Need some help on markings on this Colt...Anyone know what these marking mean on this Colt DA 45 and has laynard ring on it. It is marked United States Property and on the frame on the right rear side are these initals: R.C.G. OR R.C.C., hard to make out if last one is a C or G. Anyone have a clue as to what the initals mean, they are done like at an armory or at Colt's plant, a very good quality marking.

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