Serial # Is 9256XXX. I understand it was in the VA police dept it's whole daily life and I think it was manufactured around seventy four-75 timeframe. No further engraving or markings from dept, selector marked Harmless-semi-automobile. Hope that can help the databases Tony. In case you stumble across any https://colt-python-6-for-sale52109.arwebo.com/54148780/colt-combat-elite-commander-45-acp-for-dummies