SEVENTH AMENDMENT TO MANUFACTURING AGREEMENT


     This Seventh Amendment made as of July 24, 2000, to Manufacturing Agreement
dated December 29, 1989 between SIGNORE, INC., a Delaware corporation ("Seller")
and AMERICAN LOCKER SECURITY SYSTEMS, INC., a Delaware corporation ("Buyer").

     WHEREAS,  Seller and Buyer are parties to a  Manufacturing  Agreement dated
December 29, 1989, as amended by the First Amendment to Manufacturing  Agreement
dated  as of May  3,  1995,  as  further  amended  by the  Second  Amendment  to
Manufacturing  Agreement  dated as of March 15, 1996, as further  amended by the
Third Amendment to Manufacturing  Agreement dated as of May 21, 1996, as further
amended by the Fourth Amendment to  Manufacturing  Agreement dated as of May 20,
1997, as further amended by the Fifth Amendment to Manufacturing Agreement dated
as of  May  19,  1998,  and  as  further  amended  by  the  Sixth  Amendment  to
Manufacturing Agreement dated as of May 13, 1999 (such Manufacturing  Agreement,
as so amended, the "Amended Agreement");

     WHEREAS,  the Amended  Agreement  by its terms was to have expired on April
30, 2000,

     Whereas,  the Seller and the Buyer have  extended  the term of the  Amended
Agreement on a month to month basis since April 30, 2000, and

     WHEREAS,  Seller and Buyer wish to make certain  amendments  to the Amended
Agreement.

     NOW,  THEREFORE,  for good and valuable  consideration  and intending to be
legally bound hereby, Seller and Buyer agree as follows:

     1.   All defined terms used herein shall have the  definitions set forth in
          the Amended Agreement.

     2.   Buyer  and  Seller  acknowledge  that as of  December  31,  1999,  the
          Remaining  Inventory Value of Locker  Inventory (as defined in Section
          3(f) of the Amended Agreement) was $1,234,745.  In accordance with the
          provisions  of  Section  3(f)  of the  Amended  Agreement,  Seller  is
          obligated  to pay  Buyer the sum of  $119,243,  one third of which was
          paid in June 2000,  one third of which is to be paid on July 31,  2000
          and one third of which is to be paid on August 30, 2000.

          Such $119,243 payment is calculated as follows:

          Actual Inventory 12/31/99                                 $1,234,745
          Remaining Inventory Value 1/1/99                           1,353,988
                                                                     ---------
          Payment Due from Seller to Buyer                          $  119,243
                                                                     =========





     3.   Buyer and Seller agree that Locker Inventory determined on a pro forma
          basis  as of  December  31,  1999 as if all  payments  required  under
          Section 2 hereof  had been made as of that date was  $1,234,745  (i.e.
          Remaining  Locker  Inventory as of January 1, 1999 of $1,353,988 minus
          the $119,243 payment made by Seller under Section 2 hereof).

     4.   Except as  expressly  provided  herein,  the Amended  Agreement  shall
          remain unamended and in full force and effect.

     WITNESS the due execution hereof.

                                          SIGNORE, INC.


                                          By:      /s/ Alex N. Ditonto
                                                   ----------------------------
                                          Title:   Chairman and Chief Executive
                                                   Officer


                                          AMERICAN LOCKER SECURITY SYSTEMS, INC.


                                          By:      /s/ Edward F. Ruttenberg
                                                   ----------------------------
                                          Title:   Chairman and Chief Executive
                                                   Officer