the Closing for a period of one
(1) year, provided (a) the  representations and warranties  contained in Section
3.17 of this Agreement,  and the related indemnities,  shall survive the Closing
until the expiration of the applicable  statutes of limitations  for determining
or  contesting  Tax  liabilities  and (b)  the  representations  and  warranties
contained in Sections 3.1, 3.2, 3.3 and 3.29 of this Agreement,  and the related
indemnities, shall survive the Closing indefinitely.

                  10.9 Invalid Provisions. If any provision of this Agreement is
deemed or held to be illegal, invalid or unenforceable,  this Agreement shall be
considered  divisible and  inoperative  as to such provision to the extent it is
deemed to be illegal,  invalid or unenforceable,  and in all other respects this
Agreement shall remain in full force and effect; provided,  however, that if any
provision  of  this  Agreement  is  deemed  or held to be  illegal,  invalid  or
unenforceable  there shall be added hereto  automatically a provision as similar
as possible to such illegal,  invalid or  unenforceable  provision and be legal,
valid and enforceable. Further, should any provision contained in this Agreement
ever be reformed or rewritten by any  judicial  body of competent  jurisdiction,
such  provision  as so reformed or  rewritten  shall be binding upon all parties
hereto.

                  10.10  Public  Announcements.  Neither  party  shall  make any
public  announcement of the transactions  contemplated  hereby without the prior
written  consent of the other party,  which  consent  shall not be  unreasonably
withheld,  unless such disclosure is required, on advice of counsel, in order to
comply with federal  securities  laws or the listing  requirements  of NASDAQ or
another national stock exchange.

                  10.11 Remedies  Cumulative.  The remedies of the parties under
this  Agreement are cumulative and shall not exclude any other remedies to which
any party may be lawfully entitled.

                  10.12 Waiver.  No failure or delay on the part of any party in
exercising  any  right,  power,  or  privilege  hereunder  or  under  any of the
documents  delivered in connection with this Agreement shall operate as a waiver
of such right, power, or privilege;  nor shall any single or partial exercise of
any such right,  power,  or  privilege  preclude  any other or further  exercise
thereof or the exercise of any other right, power, or privilege.

                  10.13 Further Assurances. From time to time after the Closing,
at the request of the Investors but without further  consideration,  the Company
and the  Stockholders  will  execute  and  deliver  such  other  instruments  of
conveyance, assignment, transfer, and delivery and take such other action as the
Investors  reasonably  may  request  in order  to  consummate  the  transactions
contemplated hereby.

                  10.14  Headings.  The  descriptive  section  headings  are for
convenience  of  reference  only and shall not  control or affect the meaning or
construction of any provision of this Agreement.





                                       34

<PAGE>



                  10.15 Joinder by Additional Investors. During the term of this
Agreement,  to the extent  Schedule 1 is updated to the effect  that  additional
Investors will join GTCR IV as Investors hereunder, GTCR IV shall cause all such
Persons to become  parties  hereto,  without  the  consent of the Company or the
Stockholders, by execution and delivery of a counterpart of this Agreement










                      [THIS SPACE INTENTIONALLY LEFT BLANK]




                                       35

<PAGE>



                  IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be duly executed as of the date and year first above written.

                                            THE COMPANY:

                                            CAPITOL OFFICE SOLUTIONS, INC.
                                            (f/k/a Capitol Copy Products, Inc.)



                                            By:
                                                     Armen A. Manoogian
                                                     President


                                            STOCKHOLDERS:

                                            CERBERONICS:

                                            CERBERONICS, INC.



                                            By:
                                                     Name:
                                                     Title:


                                            MANOOGIAN:




                                            Armen A. Manoogian


                                            CERBCO:

                                            CERBCO, INC.



                                            By:
                                                     Name:
                                                     Title:







                                       36

<PAGE>



                  INVESTORS:

                  GOLDER, THOMA, CRESSEY, RAUNER FUND IV, L.P.

                  By:      GTCR IV, L.P.,
                           General Partner

                  By:      Golder, Thoma, Cressey, Rauner, Inc.,
                           General Partner



                  By:
                           Carl D. Thoma
                           Principal




                           Name:
                           Title:




                           Name:
                           Title:




                           Name:
                           Title:




                           Name:
                           Title:




                           Name:
                           Title:





                                       37

<PAGE>



EXHIBIT B

                                ESCROW AGREEMENT


                  THIS ESCROW AGREEMENT (this  "Agreement") dated this _____ day
of  _____________,  1997, is entered into by and among GOLDER,  THOMA,  CRESSEY,
RAUNER FUND IV, L.P., a Delaware limited partnership ("GTCR"), and certain other
investors as are signatory hereto (collectively, GTCR and the
other  investors  are  referred  to herein  as the  "Investors"),  (the  "Escrow
Agent"), CAPITOL OFFICE SOLUTIONS,  INC. (f/k/a Capitol Copy Products,  Inc.), a
Delaware  corporation  (the  "Company"),  CERBCO,  INC., a Delaware  corporation
("Cerbco"),  and  CERBERONICS,  INC.,  a  Delaware  corporation  ("Cerberonics;"
collectively,  Cerberonics and Cerbco are referred to herein as the "Cerberonics
Parties"), and ARMEN A. MANOOGIAN ("Manoogian")  (collectively,  the Cerberonics
Parties and Manoogian are referred to herein as the "Stockholders").


                                    Recitals

                  A.  The  Company,  the  Investors  and the  Stockholders  have
entered into an Investment,  Redemption and Stock Purchase Agreement dated as of
February __, 1997 (the "Investment and Redemption Agreement").

                  B. Pursuant to the Investment and  Redemption  Agreement,  (i)
the  Cerberonics  Parties have agreed to sell to the Company and the Company has
agreed to purchase from the Cerberonics  Parties all the shares of the Company's
capital stock held by Cerberonics  (the  "Redemption") in exchange for the price
set  forth in  Section  2.3 of the  Investment  and  Redemption  Agreement  (the
"Redemption  Price");  (ii) GTCR has agreed to purchase from the Company and the
Company has agreed to sell to GTCR 49.5 shares of the  Company's  Class A Common
Stock and .5 shares of the  Company's  Class C Common Stock (the  "Investment");
and (iii)  Manoogian has agreed to sell to the Investors and the Investors  have
agreed to purchase from  Manoogian  all of the shares of the  Company's  Class A
Common Stock held by him and 62.5% of the Company's Class C Common Stock held by
him (the "Stock Purchase") in exchange for the price set forth in Section 2.5 of
the Investment and Redemption Agreement (the "Stock Purchase Price").

                  C. This Escrow  Agreement  is entered  into for the purpose of
securing and providing a first,  but  non-exclusive  source for  satisfying  any
amount that is required to be paid by the Stockholders  jointly or separately to
the  Investors,  the  Company  and/or  any of the  Indemnified  Parties  for the
purposes  and in the manner  described  in Section 2.7 and  Article  VIII of the
Investment and Redemption Agreement.

                  D.  Obligations for amounts due to the Investors,  the Company
and/or any Indemnified Parties under the Investment and Redemption Agreement are
in most instances mutual to both the Cerberonics Parties and Manoogian, however,
there are certain limitations on the Stockholders'  indemnification  obligations
provided for in Section 8.6 of the Investment and Redemption Agreement, and this
Agreement allocates certain  responsibilities  among the Cerberonics Parties and
Manoogian according to such limitations.


                                    Agreement

                  NOW, THEREFORE,  in consideration of the premises, the parties
do hereby agree as follows:

                  a.       Deposit of Cash and Securities.

                           (a)  Concurrent  with  the  closing  contemplated  by
Section 2.13 of the  Investment and  Redemption  Agreement,  the Company and the
Investors  shall cause to be deposited with the Escrow Agent, in accordance with
the  following  sentence,  the sum of  $1,500,000  (the  "Escrow  Sum")  for the
purposes  intended in Section 2.7 and Article VIII thereof.  Pursuant to Section
2.7 of the Investment and Redemption Agreement,  (i) an amount equal to 19/27ths
of the Escrow Sum shall be deducted from the Redemption Price and deposited with
the  Escrow  Agent as the  Cerberonics  Parties'  share of the Escrow Sum (i.e.,
$1,055,556)




                                        1

<PAGE>



(the "Cerbco Escrow  Account"),  and (ii) the following  shall be deposited with
the Escrow Agent as Manoogian's share of the Escrow Sum (i.e., $444,444), (A) an
amount of cash equal to 5/27ths of the Escrow Sum (i.e., $277,778),  which shall
be deducted from the Stock  Purchase Price (the "Cash  Component")  and (B) 8.33
shares of the  Company's  Class B Common Stock (which have a  liquidation  value
equal to 3/27ths of the Escrow Sum or  $166,667)  (the  "Securities  Component;"
collectively,  the  amounts  set forth in  clauses  (A) and (B)  above  shall be
referred to herein as the  "Manoogian  Escrow  Account").  The Escrow Agent will
keep  accounting  records  which  segregate  the  Escrow  Sum into two  separate
accounts, the Cerbco Escrow Account and the Manoogian Escrow Account.

                           (b) The  Escrow Sum is to be  retained  by the Escrow
Agent pursuant to this  Agreement,  and the Escrow Sum and income thereon may be
disbursed by the Escrow Agent only in accordance with this Agreement.

                           (c)  Manoogian  will  retain  the  right  to vote the
shares of Class B Common Stock deposited in the Securities Component.

                  b.       Investment of the Escrow Sum.

                           (1) The portion of the Escrow Sum which is  comprised
of cash  shall be  invested  by the  Escrow  Agent at the  direction  of all the
Stockholders in:

                                (i) U.S.  Treasury bills having maturities of 90
days or less; or

                                (ii)   U.S.    Government    Securities   having
maturities of one year or less; or

                                (iii)   Certificates  of  Deposit  issued  by  a
national or state bank that is a member of the FDIC and has over $100 million of
capital and surplus,  or commercial  paper having a maturity of 120 days or less
and an A-1/P-1 or comparable rating; or

                                (iv) Other  marketable  debt  securities  at the
joint written direction of the Investors and the Stockholders; or

                                (v) A money market fund backed by the full faith
and credit of the U.S. Government consisting of securities with a maturity of 90
days or less,  and  providing  for funds  available on 24 hours  advance  notice
except in the event the Federal Reserve Bank is closed.

                           (2) Portions of the Escrow Sum not so invested may be
kept in cash  pending such  investment.  The portions of the Escrow Sum invested
under (i), (ii) and (iii) above or held as cash shall be valued for all purposes
under this Agreement at "face value." All other portions of the Escrow Sum shall
be valued as  mutually  agreed upon by the  Stockholders  and the  Investors  in
writing at the time such  parties  give their  consent  to the  investment.  All
assets  held  under  this  Agreement  shall be  registered  in the  names of any
nominees selected by the Escrow Agent.

                  c.       Duties of the Escrow Agent

                           (1) The Escrow Agent shall  receive,  hold and invest
the Escrow Sum pursuant to the terms of this  Agreement.  Except as  hereinafter
provided,  on            ,  1998 (the first anniversary of the Closing Date), or
as  soon  thereafter  as  possible,  the  Escrow  Agent  shall  deliver  to  the
Stockholders,  or to their order,  all  remaining  portions of their  respective
escrow  accounts then held by the Escrow Agent in excess of the amounts (if any)
reserved  against  Claims (as such term is  defined  pursuant  to  Section  3(b)
hereof). Pursuant to Section 8.6 of the Investment and Redemption Agreement, not
all  indemnification  obligations of the  Stockholders  under the Investment and
Redemption  Agreement are mutual.  Where the indemnification  obligations of the
Cerberonics  Parties and  Manoogian  are mutual  (e.g.,  where both  parties are
required to  indemnify  the Company or the  Investors,  as the case may be, as a
result of a breach of a  covenant  or a  representation  and  warranty  that the
Stockholders  collectively  made), the payment of such Claims shall be allocated
among  the  Stockholders  as  follows:  (i) the  Cerberonics  Parties  shall  be
responsible for 19/27ths (70.37037%) of such Claim and the Cerbco Escrow Account
shall be adjusted accordingly and (ii) Manoogian




                                        2

<PAGE>



shall be  responsible  for  8/27ths  (29.62963%)  of such Claim and,  subject to
Section 3(c) below, the Manoogian Escrow Account shall be adjusted  accordingly.
Where Manoogian has sole  indemnification  responsibility  for such Claim (e.g.,
where  there  was a  breach  of a  given  representation  and  warranty  but the
Cerberonics  Parties  are  found  to  be  excused  from  their   indemnification
obligation in connection  therewith  because they had no actual knowledge of the
matter  in  question,  as  per  Section  8.6 of the  Investment  and  Redemption
Agreement),  then Manoogian  shall be solely (100%)  responsible  therefor,  and
where the Cerberonics Parties have sole indemnification  responsibility for such
Claim (e.g., where there was a breach of a given representation and warranty but
Manoogian  is  found  to be  excused  from  his  indemnification  obligation  in
connection  therewith,  as per  Section  8.6 of the  Investment  and  Redemption
Agreement),  then the  Cerberonics  Parties shall be solely  (100%)  responsible
therefor.  (The relevant  percentage  allocation of  responsibility  for a Claim
(either  100%,  70.37037%  or 0% for the  Cerberonics  Parties and either  100%,
29.62963%  or 0% for  Manoogian)  shall be  referred  to herein as the  parties'
respective "Percentage Interests.")

