Defense Supply Center Columbus PO BX 16595, DSCC-PBAB Columbus, OH 43216-6595

48 -- VALVE, CHECK. CNT SP0740-97-M-GP82 AMT $99,310.86 LINE 0001 THROUGH 0002 DTD 091597 TO PTI Technologies Inc Sub of ESCO Electronics Corp 950 Rancho Conejo Blvd P.O.Box 2000 Newbury Park CA 91320-1715 (0259)

Loren Data Corp. http://www.ld.com (SYN# 0506 19970918\48-0006.AWD)