EXHIBIT 4(q)                       


                                        September 12, 1997

Mr. Charles G. Emley, Jr.
Chief Executive Officer
Pico Products, Inc.
12500 Foothill Boulevard
Lakeview Terrace, CA  91342

          RE:  THE SINKLER CORPORATION - PICO PRODUCTS, INC.

Dear Charles:

          The purpose of this letter is to confirm our agreement with respect to
the issuance and sale by Pico Products, Inc., a New York corporation
(hereinafter "Pico"), of 165 shares of Series B Redeemable Preferred Shares (the
"Stock") to The Sinkler Corporation, a Delaware Corporation ("Sinkler"), and I
am writing you as Vice-President of Sinkler pursuant to the authority of its
Board of Directors, evidence of which will be delivered at or prior to Closing
(as hereinafter defined).  A substantial reason for the willingness of Sinkler
to make this investment in the Stock of Pico is the willingness of Allied
Capital to make an equity/debt investment in Pico (the "Allied Transaction") on
substantially the terms and in the amounts set forth in a certain letter dated
July 15, 1997 (the "Allied Letter") from Allied to you, and, therefore, the
affirmative covenants and undertakings that Sinkler will require of Pico are
intended to be equivalent to those provided to Allied by Pico, thereby reducing
the administrative burden of the transaction to Pico.

          Subject to the foregoing and the mutual covenants herein contained and
for and in consideration of their mutual obligations herein set forth, Sinkler
and Pico, intending to be legally bound, agree as follows:
     
     1.   THE PURCHASE.  Sinkler agrees at Closing to deliver to Pico the sum of
One Hundred Sixty Five Thousand ($165,000) Dollars in the form of a cashier's
check made payable to Pico's order or wire transfer to an account designated by
Pico.  Pico at Closing will deliver to Sinkler one or more certificates
representing in the aggregate one hundred sixty-five (165) shares of the Stock
issued in the name of Sinkler.  Sinkler further agrees to deliver to Pico at
Closing the sum of ten dollars ($10.00) in the form of a check payable to Pico's
order or wire transfer to an account designated by Pico as consideration for the
purchase by Sinkler of warrants (the "Warrants") to purchase 144,200 Pico common
shares from Pico together with certain contingent warrants to purchase Pico
common shares under certain circumstances.  The designations, powers,
preferences and rights, and the qualifications, limitations and restrictions of
the Stock are set forth in the Designation Statement attached to this letter as
Exhibit "A" and are generally described below in this letter.  It is understood
that in the event there shall be any inconsistency between the Designation
Statement and this letter, the provisions of the Designation Statement shall be
controlling.




              A.     The Stock will impose on Pico the obligation to declare 
quarterly dividends, payable at a rate of ten percent (10%) per annum, with 
the option of Sinkler to receive Pico common shares (the "Dividend Shares") 
in lieu of the payment of any cash dividend otherwise payable, upon written 
notification by Sinkler to Pico thirty days prior to the scheduled dividend 
payment date.  If Sinkler exercises the option to take Dividend Shares, the 
number of such Dividend Shares shall be determined in the manner set forth in 
the Designation Statement.  All unpaid cash dividends shall be cumulative.  
In the event that Pico exercises its option to delay payment of a quarterly 
dividend (as provided in the Designation Statement), Pico will pay Sinkler 
interest on the amount of the delayed dividend payment at an annual rate 
equal to First Union Bank's prime rate as in effect from time to time during 
the delay in payment.  The Stock will be redeemable according to the 
following schedule:

          All outstanding shares on or before September 28, 2000.

Notwithstanding the foregoing, Pico may call all or any portion of the Stock for
redemption at any time without penalty.  The Stock will have preference in
liquidation or in any bankruptcy or reorganization proceeding ahead of the
common stock.  Sinkler acknowledges that Pico will not make any payment of any
dividend or any amount on account of a redemption of the Stock during any period
of time when there shall exist an event of default under the Allied Agreement.