                           (2) Upon  written  notice from the  Investors  to the
Escrow  Agent and the  Stockholders  jointly or  individually  (in the event the
claim is the sole  responsibility  of one  Stockholder) of any claim against the
Escrow Sum under  Section 2.11 of the  Investment  and  Redemption  Agreement or
under  Article  VIII of the  Investment  and  Redemption  Agreement  against the
Stockholders,  which notice sets forth a description of the facts upon which the
claim is based and the amount of the claim (a "Claim",  with the notice  thereof
referred to herein as the "Claim Notice"),  the Escrow Agent  immediately  shall
reserve an amount in the Escrow  Sum equal to the Claim  specified  in the Claim
Notice (the "Reserved Amount") and shall make the appropriate allocations to the
Cerbco Escrow  Account or, subject to Section 3(c) below,  the Manoogian  Escrow
Account;  provided,  however,  that if the Claim is based on an  indemnification
obligation which is solely the  responsibility  of one  Stockholder,  the Escrow
Agent  shall not  reserve  an amount  against  the  Escrow  Sum in excess of the
current unclaimed Escrow Sum allocable to such Stockholder's escrow account.

                           (3) Any  amounts  required  to be  deducted  from the
Manoogian  Escrow  Account in order to satisfy a Claim under the  Investment and
Redemption  Agreement  shall be deducted first from the Cash Component until the
Cash Component shall be reduced to zero, and then from the Securities Component.

                           (4) The  Investors  shall notify the Escrow Agent and
the  Stockholders  jointly or  individually  (in the event the Claim is the sole
responsibility  of one Stockholder) of a Claim by delivering a copy of the Claim
Notice to the Escrow Agent and both or one of the Stockholders,  as appropriate,
as  provided  in Section  6(f)  hereof.  In the event the  Stockholders  who are
potentially  responsible  for the Claim do not notify  the Escrow  Agent and the
Investors in writing of an  objection  to the Claim within  fifteen (15) days of
the mailing by the Investors of the Claim Notice, the Escrow Agent shall deliver
to the  Investors  from the  Escrow Sum the  Reserved  Amount and shall make all
necessary  adjustments  to the Cerbco Escrow  Account and the  Manoogian  Escrow
Account.

                           (5) In the event a Claim  Notice is  received  by the
Escrow Agent and the Escrow Agent receives a written objection to the Claim from
the  Stockholders who are potentially  responsible  therefor within fifteen (15)
days of the mailing by the Investors of the Claim Notice, the Escrow Agent shall
continue to hold the  Reserved  Amount  relating to that Claim  Notice  until it
either  (i)  receives  a joint  written  direction  from the  Investors  and the
responsible Stockholders with respect to the disposition of such Reserved Amount
of the Escrow Sum or (ii) until the Investors and the  responsible  Stockholders
have resolved the Claim.

                           (6) Any interest or other income earned by the Cerbco
Escrow Account and the Manoogian  Escrow Account,  net of any transaction  costs
associated with investment thereof, shall be paid to the Cerberonics Parties and
Manoogian,  respectively, at the termination of this Agreement to the extent not
paid to the Company or the  Investors,  as the case may be,  pursuant to a Claim
Notice.

                           (7) The Escrow Agent shall  provide the Investors and
the Stockholders  with quarterly reports of assets held and income earned by the
Escrow Sum  including an accounting of amounts of the total Escrow Sum allocated
to the Cerbco Escrow Account and to the Manoogian Escrow Account.

Notwithstanding  anything to the contrary above, it is the intent of the parties
that (i) with  respect to  payments  of the Escrow  Sum in  satisfaction  of the
Stockholders obligations under Section 2.11(a) of the Investment and




                                        3

<PAGE>



Redemption   Agreement,   such  payments  will  be  allocated  19/27ths  to  the
Cerberonics  Parties and 8/27ths to  Manoogian;  and (ii) with respect to Claims
that relate to the Stockholders'  indemnification obligations under Article VIII
of the  Investment  and Redemption  Agreement,  $444,444  (comprised of the Cash
Component and the Securities Component) of the original Escrow Sum shall be used
to fund  Claims made by the  Company or the  Investors,  as the case may be, for
which  Manoogian is responsible  and $1,055,556 of the original Escrow Sum shall
be used to fund  Claims  made by the  Investors  or the  Company  for  which the
Cerberonics Parties are responsible,  such that the Cerbco Escrow Account cannot
be used to fund  Claims  for  which  Manoogian  is solely  responsible,  and the
Manoogian Escrow Account cannot be used to fund Claims for which the Cerberonics
Parties is solely responsible.

                  d.   Resolution   of  Disputes.   All  disputes   between  the
Stockholders  (or  either of them) and the  Investors  with  respect  to (a) the
Escrow Sum, (b) the payment of Escrow Sum amounts  pursuant to Section 3 hereof,
(c) the allowance or disallowance of a Claim, or (d) the terms of this Agreement
or the rights and obligations of the Stockholders  and the Investors  hereunder,
which  cannot be  resolved  promptly  by mutual  agreement,  will be resolved by
binding  arbitration  in accordance  with the rules of the American  Arbitration
Association and in accordance with the Arbitration Procedures attached hereto as
Exhibit A.

                  e.       Operations.

                  The  Stockholders,  the Company and the Investors hereby agree
with the Escrow Agent that:

                           (1)  The  Escrow   Agent  shall  have  no  duties  or
responsibilities except as expressly provided for in this Agreement.

                           (2) The Escrow Agent shall not be responsible for the
identity,  authority or rights of any person,  firm or corporation  executing or
delivering or purporting to execute or deliver this Agreement or any document or
security deposited hereunder or any endorsement thereon or assignment thereof.

                           (3) The Escrow Agent shall not be responsible for the
sufficiency,  genuineness  or validity  of or title to any  document or security
deposited  or to be  deposited  with it  pursuant  to this  Agreement  or of any
endorsement thereon or assignment thereof.

                           (4) The Escrow Agent may rely upon any  instrument or
writing believed by it to be genuine and sufficient and properly presented,  and
shall not be liable or responsible for any action taken or omitted in accordance
with the provisions thereof.

                           (5)  The  Escrow   Agent   shall  not  be  liable  or
responsible  for any act it may do or omit to do in the  exercise of  reasonable
care.

                           (6) In case any  property  held by the  Escrow  Agent
hereunder  shall be  attached,  garnished  or levied upon under any order of any
court or the  delivery  thereof  shall be stayed or enjoined by any order of any
court,  or any other  order,  judgment or decree shall be made or entered by any
court  affecting  such  property  or any part  thereof or any acts of the Escrow
Agent, the Escrow Agent is hereby authorized,  in its exclusive  discretion,  to
obey and comply  with all  writs,  orders,  judgments,  or decrees so entered or
issued, whether with or without jurisdiction, and, if the Escrow Agent obeys and
complies with any such writ,  order,  judgment or decree, it shall not be liable
to  any  of  the   parties   hereto,   their   successors,   heirs  or  personal
representatives or to any other person,  firm or corporation,  by reason of such
compliance,   notwithstanding  such  writ,  order,   judgment  or  decree  being
subsequently reversed, modified, annulled, set aside or vacated.

                           (7) The Escrow Agent shall be entitled to  reasonable
compensation  for its  services  and may  employ  agents and  attorneys  for the
reasonable protection of the property held hereunder.

                           (8) The Investors,  the Company and the  Stockholders
jointly and severally agree to indemnify and hold the Escrow Agent harmless from
any and all costs, expenses,  claims, losses, liabilities and damages (including
reasonable  attorneys'  fees)  that may arise out of or in  connection  with the
Escrow Agent's acting as Escrow Agent under the terms of this Escrow  Agreement,
except in those  instances  where  the  Escrow  Agent  has been  guilty of gross
negligence or willful misconduct.




                                        4

<PAGE>



                  f.       Miscellaneous.

                           (1) This Agreement shall be binding upon and inure to
the benefit of the parties hereto and their respective  successors and permitted
assigns,  and no other  persons  shall have any rights  herein.  No  transferee,
successor or assign of the  Stockholders  or the Investors shall have any rights
hereunder  until  each  notice  thereof  has been  given  and  evidence  of each
transfer, assignment or succession is provided to Escrow Agent.

                           (2) This  Agreement  may be executed  and endorsed in
one or more counterparts and each of such counterparts  shall, for all purposes,
be deemed to be an original, but all such counterparts shall together constitute
one and the same instrument.

                           (3) All fees and  expenses of the Escrow  Agent shall
be shared equally by the Stockholders, on the one hand, and the Investors on the
other hand,  except that any expenses of the Escrow Agent in connection with any
litigation  hereunder  shall be paid by the party obligated for the cost of such
litigation.

                           (4) A successor  Escrow Agent may be appointed at any
time by mutual agreement of the Stockholders and the Investors.

                           (5) The Escrow Agent agrees to hold the assets of the
Escrow Sum in two  segregated and separate  accounts,  the Cerbco Escrow Account
and the Manoogian Escrow Account, outside the reach of its general creditors.

                           (6) Any  notice,  statement  or  other  communication
which is required to be given,  including  Claim Notices,  hereunder shall be in
writing and shall be sufficient in all respects if delivered  personally,  or 48
hours after deposit in the United States mail, first-class,  postage prepaid, or
by facsimile addressed to the respective parties hereto as follows:


To the Investors:
GTCR IV                               cc:  Davis, Graham & Stubbs LLP
c/o Golder, Thoma, Cressey,                1314 Nineteenth Street, N.W.
  Rauner, Inc.                             Washington, DC  20036
233 S. Wacker Drive, 61st Floor            Attn:            J. Hovey Kemp
6100 Sears Tower                           Tel No.:         (202) 822-1029
Chicago, IL  60606-6402                    Fax No.:         (202) 293-2794
Attn:             Will Kessinger
Tel No.:          (312) 382-2219
Fax No.:          (312) 382-2201
To the Company:

Capitol Office Solutions, Inc.        cc:  Reichelt, Nussbaum, LaPlaca &
f/k/a Capitol Copy Products, Inc.          Miller
12000 Old Baltimore Pike                   7500 Century Center Drive
Beltsville, Maryland  20705                Suite 1000
Attention:        Mr. Armen Manoogian      Greenbelt, MD  20770
                  President                Attention:       Raymond G. LaPlaca
Tel No.:          (301) 937-5030           Tel No.:         (301) 474-9000
Fax No.:          (301) 937-6031           Fax No.:         (301) 345-0565





                                        5

<PAGE>




To the Stockholders:
CERBERONICS, Inc.                      cc:  McGuire, Woods, Battle &
- -------------------------------------       Boothe, L.L.P.
- -------------------------------------       8280 Greensboro Drive
- ------------------, Delaware  -------       Suite 900
Attn:       -------------------------       Tysons Corner, VA  22102
Tel No.:    -------------------------       Attn:            Chris Keefer
Fax No.:    -------------------------       Tel No.:         (703) 712-5339
                                            Fax No.:         (703) 712-5050

Armen Manoogian                        cc:  Arent Fox Kintner Plotkin &
c/o Capital Office Solutions, Inc.          Kahn
12000 Old Baltimore Pike                    Washington Square
Beltsville, MD  20705                       1050 Connecticut Avenue, NW
Tel No.:          (301) 937-5030            Washington, DC  20036-5339
Fax No.:          (301) 937-6031            Attn:            Arnold R. Westerman
                                            Tel No.:         (202) 857-6243
                                            Fax No.:         (202) 857-6395
To Cerbco:

CERBCO, Inc. or
3421 Pennsy Drive
Landover, MD  20785
Attn:             George Wm. Erikson
                  Robert W. Erikson
Tel No.:          (301) 386-7400
Fax No.:          (301) 322-3401

To Escrow Agent:
- --------------------------------------
- --------------------------------------
- --------------------------------------
- --------------------------------------


The address of a party may be changed from time to time by giving  notice in the
manner prescribed in this paragraph.  All such notices or communications will be
effective upon mailing, if mailed, and upon receipt, if personally delivered.

