How common is it for the gas tube wood to be stamped like this? Also the sideways stamp on the stock. Are the letters usually left off? This is a 1954 and the insides look new. The barrel has a blued finish inside and the chamber also. The rifling looks new all the way to the muzzle. Could the barreled reciever have been blued resulting in bluing over the chrome bore or is there no chrome bore? Finally got a pretty good pic of the muzzle end of the barrel. The crown is shinny , but the inside is blue.