High Standard Model HD, .22lr. This is marked Property of US and has the crossed cannons inspector marking on the right receiver. This has the proper black Bakelite grips. This is one of 2620 built built for the WWII war effort as a silencer pistol, now which had been sent back to the factory and barreled with a 6 3/4″ pattern. This still retains about 95% blue and an excellent bore.