                           (7) The validity,  enforcement  and  construction  of
this Agreement shall be governed by the laws of the State of Delaware.

                           (8) Each of the parties  hereto  agrees to  cooperate
with the other parties hereto in effectuating  this Agreement and to execute and
deliver such further  documents or instruments  and to take such further actions
as shall be reasonably requested in connection therewith.

                           (9) If any one or more  provisions in this Agreement,
for any reason,  shall be determined to be invalid,  illegal or unenforceable in
any respect, the validity,  legality and enforceability of any such provision in
any other respect and the remaining provisions of this Agreement shall not be in
anyway impaired.

                           (10)  The   Escrow   Agent  may  resign  as  such  by
delivering  written  notice  to that  effect,  at  least  30 days  prior  to the
effective date of such resignation,  to the Investors and the Stockholders.  The
Investors and the Stockholders,  acting jointly,  may terminate the Escrow Agent
from its position as such




                                        6

<PAGE>



by delivering to the Escrow Agent written notice to that effect  executed by the
Investors and the  Stockholders  at least 30 days prior to the effective date of
such termination.  In the event of such resignation or termination of the Escrow
Agent, a successor Escrow Agent shall be appointed by mutual  agreement  between
the  Investors  and the  Stockholders.  From  and  after  the  appointment  of a
successor  Escrow Agent pursuant to this Section 6(j), all references  herein to
the Escrow Agent shall be deemed to be to such successor Escrow Agent.


                      [THIS SPACE INTENTIONALLY LEFT BLANK]




                                        7

<PAGE>



                  IN WITNESS  WHEREOF,  the parties  hereto have  executed  this
Escrow Agreement as of the day and year first above written.

ESCROW AGENT:                       INVESTOR:

- ----------------------------------  GOLDER, THOMA, CRESSEY, RAUNER
                                    FUND IV, L.P.

                                       By:      GTCR IV, L.P.,
By: ------------------------------              General Partner
    Name:-------------------------
    Title:------------------------     By:      Golder, Thoma, Cressey, 
                                                Rauner, Inc.,
                                                General Partner


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


                                    COMPANY:

                                    CAPITOL OFFICE SOLUTIONS, INC.



                                       By:-------------------------------------
                                          Armen A. Manoogian
                                          President and Chief Executive Officer


                                    STOCKHOLDERS:

                                    CERBERONICS:

                                    CERBERONICS, INC.



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


                                    MANOOGIAN:



                                    -------------------------------------------
                                    Armen A. Manoogian





                                        8

<PAGE>




                                     CERBCO:

                                     CERBCO, INC.



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





                                        9

<PAGE>



EXHIBIT C

                                VOTING AGREEMENT


         THIS VOTING AGREEMENT (this  "Agreement")  dated as of March 7, 1997 is
by and among  Robert W.  Erikson  and  George  Wm.  Erikson  (collectively,  the
"Eriksons" or the  "Stockholders"),  CERBCO,  Inc., a Delaware  corporation (the
"Company"),  CERBERONICS,  Inc.,  a  Delaware  corporation  and  a  wholly-owned
subsidiary of the Company  ("Cerberonics"),  Capitol Office  Solutions,  Inc., a
Delaware corporation  ("Capitol"),  and Golder, Thoma, Cressey,  Rauner Fund IV,
L.P., a Delaware  limited  partnership  ("GTCR IV"),  on behalf of itself and as
agent for the other investors (collectively,  with GTCR IV, the "Investors") who
are  listed in  Schedule  1 to and are  signatory  to the  Redemption  Agreement
referenced in Recital B below.


                                    Recitals


         P. The  Company,  through  Cerberonics,  owns  two-thirds  of the total
outstanding common stock of Capitol.  Armen A. Manoogian  ("Manoogian") owns the
remaining one-third of the outstanding common stock of Capitol.

         Q. Concurrently  herewith,  the Company,  Cerberonics and Manoogian are
entering  into an  Investment,  Redemption  and Stock  Purchase  Agreement  (the
"Redemption  Agreement")  with  Capitol,  GTCR IV and the other  Investors,  and
pursuant to which (i) the Investors are purchasing certain new shares of Capitol
common  stock  from  Capitol,  (ii) the  Investors  are  purchasing  certain  of
Manoogian's  shares of common  stock in Capitol,  and (iii) with the proceeds of
the purchase  referenced in clause (i) of this Recital B and certain  borrowings
to be made by Capitol,  Capitol is redeeming all of the shares of Capitol common
stock  owned  by  Cerberonics  (the  "Redemption").   (The  Redemption  and  the
transactions  described in clauses (i) and (ii) of this Recital B are  sometimes
collectively referred to herein as the "Transactions").

         R. Because the shareholdings in Capitol  constitute a substantial asset
of the Company, the Company,  Cerberonics,  Capitol, Manoogian and the Investors
deem it advisable in order to effect the Transactions that the Eriksons,  on the
one hand, and the Non-Erikson  stockholders  of the Company,  on the other hand,
each be provided the  opportunity to vote on the sale of the Company's  stake in
Capitol pursuant to the Redemption.  Accordingly, the Company's obligation under
the Redemption Agreement is effectively contingent upon, among other conditions,
the affirmative votes of (i) a majority of the votes cast by the stockholders of
the Company  other than the  Eriksons,  and (ii) a majority of the votes cast by
the Eriksons. In lieu of voting at a meeting of the stockholders of the Company,
approval of the  stockholders  of the  Company may be obtained by their  written
consents, equivalent in number to the required affirmative votes.

         S. As of the date hereof,  the Stockholders own (a) 115,056 shares,  or
approximately  9.9% of the total  outstanding  Common  Stock of the Company (the
"Common  Stock") and (b) 245,318  shares,  or  approximately  78.9% of the total
outstanding Class B Common Stock of the Company (the "Class B Stock"), exclusive
of 2,246  shares of Common  Stock  and  2,246  shares of Class B Stock  owned by
George Wm. Erikson jointly with his spouse (the "GWE Joint Shares") (such shares
(again, exclusive of the GWE Joint Shares) and any other shares of the Company's
capital stock acquired by the  Stockholders  subsequent to the date hereof being
herein referred to collectively as the "Shares") and desire to (i) agree to vote
any and all Shares in favor of the Redemption (subject to the proxy described in
clause  (i) of  Section 2 and the  conditions  set forth in  Section 3) and (ii)
grant to GTCR IV an irrevocable proxy covering the Shares.

         T. The  Investors  have  required as a condition  to entering  into the
Redemption  Agreement that the Stockholders  enter into this Agreement,  and the
Company,  Cerberonics,  and Capitol desire that the Stockholders enter into this
Agreement. The Company,  Cerberonics,  Capitol and the Investors will enter into
the   Redemption   Agreement   in  part  in   reliance   on  the   Stockholders'
representations, warranties and agreements under this Agreement.






                                        1

<PAGE>



                                    Agreement

         In consideration  of the mutual  covenants and agreements  contained in
this  Agreement and other good and valuable  consideration,  and intending to be
legally bound hereby, it is agreed as follows:

         1. Agreement to Support Redemption.  The Stockholders agree, subject to
the terms and  conditions of Section 3, to vote any Shares held by them in favor
of the Redemption pursuant to the terms of Redemption Agreement. In addition, if
subsequent to the date hereof the  Stockholders  are entitled to vote the Shares
on any Designated  Matters (as defined in Section 2 below),  they shall take all
actions necessary to vote the Shares pursuant to instructions received from GTCR
IV.

         2. Limited Proxy With Respect to the Shares.  The  Stockholders  hereby
irrevocably  appoint  GTCR IV as their  attorney  and proxy,  with full power of
substitution, to vote or to express written consent or dissent in such manner as
such attorney and proxy or its substitute  shall, in its sole  discretion,  deem
proper, and otherwise act (including pursuant to any corporate action in writing
without a meeting)  with respect to all of the Shares which they are entitled to
vote at any meeting of  stockholders  (whether  annual or special and whether or
not an adjourned meeting) of the Company, or pursuant to a written consent taken
in  lieu  of  any  such  meeting  or  otherwise;  provided,  however,  that  the
Stockholders  grant a proxy  hereunder  limited to and only with  respect to the
following matters (the "Designated Matters"): (i) votes or consents with respect
to the  Redemption;  (ii)  votes or  consents  with  respect  to any  action  or
agreement  that  would  result in a breach of any  covenant,  representation  or
warranty  or any  other  obligation  or  agreement  of  the  Company  under  the
Redemption  Agreement;  (iii)  votes or consents  with  respect to any action or
agreement involving Capitol that would impede,  interfere with, delay,  postpone
or attempt to  discourage  the  Redemption,  including,  but not limited to, any
extraordinary   corporate   transaction  (other  than  as  contemplated  by  the
Redemption Agreement), such as a merger, other business combination, the sale of
material assets,  reorganization or liquidation  involving Capitol. This limited
proxy is irrevocable,  is coupled with an interest  sufficient in law to support
an irrevocable  proxy and is granted in consideration of and as an inducement to
cause Capitol and Investors to enter into the transactions  contemplated by this
Agreement and the Redemption Agreement.  With respect to the Designated Matters,
this limited proxy shall revoke any other proxy granted by  Stockholders  at any
time with  respect to the Shares and no  subsequent  proxies  will be given with
respect thereto by Stockholders.

         3.       Condition to the Stockholders' Obligations.

                  (a)  The  Stockholders'   obligations  under  this  Agreement,
including without  limitation Section 1 (with respect to their voting the Shares
in favor of the Redemption  pursuant to the Redemption  Agreement) and Section 2
(with respect to their granting a proxy to GTCR IV) are conditioned upon (i) the
Company's Board of Directors,  prior to the closing of the Redemption  Agreement
not having either (x) exercised its fiduciary duties and withdrawn,  modified or
amended  in  a  manner  adverse  to  Capitol  or  Investors,  its  approval  and
recommendation of the Redemption and the Redemption  Agreement,  or (y) approved
or  recommended  any  transaction  relating to the  acquisition  of Capitol or a
substantial  portion of its assets other than pursuant to the Redemption and the
Redemption  Agreement,  and (ii) the  Redemption  and the  Redemption  Agreement
having been approved by the  affirmative  vote of a majority of the votes of the
other holders of the Company's  capital stock (i.e.,  votes other than the votes
of  the  Stockholders),  that  vote  thereon  at  a  meeting  of  the  Company's
stockholders.

