CERBCO INC
DEF 14A, 1997-11-12
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:
        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):
        4) Proposed maximum aggregate value of transaction:
        5) Total fee paid:

[   ]   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 ANNUAL MEETING OF STOCKHOLDERS
                            FRIDAY, DECEMBER 19, 1997




To the Stockholders of CERBCO, Inc.:

         NOTICE IS HEREBY  GIVEN that the  Annual  Meeting  of  Stockholders  of
CERBCO, Inc., a Delaware corporation (the "Company"),  for the fiscal year ended
June 30, 1997,  will be held at the Club Hotel by Doubletree,  9100 Basil Court,
Landover,  Maryland, on Friday, December 19, 1997, at 10:00 a.m. local time, for
the following purposes:

         1. To elect directors of the Company;

         2. To approve the Company's 1997 Board of Directors' Stock Option Plan;
and

         3. To  transact  such other  business as may  properly  come before the
meeting or any adjournments thereof.

         The Board of  Directors  has fixed the close of business on October 23,
1997, as the record date for determining stockholders entitled to notice of, and
to vote at, the Annual Meeting.

         A copy of the  Company's  Annual  Report for the fiscal year ended June
30, 1997, a Proxy, and a Proxy Statement accompany this Notice.

         WHETHER OR NOT YOU EXPECT TO BE PRESENT 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
PARTICIPATION  IN THE MEETING  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.

                               By Order of the Board of Directors,



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


Landover, Maryland
November 10, 1997


<PAGE>


                                  CERBCO, Inc.
                                3421 Pennsy Drive
                            Landover, Maryland 20785

                    Annual Meeting of Stockholders to be Held
                                December 19, 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 Annual Meeting of Stockholders to be
held at the Club Hotel by Doubletree,  9100 Basil Court, Landover,  Maryland, on
Friday,  December 19, 1997, at 10:00 a.m.  local time,  and at any  adjournments
thereof (the "Meeting").

         The Board of Directors (the "Board") has fixed the close of business on
October 23, 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 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  election as director of the Company that
nominee for director  designated for election by the holders of Common Stock and
listed under the caption "Proposal No. 1 Election of Directors"  herein; FOR the
election as directors of the Company those nominees for director  designated for
election  by the  holders of Class B Common  Stock and listed  under the caption
"Proposal No. 1 Election of Directors" herein; FOR approval of the 1997 Board of
Directors'  Stock Option Plan as described in "Proposal  No. 2 - Approval of the
1997 Board of Directors'  Stock Option Plan" herein;  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 the  accompanying  Notice of Annual  Meeting,
Proxy and Annual Report are first being mailed to the Company's  stockholders of
record on or about November 10, 1997.

                      OUTSTANDING SHARES AND VOTING RIGHTS

         As of  the  Record  Date,  there  were  outstanding  1,482,956  shares,
comprised  of  1,186,726  shares of Common  Stock,  $.10 par value (the  "Common
Stock"),  and 296,230 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 of
one-third  (1/3) of the  outstanding  shares of Common Stock, or 395,576 of such
shares,  and one-third (1/3) of the outstanding  shares of Class B Common Stock,
or 98,744 of such shares.

         Each share of Common  Stock is entitled to one vote,  and each share of
Class B Common  Stock is  entitled  to ten  votes,  except  with  respect to the
election of directors and any other matter requiring the vote of Common Stock or
Class B Common Stock separately as a class. The holders of Common Stock,  voting
as a separate  class,  are  entitled  to elect that  number of  directors  which
constitutes  25% of the  authorized  number of members of the Board of Directors
and, if such 25% is not a whole  number,  then the  holders of Common  Stock are
entitled to elect the nearest  higher whole number of directors that is at least
25% of such  membership.  The holders of Class B Common Stock,  also voting as a
separate class, are entitled to elect the remaining  directors.  The affirmative
vote of the  holders of a  majority  of each  class of common  stock  present in
person or represented by proxy,  provided a quorum of that class is present,  is
necessary  for  the  election  of  directors  by  the  class.  For  purposes  of
determining whether a proposal has received a majority vote, abstentions will be
included in the vote totals  with the result  that an  abstention  will have the
same effect as a negative  vote.  Where  authority  to vote shares is  withheld,
including  instances where brokers are prohibited from exercising  discretionary
authority for beneficial owners who have not returned a proxy (so-called "broker
non-votes"),  those  shares  will  not be  included  in  the  vote  totals  and,
therefore, will have no effect on the vote.

                               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>

                                                                   Amount and Nature of
Name & Address of Beneficial Owner      Title of Class             Beneficial Ownership         Percent of Class
- ----------------------------------      --------------             --------------------         ----------------

<S>                                     <C>                            <C>      <C>                <C> 
Robert W. Erikson                       Common Stock                   60,700   1/                  5.1%
3421 Pennsy Drive                       Class B Common Stock          131,750   1/                 44.5%
Landover, MD

George Wm. Erikson                      Common Stock                   59,602   2/                  5.0%
3421 Pennsy Drive                       Class B Common Stock          115,814   2/                 39.1%
Landover, MD

Koonce Securities, Inc.                 Common Stock                  230,588   3/                 19.4%
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
CERBCO 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>

                                                      Amount & Nature of Beneficial Ownership
Name of Beneficial Owner     Title of Class            Owned Outright      Exercisable Options    Percent of Class
- ------------------------     --------------            --------------      -------------------    ----------------

<S>                          <C>                         <C>      <C>               <C>                   <C> 
Robert W. Erikson            Common Stock                 60,700  1/                0                      5.1%
                             Class B Common Stock        131,750  1/                0                     44.5%
George Wm. Erikson           Common Stock                 59,602  2/                0                      5.0%
                             Class B Common Stock        115,814  2/                0                     39.1%
Webb C. Hayes, IV            Common Stock                  4,500                    0                      0.4%
Paul C. Kincheloe, Jr.       Common Stock                  7,500                    0                      0.6%
All Directors and Officers
  as a Group (5 persons      Common Stock                132,302                    0                     11.1%
  including those named      Class B Common Stock        247,564                    0                     83.6%
  above) 3/

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/   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 1.7% of such class) of Insituform
     East, Incorporated,  pursuant to the Insituform East 1989 and 1994 Board of
     Directors' Stock Option Plans.
</TABLE>

                     PROPOSAL NO. 1 - ELECTION OF DIRECTORS

         The  authorized  number of  directorships  of the Board of Directors is
four. Four directors are presently serving.  Accordingly, in accordance with the
Company's  Certificate of Incorporation and By-laws, the Board has nominated one
director  to be  elected  by the  holders  of shares  of Common  Stock and three
directors to be elected by holders of shares of Class B Common Stock.  The terms
of all presently serving directors expire upon the election and qualification of
the  directors  to be elected at the  Meeting,  and the four  persons  presently
serving  as  directors  are all  nominees  to be  elected  at the  Meeting.  The
directors  elected will serve  subject to the  Company's  By-laws until the next
Annual  Meeting of  Stockholders  for the fiscal  year  ending June 30, 1998 and
until their respective successors shall have been duly elected and qualified.

         It is intended that the individuals named in the enclosed form of proxy
will vote their proxies in favor of the election of the persons  listed below as
the Board's nominees for the Company's directors, unless otherwise directed. The
Board  has no reason  to  believe  that any of the  nominees  for the  office of
director will not be available for election as director.  However, should any of
them become  unwilling to be elected or unable to serve, it is intended that the
individuals  named in the enclosed proxy may vote for the election of such other
person as the Board may recommend.

PRESENT DIRECTORS WHO ARE NOMINATED FOR RE-ELECTION

         One of the  four  nominees  for  election  to the  Board  of  Directors
identified  below has been  designated  for election by the holders of shares of
Common Stock,  and only the holders of such shares may vote with respect to such
nominee.  The remaining  three nominees have been designated for election by the
holders of shares of Class B Common  Stock,  and only the holders of such shares
may vote with respect to such nominees. Accordingly, the following list contains
a  designation  as to that  nominee to be elected by holders of shares of Common
Stock and those  nominees  to be  elected by holders of shares of Class B Common
Stock:
<TABLE>
<CAPTION>

                                                                          First Became     Class of Common Stock
Name, Age, Principal Occupation, Business Experience and Directorships     A Director       for Which Nominated

<S>                       <C>                                                <C>  <C>      <C>                     
Robert W. Erikson, Age 52  2/ 3/ 4/                                          1974 1/       Class B Common Stock
   President,   Treasurer   and  a  Director  of  CERBCO   since  1988;
   Insituform  East,  Inc. - Vice  Chairman  since  1986 and  President
   since 1991, a Director  since 1985 and Vice Chairman of the Board of
   Directors  from 1985 to 1986;  CERBERONICS,  Inc. - a Director since
   1974,  Chairman  since  1988,  and  President  from 1977 to 1988;  a
   Director of Palmer  National  Bancorp,  Inc. and The Palmer National
   Bank  from  1983 to 1996,  and a  Director  of The  Palmer  National
   Bank's successor,  The George Mason Bank, N.A., since 1996;  Capitol
   Office  Solutions,  Inc. - Vice Chairman and a Director from 1987 to
   June 30, 1997.

George Wm. Erikson, Age 55  2/ 3/                                            1975 1/       Class B Common Stock
   Chairman,  General  Counsel  and a Director  of CERBCO  since  1988;
   Insituform  East,  Inc. - Chairman and General Counsel since 1986, a
   Director since  1984 and  Chairman of the  Board  of  Directors from
   1985 to 1986; CERBERONICS,  Inc. - a Director  since  1975,  General
   Counsel since  1976, Chairman from 1979 to 1988,  and Vice  Chairman
   since 1988; Capitol Office Solutions, Inc.-Chairman, General Counsel
   and a Director from 1987 to June 30, 1997.

Webb C. Hayes, IV, Age 49  4/                                                 1991         Class B Common Stock
   Director and Executive  Vice  President of George Mason  Bankshares,
   Inc.  and  Chairman,  President  and CEO of The George  Mason  Bank,
   N.A., since 1996;  Chairman of the Board of Palmer National Bancorp,
   Inc. and The Palmer  National Bank from 1985 to 1996,  President and
   Chief Executive  Officer from 1983 to 1996;  Insituform East, Inc. -
   a Director since 1994;  Capitol Office Solutions,  Inc. - a Director
   from 1992 to June 30, 1997;  a Director of the Federal  Reserve Bank
   of Richmond from 1992 to 1995.

Paul C. Kincheloe, Jr., Age 56  4/                                            1991             Common Stock
   Practicing  attorney and real estate investor since 1967; Partner in
   the law firm of Kincheloe and  Schneiderman  since 1983;  Insituform
   East, Inc. - a Director since 1994;  Capitol Office Solutions,  Inc.
   - a  Director  from  1992 to June  30,  1997;  Director  of  Herndon
   Federal Savings & Loan from 1970 to 1983;  Director of First Federal
   Savings & Loan of Alexandria from 1983 to 1989.

1/   Includes service as a director of CERBERONICS, Inc., now a wholly-owned subsidiary of the Company.
2/   Member of the Corporate  Executive  Committee of the Company,  and the Chief  Executive  Officer
     Committee of Insituform East, Incorporated which committees perform the functions of the Chief
     Executive Officer of each of the respective companies.
3/   Messrs. Robert Erikson and George Erikson are brothers.
4/   Member of the Audit Committee.
</TABLE>

                      COMMITTEES OF THE BOARD OF DIRECTORS
                             AND MEETING ATTENDANCE

         The  Board of  Directors  has an Audit  Committee,  a  majority  of the
members of which are outside directors. The names of the committee's members are
indicated in the table  above.  The Board of  Directors  does not have  standing
nominating  or  compensation   committees,   or  committees  performing  similar
functions.