              B.      The Warrants will be separate and detachable, and
exercisable for a period of six (6) years after Closing or 36 months from the
final payment on the subordinated debentures issued by Pico pursuant to the
Allied Transaction, whichever is later. The exercise price will be equal to the
average closing price for the 90 calendar days preceding the date which is 120
calendar days following the date of filing with the SEC of the Company's Form
10-K for the fiscal year ended July 31, 1997 (the "Pricing Date").  In the event
that any or a portion of the Warrants are exercised prior to the Pricing Date,
the per share exercise price will be equal to the average trading price for the
90 calendar days preceding the actual date of exercise (the "Preliminary
Exercise Price"), subject to adjustment based on the actual Exercise Price on
the Pricing Date, provided that at the time of such determination, the Common
Stock is traded in the over-the-counter market or on a national or regional
securities exchange.  In the event there is no closing price on any day during
such 90 day period, then the average of the most recent bid and asked price
shall be used as the price for such day for purposes of calculating the Exercise
Price.  The Warrants will give Sinkler the same registration rights, rights to
obtain additional warrants and anti-dilution protection as given to Allied under
the Allied Transaction, provided that Sinkler shall only exercise its demand
registration rights in conjunction with Allied.
     
     2.   CONDITION PRECEDENT TO SINKLER'S OBLIGATIONS.  Sinkler's obligations
under this Agreement shall depend and be conditioned upon (i) Pico's completion
of the Allied Transaction on substantially the terms and conditions set forth in
the Allied Letter and (ii) the 

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sale to Sinkler by Allied of 35,000 shares of the Common Stock of Pico at a
price of $.286 per share.
     
     3.   WAIVER OF ANTI-DILUTION RIGHTS.  Sinkler hereby waives its rights to
"Anti-Dilution Adjustments" under Section 4 of the Stock Purchase Warrant dated
November 21, 1996 (the "Prior Warrant") with respect to the issuance by Pico of
the Stock, Warrants and the common shares to be received upon exercise of the
Warrants, hereinafter referred to as the "Warrant Shares."  Except for the
specific waiver contained in this Section 3, Sinkler's rights to anti-dilution
protection under the Prior Warrant remain in full force and effect and Sinkler
is under no obligation to grant any further waivers thereof.

     4.   CALL PROVISION.  Within 90 days after all of the Obligations have been
fully paid, the Parent may purchase from the Holders up to 30,000 shares of the
Warrant Shares, at a price per share equal to $3.00, or, if the Warrants have
not been exercised, may have the right to purchase up to 30,000 shares of
Warrants, at a price per share equal to $3.00 less the exercise price per share.

    5.    REPRESENTATIONS AND WARRANTIES.  

               A.   Pico hereby makes the same representations and warranties to
and for the benefit of Sinkler as are contained in Article III of the Investment
Agreement, dated today, between Allied Capital International Corporation and
certain affiliates, as the investors, and Pico and certain affiliates (the
"Allied Agreement").  In addition Pico represents and warrants to Sinkler that
(i) this agreement and the transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of Pico; and (ii) this
Agreement and the Warrants constitute the valid and binding obligations of Pico,
enforceable in accordance with their respective terms.

              B.      Sinkler hereby represents and warrants to Pico that
it (i) is acquiring the Stock and the Warrants (and will acquire the Warrant
Shares) for its own account for the purpose of investment and not with a view to
or for sale in connection with any distribution thereof; (ii) understands that
the Stock, the Warrants, and the Warrant Shares have not been registered under
the Securities Act of 1933 (the "Act"), as amended, by reason of their issuance
in a transaction exempt from the registration requirements of the Act pursuant
to Section 4(2) thereof and may not be offered or sold except pursuant to an
effective registration statement or an available exemption from the registration
requirements under the Act; and (iii) is an "accredited investor" as defined in
Regulation D as promulgated under the Act.  Sinkler agrees that certificates
representing the Stock, the Warrants, and the Warrant Shares will bear
restrictive legends to the effect of clause (ii) of the preceding sentence and
that Pico may require an opinion of counsel, in form and substance reasonably
satisfactory to Pico, to the effect that any proposed transfer will not result
in any violation of the Act and the rules and regulations thereunder.


