This is marked United States Property on the barrel bottom and Springfield’s flaming bomb proof is on the frame forward of the hammer. The serial number is 77906 and is matching numbers. The mechanical function is crisp and tight and the bore is excellent, bright and shiny. It retains 97% original finish and is .45 Caliber. The right grip has a chip missing from the toe. Eagle S1 and eagle S2 is also stamped on the revolver. There is also an excellent condition US 1917 dated holster marked G&K 1917 A.G. that came with this revolver. This is a C&R gun and needs a C&R or FFL to ship.