REVISIONS 155 | ZONE DESCRIPTION\PER REQUEST\DATE NOTES: FINISH (PLATING THICKNESS IN MICRO-INCHES) 1.BRASS PER 2.BRASS PER 3.PHOSPHOR BRONZE PER Q-B-750 17.9 23.7 STAMP (IF ANY. 33 Ramos 4/NICKEL PL_100 MIN. THICK EVER COPPER STRIKE 5.GOLD PL. 3 MIN. THICK OVER NICKEL PL. 100 MIN.