                  (b) The  obligations  of the  parties  to  perform  under this
Agreement upon its execution and  thereafter  shall be subject to the additional
condition that there shall be no  preliminary  or permanent  injunction or other
order issued by any court of competent  jurisdiction  in effect which  prohibits
(i) this  Agreement  or (ii)  the  Redemption.  The  Stockholders,  Capitol  and
Investors  agree not to seek any such  injunction  or order and agree  that they
will oppose and will seek the immediate lifting of any such injunction or order.

                  (c) The  representations,  warranties and agreements of Robert
W. Eriksons under this Agreement are qualified and conditioned upon the terms of
the  brokerage  margin  agreements  relating  to certain of his shares of Common
Stock identified in Schedule 3(c) attached hereto.

         4. Representations and Warranties of the Stockholders. The Stockholders
represent and warrant to the Company, Cerberonics,  Capitol and the Investors as
follows:




                                        2

<PAGE>



                  (a)  Ownership of Shares.  On the date hereof,  other than the
GWE Joint  Shares,  the Shares are all of the shares of Common Stock and Class B
Stock currently owned by the Stockholders beneficially and of record. Other than
pursuant to  outstanding  options  described in the Company's  most recent proxy
statement,  the  Stockholders  do not have any rights to acquire any  additional
shares of Common Stock or Class B Stock. The Stockholders currently have, and at
the closing of the Redemption will have, good, valid and marketable title to the
Shares,  free  and  clear of all  liens,  encumbrances,  restrictions,  options,
warrants,  rights  to  purchase  and  claims  of  every  kind  (other  than  the
encumbrances  created by this Agreement and the margin agreements  identified on
Schedule 3(c) hereto and other than  restrictions  on transfer under  applicable
Federal and State securities laws).

                  (b) Power;  Binding Agreement.  The Stockholders have the full
legal  right,  power  and  authority  to  enter  into  and  perform  all  of the
Stockholders'  obligations  under this Agreement.  The execution and delivery of
this Agreement by the Stockholders will not violate any other agreement to which
the  Stockholders  are  a  party  including,   without  limitation,  any  voting
agreement,  stockholders  agreement,  voting trust or proxy.  This Agreement has
been duly executed and delivered by the  Stockholders  and  constitutes a legal,
valid and binding agreement of the Stockholders,  enforceable in accordance with
its terms,  except as the  enforcement  thereof  may be  limited by  bankruptcy,
insolvency,  reorganization,  moratorium  and similar laws,  now or hereafter in
effect affecting  creditors' rights and remedies generally or general principles
of  equity.  Neither  the  execution  or  delivery  of  this  Agreement  nor the
consummation by the  Stockholders of the transactions  contemplated  hereby will
(i) except as disclosed  on Schedule  4(b) require any consent or approval of or
filing with any  governmental or other  regulatory body except for filings under
the Securities  Exchange Act of 1934, as amended, or (ii) constitute a violation
of,  conflict with or  constitute a default  under,  any  contract,  commitment,
agreement, understanding,  arrangement or other restriction of any kind to which
the Stockholders are a party or by which either Stockholder is bound.

         5. Termination.  This Agreement (other than the provisions  relating to
expenses and indemnification  (Section 6) and confidentiality (Section 7)) shall
terminate on the earliest of the following to occur:

                  (a) the date on which the Company,  Capitol, the Investors and
the Stockholders mutually consent to terminate this Agreement in writing;

                  (b) the date of consummation of the Redemption pursuant to the
Redemption Agreement;

                  (c) prior to the successful  consummation  of the  Redemption,
the termination of the Redemption Agreement pursuant to its terms;

                  (d) prior to the successful  consummation  of the  Redemption,
the  withdrawal,  modification or amendment by the Company's Board of Directors,
in a  manner  adverse  to  Capitol  and  the  Investors,  of  its  approval  and
recommendation of the Redemption and the Redemption Agreement;

                  (e) prior to the successful  consummation  of the  Redemption,
the  approval or  recommendation  by the  Company's  Board of  Directors  of any
transaction  relating to the  acquisition of Capitol or its assets other than in
connection with the Redemption Agreement;

                  (f) the Redemption and the Redemption Agreement shall not have
been  approved  by the  affirmative  vote of a majority of the votes cast by the
holders of the Company's capital stock other than the Stockholders; or

                  (g) September 30, 1997.

         6.       Expenses; Indemnification.

                  (a)  Expenses.  Subject to  paragraph  (b)  below,  each party
         hereto will pay all of its expenses in connection with the transactions
         contemplated by this Agreement, including, without limitation, the fees
         and expenses of its counsel and other advisers.





                                        3

<PAGE>



                  (b)  Indemnification.  To the extent the  Company's  directors
         (other than the Stockholders) in the proper exercise of their fiduciary
         obligations  to the Company  were  permitted by law to have the Company
         indemnify  the  Stockholders  in their  capacity as  stockholders,  the
         Company  agrees to pay promptly and to indemnify the  Stockholders  and
         hold them harmless from, all reasonable expenses  (including  attorneys
         fees and other professional  fees) and loss reasonably  incurred by the
         Stockholders  in whole or in part in their capacity as  stockholders in
         connection with the following:

                           (i) The review and  negotiation of this Agreement and
         research on related issues.

                           (ii)   Any   actual   or    threatened    litigation,
         investigation  or proceeding  initiated by another  stockholder  of the
         Company  relating to this  Agreement,  the  redemption,  the Redemption
         Agreement,  or the Erikson  Consulting  and  Non-Competition  Agreement
         (collectively,  the  "Agreements").  In no event,  however,  shall such
         expenses  or losses  include  any  expense or loss  arising  out of the
         failure by the Stockholders to perform their  obligations  under any of
         the Agreements.

                           (iii)   Any   actual   or   threatened    litigation,
         investigation or proceeding  initiated by one or more of the parties to
         this  Agreement  involving  a dispute as to the  interpretation  of the
         language  of this  Agreement,  or as to the  existence,  non-existence,
         occurrence  or   non-occurrence   of  any  of  the  conditions  to  the
         Stockholders'  obligations  under this Agreement set forth in Section 3
         hereof and any  dispute as to whether  this  Agreement  has  terminated
         under Section 5 hereof.  In no event,  however,  shall such expenses or
         losses  include  any  expense  or  loss  arising  from  an  intentional
         violation  of any of the  covenants  of the  Stockholders  set forth in
         Section 8.1 hereof.

                           (iv)   Any   actual   or    threatened    litigation,
         investigation  or  proceeding  initiated  by any other person or entity
         (including any government agency) other than another stockholder of the
         Company or one or more of the parties to this Agreement relating to any
         of the Agreements, provided that the Stockholders are successful on the
         merits or to the extent they otherwise prevail.  In no event,  however,
         shall such  expenses or losses  include any expense or loss arising out
         of the failure by the Stockholders to perform their  obligations  under
         any of the Agreements.

         The rights granted to the Stockholders under this Section 6(b) shall be
in addition to and not in lieu of any other rights.

         The  Stockholders  agree,  jointly  and  severally,  that they will pay
promptly and  indemnify the Company's  other  directors,  but only to the extent
they are not otherwise  indemnified by the Company or from  insurance,  from all
reasonable expenses  (including  attorneys fees and other professional fees) and
loss reasonably  incurred by either of those directors  arising from the Company
entering into this Agreement to indemnify the Stockholders.

         In the event of a dispute under this Section 6(b) either the Company or
one or both of the  Stockholders  may initiate  Alternative  Dispute  Resolution
("ADR"). ADR shall be pursuant to the provisions of 6. Del. C. ss.ss.  7701-7721
(the "Delaware ADR Act") expect that, as permitted by 6 Del. C. ss. 7702(a), the
parties  adopt by written  agreement a method of ADR that modifies the procedure
in the Delaware ADR Act as follows:

                           (i)  ADR  shall  apply  to  all  disputes,  including
         disputes  involving  $1,000 or more in contention and disputes over the
         interpretation of this paragraph 6(b).

                           (ii)  Once  the   Company  or  one  or  both  of  the
         Stockholders elects ADR, the ADR proceedings may not be revoked.

                           (iii) If at the regular  close of business on the day
         the  mediation  hearing  commenced,  the parties  have not resolved the
         dispute,  the ADR  Specialist  at that time or within two (2)  business
         days thereof shall make a binding  non-appealable  determination of the
         dispute.

                           (iv) Each party  involved  in the  dispute  shall pay
         their  own  attorneys'  fees and an  equal  share of the fee of the ADR
         Specialist,  provided,  however,  if the ADR Specialist makes a binding
         non-appealable  determination of the dispute,  the ADR Specialist shall
         include in the determination the




                                        4

<PAGE>



         allocation  of  payment  among  the  parties  of all fees and  expenses
         involved in the ADR  proceedings,  including  the fees and  expenses of
         both the ADR  Specialist  and the  parties'  attorneys.  Unless the ADR
         Specialist  deems  circumstances  mandate a different  allocation,  the
         losing  party  shall pay to the wining  party the amount of the winning
         party's  attorneys'  fees and expenses that do not exceed the amount of
         the losing party's fees and expenses,  as well as the fees and expenses
         of the ADR Specialist.

         7.   Confidentiality.   The  Stockholders   recognize  that  successful
consummation  of  the  transactions  contemplated  by  this  Agreement  and  the
Redemption Agreement may be dependent upon confidentiality with respect to these
matters.  Although the Company has not executed a Confidentiality Agreement with
respect  to the  transactions  contemplated  by the  Redemption  Agreement,  the
Stockholders  agree  that,  pending  public  disclosure  by  the  Company,   the
Stockholders  will not disclose or discuss these matters with anyone (other than
their legal counsel and advisors or the Company's legal counsel and advisors, if
any) not a party to this  Agreement  or the  Redemption  Agreement,  without the
prior written consent of Capitol and the Investors,  except for filings required
pursuant to the Securities  Exchange Act of 1934, as amended,  and the rules and
regulations  thereunder or disclosures the Company's or the Stockholders'  legal
counsel  advises in writing are  necessary in order to fulfill the  Company's or
the Stockholder's  obligations  imposed by law, in which events the Stockholders
shall give prompt prior notice of such disclosure to Capitol and Investors.

         8.       Certain Covenants of the Stockholders.

                  8.1 No Shop.  Except  (i) for  brokerage  margin  requirements
identified  in Schedule A and (ii) in  accordance  with the  provisions  of this
Agreement,  the Stockholders  agree,  while this Agreement is in effect, not to,
directly or indirectly:

                  (a) sell,  transfer,  pledge,  encumber,  assign or  otherwise
         dispose of, or enter into any contract,  option or other arrangement or
         understanding with respect to the sale, transfer, pledge,  encumbrance,
         assignment or other disposition of, any of the Shares;

                  (b) grant any proxies,  deposit any Shares into a voting trust
         or enter into a voting agreement with respect to any Shares; or

                  (c) take any action as the Stockholders to encourage, solicit,
         initiate,  or participate  in any way in  discussions  or  negotiations
         (except for  participation  in discussions or negotiations in which the
         Company is permitted to  participate  under the  Redemption  Agreement)
         with,  or  furnish  any  information  to, or afford  any  access to the
         properties,  books or records of the Company or Capitol,  or  otherwise
         assist,  facilitate  or  encourage,  any person or entity  (other  than
         Capitol and Investors, or their officers,  directors,  representatives,
         agents,  affiliates or associates)  in connection  with any possible or
         proposed  merger,  consolidation,  business  combination,  liquidation,
         reorganization,  sale or other disposition of assets, sale of shares of
         capital stock or similar transactions involving Capitol.

                  8.2 Notice re Additional Shares. The Stockholders agree, while
this Agreement is in effect, to notify Capitol and the Investors promptly of the
number of any  shares of the  Common  Stock  and Class B Stock  acquired  by the
Stockholders after the date hereof.

         9. Certain  Covenants of Capitol and  Investors.  Capitol and Investors
agree to use their reasonable best efforts to make and consummate the Redemption
pursuant  to  the  terms,  and  subject  to  the  conditions,  contained  in the
Redemption Agreement.