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     6.   AFFIRMATIVE COVENANTS.   As long as the Stock has not been 
redeemed, Pico will make the following covenants:

               A.     PROJECTIONS.  Pico agrees to supply the same 
projections to Sinkler it has agreed to supply under section 4.05 of the 
Allied Agreement.

               B.       MATERIAL FILINGS; MATERIAL LITIGATIONS; DEFAULT 
NOTICES.  Pico agrees to supply Sinkler with the same information it has 
agreed to supply under Sections 4.06, 4.07 and 4.08 of the Allied Agreement.

     7.   NEGATIVE COVENANTS.

               A.   As long as any of the Stock remains unredeemed, Pico 
agrees to the same negative covenants for the benefit of Sinkler that it has 
provided under sections 5.01, 5.02 and 5.05 of the Allied Agreement.  

              B.   As long as any of the Stock remains unredeemed and Sinkler 
has any unexercised Warrants, Pico agrees not to make any redemptions of 
common shares or dividend payments on the common shares unless Sinkler is 
given an opportunity to exercise its Warrants.  

             C.      As long as any of the Stock remains unredeemed, Pico 
agrees not to issue any preferred shares senior to, or of equal parity with, 
the Stock, or to make any cash payment of dividends on any preferred shares 
which are junior to the Stock if the amount of such cash dividends paid in 
any fiscal year is greater than the Equivalent Rate multiplied by the 
purchase price of such junior preferred shares. The term "Equivalent Rate" 
shall mean the prime rate of First Union Bank on the date of issuance of any 
such junior preferred shares plus 3.5%.

     8.   DEFAULT.

          A.      The following shall constitute events of default:

          (i)  Failure to declare or pay any dividend on the Stock as 
required by this Agreement or the provisions of the Designation Statement.

          (ii) Breach of any affirmative or negative covenant; Pico will have 
10 days to cure any violation of a financial covenant after notice of default 
from Sinkler  and will have 30 days to cure any violation of a non-financial 
covenant after notice of default from Sinkler.  Pico agrees to provide 
Sinkler with any notice of default which it provides under the Allied 
Agreement.

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         (iii)   Any representation or warranty made by Pico pursuant to 
Section 4A hereof shall prove to have been untrue when made in any material 
respect.

          (iv)   The occurrence of an event described in Section 7.04, 7.05, 
7.06, or 7.07 of the Allied Agreement.

In addition to all other remedies it may have at law or in equity in the 
event of a Default as set forth above, which is not cured as herein provided, 
Sinkler shall have the unqualified right to demand the immediate redemption 
of the Stock, with which demand Pico agrees to immediately comply.



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     9.   LEGAL OPINIONS.

          A.   Pico agrees to supply Sinkler with an opinion of the counsel, 
Messrs.  Saul, Ewing, Remick and Saul, to the effect that:

          (i)  Pico is a corporation duly incorporated and validly existing 
under the laws of the State of New York.

          (ii) The transaction set forth in this letter agreement and the 
execution of this Agreement have been duly authorized by the Board of 
Directors of Pico and do not violate any law or statute, by-law, agreement, 
covenant or understanding by which Pico is bound.

          B.    Sinkler agrees to supply Pico with the opinion of its 
counsel, Messrs.  Montgomery, McCracken, Walker & Rhoads, to the effect that:

          (i)   The transaction set forth in this letter agreement and the 
execution of this letter agreement have been duly authorized by the Board of 
Directors of Sinkler; and the borrowing necessary to fund this transaction 
has likewise been duly authorized by the Board of Directors of Sinkler.

    10.   CLOSING.  Closing hereunder will take place simultaneously with 
Pico's closing of the Allied Transaction and simultaneously with the 
execution and delivery of this Agreement, at the offices of Messrs. Saul, 
Ewing, Remick & Saul, 3800 Centre Square West, Philadelphia, Pennsylvania.


