First does anybody know how to remove the barrel from this gun. Secondly does anybody know when they were actually built. Ive heard in the 1890s and ive heard 1915 and now i hear they built them in 1901. I found a rusty gun in the barn and got curious and cleaned it up and it has hopkins and allen arms company norwich conn usa on the barrel and 922 on it as well as well as the number 45621 and i cant find out what this number is. Anyways its an interesting project the shell extractor came off and i cant put it in unless i can figure out how to take the barrel off. Any help or info on this gun would be greatly appreciated thanks!