         10. Notices. All notices or other communications  required or permitted
hereunder shall be in writing  (except as otherwise  provided here) and shall be
deemed duly given when  received by delivery in person,  by  telecopy,  telex or
telegram or by certified  mail,  postage  prepaid,  or by an  overnight  courier
service, addressed as follows:





                                        5

<PAGE>




To the Company

Paul C. Kincheloe, Jr.               cc:      Bayard, Handelman & Murdoch
Webb C. Hays, IV                              902 Market Street, Suite 1300
c/o CERBCO, Inc.                              P.O. Box 25130
3421 Pennsy Drive                             Wilmington, DE  19899
Landover, MD  20785                           Attn:    Howard Handelman
Tel:     (301) 386-7400                       Tel:     (302) 429-4231
Fax:     (301) 322-3041                       Fax:     (302) 658-6395

                                                                            
                                              McGuire, Woods, Battle & 
                                                Boothe, L.L.P.
                                              8280 Greensboro Drive
                                              Suite 900
                                              Tysons Corner, VA  22102
                                              Attn:    John Stump
                                              Tel:     (703) 712-5000
                                              Fax:     (703) 712-5050
To the Stockholders

Robert W. Erikson                    cc:      Prickett, Jones, Elliott,
George Wm. Erikson                              Kristol & Schnee
c/o CERBCO, Inc.                              1310 King Street
3421 Pennsy Drive                             Wilmington, DE  19801
Landover, MD  20785                           Attn:    Michael Hanrahan
Tel:     (301) 386-7400                       Tel:     (302) 888-6513
Fax:     (301) 322-3041                       Fax:     (302) 658-8111
To Capitol

Capitol Office Solutions, Inc.       cc:      Reichelt, Nussbaum, LaPlaca
12000 Old Baltimore Pike                        & Miller
Beltsville, MD  20750                         7500 Greenway Center Drive
Attn:    Armen Manoogian                      Greenbelt, MD  20770
Tel:     (301) 937-5030                       Attn:    Raymond G. LaPlaca
Fax:     (301) 937-6031                       Tel:     (301) 474-9009
                                              Fax:     (301) 345-0565
To Investors

Golder, Thoma, Cressey, Rauner, Inc. cc:      Davis, Graham & Stubbs LLP
233 S. Wacker Drive, 61st Floor               1314 Nineteenth Street, N.W.
6100 Sears Tower                              Washington, D.C.  20036
Chicago, IL  60606-6402                       Attn:    J. Hovey Kemp
Attn:    Will Kessinger                       Tel:     (202) 822-1029
Tel:     (312) 382-2219                       Fax:     (202) 293-4794
Fax:     (312) 382-2201


         11. Entire  Agreement;  Amendment.  This  Agreement,  together with the
documents  expressly  referred to herein,  constitute the entire agreement among
the parties  hereto  with  respect to the subject  matter  contained  herein and
supersede all prior agreements and understandings among the parties with respect
to such subject matter. This Agreement may not be modified,  amended, altered or
supplemented  except by an  agreement in writing  executed by the party  against
whom such  modification,  amendment,  alteration  or  supplement is sought to be
enforced.





                                        6

<PAGE>



         12.  Assigns.  This  Agreement  shall be binding  upon and inure to the
benefit of the parties hereto and their respective  successors and assigns,  but
neither this Agreement nor any of the rights, interests or obligations hereunder
shall be assigned by any of the parties hereto without the prior written consent
of the other parties.

         13.  Governing Law. This Agreement,  and all matters  relating  hereto,
shall be governed by, and construed in accordance  with the laws of the State of
Delaware without giving effect to the principles of conflicts of laws thereof.

         14. Injunctive  Relief. The parties agree that in the event of a breach
of any  provision  of this  Agreement,  the  aggrieved  party may be  without an
adequate  remedy at law.  The  parties  therefore  agree  that in the event of a
breach of any  provision of this  Agreement,  the  aggrieved  party may elect to
institute and prosecute  proceedings in any court of competent  jurisdiction  to
enforce  specific  performance  or to  enjoin  the  continuing  breach  of  such
provision,  as well as to obtain  damages for breach of this  Agreement and such
aggrieved  party may take any such  actions  without the  necessity of posting a
bond.  By seeking or obtaining  such  relief,  the  aggrieved  party will not be
precluded  from  seeking  or  obtaining  any  other  relief  to  which it may be
entitled.

         15.  Counterparts;   Facsimile  Transmission.  This  Agreement  may  be
executed in any number of  counterparts,  each of which shall be deemed to be an
original and all of which together  shall  constitute one and the same document.
The  signature  of a  party  that  is sent to the  other  parties  by  facsimile
transmission  shall be binding as evidence of such  signatory's  agreement to be
bound by the terms of this Agreement.

         16.  Severability.  Any term or  provision of this  Agreement  which is
invalid or unenforceable in any jurisdiction shall, as to such jurisdiction,  be
ineffective  to the  extent  of  such  invalidity  or  unenforceability  without
rendering  invalid or  unenforceable  the remaining terms and provisions of this
Agreement or affecting  the  validity or  enforceability  of any of the terms or
provisions of this Agreement in any other jurisdiction. If any provision of this
Agreement is so broad as to be unenforceable such provision shall be interpreted
to be only so broad as is enforceable.

         17.  Further  Assurances.  Each party hereto shall  execute and deliver
such  additional  documents as may be  reasonably  necessary to  consummate  the
transactions contemplated by this Agreement.

         18. Third Party Beneficiaries.  Nothing in this Agreement, expressed or
implied, shall be construed to give any person other than the parties hereto any
legal or equitable  right,  remedy or claim under or by reason of this Agreement
or any provision contained herein.




                      [THIS SPACE INTENTIONALLY LEFT BLANK]




                                        7

<PAGE>



         IN WITNESS WHEREOF,  the Company,  Cerberonics,  Capitol, the Investors
and the  Stockholders  have each caused this  Agreement  to be executed by their
duly authorized officers as of the date and year first above written.


                             Stockholders:



                             By:-----------------------------
                                Robert W. Erikson



                             By:-----------------------------
                                George Wm. Erikson


                             The Company:

                             CERBCO, INC.



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


                             Cerberonics:

                             CERBERONICS, INC.



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







                                        8

<PAGE>



                             Capitol:

                             CAPITOL OFFICE SOLUTIONS, INC.



                             By:---------------------------
                                Armen A. Manoogian
                                President


                             Investors  (By GTCR IV,  as Agent):

                             GOLDER, THOMA, CRESSEY, RAUNER
                             FUND IV, L.P.

                             By:      GTCR IV, LP
                                      General Partner

                             By:      Golder Thoma Cressey Rauner, Inc.
                                      General Partner


                             By:----------------------------
                                Carl D. Thoma
                                Principal






                                        9

<PAGE>



EXHIBIT D

                               ERIKSON CONSULTING
                          AND NON-COMPETITION AGREEMENT


         THIS  AGREEMENT,  dated as of -------------,  1997, is between  Capitol
Office  Solutions,  Inc., a Delaware  corporation (the "Company"),  and --------
Erikson (the "Consultant").


                                    Recitals

         1. Pursuant to that certain  Investment,  Redemption and Stock Purchase
Agreement  dated  February ---, 1997 between the Company,  the  Company's  prior
stockholders  and certain  investors (the "Redemption  Agreement"),  a change of
control of the  Company  occurred in  connection  with the  consummation  of the
transactions  contemplated  by the  Redemption  Agreement  (defined  therein and
herein as the  "Transactions"),  effective  as of the  Closing  Date (as defined
thereunder).

         2. Prior to the Closing Date, the Consultant was a major stockholder of
the  Company's  ultimate  parent  and a  long-standing  member  of the  board of
directors of the Company,  and in such capacity gained valuable insight into the
operation of the Company's  business and the copier supply and service  industry
generally,  which  insight  and  expertise  would be useful and  valuable to the
Company's competitors.

         3. Immediately following the closing of the Transactions and the change
of control effected by the Transactions,  the Company,  with the approval of its
newly reconstituted board of directors,  now desires to engage the Consultant as
a  consultant  with  respect  to the  Company  and,  in  addition,  to  secure a
non-competition agreement from the Consultant,  and the Consultant is willing to
enter into such arrangements, all pursuant to the terms of this Agreement.

         4. The terms of the  Redemption  Agreement and all of the  Transactions
and this Agreement and all other related  agreements between the parties thereto
and/or their affiliates have been disclosed to the stockholders of CERBCO,  Inc.
("Cerbco") in a proxy statement relating thereto,  and the Redemption  Agreement
has been approved by Cerbco's stockholders.


                                    Agreement

         In consideration of the mutual  agreements and premises herein contain,
the receipt and sufficiency of which is hereby acknowledged, the Company and the
Consultant agree as follows:

         1. Consulting. The Company hereby engages the Consultant to serve as an
advisor and consultant  with respect to the Company,  and the Consultant  hereby
accepts such engagement, on the terms and conditions of this Agreement.

         2.  Term  of  Engagement.  The  term  of  the  Consultant's  engagement
hereunder shall commence as of the date first written above,  which shall be the
Closing Date under the Redemption Agreement, and shall continue thereafter for a
term of three (3) years until ----------------,  2000.  In addition to any other
remedies  the  Company  may have,  the  Company  may  terminate  this  Agreement
immediately  in the  event of any  material  breach  of the  provisions  of this
Agreement by the Consultant that is not cured within 30 days.

         3. Duties.  In  consideration  for the Consulting Fee (defined below in
Section 8) to be paid to the Consultant as  compensation  hereunder,  during the
term  of this  Agreement,  the  Consultant  shall  at all  reasonable  times  be
available to the Company on a mutually agreeable,  "as needed" basis to serve as
an advisor and consultant to the Company's  management and/or board of directors
in  connection  with the operation of the  Company's  business (the  "Consulting
Services").  The  Consultant  shall be  available  at least  one (1) and up to a
maximum of three (3) days per month for Consulting Services, upon request of the




                                        1

<PAGE>



Company.  The  Consulting  Services shall be scheduled and performed in a manner
that will not detract from Consultant's  performance of his duties as a director
and officer of Cerbco and its subsidiaries.

         4.  Expenses.  The  Company  will  reimburse  the  Consultant  for  all
reasonable  business expenses  incurred by the Consultant in rendering  services
hereunder upon submission to the Company of an accounting and substantiation for
such expenses and related receipts.

         5. Trade  Secret  Information.  The  Consultant  acknowledges  that the
information,  observations  and  data  obtained  by  him  while  engaged  by the
Company's  parent  and/or while a member of the  Company's  board of  directors,
concerning the business or affairs of the Company or any of its Subsidiaries (or
any of their predecessors) and the copier supply and service industry, which the
Company  or any  such  Subsidiary  considers  to be  confidential  and  which is
proprietary to the Company or any such Subsidiary  ("Trade Secret  Information")
are  the  property  of  the  Company  or any  such  Subsidiary.  Therefore,  the
Consultant agrees that he shall not disclose to any unauthorized  Person (except
(i) to the Company or, at the request of the Company, its Affiliates (as defined
in the  Redemption  Agreement),  (ii) to any entity  which shall  succeed to the
business of the Company or any such Subsidiary,  (iii) as may be required in the
regular  course of  business of the  Company or any such  Subsidiary  or (iv) as
required  by  law) or use for his own  purposes  any  Trade  Secret  Information
without the prior written consent of the Company,  unless and to the extent that
the  aforementioned  matters become  generally known to and available for use by
the public or Persons  knowledgeable  in the Company's  industry other than as a
result of the  Consultant's  acts or omissions which constitute a breach hereof.
The Consultant shall deliver to the Company at the termination of the Agreement,
or at any other time the Company  may  request,  all  memoranda,  notes,  plans,
records, reports, computer tapes, printouts and software and other documents and
data (and copies thereof) relating to the Trade Secret Information, Work Product
(as  defined  below in Section  7) or the  business  of the  Company or any such
Subsidiary which he may then possess or have under his control.

