.54 caliber. 33" barrel. NSN. Browned finish, color casehardened lock and hammer, brass furniture, walnut stock. Single shot percussion muzzleloading rifle with fixed rear sight, brass blade front sight, brass patchbox, sling swivels and brass tipped trumpet head ramrod. Lock marked U.S./E. WHITNEY forward of hammer and N. HAVEN/1850 vertically at the tail. Breech with US/GW/V P markings and dated 1851 on the tang. Left barrel flat stamped STEEL. No cartouches visible on stock. {ANTIQUE}