                                        Sincerely,



                                       By:
                                           -----------------------
                                                Vice President

                                        Accepted and Agreed to:

                                        PICO PRODUCTS, INC.


                                       By:
                                           -----------------------
                                        Charles G. Emley, Jr., Chairman
                                        and Chief Executive Officer

Date:  ____________, 1997




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EXHIBIT A

                            PICO PRODUCTS, INC.
 
                   RESOLUTION OF THE BOARD OF DIRECTORS
                               APPROVING
                        THE DESIGNATION STATEMENT
            RELATING TO SERIES B REDEEMABLE PREFERRED SHARES
                           

     WHEREAS, the Certificate of Incorporation of the Corporation authorizes 
the Corporation to issue a total of 500,000 series preferred shares, par 
value $.01 per share ("Preferred Shares"),  which may be divided into one or 
more series as the Board of Directors may determine;

     WHEREAS, the Certificate of Incorporation of the Corporation expressly 
vests in the Board of Directors the authority to fix and determine the 
designations, powers, preferences, and rights, and the qualifications, 
limitations and restrictions thereof, of the Preferred Shares;

     WHEREAS, the Board of Directors has designated a series of the 
Corporation's Preferred Shares consisting of one thousand (1,000) shares 
designated as Series A Redeemable Preferred Stock (the "Series A Shares"), 
and one thousand (1,000) shares of such Series A Redeemable Preferred Shares 
have been issued by the Corporation; 

     WHEREAS, it is deemed advisable to designate a second series of 
Preferred Shares consisting of 165 shares designated as Series B Redeemable 
Preferred Shares;

     NOW, THEREFORE, IT IS HEREBY RESOLVED, that pursuant to Paragraph THIRD 
of the Certificate of Incorporation of the Corporation, there be and hereby 
is authorized and created a series of Preferred Shares hereby designated as 
Series B Redeemable Preferred Shares, to consist of 165 shares having a par 
value of $0.01 per share, which series shall have the voting rights, 
designations, powers, preferences, relative and other special rights, and 
qualifications, limitations and restrictions set forth below:  

     1.   DESIGNATION.  The designation of the series of Preferred Shares 
created hereby is Series B Redeemable Preferred Shares and the number of 
shares constituting such series is 165 (the "Series B Shares").

     2.   RANK.  The Series B Shares shall, with respect to dividend rights, 
rights on redemption and rights on liquidation, winding up and dissolution 
(collectively, the "Rights"), rank prior to all classes of common shares of 
the Corporation and to each other class of capital shares or series of 
Preferred Shares of the Corporation hereafter created which does not 
expressly provide that it ranks senior to or on a parity with the Series B 
Shares.  The Series B Shares shall, with respect to all such Rights, be on 
parity with the Series A Shares.

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     3.   VOTING RIGHTS.  Except as otherwise provided by law, the holder of 
the Series B Shares shall not be entitled to vote on any matters with the 
holders of other voting capital shares.

    4.  DIVIDENDS.  Except as otherwise provided in this Paragraph 4, the 
holder of the Series B Shares shall not be entitled to receive dividends.

          A.   GENERAL DIVIDEND OBLIGATIONS.  When and as declared by the 
Board of Directors of the Corporation, the Corporation shall pay to the 
holders of the Series B Shares, out of the assets of the Corporation 
available for such payment of dividends under the New York Business 
Corporation Law, payable in preference and priority to any payment of any 
dividend on common shares of the Corporation, dividends at the times and in 
the amounts provided in this Paragraph 4. The Board of Directors of the 
Corporation shall declare and pay to the holder of Series B Shares dividends 
at the Dividend Rate described in Paragraph 4.C. below on a quarterly basis; 
provided that the Board of Directors may in its discretion postpone the 
declaration and payment of one or more quarterly dividends so long as 
dividends are declared and paid on at least an annual basis.