         The  Audit  Committee,  among  its  functions,  reviews  the  Company's
financial policies and accounting systems and controls, reviews the scope of the
independent  public  accountants' audit and approves the duties and compensation
of the  independent  public  accountants,  both  with  respect  to audit and any
non-audit  services.  The non-management  members of the Audit Committee consult
with the  independent  public  accountants  outside the  presence  of  corporate
management  or  other   employees  to  discuss   matters  of  concern,   receive
recommendations  or suggestions for change and have a free exchange of views and
information.

         During the fiscal year ended June 30,  1997,  the Board of Directors of
the Company held sixteen  meetings and the Audit  Committee  held two  meetings.
Each of the  Company's  directors  attended  75% or more of the total of (1) the
number of meetings of the Board of Directors and (2) the number of meetings held
by all  committees of the Board on which such Director  served during the fiscal
year ended June 30, 1997.

                             EXECUTIVE COMPENSATION

JOINT COMPENSATION REPORT BY THE BOARD OF DIRECTORS

GENERAL

         CERBCO,  Inc.  ("CERBCO" or the "Company") is a parent holding  company
with controlling interests in Insituform East, Incorporated  ("Insituform East")
[excavationless  sewer and pipeline  rehabilitation],  and, until June 30, 1997,
Capitol  Office  Solutions,  Inc.  ("Capitol")  [copier  and  facsimile  ("fax")
equipment sales, service and supplies].

         The  Company  does not have a  compensation  committee.  The  Corporate
Executive Committee (the "CEC")(1),  with the annual review and oversight of the
Board,  determines  the base salary for all  officers of the Company  except the
members of the CEC. The Board, as a whole, considers  compensation  arrangements
proposed by and for  members of the CEC and,  pursuant  to the  By-laws,  is the
ultimate  determiner of compensation  arrangements  for members of the CEC. When
considering  CEC  compensation  arrangements,  a portion of Board  review may be
conducted  in  camera,  excluding  CEC  members,  and  resolutions  of the Board
determining CEC compensation  arrangements  typically are voted upon twice, once
with CEC members abstaining.

- --------
     (1) Pursuant to the  Company's  By-laws,  the CEC performs the functions of
the Chief Executive  Officer of the Company.  The CEC presently has two members,
Messrs. George Wm. Erikson, Chairman and Robert W. Erikson, President.

PHILOSOPHY

         The executive compensation philosophy of the Company (which is intended
to apply to all of the executive  officers of the Company,  including members of
the CEC) is aimed at: (i)  attracting  and  retaining  qualified  management  to
implement the Company's  business plan; (ii)  establishing a direct link between
management  compensation  and  the  achievement  of  the  Company's  annual  and
long-term  performance  goals;  and (iii)  recognizing and rewarding  individual
initiative and achievement. The Board believes management compensation should be
set at levels  competitive  with  compensation  arrangements  provided  by other
companies  with which the Company  competes for executive  talent,  and by other
companies of similar  size,  business or  location.  It is also the Board's view
that the compensation of management should have a component  contingent upon the
Company's  level of  performance.  By aligning  the  financial  interests of the
Company's  executive  officers  and  those  of  its  shareholders,  the  Company
encourages  executive  officers to enhance the  profitability of the Company and
thus increase  shareholders'  value.  Since CERBCO officers devote a predominate
portion of their time to the affairs of the  operating  subsidiaries,  the Board
reviews and  considers  the  compensation  decisions of such  subsidiaries  when
determining the compensation arrangements of its officers. The Board and the CEC
review the compensation  arrangements of the Company's  executive  officers on a
continuing  basis to ensure  that such  arrangements  are  consistent  with this
executive compensation philosophy.

COMPONENTS OF COMPENSATION

         The compensation  program for the Company's officers (including members
of the CEC) which includes  compensation received from CERBCO and/or from one or
more  of  its  operating  subsidiaries,   consists  of:  (a)  base  salary;  (b)
compensation  pursuant to plans; and (c) incentive cash bonuses. The CEC and the
Board determine the base salary of CERBCO officers and the Board administers the
Company's  Supplemental  Executive  Retirement  Plan (the  "CERBCO  Supplemental
Retirement Plan") covering the Company's officers.  However, each CERBCO officer
additionally  serves as an officer with one or more of the  Company's  operating
subsidiaries  and  receives  significant  compensation,  including  base salary,
compensation  pursuant to plans and incentive bonuses, from each of the relevant
subsidiaries.  Accordingly,  the Company's  officers receive most of their total
annual  compensation  from  one or  more  of  the  subsidiaries  for  employment
responsibilities with such subsidiaries.  The CERBCO Board carefully reviews the
compensation  decisions  of the  subsidiaries  as they relate to the officers of
CERBCO.

         Commencing in 1994, a publicly  held  corporation  may not,  subject to
limited exceptions,  deduct for federal income tax purposes certain compensation
paid to certain  executives  in excess of $1 million  in any  taxable  year (the
"Deduction Limitation"). While the Company's compensation programs generally are
not intended to qualify for any of the  exceptions to the  applicability  of the
Deduction Limitation,  it is not expected that compensation to executives of the
Company will exceed the Deduction Limitation in the foreseeable future.

         (a) Base  Salary.  The base  salary  level for each  executive  officer
(including members of the CEC) is considered  annually in September,  and yearly
adjustments,  if any, are made  effective on or about  October 1st of each year.
The timing of such yearly reviews permits  consideration of information which is
developed each year for the Company's annual report, including audited financial
statements  for the fiscal year then ended June 30th.  The CEC is  empowered  to
adjust the annual base salary level of executive officers (other than members of
the CEC) at other  times  during  the year  should it deem any such  adjustments
appropriate.  Such  adjustments are included in the annual officer  compensation
review and approvals conducted by the Board each September.

                  The  annual   September   review  of  base  salary  levels  is
subjective.  No specific factors,  targets or criteria, such as the market value
of the  Company's  stock,  are  employed  in any  formula or other  quantitative
prescription  to  determine  base  compensation.  However,  consistent  with the
Company's  compensation   philosophy,   consideration  is  given  to  individual
initiative,  individual  achievement and the Company's  performance,  as well as
information  on salaries and other  remuneration  at other  companies of similar
size,  business or  location.  Since the  officers of CERBCO are employed by and
receive most of their salary from one or more of the Company's subsidiaries, the
CERBCO  Board  reviews  and  considers  the  base  salary   received  from  such
subsidiaries and determines whether the aggregate base compensation  received by
each officer is commensurate  with the time and effort devoted to the activities
of the Company and each subsidiary.

                  Applying  the  Company's  compensation  philosophy  during the
annual  review in September  1996,  it was the judgment of the CEC and the Board
that the base salary level of each executive  officer of the Company  (including
members of the CEC)  should be  increased  3%  effective  October  1,  1996.  In
addition, the Board concurred with the decision of (a) the Insituform East Board
of Directors, to increase by 3% effective October 1, 1996 the base salary of its
officers, and (b) the Capitol Board of Directors to increase by approximately 5%
effective  October  1, 1996 the base  salary of its three  senior  officers  who
together  function as the Chief  Executive  Officer  Committee  ("CEOC") of that
subsidiary.

         (b) Compensation Pursuant to Plans. The officers of CERBCO are eligible
to receive plan compensation through the CERBCO Supplemental Retirement Plan. In
addition, the officers of CERBCO,  including members of the CEC, are eligible to
participate  in  compensation  pursuant to plans offered to the employees of any
subsidiary with which such officer may also be employed.  Participation  in, and
benefits  acquired  under,  such plans are on a  nondiscretionary  formula basis
applicable to all employees (see "Compensation Pursuant to Plans").

                  Pursuant  to the  CERBCO  Supplemental  Retirement  Plan,  the
members of the CEC will receive a monthly retirement benefit for life equivalent
to 50% of the final aggregate  monthly salary such executives  received from the
Company and its  operating  subsidiaries.  The other  executives  covered by the
CERBCO  Supplemental  Retirement Plan will receive a monthly  retirement benefit
for life equivalent to 25% of the final aggregate monthly salary such executives
received  from the Company and its  operating  subsidiaries.  See  "Compensation
Pursuant to Plans - Supplemental Executive Retirement Plan."

                  The terms of the CERBCO  Supplemental  Retirement Plan require
the Company to establish a trust to facilitate the Company's satisfaction of its
obligations thereunder to pay supplemental  retirement benefits to the Company's
executive  officers.  The Company has established  such a trust,  which has been
funded by life insurance policies.

                  The Board  views the CERBCO  Supplemental  Retirement  Plan as
providing  important  benefits to the covered executives after their retirement.
Further,  the  Board  believes  that the  adoption  of the  CERBCO  Supplemental
Retirement Plan is fully consistent with CERBCO's compensation philosophy and is
a customary form of supplemental executive retirement similar to that adopted by
comparable companies.

         (c) Incentive Cash Bonuses. CERBCO has deferred the direct employ of an
incentive  cash  bonus  as part of the  compensation  package  of its  officers.
However, the Company believes that the compensation of its officers is typically
more directly linked to the overall profitability of the Company's operations as
a whole because each of the officers is employed by one or more subsidiary which
offers cash incentive bonuses. Insituform East and Capitol both employ an annual
return-on-equity  ("ROE")  incentive  cash bonus which is tied to the respective
subsidiaries'  earnings.  While all officers of Insituform  East are eligible to
receive an ROE bonus,  only the three  senior  officers  comprising  the CEOC of
Capitol were eligible to receive an ROE bonus from Capitol.  The Insituform East
ROE incentive bonus amount is calculated by multiplying Insituform East's annual
ROE  percentage  (net earnings  divided by weighted  average equity less current
earnings) by the base  compensation paid to the officer over the fiscal year. In
the case of Capitol,  a similar ROE formula  equity factor was used. The maximum
annual  individual  bonus  available  to any  officer  in either  subsidiary  is
normally limited to an upper cap of 30% of the officer's base  compensation used
in the  respective  ROE formula.  For the most recent fiscal year ended June 30,
1997,  due to negative net earnings,  no incentive  cash bonuses were awarded to
Insituform  East  officers.  At  Capitol,   where  the  annual  shareholder  ROE
percentage  for the fiscal year ended June 30, 1997 was  approximately  39%, the
Capitol  Board  awarded the CEOC  members both a regular ROE bonus at the capped
rate of 30% and a  discretionary,  supplemental  bonus of an additional  5%. The
Company's  Board concurred with the incentive bonus decisions made by Insituform
East and Capitol for fiscal year 1997.

COMPENSATION OF MEMBERS OF THE CEC

         On September  17, 1996,  the CERBCO Board  approved an increase in base
salary from  $10,816 to $11,140 per year,  effective  October 1, 1996,  for each
current member of the CEC,  namely,  Messrs.  George Erikson and Robert Erikson.
The decision  made by the CERBCO Board was  subjective,  taking into account the
philosophical  aim of setting  executive  compensation  and was not based on any
particular  performance criteria. As part of its analysis when it determined the
compensation  packages for Messrs.  George Erikson and Robert Erikson, the Board
reviewed the  compensation  they  received  from both  subsidiaries  in order to
ensure that their aggregate  compensation was reasonably apportioned in relation
to the time, duties and responsibilities among each of the three companies.

         At  Insituform  East,  the base  salary of Messrs.  George  Erikson and
Robert Erikson  increased to a rate of $210,298 per year,  effective  October 1,
1996,  from the base  salary  rate of  $204,173  per year.  Due to the  negative
earnings  results obtained by Insituform East for fiscal year 1997, no incentive
cash bonus was earned by either Mr. George Erikson or Mr. Robert Erikson.

