Serial # is 9256XXX. I know it was inside of a VA law enforcement dept It is full life and I feel it was made close to seventy four-seventy five timeframe. No more engraving or markings from dept, selector marked Secure-semi-car. Hope that can help the databases Tony. Should you https://cashqhryg.wikicarrier.com/255687/colt_combat_elite_commander_45_acp_for_dummies