          B.   CALCULATION OF DIVIDENDS.  Dividends for each Series B Share 
will be calculated cumulatively on a quarterly basis at the rate and in the 
manner prescribed herein from and including the "Commencement Date" with 
respect to such Series B Shares to, but excluding, the date on which the 
Series B Shares are redeemed or the Liquidation Price has been received with 
respect to the Series B Shares, whether or not such dividends have been 
declared and whether or not there are (at the time such dividends are 
calculated or become payable or at any other time) profits, surplus or other 
funds of the Corporation legally available for the payment of dividends.

     For the purposes of this Subparagraph 4.B., the "Commencement Date" with 
respect to any Series B Share shall be deemed to be the date of issuance 
regardless of the number of times transfer of such Series B Share is made on 
the share records maintained by or for the Corporation and regardless of the 
number of certificates which may be issued to evidence such Series B Share 
(whether by reason of transfer of such Series B Share or for any other 
reason.)

          C.   DIVIDEND RATE.  Dividends payable on the Series B Shares shall 
be calculated cumulatively with respect to each quarter in which dividends 
are due on each Series B Share at a rate of 10% of the Liquidation Value per 
annum ("Dividend Rate").  To the extent not paid on the first day of each 
January, April, July, and October (each a "Dividend Reference Date"), an 
amount equal to all dividends which have been calculated on Series B Shares 
then outstanding during the quarterly period (pro rated for a shorter period 
as appropriate) ending on the day immediately preceding such Dividend 
Reference Date shall be added to the Redemption Price (as described in 
Paragraph 7 hereof) of such Series B Share and will remain a part thereof 
until (but only until) such dividends are paid.  Any subsequent dividends 
which are paid to the holder of the Series B Shares in respect thereof shall, 
in all instances, be applied first to the 

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payment of amounts of dividends which have been added on previous Dividend 
Reference Dates to the Redemption Price until the Redemption Price of all 
Series B Shares shall be equal to the original Redemption Price, as adjusted, 
herein stated.

          D.   FORM OF PAYMENT.  The Dividend Rate shall be payable quarterly 
in cash or in common shares of the Corporation, as determined by the holders 
of a majority of the outstanding Series B Shares, by notice to the 
Corporation at least thirty (30) days prior to the applicable Dividend 
Reference Date.  In the absence of such notice, it shall be presumed that the 
dividend for the applicable quarter shall be payable in cash. In the event 
that payment in the form of common shares is elected by the holders of the 
Series B Shares, the number of common shares issuable shall be determined by 
dividing the amount of the dividend by the average Market Value (as 
hereinafter defined) of the Corporation's common shares over the ten 
consecutive trading days ending on the trading day immediately prior to the 
Dividend Reference Date.  "Market Value" shall mean the average of the high 
and low prices of the common shares, as reported in The Wall Street Journal, 
on the American Stock Exchange (or a similar consolidated transactions report 
for the exchange or other market on which the common shares is then trading, 
if not the American Stock Exchange) for the relevant date, or if no sales of 
common shares were made on such exchange on such date, the average of the 
high and low prices of such shares as reported in such composite transaction 
report for the preceding day on which sales of shares were made on such 
exchange.  If the common shares are not listed on a national securities 
exchange at the time Market Value is to be determined, then Market Value 
shall be determined by the Board of Directors of the Corporation in good 
faith pursuant to such method as the Board of Directors deems appropriate and 
equitable.  Under no circumstances shall the Market Value of a common share 
be less than its par value.  All fractional shares shall be paid in cash.  
All unpaid cash dividends shall be cumulative.

          E.   PRIORITY.  So long as any Series B Shares shall be 
outstanding, without the consent of the holders of a majority of the 
outstanding Series B Shares, the Corporation shall not declare or pay on the 
common shares of the Corporation any dividend whatsoever, whether in cash, 
property or otherwise, nor shall the Corporation make any distribution on the 
common shares, nor shall any common shares be purchased or redeemed by the 
Corporation or any subsidiary thereof, unless (i) all dividends to which the 
holders of Series B Shares have been entitled for all previous dividend 
periods shall have been paid or declared and a sum of money sufficient for 
the payment thereof set apart, and (ii) all Series B Shares which the 
Corporation was theretofore obligated to redeem in accordance with Paragraph 
7 hereof shall have been redeemed.

