Colt 1905 USMC Revolver, 38 caliber. US-MC No628 marked on the butt. This has the proper checkered walnut grips, which are marked J.Mock Larksville-Chief of Police 3.3.36 on the back in pencil. This has about 40% blue remaining and a VG+ bore. Per the factory letter included, this was shipped 10-3-1908. Only 812 were delivered to the USMC.