         6. Intellectual Property. The Consultant  acknowledges that any and all
intellectual  property other than the Trade Secret  Information  (including,  if
any, all inventions, innovations, improvements,  developments, methods, designs,
analyses,  drawings,  reports and all similar or related information (whether or
not patentable))  which (i) relate to the Company's or any of its  Subsidiaries'
(or any of their  predecessors)  actual or  anticipated  business,  research and
development  or existing or future  products or services or (ii) result from any
work performed by the Consultant for the Company and its Subsidiaries (or any of
their predecessors) and which are conceived, developed or made by the Consultant
while  engaged by the  Company  ("Work  Product")  belong to the Company or such
Subsidiaries.

         7.       Non-Compete, Non-Solicitation.

                  (a) As further  consideration for the Non-Compete Fee (defined
below in Section 8) to be paid to the  Consultant  hereunder and his exposure to
or involvement in the Trade Secret Information, the Consultant acknowledges that
in the course of his  engagement by the Company,  he shall become  familiar with
business data, trade secrets and other Trade Secret  Information  concerning the
Company and its  Subsidiaries  and that his  services  have been and shall be of
special,  unique and  extraordinary  value to the Company and its  Subsidiaries.
Therefore, the Consultant agrees that, during the Non-compete Period (as defined
in Section 10 hereof),  he shall not directly or indirectly own any interest in,
manage,  control,  participate in, consult with,  render services for, or in any
manner  engage in any business  competing  with the business the Company and its
Subsidiaries,  or their successors and assigns, were engaged in at the time this
Agreement was entered into within any countries or geographical regions in which
the Company and its  Subsidiaries,  or their  successors and assigns,  engage or
plan  to  engage  in  such  business  on  the  date  of the  termination  of the
Consultant's  engagement;  provided,  however, nothing herein shall prohibit the
Consultant  from  being a passive  owner of not more than 5% of the  outstanding
stock of any class of a  corporation  which is publicly  traded,  so long as the
Consultant has no active participation in the business of such corporation.

                  (b) During the Noncompete  Period,  the  Consultant  shall not
directly or indirectly  through  another  entity (i) induce or attempt to induce
any  employee of the Company or any of its  Subsidiaries  to leave the employ of
the Company or such Subsidiaries,  or in any way interfere with the relationship
between the Company or any of its  Subsidiaries and any employee  thereof,  (ii)
hire any  person  who was a  management  employee  of the  Company or any of its
Subsidiaries at any time during the one-year period prior to the




                                        2

<PAGE>



termination  of the Agreement or (iii) induce or attempt to induce any customer,
supplier,  licensee,  licensor,  franchisee  or other  business  relation of the
Company or any of its  Subsidiaries  to cease doing business with the Company or
such  Subsidiaries,  or in any way materially  interfere  with the  relationship
between any such  customer,  supplier,  licensee or  business  relation  and the
Company or any of its Subsidiaries  (including,  without limitation,  making any
negative statements or communications about the Company or its Subsidiaries).

                  (c) If, at the time of  enforcement of this Section 8, a court
shall  hold that the  duration,  scope or area  restrictions  stated  herein are
unreasonable  under  circumstances  then  existing,  the parties  agree that the
maximum  duration,  scope or area reasonable under such  circumstances  shall be
substituted for the stated  duration,  scope or area and that the court shall be
allowed to revise the restrictions contained herein to cover the maximum period,
scope and area  permitted by law. The  Consultant  agrees that the  restrictions
contained in this Section 8 are reasonable.

                  (d) In the  event of any  breach or  threatened  breach by the
Consultant  of any of the  provisions  of this  Section 8, the  Company  and its
Subsidiaries,  in  addition  and  supplementary  to other  rights  and  remedies
existing  in its favor,  may apply to any court of  competent  jurisdiction  for
specific  performance  and/or  injunctive or other relief in order to enforce or
prevent any violations of the provisions hereof (without posting a bond or other
security).  In addition,  in the event of an alleged  breach or violation by the
Consultant of this Section 8, the  Noncompete  Period shall be tolled until such
breach or violation has been duly cured.

                  (e) Subject to the foregoing,  nothing in this Agreement shall
prevent  Consultant  from accepting any employment or consulting  engagements of
any kind or from otherwise accepting any business opportunity.

         8. Compensation.  For the Consultant's agreements contained in Sections
5, 6 and 7 hereof,  the Company shall pay the  Consultant a fee of $150,000 (the
"Noncompete Fee") which shall be due and payable promptly after the date hereof.
For providing the Consulting  Services during the term hereof, the Company shall
pay  Consultant  a total fee of $150,0000  (the  "Consulting  Fee").  Unless the
Company and the Consultant  mutually agree to a different  installment  schedule
(e.g., monthly or quarterly), the Fee shall be paid in three annual installments
of $50,000 each.  The first payment shall be due and payable  promptly after the
date hereof, with respect to the Consultant's first year of Consulting Services.
The second  payment  shall be due and payable on the first  anniversary  of such
date, with respect to the Consultant's second year of Consulting  Services.  The
third  payment shall be due and payable on the second  anniversary  of such date
with respect to the third year of such Consulting Services. Any payment due on a
day which is not a business day shall be paid on the next business day.  Accrued
but unpaid  Fees shall bear  interest  at the rate of [eight  percent  (8%)] per
annum until paid. If at the time payment of the second or third  installment  is
due, the Consultant is unavailable or unable to perform  Consulting  Services in
that year, the Company shall not be required to make the applicable payments.

         9. Consultant's  Representations.  The Consultant hereby represents and
warrants to the Company that (i) the execution,  delivery and performance by the
Consultant of this  Agreement and all other  agreements  contemplated  hereby to
which the  Consultant  is a party do not and shall not  conflict  with,  breach,
violate or cause a default under any  contract,  agreement,  instrument,  order,
judgment or decree to which the  Consultant  is a party or by which he is bound,
(ii) with respect to the business in which the Company is engaged on the date of
this  Agreement,  the  Consultant  is not a party to or bound by any  employment
agreement,  noncompete  agreement or  confidentiality  agreement  with any other
person or entity  that  remains  in full  force and  effect,  and (iii) upon the
execution and delivery of this Agreement by the Company, this Agreement shall be
the valid and binding  obligation of the  Consultant,  enforceable in accordance
with its terms.

         10.   Representations  and  Warranties  of  the  Company.  The  Company
represents and warrants that:

                  (a) The  Company  has all  necessary  power and  authority  to
execute  and  deliver,  and  to  perform  all  of its  obligations  under,  this
Agreement.  This Agreement has been duly  authorized,  executed and delivered by
the  Company  and  constitutes  a valid and  binding  obligation  of the Company
enforceable in accordance with its terms.





                                        3

<PAGE>



                  (b) The entering into by the Company of this Agreement and the
performance  by the  Company  hereunder  will  not  conflict  with,  violate  or
constitute  a breach of, or require any  consent or approval  under the terms of
its  certificate  of  incorporation  or  by-laws,  or  any  agreement,  license,
arrangement or  understanding,  whether  written or oral, or any law,  judgment,
decree, order, rule or regulation to which the Company is a party or by which it
is bound.

         11. Alternative Dispute  Resolution.  In the event of a dispute between
the parties  under this  Section 11,  either the Company or the  Consultant  may
initiate  Alternative Dispute Resolution  ("ADR").  ADR shall be pursuant to the
provisions of 6 Del.C.  ss.ss.7701-7721 (the "Delaware ADR Act") except that, as
permitted  by 6 Del.C.  ss.7702(a),  the  parties  adopt by written  agreement a
method of ADR that modifies the procedure in the Delaware ADR Act as follows:

                           (i)  ADR  shall  apply  to  all  disputes,  including
         disputes  involving  $1,000 or more in contention and disputes over the
         interpretation of this Agreement.

                           (ii) Once the Company or the Consultant elects ADR, 
         the election may not be revoked.

                           (iii) If the dispute is resolved by the  agreement of
         the parties,  the  reasonable  expenses and fees of the ADR  Specialist
         shall be as agreed upon by the parties or, absent such agreement, split
         equally between the parties.

                           (iv) If at the  regular  close of business on the day
         ADR  commenced,  the parties have not  resolved  the  dispute,  the ADR
         Specialist  at that time or within two (2) business  days thereof shall
         make a binding non-appealable determination of the dispute.

                           (v)  If  the  dispute  is   determined   by  the  ADR
         Specialist pursuant to subparagraph (iv) above, the reasonable expenses
         and fees of the ADR  Specialist  and of the  prevailing  party shall be
         paid by the losing party, as determined by the ADR Specialist.

         12.      Definitions.

                  "Noncompete  Period"  means during the term of this  Agreement
and upon termination of this Agreement prior to its expiration by the Consultant
or the Company for any reason, a period of time, to be determined by the Company
in its sole discretion  within 30 days after such  termination,  of no more than
two additional years thereafter.

                  "Subsidiaries"   means,  with  respect  to  any  person,   any
corporation,  limited  liability  company,  partnership,  association  or  other
business  entity of which (i) if a  corporation,  a majority of the total voting
power of shares of stock  entitled  (without  regard  to the  occurrence  of any
contingency) to vote in the election of directors,  managers or trustees thereof
is at the time owned or controlled,  directly or  indirectly,  by such person or
entity or one or more of the other  Subsidiaries  of such  person or entity or a
combination  thereof,  or  (ii) if a  limited  liability  company,  partnership,
association or other  business  entity,  a majority of the  partnership or other
similar ownership interest thereof is at the time owned or controlled,  directly
or  indirectly,  by any  person or entity  or one or more  Subsidiaries  of such
person or entity or a combination thereof.

         13. Non-Assignability.  The Consultant shall have no right to assign or
transfer any rights hereunder. The Company may assign its rights and obligations
to third parties or Affiliates with the prior written consent of the Consultant,
which consent shall not be unreasonably withheld.

         14.  Binding  Nature,  Governing  Law,  Amendment  and  Waiver,  Entire
Agreement.  This Agreement shall be binding upon the Company, its successors and
assigns, and upon the Consultant and his respective heirs,  legatees,  executors
and administrators. This Agreement shall be construed and enforced in accordance
with the laws of the state of Delaware.  This  Agreement  may not be modified or
amended  except by an  instrument  in writing  signed by both the  parties.  Any
inconsistency  or conflict  between the terms of this Agreement and any purchase
order,  invoice or other  communication shall be solely governed by the terms of
this  Agreement.  This  Agreement  is the entire  agreement  between the parties
hereto with regard to the subject




                                        4

<PAGE>



matter hereof and supersedes all prior  discussions,  arrangements or agreements
between the parties relating thereto.

         15. Independent  Contractor.  The relationship of the Consultant to the
Company  is that of an  independent  contractor.  The  Consultant  shall  not be
considered  an  employee  or agent  of the  Company,  and  except  as  specified
elsewhere in this Agreement,  shall have absolutely no authority to bind, commit
or otherwise  obligate the Company in any way whatsoever.  The Consultant is not
eligible to participate in any employee benefit or other plan of the Company.

         16.  Counterparts;   Facsimile  Transmission.  This  Agreement  may  be
executed in several counterparts,  each of which shall be deemed an original but
all of which  counterparts  collectively  shall  constitute one instrument.  The
signature of a party sent by facsimile  transmission to the other party shall be
binding as evidence of such  signatory's  agreement  to be bound by the terms of
this Agreement.


         IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as
of the date and year first above written.

                         THE COMPANY:

                         CAPITOL OFFICE SOLUTIONS, INC.



                         By:---------------------------
                         Name:      Armen A. Manoogian
                         Title:     President


                         CONSULTANT:



                         ------------------------------
                         ---------------Erikson





                                        5

<PAGE>



EXHIBIT E


                               EXECUTIVE AGREEMENT


         This  Executive  Agreement  (this  "Agreement")  is entered  into as of
- ------------,  1997, by and between Armen A. Manoogian ("Executive") and Capitol
Office Solutions, Inc., a Delaware corporation (the "Company").


                                    Recitals

         A. The  Company  and  Executive  desire to enter into an  agreement  to
provide for the terms and conditions of Executive's employment with the Company.


