NOTICE BY SELLER OF COMMENCEMENT OF PERFORMANCE



                                        Date:
        To:




        Dear Sir:

              You are hereby notified that on ____________,19___ we
        commenced the following work and shipment shall be made by
        __________,19__.

                We will advise you as the work progresses and when we are
        ready to make shipment to you.



                                        _____________________________


                                                       Form 323