In a bit over my head here, and looking for some help identifying if this is an original 1863 Springfield or a reproduction. The gun is in good shape, bore is very good, lock is strong. The barrel bands are on tight, and I think I’d have to drive them off to remove them, and I don’t want to go beating on this thing if I don’t have to How would I go about determining if this is the real deal or a defarbed replica? Any help is appreciated.