                                    Agreement

         NOW,  THEREFORE,  in  consideration of the foregoing and other good and
valuable consideration, the parties hereto agree as follows:


                   ARTICLE I. TERMS AND CONDITIONS OF SERVICES

         1.1  Engagement.  The  Company  hereby  engages  Executive  to serve as
President of the Company, and Executive agrees to serve the Company,  during the
Service Term (as defined in Section 1.6 hereof) in the  capacities,  and subject
to the terms and conditions, set forth in this Agreement.

         1.2      Services.

                  (a) During the Service Term, Executive, as President and Chief
Executive Officer of the Company, shall have all the duties and responsibilities
customarily  rendered by presidents and chief executive officers of companies of
similar size and nature and which are consistent  with the services  rendered by
Executive  to the  Company  immediately  prior to the date  hereof and as may be
delegated  from time to time by the Company's  Board of Directors (the "Board");
provided,  however,  the  following  actions of the Company  must be approved in
advance by the Board:

                  (i)  Acquisitions  or dispositions of the assets or stock of a
business with a value in excess of $10,000;

                  (ii)    Employment    agreements    (other    than    standard
confidentiality  and  noncompetition  agreements  with  employees)  and stock or
option issuances;

                  (iii)    Annual corporate objectives;

                  (iv) Annual operating budgets (including capital  expenditures
budgets);

                  (v) Contracts  with an operating cost to the Company in excess
of $10,000  (not  including  expenses  required as a  consequence  of a customer
contract);

                  (vi) Dividends,  distributions or redemptions of the Company's
capital stock; and

                  (vii) Statutory  corporate matters,  including sales of stock,
amendments to the Company's  charter or bylaws and  qualifying to do business in
other jurisdictions.





                                        1

<PAGE>



Executive  will devote his best  efforts and  substantially  all of his business
time and attention  (except for vacation periods and periods of illness or other
incapacity) to the business of the Company and its subsidiaries. Notwithstanding
the  foregoing,  and provided that such  activities  do not  interfere  with the
fulfillment of Executive's  obligations hereunder,  Executive may (i) serve as a
director  or  trustee of any  charitable  or  non-profit  entity;  (ii)  acquire
investment  interests  in one or  more  entities  which  are  not,  directly  or
indirectly, in competition with the Company or its subsidiaries and which do not
provide supplies to the Company; or (iii) own up to 5% of the outstanding voting
securities of any publicly-held company.

                  (b) Unless the Company and  Executive  agree to the  contrary,
Executive's  place of employment shall be at the Company's  principal  executive
offices in Beltsville,  Maryland;  provided, however, that Executive will travel
to such other  locations of the Company and its  affiliates as may be reasonably
necessary in order to discharge his duties hereunder.

         1.3 Salary and Bonus.  During the Service  Term,  the Company shall pay
Executive  an annual base salary of $200,000,  subject to periodic  increases at
the discretion of the Board (the "Base  Salary").  Commencing with the Company's
fiscal year ending June 30, 1998, Executive shall be entitled to an annual bonus
of up to one-half of Executive's Base Salary based upon the Company's attainment
of its  yearly  business  plan as  determined  in good  faith by the Board  (the
"Annual Plan").

         1.4 Other Benefits.  Executive shall be entitled to continue to receive
the fringe benefits, including, without limitation, medical, dental, disability,
and life insurance benefits and participation in the Company's 401(k) plan, plus
any other  benefits  approved by the Board and made  available  to other  senior
executives of the Company.

         1.5      Termination.

                  (a) Events of  Termination.  Executive's  employment  with the
Company shall cease upon:

                  (i)   Executive's death.
                  (ii)  Executive's voluntary retirement.

                  (iii) the sale of the Company as  contemplated by Section 6(b)
of the  Stockholders  Agreement  of even  date  herewith  between  the  Company,
Executive  and  the  other   stockholders  of  the  Company  (the  "Stockholders
Agreement").

                  (iv) Executive's disability, which means his incapacity due to
physical  or mental  illness  such that he is unable to perform  his  previously
assigned duties where (A) such incapacity has been determined to exist by either
(i) the  Company's  disability  insurance  carrier  or  (ii)  by the  concurring
opinions  of two  licensed  physicians  (one  selected by the Company and one by
Executive), and (B) the Board has determined, based on competent medical advice,
that  such  incapacity  will  continue  for such  period of time of at least six
continuous  months  and that it would  have a  material  adverse  effect  on the
Company.  Any  such  termination  for  disability  shall  be only  as  expressly
permitted by the Americans with Disabilities Act.

                  (v) Termination by the Company by the delivery to Executive of
a written notice from the Board that Executive has been  terminated  ("Notice of
Termination") with or without Cause. "Cause" shall mean:

                           (A)  Executive's  conviction  for,  or  plea  of nolo
         contendere to, (1) a felony, (2) a misdemeanor  materially injurious to
         the Company, or (3) Executive's misappropriation of any funds or assets
         of the Company for personal use;

                           (B)   Executive's continued substantial neglect of
         his duties, after written notice from the Board and an opportunity to 
         correct;

                           (C)   Gross misconduct in the performance of his 
         duties hereunder, materially injurious to the reputation, business or 
         operation of the Company; or





                                        2

<PAGE>



                           (D)  Executive's  engaging in conduct  constituting a
breach of Section 1.7 hereof.

         Executive  must be notified in writing (which writing shall specify the
         cause in reasonable  detail) of any  termination  of his employment for
         Cause.  Executive will then have the right,  within ten days of receipt
         of such notice, to file a written request for review by the Company. In
         such  case,  Executive  will be  given  the  opportunity  to be  heard,
         personally or by counsel,  by the Board and a majority of the Directors
         must  thereafter  confirm that such  termination  is for Cause.  If the
         Directors do not provide such  confirmation,  the termination  shall be
         treated as other than for Cause.

                           The  delivery by the  Company of notice to  Executive
         that it does not intend to renew this  Agreement as provided in Section
         1.6 shall  constitute a termination by the Company without Cause unless
         such notice fulfills the requirements of Section 1.5(a)(v)(A), (B), (C)
         or (D) above.

                  (vi) Executive's  voluntary resignation by the delivery to the
Board of a written  notice from  Executive  that  Executive has resigned with or
without Good Reason.  "Good  Reason"  shall mean  Executive's  resignation  from
employment  with the Company  within 30 days after the  occurrence of any one of
the following:

                           (A) the failure of the Company to pay an amount owing
         to Executive  hereunder  after  Executive has provided the Company with
         written notice of such failure and such payment has not thereafter been
         made within 15 days of the delivery of such written notice;

                           (B) the forced relocation of Executive from the 
         Washington, D.C. metropolitan area without his consent; or

                           (C) a  material  reduction  in  Executive's  title or
         duties from those set forth in this Agreement without Executive's prior
         written consent.

                  (b)      Rights on Termination.

                  (i) In the event that  termination  is by Executive  with Good
Reason or by the Company without Cause,  the Company will pay Executive the Base
Salary for a period equal to one year.

                  (ii) In the event  termination is by the Company without Cause
and the Company is meeting 100% of its  operating  income (EBIT) budget (as such
budget shall be mutually  agreed upon by Executive and Golder,  Thoma,  Cressey,
Rauner Fund IV, L.P., and as set forth in the then-current  Annual Plan approved
by the Board),  Executive  shall have the right to proceed under the  provisions
relating  to the sale of the  Company as  contemplated  by  Section  6(b) of the
Stockholders  Agreement and the Company shall  continue to employ the Executive,
and the  Executive  agrees  that he will  continue  to serve,  as the  Company's
President and Chief  Executive  Officer  until,  and the  effective  date of his
termination  shall be, the date on which any sale  pursuant to such Section 6(b)
is consummated.

                  (iii) If the Company  terminates  Executive's  employment  for
Cause,  if Executive  dies or is disabled,  if  Executive  resigns  without Good
Reason or in the event of a sale of the Company as  contemplated by Section 6(b)
of the Stockholders Agreement, the Company's obligations to pay any compensation
or benefits under this Agreement will cease  effective the date of  termination.
Executive's  right to receive any other  benefits will be  determined  under the
provisions applicable plans, programs or other coverages.

                  Notwithstanding  the  foregoing,  the Company's  obligation to
Executive for severance  pay or other rights under either  subparagraphs  (i) or
(ii) above (the "Severance Pay") shall cease if Executive is in violation of the
provisions of Section 1.7(a) hereof. The Severance Pay, if any, shall be paid by
the Company to  Executive  in equal  monthly  consecutive  installments  payable
commencing on the Company's  regularly scheduled payroll date next following the
date of Executive's  termination.  Until such time as Executive has received all
of his  Severance  Pay,  he will be  entitled to continue to receive any health,
life,  accident and  disability  insurance  benefits  provided by the Company to
Executive  under this Agreement.  If Executive dies or is permanently  disabled,
then Executive or his estate shall be entitled to any disability  income or life
insurance payments from any insurance policies paid for by the Company.





                                        3

<PAGE>



         1.6  Term of  Employment.  Unless  Executive's  employment  under  this
Agreement  is  sooner  terminated  as a result  of  Executive's  resignation  or
termination in accordance  with the provisions of Section 1.5(a) above or a sale
of the Company as  contemplated by Section 6(b) of the  Stockholders  Agreement,
Executive's  employment  under this Agreement  shall commence on the date hereof
and shall  terminate on the third  anniversary  of the date hereof (the "Service
Term"); provided, however, that Executive's employment under this Agreement, and
the Service Term, shall be automatically renewed for one-year periods commencing
on the third anniversary of the date hereof and, thereafter,  on each successive
anniversary  of such date unless  either the Company or  Executive  notifies the
other party in writing within thirty days prior to any such  anniversary that it
or he desires to terminate Executive's employment under this Agreement.

         1.7      Covenant Not to Compete.

                  (a) Executive  agrees that,  during the Service Term and for a
period (the  "Noncompete  Period") ending two years after Executive ceases to be
employed by the Company, he will not, except with the express written consent of
the  Board,  either  directly  or  indirectly,  for  himself  or on behalf or in
conjunction  with any other person,  partnership,  corporation  or other entity,
own,  maintain,  engage in, render any services for, manage,  have any financial
interest  in,  or  permit  his name to be used in  connection  with  any  office
equipment/copier  service or dealer  business in any market in the United States
in which the Company or its subsidiaries are engaged or have firm plans to enter
within  six  months  after the date that  Executive's  employment  hereunder  is
terminated;  provided, however, that notwithstanding the foregoing such covenant
shall not apply to Executive's  ownership of up to 5% of the outstanding  voting
securities  of any  publicly-held  company  which may be  engaged  in the office
equipment/copier service or dealer business.

                  (b) If, at the time of enforcement of any provision of Section
1.7(a)  above,  a  court  holds  that  the   restrictions   stated  therein  are
unreasonable under  circumstances  then existing,  the parties hereto agree that
the  maximum  period,   scope  or  geographical   area  reasonable   under  such
circumstances will be substituted for the stated period, scope or area.

                  (c) In the event of a breach by Executive of the provisions of
Section 1.7(a) above,  the Company or its successors or assigns may, in addition
to other  rights and  remedies  existing in their  favor,  apply to any court of
competent  jurisdiction  for specific  performance  and/or  injunctive  or other
relief in order to enforce or prevent any violations of the provisions thereof.

                  (d)  After the  later of (i) the date  Executive's  employment
hereunder is terminated  (whether due to his termination or resignation) or (ii)
the date that  Executive  has received all of his Severance Pay (such date being
referred to as the "Effective  Date"), the Company shall advise Executive of its
election to continue to enforce the  provisions of Section  1.7(a) above for the
period of time desired,  in incremental  periods of one month, in writing within
15 business days after the Effective  Date. If the Company elects to continue to
enforce the provisions of Section  1.7(a) after the Effective  Date, the Company
shall pay Executive,  as additional  consideration for Executive's agreement not
to compete,  an amount  equal to 15% of  Executive's  then  monthly  Base Salary
during each month of the  non-compete  commencing  with the first calendar month
after the month of the  Effective  Date,  such amount to be paid to Executive in
accordance with the Company's  normal payroll  schedule.  In no event shall such
time period exceed the Noncompete Period set forth in Section 1.7(a) above.

