Originally Posted by
trapdoor-man
Looks like a parts gun. Maybe Bannerman, maybe not. SN, like you said, is 1888. Stock is early Mod 1873, breech block should have 1884 or 1888 on it, rear sight looks 1879ish or there abouts. Rear band should have a divit on the top where the proper Buffington rear sight sits when it is completely down. Rear sight should have an R (rifle) stamped on the ladder. C if it is a Carbine sight. Lock plate is from Springfield muzzle loader. You can tell not only by the 1863 on it, but the plate edge has a bevel on it. TD plates are flat on their edge. If the lock internals are 1884/88, you should hear 3 clicks when you pull the hammer back. Not sure when they went from 2 clicks to 3, but 1884 on is definitely 3 clicks. Stock should have a "P" in circle in front of trigger guard. Somewhere near the rear lock screw head will be a cartouche with some letters and a year. Like 1884 SWP. This was the inspectors mark. Best I can do off the top of my pointy little head. Enjoy it. Parts gun, Bannerman or not, it's a great rifle.