I think someone has already tinkered with this one. Looks to me like the hammers are not original to the gun and don't fit; the wood at the head of the stock had to be grooved on both sides to allow the hammers room for movement. Come to think of it those hammers might be off a Remington.

Welcome to the BBS. Take that gun apart, clean it and practice putting it back together. Then put it on the wall...Geo