         As to Capitol,  the base salary received by Messrs.  George Erikson and
Robert  Erikson  increased to a rate of $66,150 per year,  effective  October 1,
1996,  from the base  salary  rate of  $63,000  per year.  Moreover,  due to the
positive  earnings  results  obtained by Capitol for fiscal year 1997, an earned
incentive  cash bonus of 30%, based upon the ROE formula  previously  discussed,
and a  discretionary,  supplemental  bonus of 5%, in the total amount of $23,095
was earned by both Mr. George Erikson and Mr. Robert Erikson.

         As previously discussed,  in approving the compensation package for the
CEC members, the Board considered that Messrs. George Erikson and Robert Erikson
devote a predominate portion of their time and effort directly to the activities
of CERBCO's  operating  subsidiaries,  and that their work for CERBCO requires a
smaller  portion  of  their  time  and  effort.   The  Board  concurred  in  the
compensation paid to the members of the CEC by each such subsidiary and believes
the components of the aggregate  compensation paid to Messrs. George Erikson and
Robert  Erikson  by the  Company  and its  subsidiaries  provide a  compensation
package that fairly reflects the time and effort devoted by such officers to the
Company and each of its subsidiaries.

The Board of Directors

Robert W. Erikson
George Wm. Erikson
Webb C. Hayes, IV
Paul C. Kincheloe, Jr.

SUMMARY COMPENSATION

CERBCO is a parent holding company with  controlling  interests in two principal
subsidiaries,  Insituform East ("IEI") and, until June 30, 1997,  Capitol Office
Solutions  ("COS"  or  "Capitol").  CERBCO  officers  participate  also  in  the
management of these  subsidiaries.  The following  table sets forth  information
concerning the compensation paid to each of the named executive  officers of the
Company and/or its  subsidiaries  for the fiscal years ended June 30, 1997, 1996
and 1995:

<TABLE>
                           SUMMARY COMPENSATION TABLE
<CAPTION>
                                                                                            Long-Term Compensation
                                                                                     -----------------------------------
                                                       Annual Compensation                    Awards           Payouts
                                        -------------------------------------------  ---------------------   -----------
Name                                                          Other        Total     Restricted
and                                                          Annual       Annual        Stock    Options/       LTIP      All Other
Principal                              Salary      Bonus  Compensation Compensation    Awards      SARs        Payouts  Compensation
Position               Year              ($)        ($)      ($) 4/         ($)          ($)        (#)          ($)         ($)
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                  <C>   <C>      <C>        <C>          <C>        <C>             <C>        <C>           <C>     <C>      <C>
Robert W. Erikson    1997  CERBCO    $11,053        $ 0         $0       $11,053        $0             0         $0           $0
Director, President        IEI       208,649          0          0       208,649         0        15,000          0       11,247 5/
 & Treasurer 1/            COS        65,924     23,095          0        89,019         0             0          0            0
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $285,626    $23,095         $0      $308,721        $0        15,000         $0      $11,247
                                    =========  =========       ====    ==========      ====       ======        ====    ========

                     1996  CERBCO    $10,677         $0         $0       $10,677        $0             0         $0           $0
                           IEI       201,555     22,393          0       223,948         0        15,000          0        9,014
                           COS        62,784     22,812          0        85,596         0             0          0            0
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $275,016    $45,205         $0      $320,221        $0        15,000         $0       $9,014
                                    =========  =========        ===    ==========      ====       ======        ====     =======

                     1995  CERBCO    $10,412        $ 0         $0       $10,412        $0         1,500        $ 0           $0
                           IEI       196,555     31,457          0       228,012         0        15,000          0       10,118
                           COS        61,063     28,267          0        89,330         0             0          0        1,549
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $268,030    $59,724         $0      $327,754        $0        16,500         $0      $11,667
                                   ==========  =========       ====    ==========      ====       ======        ====    ========

George Wm. Erikson   1997  CERBCO    $11,053        $ 0         $0       $11,053        $0             0         $0           $0
Director, Chairman         IEI       208,649          0          0       208,649         0        15,000          0       11,613 5/
 & General Counsel 1/      COS        65,924     23,095          0        89,019         0             0          0            0
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $285,626    $23,095         $0      $308,721        $0        15,000         $0      $11,613
                                   ==========  =========       ====    ==========      ====       ======        ====    ========

                     1996  CERBCO   $ 10,677         $0         $0       $10,677        $0             0         $0           $0
                           IEI       201,555     22,393          0       223,948         0        15,000          0       11,264
                           COS        62,784     22,812          0        85,596         0             0          0            0
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $275,016    $45,205        $ 0      $320,221        $0        15,000         $0      $11,264
                                    =========  =========      =====    ==========      ====       ======        ====    ========

                     1995  CERBCO    $10,412         $0         $0       $10,412        $0         1,500         $0           $0
                           IEI       196,555     31,457          0       228,012         0        15,000          0       12,033
                           COS        61,063     28,267          0        89,330         0             0          0        1,549
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $268,030    $59,724        $ 0      $327,754        $0        16,500         $0      $13,582
                                   ==========  =========      =====    ==========      ====       ======        ====    ========

Robert F. Hartman    1997  CERBCO    $11,053         $0          0       $11,053        $0             0         $0           $0
Vice President,            IEI        88,808          0          0        88,808         0             0          0        8,010 5/
 Secretary &                        ---------      -----       ----     ---------      ----       ------        ----     -------
 Controller 2/                       $99,861        $ 0         $0       $99,861        $0             0         $0       $8,010
                                    =========      =====       ====     =========      ====       ======        ====     =======

                     1996  CERBCO    $10,677         $0         $0       $10,677        $0             0         $0           $0
                           IEI        85,891      9,542          0        95,433         0             0          0        6,666
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                     $96,568     $9,542         $0      $106,110        $0             0         $0       $6,666
                                     ========   ========       ====    ==========      ====       ======        ====     =======

                     1995  CERBCO    $10,412         $0         $0       $10,412        $0             0         $0           $0
                           IEI        83,664     13,390          0        97,054         0             0          0        5,754
                                    ---------   --------       ----    ----------      ----       ------        ----    --------
                                    $ 94,076    $13,390         $0      $107,466        $0             0         $0       $5,754
                                    =========  =========       ====    ==========      ====       ======        ====     =======

Armen A. Manoogian   1997  COS      $247,444    $86,605     $9,173       343,222        $0             0         $0       $7,500 6/
[Subsidiary                         =========  =========   =======       =======       ====       ======        ====      ======
  President, COS] 3/
                     1996  COS      $235,660    $85,545     $8,736      $329,941        $0             0         $0       $7,500
                                    =========  =========   =======      ========       ====       ======        ====      ======

                     1995  COS      $224,955   $105,962     $8,400      $339,317        $0             0         $0       $6,129
                                    ========= ==========   =======      ========       ====       ======        ====      ======

1/ The Company's Corporate Executive  Committee,  consisting of the Chairman and
the President,  exercises the duties and responsibilities of the Chief Executive
Officer of the Company. Information concerning Messrs. George Erikson and Robert
Erikson is provided  under the section  entitled,  "Proposal No. 1 - Election of
Directors."
2/ Mr. Robert Hartman,  age 50, has been Vice President and Controller of CERBCO
since  February  1988 and  Secretary  since  June  1991.  He has also  been Vice
President - Administration and Secretary of Insituform East,  Incorporated since
June 1991.  From October 1985 to February  1988,  Mr.  Hartman was Controller of
Dynamac  International,  Inc. From August 1979 to September  1985,  Mr.  Hartman
served in various capacities with CERBERONICS, Inc. including Vice President and
Treasurer.
3/ Capitol's Chief Executive Officer  Committee (the "CEOC"),  consisting of the
Chairman,  the  Vice  Chairman  and the  President,  exercised  the  duties  and
responsibilities of the Chief Executive Officer of Capitol. Mr. Armen Manoogian,
age 54, was  President  and a member of the CEOC of Capitol from October 1987 to
June  30,  1997.  Prior  to  joining  Capitol,  he  served  as  President  of  a
publicly-traded East Coast computer retailing organization. Mr. Manoogian served
on the Company's Board of Directors from October 1990 to April 1993.
4/ None of the named executive  officers received  perquisites or other personal
benefits  in excess of the  lesser of  $50,000  or 10% of his total  salary  and
bonus. The amounts reported represent payment for hours of leave in lieu of time
off.
5/ Insituform East contributions to the IEI Advantage Plan.
6/ Capitol contributions to the COS Profit Sharing Plan.
</TABLE>


COMPENSATION PURSUANT TO PLANS

CERBCO, Inc. Plans

CERBCO Supplemental Executive Retirement Plan

         During fiscal year 1994,  CERBCO  entered into  Supplemental  Executive
Retirement  Agreements with Messrs.  Robert  Erikson,  George Erikson and Robert
Hartman  pursuant  to a  Supplemental  Executive  Retirement  Plan (the  "CERBCO
Supplemental  Retirement  Plan").  The agreements provide for monthly retirement
benefits of 50% of the executive's  final  aggregate  monthly salary from CERBCO
and its subsidiaries as defined in and limited by the executives' agreement, for
Messrs.  Robert Erikson and George  Erikson.  In the case of Mr. Robert Hartman,
the agreement provides for 25% of the executive's final aggregate monthly salary
from CERBCO and its  subsidiaries  as defined in and limited by the  executive's
agreement.  Each covered  executive's benefit under the Plan is payable in equal
monthly amounts for the remainder of the covered  executive's  life beginning as
of any date on or after his 62nd birthday (at the covered executive's  election)
but  not  before  his   termination  of  service.   Payments  under  the  CERBCO
Supplemental  Retirement  Plan  are not  subject  to any  reduction  for  Social
Security or any other  offset  amounts but are  subject to Social  Security  and
other applicable tax withholding.

         To compute the monthly  retirement  benefits,  the  percentage of final
         monthly salary is multiplied by a ratio (not to exceed 1) of:

         the  completed  years of  employment  by CERBCO after 1992
         to
         the total number of years of employment after 1992 that the executive
         would have completed if he had continued in employment to age 65.

         If the executive dies prior to retirement,  the executive's beneficiary
will receive a  pre-retirement  death  benefit  under a  split-dollar  insurance
arrangement.  The  executive's  beneficiary  will  receive a  one-time  lump sum
payment in the amount of $1,400,000  (in the case of Messrs.  Robert  Erikson or
George  Erikson)  or  $700,000  (in the  case  of Mr.  Robert  Hartman).  If the
executive dies after  commencement  of the payment of retirement  benefits,  but
before receiving 180 monthly payments, the executive's beneficiary will continue
to receive  payments until the total payments  received by the executive  and/or
his beneficiary equal 180.

         The CERBCO Supplemental Retirement Plan is technically unfunded, except
as described  below.  CERBCO will pay all benefits from its general revenues and
assets.  To facilitate the payment of benefits and provide the executives with a
measure  of  benefit  security  without   subjecting  the  CERBCO   Supplemental
Retirement Plan to various rules under the Employee  Retirement  Income Security
Act of 1974,  CERBCO has  established  an irrevocable  trust (the "CERBCO,  Inc.
Supplemental  Executive  Retirement Trust Agreement").  This trust is subject to
the claims of CERBCO's  creditors in the event of bankruptcy or insolvency.  The
trust  has  purchased  life  insurance  on the lives of the  executive  officers
covered by the  Supplemental  Executive  Retirement  Agreements  to provide  for
CERBCO's  financial  obligations  under the Plan. Assets in the trust consist of
the cash  surrender  values of the  executive  life  insurance  policies and are
carried on CERBCO's balance sheet as assets.  The trust will not terminate until
participants  and  beneficiaries  are no longer  entitled to benefits  under the
plan. Upon  termination,  all assets  remaining in the trust will be returned to
CERBCO.