                  (f) The provisions of this Section 1.7 are  independent of any
other  noncompete  agreement  between  the Company  and  Executive  and shall be
cumulative with any such noncompete provisions set forth in such agreement.

         1.8  Confidential   Information.   Executive   acknowledges   that  the
information  and data obtained by him during the course of his  employment  with
the Company concerning the business or affairs of the Company and its affiliates
are the property of the Company.  Therefore,  Executive  agrees that he will not
disclose  to any  unauthorized  person  or use for his own  benefit  any of such
information or data without the Board's prior written consent, unless and to the
extent that the  aforementioned  matters become generally known to and available
for  use by the  public  otherwise  than  as a  result  of  Executive's  acts or
omissions.  Executive agrees to deliver to the Company at the termination of his
employment, or at any other time the Company may request, all memoranda,  notes,
plans, records, reports and other documents (and copies




                                        4

<PAGE>



thereof) relating to the business of the Company and its Affiliates which he may
then possess or have under his control.

         1.9 Executive's Representations and Warranty.  Executive represents and
warrants that he has full right and  authority to enter into this  Agreement and
fully to  perform  his  obligations  hereunder,  that he is not  subject  to any
non-competition  agreement,  and that his past,  present and anticipated  future
activities have not and will not infringe on the  proprietary  rights of others.
Executive  further  represents  and warrants that he is not obligated  under any
contract (including  licenses,  covenants or commitments of any nature) or other
agreement,  or  subject  to any  judgment,  decree  or  order  of any  court  or
administrative  agency which would  conflict with his obligation to use his best
efforts to promote the interests of the Company or which would conflict with the
Company's  business  as  conducted  or  proposed  to be  conducted.  Neither the
execution nor delivery of this  Agreement,  nor the carrying on of the Company's
business as an officer, director or employee by Executive, will conflict with or
result in a breach of the terms,  conditions  or  provisions  of or constitute a
default under any contract,  covenant or instrument under which Executive is now
obligated.


                         ARTICLE II. GENERAL PROVISIONS

         2.1  Notices.  Any notice  provided  for in this  Agreement  must be in
writing and must be delivered to the recipient at the address indicated below:

                  To the Company:

                  Capitol Office Solutions, Inc.
                  c/o Golder, Thoma, Cressey, Rauner Inc.
                  233 S. Wacker Drive, 61st Floor
                  6100 Sears Tower
                  Chicago, IL  60606-6402
                  Attn:             Will Kessinger
                  Tel No.:          (312) 382-2219
                  Fax No.:          (312) 382-2201

                  with a copy to:

                  Davis, Graham & Stubbs LLP
                  1314 Nineteenth Street, N.W.
                  Washington, DC  20036
                  Attn:             J. Hovey Kemp
                  Tel No.:          (202) 822-1029
                  Fax No.:          (202) 293-4794

                  To Executive:

                  Armen A. Manoogian
                  c/o Capitol Office Solutions, Inc.
                  12000 Old Baltimore Pike
                  Beltsville, MD  20704
                  Tel No.:          (301) 937-5030
                  Fax No.:          (301) 937-6031


                  with a copy to:

                  Arent Fox Kintner Plotkin & Kahn
                  Washington Square
                  1050 Connecticut Avenue, N.W.
                  Washington, DC  20036-5339




                                        5

<PAGE>



                  Attn:             Arnold R. Westerman
                  Tel No.:          (202) 857-6243
                  Fax No.:          (202) 857-6395



or such other  address or to the attention of such other person as the recipient
party shall have  specified by prior written  notice to the sending  party.  Any
notice under this Agreement will be deemed to have been given five business days
after  mailing by first class mail,  certified  return  receipt  requested,  one
business  day after  delivery  to a  receipted  courier  for next  business  day
delivery, or upon transmission by telex or facsimile.

         2.2 Severability.  Whenever possible,  each provision of this Agreement
will be interpreted in such manner as to be effective and valid under applicable
law, but if any  provision of this  Agreement is held to be invalid,  illegal or
unenforceable   in  any  respect  under  any  applicable  law  or  rule  in  any
jurisdiction,  such invalidity,  illegality or unenforceability  will not affect
any  other  provision  or any other  jurisdiction,  but this  Agreement  will be
reformed,  construed  and  enforced  in such  jurisdiction  as if such  invalid,
illegal or unenforceable provision had never been contained herein.

         2.3 Complete  Agreement.  This  Agreement,  those  documents  expressly
referred to herein and other documents of even date herewith embody the complete
agreement  and  understanding  among the parties and  supersede  and preempt any
prior  understandings,  agreements or  representations  by or among the parties,
written or oral, which may have related to the subject matter hereof in any way.

         2.4  Counterparts;   Facsimile  Transmission.  This  Agreement  may  be
executed on separate counterparts, each of which is deemed to be an original and
all of  which  taken  together  constitute  one and  the  same  agreement.  This
Agreement may be executed and delivered by facsimile transmission.

         2.5  Successors  and  Assigns.  This  Agreement is intended to bind and
inure to the  benefit of and be  enforceable  by  Executive  and the Company and
their  respective  successors and assigns,  except that Executive may not assign
any of his rights or obligations under Article I.

         2.6 Choice of Law.  This  Agreement  shall be governed by the  internal
law, and not the law of conflicts, of the State of Maryland.

         2.7 Remedies. Each of the parties to this Agreement will be entitled to
enforce its rights  under this  Agreement  specifically,  to recover  damages by
reason of any  provision  of this  Agreement  and to exercise  all other  rights
existing  in its favor.  The parties  hereto  agree and  acknowledge  that money
damages may not be an adequate  remedy for any breach of the  provisions of this
Agreement  and that any party may in its sole  discretion  apply to any court of
law  or  equity  of  competent  jurisdiction  for  specific  performance  and/or
injunctive  relief  in  order  to  enforce  or  prevent  any  violations  of the
provisions of this Agreement.

         2.8  Amendments  and Waivers.  Any  provision of this  Agreement may be
amended  or waived  only with the  prior  written  consent  of the  Company  and
Executive.

         2.9  Resolutions  of  Disputes.  All  disputes  between the Company and
Executive  arising  under this  Agreement  which cannot be resolved  promptly by
mutual agreement, will be resolved by binding arbitration in accordance with the
rules  of the  American  Arbitration  Association  and in  accordance  with  the
Arbitration Procedures attached hereto as Exhibit A.













                                        6

<PAGE>



         IN WITNESS WHEREOF, the parties have executed this Agreement on the day
and year first above written above.

                         EXECUTIVE:



                         By:--------------------------
                         Armen A. Manoogian


                         CAPITOL OFFICE SOLUTIONS, INC.



                         By:---------------------------
                         Carl D. Thoma
                         Chairman






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<PAGE>

EXHIBIT F

MERRILL LYNCH

Business Advisory Services

Private Client Group

854 East Algonquin Road
Suite 100
Schaumburg, Illinois 60173-3808
847 981 9800
FAX 847 397 0946


April 4, 1997                                PERSONAL AND CONFIDENTIAL



Board of Directors
CERBCO, Inc.
3421 Pennsy Drive
Landover, Maryland 20785

Gentlemen:

Capitol Office Solutions, Inc., a Delaware Corporation ("Capitol"), Cerberonics,
Inc., a Delaware Corporation  ("Cerberonics"),  and a wholly-owned subsidiary of
CERBCO,  Inc., a Delaware  Corporation  ("CERBCO"),  CERBCO and Armen Manoogian,
President and minority shareholder of Capitol,  have entered into an Investment,
Redemption and Stock Purchase  Agreement (the "Agreement")  with Golder,  Thoma,
Cressey,  Rauner Fund IV dated as of March 7, 1997.  Pursuant to the  Agreement,
the parties  thereto will enter into several  contemporaneous  transactions as a
result of which,  among other things,  Capitol will redeem all shares of Class A
common  stock,  Class B common stock and Class C common stock of Capitol held by
Cerberonics immediately prior to the closing of the transactions contemplated by
the Agreement (the "Transaction") for $19 million in cash (the "Consideration").
The Transaction is more fully described in the Agreement.

You have asked us whether,  in our opinion,  the Consideration to be received by
Cerberonics  pursuant to the Agreement is fair from a financial point of view to
CERBCO.  In  conducting  our  investigation  and analysis and in arriving at our
opinion set forth below, we have, among other things:

                  (i)      reviewed the Agreement and the proposed financial 
                           terms of the Transaction;

                  (ii)     reviewed audited  financial  information for the five
                           fiscal  years  ended June 30, 1992  through  1996 for
                           CERBCO  and  Capitol,   as  well  as  various   other
                           unaudited   financial   information  for  CERBCO  and
                           Capitol;

                  (iii)    compared  Capitol's  historical results of operations
                           with  that  of  certain  public  companies  which  we
                           considered relevant for our analysis;

                  (iv)     visited   Capitol's    headquarters   and   conducted
                           discussions   with   Capitol's   senior    management
                           concerning  the  history  and  past   performance  of
                           Capitol's current business  operations,  and reviewed
                           certain  forecasts  provided  to us in the  course of
                           such discussions relating to the business,  earnings,
                           cash flow, assets and prospects of Capitol;

                  (v)      reviewed  such other  financial  studies and analyses
                           and performed such other investigations and took into
                           account  such   accepted   financial   and  valuation
                           procedures and  considerations and such other matters
                           as we deemed relevant, including our




                                        1

<PAGE>


Board of Trustees
CERBCO, Inc.
April 4, 1997
Page 2
                           assessment of general and local economic,  market and
                           financial  conditions  which  have an  impact  on the
                           industry in which Capitol operates.

While we reviewed the  financial  terms of certain  transactions  involving  the
acquisition of companies in industries  comparable to Capitol's  operations,  we
did not  identify  a  sufficient  number  of  acquisitions  that we deemed to be
relevant for the purpose of our analysis and, accordingly, did not undertake any
analysis   comparing  the  financial  terms  of  the   Transaction   with  other
acquisitions.

In preparing our opinion, we have relied on the accuracy and completeness of all
financial and other  information  supplied or otherwise  made available to us by
CERBCO  and  Capitol,  or  which  are  publicly  available,   and  we  have  not
independently  verified such information or undertaken an independent  appraisal
or  valuation  of the assets or  liabilities  of  Capitol.  With  respect to any
financial  forecasts and projected expense reductions  provided by and discussed
with Capitol's  management,  we have assumed that such  financial  forecasts and
projected expense reductions  (together with the assumptions and bases therefor)
have been reasonably prepared and reflect the best currently available estimates
and  judgment  of  Capitol's  management  as to the  expected  future  financial
performance of Capitol.

This opinion is also given on the  assumption  that there are no  undisclosed or
unexpected  conditions  which would affect the value of Capitol's  assets or the
financial  condition or operations of Capitol or the expected  future  financial
performance of Capitol.

Our opinion is  necessarily  based upon market and general  economic  conditions
existing as of the date hereof.

The terms of our  engagement  are limited to expressing an opinion as to whether
the  Consideration  to be received by  Cerberonics  pursuant to the Agreement is
fair to  CERBCO  from a  financial  point of view and we were not  requested  to
assist and have not  participated in structuring or negotiating the terms of the
Transaction.  In addition,  our opinion does not address the relative  merits of
the Transaction and alternative business strategies involving Capitol, including
the sale of Capitol to third parties.

On the basis of, and subject to the foregoing,  were are of the opinion that the
proposed  Consideration to be received by Cerberonics  pursuant to the Agreement
is fair to CERBCO from a financial point of view.

Sincerely,

MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
by its division Merrill Lynch Business Advisory Services
("MLBAS")


By:               \s\ Nathaniel E. Sher
                  Nathaniel E. Sher
                  Senior Vice President (MLBAS)




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