My Uncle was obsessed somewhat with accuracy. Would not be surprised if stock, plate, lock were original with a handmade barrel from him. All of the other metal on the gun looks way older than the barrel. When I say this thing shoots, it is an old school tack driver for a black powder gun. There are no markings on the barrel. I have owned the gun for about 11 years. The lock appears to have been engraved as opposed to stamped. The letters are not perfectly aligned and spaced as you would think a stamped piece would be.