Serial # is 9256XXX. I understand it was within a VA police dept it's complete life and I believe it absolutely was produced around 74-75 timeframe. No additional engraving or markings from dept, selector marked Safe and sound-semi-auto. Hope that assists the database Tony. Should you stumble throughout any information https://leedirectory.com/listings12977053/the-basic-principles-of-colt-combat-elite-commander-45-acp