The  following  tables set forth the annual  retirement  benefits  that would be
received under the CERBCO Supplemental  Retirement Plan at various  compensation
levels after the specified years of service:

<TABLE>
               Pension Plan Table Where Formula Provides 50% of Compensation (1)

(Final)                          Years of Service (Under Plan)
                                 -----------------------------
<CAPTION>
Remuneration        15                20                25               30                35
- ------------        --                --                --               --                --

<S>             <C>              <C>               <C>               <C>              <C>        
$   125,000     $    58,594      $    62,500       $    62,500       $    62,500      $    62,500
$   150,000     $    70,313      $    75,000       $    75,000       $    75,000      $    75,000
$   175,000     $    82,031      $    87,500       $    87,500       $    87,500      $    87,500
$   200,000     $    93,750      $   100,000       $   100,000       $   100,000      $   100,000
$   225,000     $   105,469      $   112,500       $   112,500       $   112,500      $   112,500
$   250,000     $   117,188      $   125,000       $   125,000       $   125,000      $   125,000
$   300,000     $   140,625      $   150,000       $   150,000       $   150,000      $   150,000
$   350,000     $   154,627      $   175,000       $   175,000       $   175,000      $   175,000
$   400,000     $   154,627      $   182,101       $   200,000       $   200,000      $   200,000
$   450,000     $   154,627      $   182,101       $   201,055       $   221,961      $   225,000
$   500,000     $   154,627      $   182,101       $   201,055       $   221,961      $   245,085

(1) Assumes at the time the Plan was  established  (i) the individual is age 50,
(ii) maximum  covered  compensation  is $250,000 and is increased 2% (compounded
annually) each year of service after 1992, and (iii)  retirement is effective at
the beginning of the year.
</TABLE>

<TABLE>
               Pension Plan Table Where Formula Provides 25% of Compensation (2)

(Final)                            Years of Service (Under Plan)
                                   -----------------------------
<CAPTION>
Remuneration           15               20                25               30                35
- ------------           --               --                --               --                --

<S>               <C>               <C>              <C>               <C>              <C>      
$    50,000       $   8,929         $ 11,905         $  12,500         $  12,500        $  12,500
$    75,000       $  13,393         $ 17,858         $  18,750         $  18,750        $  18,750
$   100,000       $  17,858         $ 23,810         $  25,000         $  25,000        $  25,000
$   200,000       $  21,206         $ 31,218         $  36,190         $  39,957        $  44,115
$   300,000       $  21,206         $ 31,218         $  36,190         $  39,957        $  44,115
$   400,000       $  21,206         $ 31,218         $  36,190         $  39,957        $  44,115
$   500,000       $  21,206         $ 31,218         $  36,190         $  39,957        $  44,115

(2) Assumes at the time the Plan was  established  (i) the individual is age 45,
(ii) maximum  covered  compensation  is $90,000 and is increased 2%  (compounded
annually) each year of service after 1992, and (iii)  retirement is effective at
the beginning of the year.
</TABLE>

     Each  executive's  covered   compensation  under  the  CERBCO  Supplemental
Retirement  Plan  is  equal  to his  final  base  salary.  The  maximum  covered
compensation  for  Messrs.  Robert  Erikson  and  George  Erikson  is limited to
$250,000 annually ($20,834 per month),  increased 2% annually beginning in 1993.
The maximum  covered  compensation  for Mr. Robert Hartman is limited to $90,000
annually ($7,500 per month), increased 2% annually beginning in 1993.

     The  following  table  sets  forth  information  concerning  vested  annual
benefits  as of  June  30,  1997  for  the  executives  listed  in  the  Summary
Compensation Table covered by the CERBCO Supplemental Retirement Plan:
<TABLE>

<CAPTION>
                                         Years of Credited      Current Annual       Vested          Vested
Name                   Years of Service Service Under Plan   Covered Compensation  Percentage    Annual Benefit
- ----                   ---------------- ------------------   --------------------  ----------    --------------

<S>                            <C>               <C>            <C>                  <C>          <C>       
Robert W. Erikson              24                5              $   270,608          27.78%       $   37,584
George Wm. Erikson             21                5              $   270,608          33.33%       $   45,101
Robert F. Hartman              16                5              $    97,419          25.00%       $    6,089
</TABLE>


CERBCO 1986 Directors' Stock Option Plan

     CERBERONICS  adopted,  with stockholder approval at the 1986 Annual Meeting
of  Stockholders,  the  CERBERONICS,  Inc. 1986 Board of Directors' Stock Option
Plan (now  called  the  "CERBCO  Directors'  Plan").  The  purpose of the CERBCO
Directors'  Plan is to promote  the growth and general  prosperity  of CERBCO by
permitting  the Company,  through the granting of options to purchase  shares of
CERBCO's  Common  Stock,  to attract  and retain the best  available  persons as
members of CERBCO's  Board of Directors  with an  additional  incentive for such
persons to contribute to the success of the Company.  A maximum of 75,000 shares
of Common Stock may be made subject to options under the CERBCO Directors' Plan.
Options may be granted to directors of CERBCO or any of its  subsidiaries.  Each
option granted under the CERBCO  Directors'  Plan entitles each director to whom
such option is granted the right to purchase  shares of CERBCO's Common Stock at
a designated  option price,  any time and from time to time,  within three years
from the date of grant.

     The CERBCO Board of Directors  administers  the CERBCO  Directors' Plan and
has exclusive  authority to interpret,  construe and implement the provisions of
the CERBCO  Directors'  Plan,  except as may be delegated in whole or in part by
the Board to a committee of the Board which may consist of three or more members
of the Board. No such delegation of authority has been made. Each determination,
interpretation  or  other  action  that  may be  taken  pursuant  to the  CERBCO
Directors'  Plan by the  Board is  final  and  binding  and  conclusive  for all
purposes and upon all persons.  The Board from time to time may amend the CERBCO
Directors' Plan as it deems necessary to carry out the purposes thereof.

     The terms of the CERBCO  Directors' Plan contemplated that each director of
the  Company be  granted an option to  purchase  1,500  shares of the  Company's
Common  Stock each year for five  years,  for a total of 7,500  shares of Common
Stock per director,  beginning in fiscal year 1986. On June 28, 1986, options on
1,500  shares  of  Common  Stock  were  granted  to each of the six  CERBERONICS
directors then in office. No additional  options were granted until December 19,
1991. On December 19, 1991, the CERBCO Directors' Plan was amended by the CERBCO
Board of  Directors  to ensure  its  original  purpose  by  granting  options to
purchase  1,500  shares of Common  Stock to CERBCO  directors in fiscal 1992 and
subsequent  years,  so that  each  director  serving  on the date of grant  will
receive  options for a total  amount of 7,500  shares  over a five year  period.
Messrs.  Robert  Erikson and George  Erikson,  being the only current  directors
having  received  options in 1986,  each received  options for a total amount of
6,000 shares over a four year period, from 1992 through 1995. Messrs.  Kincheloe
and Hayes each  received  options  for a total of 7,500  shares over a five-year
period,  from 1992  through 1996 and thus,  each  current  director has received
options for a total of 7,500 shares.  No further  grants are  anticipated  under
this plan.  Options on a total of 9,000  shares  available  under this plan were
exercised by directors of the Company during fiscal year 1997.

Insituform East, Incorporated Plans

Insituform East Employee Advantage Plan

     As executive  officers of Insituform East, Messrs.  Robert Erikson,  George
Erikson and Robert  Hartman  participate in the  Insituform  East,  Incorporated
Employee  Advantage Plan (the "IEI Advantage Plan"). The IEI Advantage Plan is a
noncontributory  profit  sharing  (retirement)  plan in which all  employees not
covered by a collective  bargaining  agreement and employed with Insituform East
for at least one year are eligible to  participate.  No employee is covered by a
collective bargaining  agreement.  The IEI Advantage Plan is administered by the
Insituform East Board of Directors  which  determines,  at its  discretion,  the
amount of Insituform  East's annual  contribution.  The Insituform East Board of
Directors can authorize a contribution,  on behalf of Insituform  East, of up to
15% of the  compensation  paid to  participating  employees during the year. The
plan  is  integrated  with  Social  Security.  Each  participating  employee  is
allocated a portion of  Insituform  East's  contribution  based on the amount of
that employee's compensation plus compensation above FICA limits relative to the
total  compensation paid to all participating  employees plus total compensation
above FICA limits.  Amounts allocated under the IEI Advantage Plan begin to vest
after three years of service (at which time 20% of the contribution  paid vests)
and are fully vested after seven years of service.

     During fiscal year 1997,  Insituform  East  contributed  an amount equal to
4.0% of the total compensation paid to all participating employees.
<TABLE>

<CAPTION>
Names and Capacities in Which                         Contributions for          Vested Percent
Cash Contributions Were Made                         Fiscal Year 1997 1/         as of 10/23/97
- -----------------------------                        -------------------         --------------
<S>                                                        <C>                        <C> 
George Wm. Erikson, Chairman                               $11,247                    100%
Robert W. Erikson, President                               $11,247                    100%
Robert F. Hartman, Vice
  President - Administration & Secretary                   $ 6,351                     80%
Executive Officers of Insituform East as a Group,
  (6 persons, including those named above)                 $57,128                     N/A

1/   Total  contributions  to employees of $276,123  include  Insituform  East's
     contribution of $212,409 and reallocated amounts totaling $63,714 forfeited
     by former  participants  who terminated  employment  with  Insituform  East
     during fiscal year 1997.
</TABLE>

     The IEI Advantage  Plan also  includes a salary  reduction  profit  sharing
feature under Section 401(k) of the Internal  Revenue Code. Each participant may
elect to defer a portion of his  compensation by any whole percentage from 2% to
16% subject to certain limitations.  During fiscal year 1997, as mandated by the
plan, Insituform East contributed an employer matching contribution equal to 25%
of the  participant's  deferred  compensation  up to a  maximum  of  1.5% of the
participant's total paid compensation for the fiscal year. Participants are 100%
vested at all times in their deferral and employer matching accounts.
<TABLE>

<CAPTION>
Names and Capacities in Which                         Contributions for          Vested Percent
Cash Contributions Were Made                          Fiscal Year 1997           as of 10/23/97
- ----------------------------                          ----------------           --------------

<S>                                                         <C>                       <C> 
George Wm. Erikson, Chairman                                $  366                    100%
Robert W. Erikson, President                                $    0                    100%
Robert F. Hartman, Vice
  President - Administration & Secretary                    $1,659                    100%
Executive Officers of Insituform East as a Group,
  (6 persons, including those named above)                  $6,350                     N/A
</TABLE>

Insituform East 1994 Board of Directors' Stock Option Plan

     Insituform  East  adopted,  with  stockholder  approval  at the 1994 Annual
Meeting  of  Stockholders,  the  Insituform  East,  Incorporated  1994  Board of
Directors'  Stock Option Plan (the "IEI 1994 Directors'  Plan").  The purpose of
this plan is to promote the growth and general  prosperity of Insituform East by
permitting  Insituform East,  through the granting of options to purchase shares
of its Common Stock, to attract and retain the best available persons as members
of Insituform  East's Board of Directors  with an additional  incentive for such
persons to contribute to the success of Insituform East. The IEI 1994 Directors'
Plan is  administered  and options are granted by the  Insituform  East Board of
Directors.  As directors of Insituform East,  Messrs.  Robert Erikson and George
Erikson participate in this plan.

