I have a Birmingham Small Arms company .22 hornet. It has no model number on it, but upon research, I believe it to me the model 12/15. It doesnt have the original rear sight but it has an old J.W. Fecker scope on it. The gun is in nearly mint condition. The scope is old and it is about 18 inches long and about an inch in diameter the whole length. Really wondering what I've got here. Its been in the family forever. The only modification done to it was my uncle or grandfather had a polished piece of a deer antler put on the bottom of the pistol grip. My father gave it to me cause he says he never uses it and if I could afford the .22 hornet ammo, its mine, so of course I took it. I have shot it a bit and it drives tacks works like a champ. Help me out please.