      5.  LIQUIDATION.  In the event of any voluntary or involuntary 
liquidation, dissolution or winding up of the affairs of the Corporation, the 
holders of Series B Shares then outstanding shall be entitled to be paid out 
of the assets of the Corporation available for distribution to its 
shareholders an amount equal to one thousand dollars ($1,000.00) for each 
Series B Share outstanding (such amount, as it may be adjusted from time to 
time to give effect to any share splits or combinations, recapitalizations or 
other similar events, the "Liquidation Value") plus an 

                                       9



amount equal to all accumulated but unpaid dividends thereon to the date 
fixed for the liquidation, dissolution or winding up, before any payment 
shall be made or any assets distributed to the holders of common shares.  
Except as provided in the preceding sentence, holders of Series B Shares 
shall not be entitled to any distribution in the event of liquidation, 
dissolution or winding up of the affairs of the Corporation.  If the assets 
of the Corporation are not sufficient to pay in full the liquidation payments 
payable to the holders of the Series B Shares, then the holders of all such 
shares shall share ratably in accordance with the respective amounts to which 
the holders of outstanding Series B Shares would be entitled if all amounts 
payable thereon were paid in full.  The liquidation payment with respect to 
each outstanding fractional Series B Share (if any) shall be equal to a 
ratably proportionate amount of the liquidation payment with respect to each 
outstanding Series B Share.

     6.   CONVERSION.  The Series B Shares shall not be convertible into or 
exchangeable for shares of any other series or class of shares of the 
Corporation.

     7.   REDEMPTION.  The Series B Shares shall be redeemable as follows:  

          A.  OPTIONAL REDEMPTION.  The Series B Shares shall be redeemable, 
at the option of the Corporation, in whole or in part, at any time without 
penalty, at a redemption price equal to one thousand dollars ($1,000.00) per 
share (the "Redemption Price") plus an amount equal to all accumulated but 
unpaid dividends thereon to the date fixed for redemption.
     
          B.  MANDATORY REDEMPTION.  The Series B Shares shall be redeemed, 
out of funds legally available therefor, at the Redemption Price plus an 
amount equal to all accumulated but unpaid dividends thereon to the date 
fixed for redemption on the following dates and in the following amounts:

          All outstanding shares on or before September 28, 2000.
          
          C.  REDEMPTION PROCEDURES.  When the Corporation redeems the Series 
B Shares, the following procedures shall apply:

          (i)  When less than all of the outstanding Series B Shares are 
being redeemed, the shares subject to redemption shall be determined in the 
sole discretion of the Corporation.

          (ii)  Notice of redemption shall be given by first class mail, 
postage prepaid, mailed not less than 30 days nor more than 60 days prior to 
the date on which Series B Shares are to be redeemed (any such date, a 
"redemption date"), to the holder of record of the shares to be redeemed at 
such holder's address as the same appears on the share register of the 
Corporation.  Such notice shall state:  (a) the redemption date; (b) the 
redemption price; (c) the number of shares subject to redemption; and (d) the 
place or places where certificates for such shares are to be surrendered for 
payment of the redemption price.

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          (iii)  Notice having been mailed as aforesaid, from and after the 
redemption date (unless default shall be made by the Corporation in providing 
money for the payment of the redemption price of the shares called for 
redemption) said shares shall no longer be deemed to be outstanding and shall 
have the status of authorized but unissued Series B Shares, and shall not be 
reissued as Series B Shares, and all rights of the holder thereof as a 
shareholder of the Corporation (except the right to receive from the 
Corporation the redemption price) shall cease. Upon surrender in accordance 
with said notice of the certificates for any shares so redeemed (properly 
endorsed or assigned for transfer, if the Board of Directors of the 
Corporation shall so require and the notice shall so state), such shares 
shall be redeemed by the Corporation at the redemption price aforesaid.


















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