     Each grant of options under the IEI 1994  Directors' Plan will entitle each
Insituform  East director to whom such options are granted the right to purchase
15,000  shares of Insituform  East's Common Stock at a designated  option price,
any time and  from  time to time,  within  five  years  from the date of  grant.
Options are granted  under the IEI  Directors'  Plan each year for five years to
each member of the Board of Directors of Insituform  East serving as such on the
date of grant,  i.e., for each director  serving for five years, a total of five
options  covering in the  aggregate  75,000  shares of Common Stock  (subject to
adjustments  upon changes in the capital  structure of  Insituform  East) over a
five  year  period.  Under  the  terms of this  plan,  up to  525,000  shares of
Insituform  East's  Common  Stock  have  been  reserved  for  the  directors  of
Insituform East.

     On December 13, 1996,  options on a total of 105,000  shares of  Insituform
East's  Common Stock were granted to directors of  Insituform  East  (options on
15,000 shares to each of seven directors,  including Messrs.  Robert Erikson and
George  Erikson) at a per share  option  price of $2.625.  No options  available
under this plan were  exercised by directors of  Insituform  East during  fiscal
year 1997.

Insituform East 1989 Board of Directors' Stock Option Plan

     Insituform  East  adopted,  with  stockholder  approval  at the 1989 Annual
Meeting  of  Stockholders,  the  Insituform  East,  Incorporated  1989  Board of
Directors  Stock Option Plan (the "IEI 1989  Directors'  Plan").  The purpose of
this plan is the same as the IEI 1994  Directors'  Plan. The term of the plan is
for ten years, unless terminated sooner by the Board of Directors.  Options were
first  granted to directors on December 1, 1989 and each of the four  succeeding
Board of Directors  meetings  following the Annual  Meetings of  Stockholders in
1990,  1991,  1992 and 1993.  Each grant of options under the plan entitles each
director to whom such options were granted the right to purchase  15,000  shares
of  Insituform  East's Common Stock at a designated  option price,  any time and
from time to time, within five years from the date of grant. Although no further
options  are  anticipated  to be granted  under this  plan,  options  previously
granted,  and which have not already been  exercised or expired,  will remain in
effect until exercise or expiration, whichever comes first. No options available
under the plan were exercised by directors of Insituform East during fiscal year
1996.  Under the terms of this plan,  up to 120,000  shares of  Insituform  East
Common Stock remain reserved for the directors of Insituform East.

OPTION/SAR GRANTS

     No option or Stock  Appreciation Right grants were made to any of the named
executive  officers during fiscal year 1997 under the CERBCO  Directors' Plan or
the IEI 1989  Directors'  Plan.  The  following  table  sets  forth  information
concerning options granted to each of the named executive officers during fiscal
year 1997 under the IEI 1994 Directors' Plan:
<TABLE>

                      OPTION/SAR GRANTS IN LAST FISCAL YEAR
<CAPTION>
                                                                                         Potential Realized Value
                                                                                          at Assumed Annual Rates
                                                                                        of Stock Price Appreciation
                                         Individual Grants                                     for Option Term
                         ----------------------------------------------                 ----------------------------
                                           % of Total
                                            Options/
                           Option/        SARs Granted       Exercise
                            SARs          to Employees        or Base       Expiration
Name                     Granted(#)      in Fiscal Year      ($/Share)         Date          5% ($)      10%($)
- ----                     ----------      --------------      ---------         ----          ------      ------

Robert W. Erikson
<S>                        <C>                 <C>            <C>             <C>   <C>     <C>          <C>    
  IEI 1994 Directors' Plan 15,000              14%            $2.625          12/13/01      $10,875      $24,045

George Wm. Erikson
  IEI 1994 Directors' Plan 15,000              14%            $2.625          12/13/01      $10,875      $24,045
</TABLE>


AGGREGATED OPTION/SAR EXERCISES AND FISCAL YEAR-END OPTION/SAR VALUE

         No option or Stock Appreciation Right grants made under the IEI 1989 or
1994  Directors'  Plans to any of the named  executive  officers were  exercised
during fiscal year 1997.  During fiscal year 1997,  Messrs.  Robert  Erikson and
George Erikson each exercised  options to purchase 3,000 shares of CERBCO Common
Stock granted under the CERBCO  Directors'  Plan. The following table sets forth
information concerning option or Stock Appreciation Right grants held by each of
the named executive officers under all plans as of June 30, 1997:

<TABLE>
AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR AND FY-END OPTION/SAR VALUES

<CAPTION>
                                                                                             Value of
                                                           Number of Unexercised       Unexercised in the Money
                              Shares                     Options/SARs at FY-End(#)     Options/SARs at FY-End($)
                            Acquired on      Value
Name                        Exercise(#)  Realized ($)  Exercisable   Unexercisable   Exercisable    Unexercisable
- ----                        -----------  ------------  -----------   -------------   -----------    -------------

Robert W. Erikson
<S>                            <C>        <C>                <C>          <C>         <C>                 <C>
  CERBCO Directors' Plan       3,000      $  12,563          0            0           $       0           $0
  IEI 1994 Directors' Plan         0      $       0     45,000            0           $       0           $0
  IEI 1989 Directors' Plan         0      $       0     30,000            0           $     938           $0

George Wm. Erikson
  CERBCO Directors' Plan       3,000      $  12,563          0            0           $       0           $0
  IEI 1994 Directors' Plan         0      $       0     45,000            0           $       0           $0
  IEI 1989 Directors' Plan         0      $       0     30,000            0           $     938           $0
</TABLE>

REPRICING OF OPTIONS/SARs

         Neither  the  Company  nor its  subsidiaries  adjusted  or amended  the
exercise price of stock options or SARs  previously  awarded to any of the named
executive officers during fiscal year 1997.

LONG-TERM INCENTIVE PLAN AWARDS

         Neither  the Company nor its  subsidiaries  have a long-term  incentive
plan.

DEFINED BENEFIT OR ACTUARIAL PLANS

         The  Company  maintains  a  defined  benefit  plan  called  the  CERBCO
Supplemental  Retirement Plan to provide annual  retirement  benefits to covered
executives.   See  "Compensation   Pursuant  to  Plans  -  CERBCO,  Inc.  Plans,
Supplemental  Executive  Retirement  Plan" as to the basis upon  which  benefits
under the Plan are computed.

EMPLOYMENT CONTRACTS AND TERMINATION OF EMPLOYMENT AND CHANGE-IN-CONTROL
ARRANGEMENTS

         There  are  no  employment   contracts   between  the  Company  or  its
subsidiaries and any named executive officer.  There are no arrangements between
the Company or its  subsidiaries  and any named executive  officer,  or payments
made  to  an  executive  officer,  that  resulted,  or  will  result,  from  the
resignation,  retirement or other  termination of employment with the Company or
its subsidiaries, in an amount that exceeds $100,000.

COMPENSATION OF DIRECTORS

         Until December 31, 1996, each  non-officer  director of the Company was
paid an  annual  fee of  $3,000  and an  attendance  fee of $500  for  Board  of
Directors  meetings where he attended in person and $100 if he  participated  by
telephone. The annual fee was increased to $5,000, and attendance fees to $1,000
and $200, respectively,  effective as of January 1, 1997. Directors who are also
officers of the Company do not receive  separate  fees for service as directors,
but  are  eligible  with  all  other  directors  to  participate  in the  CERBCO
Directors'  Stock  Option  Plan,  as  described  under  the  section   entitled,
"Compensation  Pursuant to Plans." All  directors of the Company are  reimbursed
for Company travel-related expenses.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

         The  Company's   Board  of  Directors  does  not  have  a  compensation
committee; the Board of Directors as a whole serves in that equivalent capacity.
Messrs.  George  Erikson  and  Robert  Erikson,  both  members  of the  Board of
Directors and executive officers of the Company, holding the offices of Chairman
& General Counsel and President & Treasurer,  respectively,  participated during
fiscal year 1997 in deliberations of the Board of Directors concerning executive
officer compensation.

         Messrs. George Erikson and Robert Erikson are both members of the Board
of Directors and executive officers of Insituform East and, until June 30, 1997,
were both members of the Board of Directors  and  executive  officers of Capitol
Office  Solutions.   In  their  capacities  as  directors  of  these  subsidiary
companies,  they  participated in deliberations of the respective  subsidiaries'
Boards of Directors concerning executive officer compensation.

PERFORMANCE GRAPH

         The  following  graph  compares  the  total  stockholder  return on the
Company's  Common  Stock to the Total  Return  Index for the NASDAQ Stock Market
(U.S.  Companies) and to a Peer Group Index based on NASDAQ Stocks SIC Code 162,
"Heavy  Construction,  Except  Highway,"  and SIC Code  504,  "Professional  and
Commercial Equipment," for the last five fiscal years.

<TABLE>
<CAPTION>
  Date     Company   Market    Market    Peer     Peer
           Index     Index     Count    Index    Count
<S>        <C>       <C>        <C>    <C>         <C>
06/28/91   100.000   100.000    3893   100.000     31
07/31/91   118.182   105.920    3891   110.508     32
08/30/91   103.030   111.187    3904   117.158     32
09/30/91   133.333   111.595    3908   131.148     33
10/31/91   109.091   115.284    3920   145.376     32
11/29/91   118.182   111.414    3932   138.274     30
12/31/91   127.273   125.025    3940   147.043     28
01/31/92   127.273   132.336    3953   160.022     28
02/28/92   127.273   135.334    3957   179.452     27
03/31/92   112.121   128.947    3969   166.811     27
04/30/92    96.970   123.417    3968   153.858     28
05/29/92   103.030   125.019    3956   157.514     28
06/30/92    96.970   120.132    3936   148.406     28
07/31/92   100.000   124.388    3900   142.795     28
08/31/92   112.121   120.585    3881   131.351     30
09/30/92   112.121   125.067    3879   141.032     31
10/30/92   112.121   129.994    3891   150.020     31
11/30/92   169.697   140.337    3907   169.868     32
12/31/92   151.515   145.503    3931   174.855     35
01/29/93   145.455   149.644    3919   183.012     36
02/26/93   151.515   144.062    3950   177.163     37
03/31/93   142.424   148.232    3974   172.210     36
04/30/93   130.303   141.905    4008   161.049     36
05/28/93    96.970   150.382    4036   167.519     37
06/30/93    93.939   151.077    4072   162.609     39
07/30/93    84.848   151.256    4104   166.370     42
08/31/93   106.061   159.074    4139   174.493     43
09/30/93   100.000   163.811    4174   177.879     44
10/29/93   103.030   167.493    4222   186.006     43
11/30/93   175.758   162.497    4305   179.273     43
12/31/93   193.939   167.027    4377   185.669     43
01/31/94   157.576   172.097    4401   187.706     44
02/28/94   184.849   170.488    4440   194.448     44
03/31/94   200.000   160.002    4492   176.502     46
04/29/94   181.818   157.926    4521   171.278     46
05/31/94   166.667   158.312    4563   173.216     47
06/30/94   154.545   152.522    4576   151.159     47
07/29/94   148.485   155.650    4594   153.526     47
08/31/94   136.364   165.573    4612   157.341     50
09/30/94   169.697   165.150    4615   155.890     49
10/31/94   172.727   168.396    4637   157.472     51
11/30/94   218.182   162.810    4653   152.418     51
12/30/94   236.364   163.267    4658   151.755     52
01/31/95   209.091   164.183    4648   158.010     57
02/28/95   239.394   172.865    4650   157.114     57
03/31/95   218.182   177.987    4644   166.048     57
04/28/95   206.061   183.591    4655   169.223     55
05/31/95   230.303   188.329    4653   173.284     54
06/30/95   236.364   203.589    4670   183.618     54
07/31/95   266.667   218.551    4689   195.815     53
08/31/95   309.091   222.974    4712   201.497     51
09/29/95   345.455   228.103    4708   210.043     49
10/31/95   321.212   226.800    4745   197.433     50
11/30/95   351.515   232.119    4777   200.858     49
12/29/95   327.273   230.876    4817   214.164     48
01/31/96   327.273   232.006    4807   210.218     48
02/29/96   306.061   240.850    4837   221.914     48
03/29/96   303.030   241.646    4876   219.403     50
04/30/96   303.030   261.688    4920   253.453     50
05/31/96   375.758   273.746    4976   273.604     54
06/28/96   341.955   261.403    5029   226.874     54
</TABLE>


            PROPOSAL NO. 2 - APPROVAL OF THE 1997 BOARD OF DIRECTORS
                                STOCK OPTION PLAN

         The CERBCO,  Inc. 1997 Board of Directors' Stock Option Plan (the "1997
Directors'  Plan") was adopted by the Board of Directors on September  16, 1997,
subject to approval by the stockholders. The purpose of the 1997 Directors' Plan
is to promote the growth and general prosperity of the Company by permitting the
Company, through the granting of options to purchase shares of its Common Stock,
to attract  and retain the best  available  persons as members of the  Company's
Board of Directors  with an additional  incentive for such persons to contribute
to the success of the Company.  The plan is non-qualified for federal income tax
purposes and only members of the Board of Directors  would be entitled to grants
of options  thereunder.  The Board is  submitting  the plan for  approval by the
stockholders at the Meeting.  It is intended that the  individuals  named in the
enclosed  form of Proxy will vote their  proxies  to  approve  the plan,  unless
otherwise directed. A majority of the votes cast by both Common stockholders and
Class B Common stockholders,  voting together, will be required for the approval
of the plan.

         The following is a summary of the 1997  Directors'  Plan, and reference
should be made to the full text of the plan contained in Appendix A.

         General.  A maximum  of  125,000  shares  of  Common  Stock may be made
subject  to  options  under the plan,  subject to  adjustments  upon  changes in
capital  structure of the  Company.  Options may only be granted to directors of
the Company.  Each option  granted  under the plan will entitle each director to
whom such option is granted the right to purchase  5,000 shares of the Company's
Common Stock  (subject to  adjustment  upon changes in capital  structure of the
Company) at a designated option price (the "Option Price"), at any time and from
time to time,  within  five  years  from the date of  grant;  provided  that the
director serves continually as a director of the Company for at least six months
following  the date the option was  granted.  If the four  nominees  named under
Proposal No. 1 of this Proxy  statement are elected as directors,  they would be
eligible,  in consideration for serving as directors of the Company,  to receive
in 1997 grants of options  entitling  each such director to purchase at any time
until  December  19,  2002 up to 5,000  shares  of the  Company's  Common  Stock
(subject to  adjustment  for any change in capital  structure of the Company) at
the Option Price  determined on December 19, 1997. Two of such nominees,  George
Wm. Erikson and Robert W. Erikson,  are current executive officers,  and Messrs.
Hayes and Kincheloe are current directors who are not executive officers;  thus,
if all  nominees  are  elected,  options for a total of 10,000  shares of Common
Stock would be granted to current executive  officers as a group and options for
a total of 10,000  shares of Common  Stock  would be granted to the two  current
directors who are not executive officers.

         Administration.  The  Board  of  Directors  shall  administer  the 1997
Directors'  Plan and shall have exclusive  authority to interpret,  construe and
implement the provisions of the plan,  except as may be delegated in whole or in
part by the Board to a  committee  of the Board (the  "Committee")  which  shall
consist of two or more members of the Board. Each determination,  interpretation
or other action that may be taken pursuant to the plan by the Board or Committee
shall be final and shall be binding and conclusive for all purposes and upon all
persons. The Board from time to time may amend the plan as it deems necessary to
carry out the purposes thereof, provided,  however, that no change shall be made
that  increases  the total number of shares  reserved for issuance or materially
modifies  the   provisions  of  the  plan  with  respect  to   eligibility   for
participation unless such change is authorized by the stockholders.

         Terms and Conditions of Options.  Each director granted an option under
the 1997  Directors'  Plan shall enter into a separate  written  agreement  (the
"Option  Agreement") with the Company covering each such option granted, in such
form and containing such terms and conditions as are not  inconsistent  with the
plan,  as the Board or the  Committee  shall from time to time  determine.  Each
option granted under the plan and pursuant to each Option Agreement will entitle
each director to whom such option is granted the right to purchase  5,000 shares
of the Company's  Common Stock  (subject to  adjustment  upon changes in capital
structure of the Company) at the Option  Price,  any time and from time to time,
within five (5) years from the date of grant;  provided that the director serves
continually  as a director of the Company for at least six months  following the
date the option was granted. Options will be granted under the plan each year to
each member of the Board of Directors of the Company serving as such on the date
of grant. To the extent the 1997 Directors' Plan is approved by the stockholders
at the Annual  Meeting of  Stockholders  on December 19, 1997,  the first option
grant will be made on the date of such annual  meeting and the Option Price with
respect to such option shall be as of the date of such annual  meeting.  Each of
the succeeding  grants will be made by the Board on the date of each  succeeding
Annual  Meeting of  Stockholders  and the Option  Price shall be  determined  in
accordance with the plan's provisions by the Board as of each respective date. A
director may exercise an option only if he has served  continually as a director
of the Company or its  successor  company for at least six months  following the
date of the grant.

         Federal Income Tax Consequences. The options granted under the plan are
not eligible for the special tax  treatment  afforded  incentive  stock  options
under the Internal  Revenue  Code.  Under  existing  federal  income tax law and
regulations, an optionee will not recognize taxable income, and the Company will
not be entitled to a deduction,  upon the grant of a non-statutory stock option.
Upon exercise of such an option,  an optionee will recognize  ordinary income in
an amount  equal to the amount by which the fair  market  value of each share on
the date of  exercise  exceeds the Option  Price.  The amount so  recognized  as
income by the optionee generally will be deductible by the Company.

         The   foregoing   summary   of  the   principal   federal   income  tax
considerations  applicable to  non-statutory  stock options does not include all
aspects  of  federal  income  tax law  which  may be  relevant  to a  particular
director. The federal income tax laws, the regulations or interpretations by the
Internal  Revenue  Service or the courts could be changed after the date of this
Proxy Statement. The effect might be to change some or all of the federal income
tax consequences  pertaining to the plan described in this Proxy  Statement.  In
addition,  the receipt of a grant under the plan, the exercise of a grant or the
sale of stock acquired upon exercise may create tax liabilities for the optionee
under the laws of any state or other taxing jurisdiction.  No attempt is made in
this Proxy Statement to summarize these tax consequences.

                          TRANSACTIONS WITH MANAGEMENT

         Pursuant to authorizations  by the Board of Directors,  the Company has
made certain  advancements to Mr. George Erikson,  Director,  Chairman & General
Counsel, and certain advancements to Mr. Robert Erikson,  Director,  President &
Treasurer (together the "Eriksons") for their respective legal fees and expenses
which  each has  incurred,  and may  incur in the  future,  for  personal  legal
representation  in connection with the stockholder  lawsuit filed in August 1990
challenging  a  proposed  but  unconsummated  transaction  between  each  of the
Eriksons and  Insituform  Technologies,  Inc.  (see sections  entitled,  "Voting
Securities and Principal Holders Thereof" and "Legal Proceedings" below).

         As of November 10,  1997,  pursuant to such Board  authorizations,  the
Company has advanced and expensed in total  $592,854 to Mr.  George  Erikson and
has advanced and expensed in total $592,854 to Mr. Robert Erikson.

         Pending  a final  outcome  of these  legal  proceedings,  the  Board of
Directors has deferred consideration or ultimate determination of entitlement of
Mr. George Erikson and/or Mr. Robert Erikson to  indemnification  by the Company
for their legal fees and expenses.  If it is ultimately  determined by the Board
of Directors or otherwise in accordance with Section 145 of Delaware Corporation
Law that Mr.  George  Erikson  and/or Mr.  Robert  Erikson  are not  entitled to
indemnification  for any such  legal  fees and  expenses  under  Section  145 of
Delaware  Corporation  Law,  such  advances  shall be  reimbursed  by Mr. George
Erikson and/or Mr. Robert  Erikson to the Company  pursuant to an agreement with
the  Company  executed by each of the  Eriksons  and  delivered  to the Board of
Directors.

                 VOTING SECURITIES AND PRINCIPAL HOLDERS THEREOF

         As  previously  reported  by  the  Company,  on  March  12,  1990,  the
controlling  stockholders  of the  Company,  Messrs.  George  Erikson and Robert
Erikson (together, the "Eriksons"), executed a letter of intent and subsequently
executed four amendments thereto (collectively referred to herein as the "Letter
of Intent") with Insituform  Technologies,  Inc. ("ITI") (formerly Insituform of
North America,  Inc. or "INA") to effect a sale of their controlling interest in
the Company to ITI for  $6,000,000  (the "Proposed  Transaction").  The Proposed
Transaction,  had it been  consummated,  would have had the effect of making ITI
the  controlling  stockholder  of the Company  and,  indirectly,  of each of the
Company's three direct  subsidiaries at the time,  Insituform East, Capitol Copy
and  CERBERONICS.  On September 19, 1990,  however,  the Company  issued a press
release announcing that the Eriksons had informed the Company that the Letter of
Intent had expired without consummation of any transaction, that it would not be
further  extended,  that  negotiations  had ceased and that the  Eriksons had no
further intention at the time of pursuing the proposed sale of their controlling
interest in the Company to ITI.

                                LEGAL PROCEEDINGS

         The only material  pending legal  proceedings to which the Company is a
party or any such legal  proceedings  contemplated of which the Company is aware
are (a) a previously  disclosed lawsuit in the Court of Chancery of the State of
Delaware currently on appeal, and (b) a previously  disclosed lawsuit pending in
the Superior Court of the District of Columbia.

         (a)  As  previously  reported  by  the  Company,  in  March  1990,  the
controlling  stockholders of the Company,  Messrs. George Wm. Erikson and Robert
W.  Erikson  (together,  the  "Eriksons"),  executed  a  letter  of  intent  and
subsequently executed four amendments thereto  (collectively  referred to herein
as the "Letter of Intent") with Insituform Technologies,  Inc. ("ITI") to effect
a sale of their  controlling  interest in the Company to ITI for $6,000,000 (the
"Proposed Transaction").  The Proposed Transaction,  if consummated,  would have
had the effect of making ITI the  controlling  stockholder of the Company,  and,
indirectly,  of each of the  Company's  three direct  subsidiaries  at the time,
Insituform  East,  Capitol,  and  CERBERONICS.  In September  1990, the Eriksons
informed the Company that the Letter of Intent had expired without  consummation
of any transaction, that it would not be further extended, that negotiations had
ceased,  and that the Eriksons had no further  intention at the time of pursuing
the proposed sale of their controlling interest in the Company to ITI.

         In August  1990,  a complaint  against the Company and the Eriksons was
filed in the  Delaware  Court of  Chancery  (the  "Delaware  Complaint")  by two
stockholders of the Company,  on their own behalf and  derivatively on behalf of
the Company,  which sought (i) damages  against the  individual  defendants  for
alleged  breach  of  fiduciary  duties in an  amount  not less than  $6,000,000,
together with interest  thereon from March 12, 1990; (ii) to permanently  enjoin
the Eriksons from  completing any  transaction  with ITI similar in substance to
the Proposed  Transaction;  (iii) a  declaration  of the  invalidity of the 1982
authorization  for and  issuance of the  Company's  Class B Common  Stock,  and,
therefore,  of the  entitlement  of holders of Class B Common Stock to elect any
members of the Company's Board; (iv) a declaration of the invalidity of the 1990
election of the Company's directors and the issuance of new proxy materials that
fully and fairly disclose all facts which  plaintiffs  claim are material to the
election of such  directors;  (v) an award to the  plaintiffs  of their costs of
bringing the action,  including reasonable attorneys' fees; and (vi) an award to
plaintiffs of such further relief as the Court of Chancery  deemed  appropriate.
In addition,  the Complaint  asserted a claim against the individual  defendants
alleging that the Company had forgone a corporate  opportunity  by the continued
failure to pursue a transaction with ITI.

         All but one of the plaintiffs' claims subsequently were dismissed.  The
claim remaining in the litigation was  plaintiffs'  allegation that the Proposed
Transaction  was an  opportunity  belonging to the Company and that the Eriksons
breached  their duty to the  Company  by  precluding  the  Company  from  taking
advantage of that opportunity so that the Eriksons might have a chance to do so.
Trial in this matter was held beginning February 21, 1995.

         Following  a trial,  Chancellor  Allen  issued an  opinion on August 9,
1995, in which he ruled in favor of the  Eriksons.  The court  determined  that,
while the Eriksons failed in certain  limited  respects to meet the standards of
loyalty  required of them under  Delaware  corporate law, that  "deviation  from
proper corporate  practice"  neither caused injury to CERBCO nor resulted in any
substantial  gain to the  Eriksons.  The Court also found that the  Eriksons met
their burden of showing that their conduct was "wholly fair to the corporation."
The Court  denied in toto the  plaintiffs'  request for legal fees and  expenses
totaling  $1,513,499.  The Court  concluded  that the  litigation  conferred  no
substantial  benefit on  CERBCO,  so that it would be  inappropriate  to require
CERBCO and its stockholders to share the costs that plaintiffs incurred.

         The plaintiffs  appealed to the Delaware  Supreme  Court.  On April 10,
1996, the Supreme Court ruled that "[t]he  Eriksons were entitled to profit from
their  control  premium  and to that end  compete  with  CERBCO  but only  after
informing CERBCO of the  opportunity"  for a transaction with ITI.  Although the
Eriksons were deemed to have breached  their duty of loyalty,  the Supreme Court
affirmed  the  finding  of the  Court  of  Chancery  that  there  was no  viable
transaction  that could take place between  CERBCO and ITI,  given the Eriksons'
ability  to veto such a  transaction  as  controlling  shareholders  of  CERBCO.
Therefore,  no damages could be awarded for the loss of a transaction that had a
"zero probability of occurring due to the lawful exercise of statutory  rights."
The Supreme Court did rule, however, that the Eriksons were liable to CERBCO for
$75,000  they  received  from  ITI for  extending  the  Letter  of  Intent  (the
"Extension  Fee"),  and had to  reimburse  the  expenses,  if any,  that  CERBCO
"incurred to accommodate the Eriksons'  pursuit of their own interests" prior to
the  abandonment  of the  proposed  transaction  with  ITI.  The  Supreme  Court
concluded that the Chancery Court's opinion was therefore  "affirmed in part and
reversed in part,  and this  matter is  remanded  to the Court of  Chancery  for
further  determination of damages.  Once those damages are fixed, the [Chancery]
court should  proceed to examine anew any petition for counsel fees on behalf of
the  plaintiffs." The Eriksons filed motions for reargument and for rehearing en
banc, which the Supreme Court denied.

         The plaintiffs  filed a motion for  post-remand  relief in the Court of
Chancery,  seeking (i) a "disgorgement  of benefits"  allegedly  received by the
Eriksons in the aggregate amount of $451,000;  (ii) "damages attributable to the
Eriksons'  breach of  fiduciary  duty" in an  aggregate  amount  of almost  $1.4
million;  and (iii) certain  injunctive relief against the Eriksons with respect
to "any further  negotiations  with ITI  respecting  ITI's interest in obtaining
control of [Insituform East]."

         On  September  13, 1996,  the Court of Chancery  issued its decision on
remand.  The Court  ruled that the  Eriksons  were  obligated  to pay CERBCO the
principal amount of $188,200, plus interest, representing legal fees paid to the
law firm of Morgan,  Lewis & Bockius as counsel for the special committee of the
CERBCO Board of Directors  that was  appointed  in 1990 in  connection  with the
Proposed  Transaction.  The Court of Chancery  also ruled that the Eriksons were
obligated to pay CERBCO interest on the $75,000  Extension Fee the Supreme Court
had ordered the Eriksons to pay to CERBCO.  All of the plaintiffs'  other claims
were  rejected,  except  that the  Court  ruled it was  premature  to  determine
plaintiffs'  claim that the Eriksons  were  obligated  to  reimburse  CERBCO for
advances to them of the defense costs of the litigation. On October 2, 1996, the
plaintiffs  filed a  petition  seeking  attorneys'  fees and  expenses  totaling
$1,663,266. On February 6, 1997, the Court of Chancery entered a final order and
judgment  (revised on February  14,  1997)  encompassing  the above  rulings and
awarding the plaintiffs  attorneys' fees of $143,364.23 to be paid by CERBCO and
court  costs  of  $9,359.20  to be paid by the  Eriksons.  The  plaintiffs,  the
Eriksons,  and CERBCO have each appealed to the Delaware Supreme Court where the
appeals  were  briefed  and,  subsequently,  oral  arguments  were  presented on
September 9, 1997.  The Delaware  Supreme Court  currently has the appeals under
consideration.

         (b) As previously  reported by the Company, in January 1993, a separate
lawsuit  against the partners in the law firm of Rogers & Wells and the Company,
arising out of the subject matter of the Delaware  litigation,  was filed in the
Superior  Court  of  the  District  of  Columbia  (the  "D.C.  Complaint").  The
plaintiffs are the same two stockholders,  and a former director of the Company,
and have  alleged  that Rogers & Wells  breached its duty of loyalty and care to
the Company by representing  allegedly  conflicting interests of the Eriksons in
the Proposed Transaction with ITI. The plaintiffs also claim that Rogers & Wells
committed  malpractice by allegedly making  misrepresentations  to the Company's
Board and  allegedly  failing  to  properly  inform  the  Company's  Board.  The
plaintiffs  claim that the conduct of Rogers & Wells  caused the Company to lose
an opportunity to sell its control of Insituform East to ITI, caused the Company
to incur  substantial  expense,  and unjustly  enriched Rogers & Wells. The D.C.
complaint seeks to recover from Rogers & Wells (i) damages in an amount equal to
all fees  paid to  Rogers & Wells,  (ii)  damages  in an  amount  not less  than
$6,000,000 for the loss of the  opportunity  for the Company to sell its control
of Insituform East to ITI, and (iii) punitive damages.

         Motions to  dismiss  this case by the  Company  and Rogers & Wells were
denied,  but a stay in the  proceedings  was granted  until  after the  Delaware
trial.  Plaintiffs  agreed to a stay in the Superior  Court  action  pending the
outcome of the appeal to the Delaware Supreme Court and, subsequently,  the stay
was continued at least until such time as the Delaware  Court of Chancery  ruled
upon the plaintiffs' pending motion for post-remand relief. As of this date, the
District of Columbia action remains stayed.

                  APPOINTMENT OF INDEPENDENT PUBLIC ACCOUNTANTS

         The firm of  Deloitte  & Touche  was  engaged  to audit  the  financial
statements  of  the  Company  for  the  fiscal  year  ended  June  30,  1997.  A
representative  of  Deloitte & Touche  will be at the  Meeting  and will have an
opportunity   to  make  a  statement  if  he  or  she  desires  to  do  so.  The
representative  will also be available to respond to appropriate  questions from
any stockholders present at the Meeting.

         The Audit Committee of the Board of Directors has not yet  recommended,
and the  Board has not yet  approved,  the  appointment  of  independent  public
accountants to audit the financial statements of the Company for the fiscal year
ending June 30, 1998. It is anticipated  that the Audit  Committee will make its
recommendation  to the  Board and that the  appointment  of  independent  public
accountants will be made by the Board prior to June 30, 1998.

                                  OTHER MATTERS

         The Board of  Directors  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.

                     ANNUAL REPORT AND FINANCIAL STATEMENTS

         Financial  statements  of the Company are  contained  in the  Company's
Annual  Report on Form 10-K for the fiscal year ended June 30,  1997,  a copy of
which is enclosed herewith.

                  DEADLINE FOR SUBMITTING STOCKHOLDER PROPOSALS
           FOR INCLUSION IN THE BOARD'S PROXY STATEMENT IN CONNECTION
                    WITH THE FISCAL YEAR 1998 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, 1998 must be
received no later than June 30, 1998,  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 the meeting is held.

                                 By Order of the Board of Directors,



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

Landover, Maryland
November 10, 1997
<PAGE>
                                                                      APPENDIX A

                                  CERBCO, INC.
                            1997 BOARD OF DIRECTORS'
                                STOCK OPTION PLAN

1.       Purpose.

         The purpose of the CERBCO,  Inc.  1997 Board of Directors  Stock Option
Plan (the  "Plan") is to promote  the growth and general  prosperity  of CERBCO,
Inc. (the "Company") by permitting the Company,  through the granting of Options
to purchase  shares of its Common  Stock,  par value $.10 per share (the "Common
Stock"),  to attract  and retain  the best  available  persons as members of the
Company's  Board of Directors  with an additional  incentive for such persons to
contribute to the success of the Company.

2.       Administration.

         The  Board of  Directors  shall  administer  the Plan  and  shall  have
exclusive  authority to interpret,  construe and implement the provisions of the
Plan, except as may be delegated in whole or in part by the Board to a committee
of the Board (the "Committee") which shall consist of two or more members of the
Board.  Each  determination,  interpretation  or other  action that may be taken
pursuant to the Plan by the Board or the  Committee  shall be final and shall be
binding and conclusive for all purposes and upon all persons.

3.       Eligibility.

         All members of the Board of Directors shall receive Options pursuant to
the terms of the Plan, as set forth herein.

4.       Shares of Common Stock Subject to Options.

         Subject to the  provisions  of Sections  10 and 11 hereof,  the maximum
number of shares of Common  Stock which may be optioned  and sold under the Plan
is 125,000  shares of authorized but unissued,  or reacquired,  shares of Common
Stock of the  Company.  In the event any  shares of Common  Stock  subject to an
Option are not issued for any reason at the  expiration or  termination  of such
Option, such shares may again be subject to an Option under the Plan.

 5.       The Options.

         Each  Director  granted an Option  under  this Plan shall  enter into a
separate  written Option  Agreement  with the Company  covering each such Option
granted,  in  such  form  containing  such  terms  and  conditions  as  are  not
inconsistent  with the Plan,  as the Board or the  Committee  shall from time to
time  determine.  Except  as  provided  in this  Section,  each  Option  granted
hereunder and pursuant to each such agreement will entitle each Director to whom
such  Option is granted  the right to  purchase  5,000  shares of the  Company's
Common Stock at the Option Price,  at any time and from time to time, up to five
(5) years from the date of grant. Options will be granted hereunder each year to
each member of the Board of Directors of the Company serving as such on the date
of grant.  The first Option  grant will be made on December  19,  1997,  and the
Option Price with respect to such Option  shall be  determined  as of such date,
subject to  approval  of the Plan by the  Company's  Stockholders  at the Annual
Meeting of  Stockholders to be held on December 19, 1997. Each of the succeeding
grants will be made on the date of each succeeding  Board of Directors  meeting,
which follows each  succeeding  Annual Meeting of  Stockholders,  and the Option
Price shall be determined as of each such respective date.

6.       Option Price.

         The Option  Price for each share of the Common  Stock to be issued upon
exercise of Options  under the Plan shall be  determined on the date of grant in
the  following  manner:  (i) if the  trading  prices  for the  Common  Stock are
reported on the consolidated  transaction  reporting  system (the  "consolidated
system")  operated  by the  Consolidated  Tape  Association,  whether or not the
Common Stock is traded on an exchange, the average of the high and low prices at
which the  Common  Stock is  reported  in the  consolidated  system to have been
traded on such date;  (ii) if the  principal  market for the Common  Stock is an
exchange and if the trading  prices for the Common Stock are not reported in the
consolidated  system, the average of the high and low prices at which the Common
Stock is  reported to have  traded on such  exchange on such date;  (iii) if the
principal market for the Common Stock is otherwise than on an exchange,  trading
prices for the Common Stock are not  reported on the  consolidated  system,  and
bids and offers for such security are reported in the automated quotation system
operated by the National Association of Securities Dealers, Inc. ("NASDAQ"), the
mean between the highest  current  independent  bid price and the lowest current
independent  asked price reported on "level 2" of the NASDAQ on such date;  (iv)
if the principal  market for the Common Stock is otherwise  than on an exchange,
trading prices for the Common Stock are not reported on the consolidated system,
and bids and offers for the Common  Stock are not  reported in NASDAQ,  the mean
between the highest current  independent bid and the lowest current  independent
asked price on such date,  determined on the basis of reasonable inquiry; or (v)
if there is no  market  for the  Common  Stock,  such  price as the Board in its
discretion,  acting in good faith, shall determine,  but not less than the price
of any  contemporaneous  sales of the Common Stock. If there is a market for the
Common Stock and if, on the  pertinent  date, no  transactions  or bid and asked
prices, as the case may be, are reported for the Common Stock under the relevant
clause  above,  the Option Price of the Common Stock shall be  determined on the
next day on which  transactions or bid and asked prices, as the case may be, are
reported  for the Common  Stock  under such  clause.  The Option  Price shall be
subject to adjustment as set forth in Section 10 hereof.

7.       Exercise of Option.

         (a) An Option may be exercised at any time and from time to time within
a period of five (5) years from the date of grant of such Option with respect to
all or part of the shares  covered  thereby,  subject  however,  to the  further
restrictions contained in this Section 7.

                  In the event the  Company or the  Stockholders  of the Company
enter into an agreement to dispose of all or substantially  all of the assets or
stock of the Company by means of a sale,  a  reorganization,  a  liquidation  or
otherwise, each outstanding Option shall be exercisable with respect to the full
number of shares subject to that Option, notwithstanding the preceding paragraph
of this Section 7(a),  only during the period  commencing as of the date of such
agreement and ending when the disposition of assets or stock contemplated by the
Agreement is consummated.

         (b) An Option  shall be deemed to be exercised  when written  notice of
such exercise has been given to the Company at its principal  business office by
the person  entitled to exercise the Option and full payment for the shares with
respect to which the Option is exercised  has been  received by the Secretary of
the Company.  As soon as practicable after the date an Option is exercised,  the
Company  shall  deliver to the Director a certificate  or  certificates  for the
number of shares of Common Stock acquired upon such exercise,  registered in the
name of the Director or the name of any other person  entitled to such shares as
contemplated by Section 7(c).

         (c) An Option may be exercised by the optionee only (i) if the optionee
has served continually as a Director of the Company or its Successor Company for
at least six  months  following  the date of grant and (ii) (x) while he is, and
has  continually  been since the date of the grant of the Option,  a Director of
the Company or its Successor Company,  or (y) for a period ending six (6) months
after the Director has terminated his services in all of such capacities; except
that if a Director's  continuous service terminates by reason of his death, such
Option may be exercised  within six (6) months after the death of such Director,
but in no event  later  than  five  (5)  years  after  the date of grant of such
Option,  by (and only by) the  person or  persons  to whom his right  under such
Option shall have passed by will or by laws of descent and distribution.

         (d) An Option may be exercised in accordance  with this Section 7 as to
all or any portion of the shares  subject to the Option  from time to time,  but
shall not be exercisable with respect to fractions of a share.

8.       Options not Transferable.

         Options  under  the  Plan  may  not  be  sold,  pledged,   assigned  or
transferred  in any  manner  otherwise  than by will or the laws of  descent  or
distribution,  and may be exercised  during the lifetime of an optionee  only by
such optionee.

9.       Amendment or Termination of the Plan.

         (a) The Board of  Directors  may amend the Plan in such  respects as it
shall deem advisable;  provided that, no change shall be made that increases the
total  number of shares of Common Stock  reserved  for  issuance  under the Plan
(except  pursuant to Section 11), or materially  modifies the requirements as to
eligibility for  participation in the Plan,  unless such change is authorized by
the Stockholders of the Company. An amendment of the Plan shall not, without the
consent of the Director,  adversely  affect a Director's  rights under an Option
previously granted to him or her.

         (b) The Board of Directors may at any time terminate the Plan. Any such
terminations  of the Plan  shall not affect  Options  already  granted  and such
Options  shall  remain  in full  force  and  effect as if this Plan had not been
terminated.

10.      Adjustments Upon Changes in Capitalization.

         If all or any  portion of the  Option is  exercised  subsequent  to any
stock dividend, split-up,  recapitalization,  combination or exchange of shares,
merger,  consolidation,  acquisition  of property or stock,  reorganization,  or
other similar change or  transaction of or by the Company,  as a result of which
shares of any class  shall be issued in  respect  of  outstanding  shares of the
class covered by the Option,  or shares of the class covered by the Option shall
be changed  into the same or  different  number of shares of the same or another
class or  classes,  the  person or persons so  exercising  such an Option  shall
receive,  for the  aggregate  option  price  payable  upon such  exercise of the
Option, an aggregate number and class of shares equal to the number and class of
shares he would have had on the date of exercise  had the shares been  purchased
for the same  aggregate  price at the date the Option was  granted  and not been
disposed  of,  taking  into  consideration  any such stock  dividend,  split-up,
recapitalization,  combination  or  exchange  of shares,  merger,  consolidated,
acquisition of property or stock,  separation,  reorganization  or other similar
change or transaction;  provided,  however,  that no fractional  shares shall be
issued  upon  any  such  exercise,   and  the  aggregate  price  paid  shall  be
approximately reduced on account of any fractional shares not issued.

11.      Changes in Capital Structure of Company.

         In the event of a change in the capital  structure of the Company,  the
number of shares  specified  in  Section  5 of the  Plan,  the  number of shares
covered by each  outstanding  Option and the price per share  shall be  adjusted
proportionately  for any increase or decrease in the number of issued  shares of
Common Stock  resulting from the splitting or  consolidation  of shares,  or the
payment of a stock dividend or effected in any other manner  without  receipt of
additional or further consideration by the Company.

12.      Agreement and Representations of Director.

         As a condition to the exercise of any portion of an Option, the Company
may require the person  exercising  such Option to represent  and warrant at the
time of any  such  exercise  that  the  shares  are  being  purchased  only  for
investment and without any present  intention to sell or distribute  such shares
if, in the opinion of counsel for the Company, such a representation is required
under the Securities Act of 1933, as amended,  or any other applicable law, rule
or regulation.

13.      Reservation of Shares of Common Stock.

         The Company,  during the term of this Plan,  will at all times  reserve
and keep  available,  and will seek or obtain  from any  regulatory  body having
jurisdiction any requisite  authority in order to issue and sell, such number of
shares of its Common Stock as shall be sufficient to satisfy the requirements of
the Plan.  Inability  of the Company to obtain from any  regulatory  body having
jurisdictional  authority deemed by the Company's counsel to be necessary to the
lawful  issuance  and sale of shares of Common  Stock  under the Plan  shall not
result in any liability of the Company in respect of the  nonissuance or sale of
such stock as to which such requisite authority shall not have been obtained.

14.      Term.

         The Plan shall be effective upon its adoption by the Board of Directors
and approval by the Company's  Stockholders.  It shall  continue in effect for a
term of ten (10) years unless sooner terminated under Section 9.

15.      Definitions.

         As used herein, the following definitions shall apply:

         (a)   "Common Stock" shall mean Common Stock, par value $.10 per share,
                of the Company.

         (b)    "Continuous  Service"  shall  mean  service as a member of the
                Board of Directors,  without  interruption,  of the Company or
                its Successor Company.

         (c)    "Option" shall mean a stock option granted pursuant to the Plan.

         (d)    "Option  Price" means the purchase  price,  as  determined  in
                accordance  with Section 6 of the Plan,  for each share of the
                Common Stock issued upon the exercise of Options.

         (e)    "Plan"  shall mean the  Company's  Board of  Directors'  1997
                Stock Option Plan.

         (f)    "Stockholders" shall mean the holders of outstanding shares of
                the Company's Common Stock and Class B Common Stock.

         (g)    "Successor  Company"  means any company which  acquires all or
                substantially all of the stock or assets of the Company.


                                                      Dated:  September 16, 1997
<PAGE>

                                                                      APPENDIX B
                                                 TEXT OF COMMON STOCK PROXY CARD
- --------------------------------------------------------------------------------
                                  COMMON STOCK
- --------------------------------------------------------------------------------


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

               ANNUAL MEETING OF STOCKHOLDERS - DECEMBER 19, 1997
                              PROXY - COMMON STOCK
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

     The undersigned hereby appoints R.W. Erikson and G.Wm. Erikson, 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
October 23, 1997, at the Annual Meeting of  Stockholders  to be held on December
19, 1997 or any adjournments thereof.

                         (TO BE SIGNED ON REVERSE SIDE)
- -  -  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 


X         Please mark your
          votes as in this
          example.

1.   Proposal - Election of Director.                          

FOR, the nominee             WITHHOLD
listed at right (except      authority to vote     Nominee: P.C. Kincheloe, Jr.
as noted to the              for the nominee
contrary below)              listed at right

[     ]                       [     ]

(INSTRUCTION:  To indicate that you do not wish to            
have your shares voted for the nominee, print the
name of such nominee on the line provided below.)

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

2.   Proposal - Approval of the Corporation's 1997 Directors' Stock Option Plan.

FOR                AGAINST            ABSTAIN

[     ]            [     ]            [     ]

3.   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 PROPOSALS 1 AND 2.

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


- -----------------------  --------------------------  Dated:---------------, 1997
    SIGNATURE            SIGNATURE (IF HELD JOINTLY)

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.
<PAGE>

                                                                      APPENDIX C
                                         TEXT OF CLASS B COMMON STOCK PROXY CARD

- --------------------------------------------------------------------------------
                              CLASS B COMMON STOCK
- --------------------------------------------------------------------------------


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

               ANNUAL MEETING OF STOCKHOLDERS - DECEMBER 19, 1997
                          PROXY - CLASS B COMMON STOCK
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

     The undersigned hereby appoints R.W. Erikson and G.Wm. Erikson, 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 October 23, 1997, at the Annual  Meeting of  Stockholders  to be
held on December 19, 1997 or any adjournments thereof.

                         (TO BE SIGNED ON REVERSE SIDE)
- -  -  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 


X         Please mark your
          votes as in this
          example.

1.   Proposal - Election of Director.                          

FOR, all nominees             WITHHOLD
listed at right (except      authority to vote     Nominee: R.W. Erikson
as noted to the              for all nominees               G.Wm. Erikson
contrary below)              listed at right                W.C. Hayes, IV

[     ]                       [     ]

(INSTRUCTION: To indicate that you do not wish to have your shares voted for one
or more individual  nominee(s),  check the FOR box and print the name(s) of such
nominee(s) on the lines provided below.)

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

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

2.   Proposal - Approval of the Corporation's 1997 Directors' Stock Option Plan.

FOR                AGAINST            ABSTAIN

[     ]            [     ]            [     ]

3.   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 PROPOSALS 1 AND 2.

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


- -----------------------  --------------------------  Dated:---------------, 1997
    SIGNATURE            SIGNATURE (IF HELD JOINTLY)

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.



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