.56-50. 20" barrel length. SN: 10070. Blued barrel with the balance of parts casehardened and mounting flat wrist walnut furniture with a saddle bar and ring. Lever action repeating rifle fed by a tube magazine within the butt. The top of the receiver bears the manufacturer marking SPENCER REPEATING/RIFLE CO. BOSTON MASS./PAT'D MARCH. 6. 1860. with the rear barrel struck M.1865. The rifle mounts a folding ladder rear sight graduated to 900 yards, a Stabler magazine cutoff, and six-groove rifling. The right sides of the carrier block, breechblock, and lever all feature an M initial stamp, while the right hammer is struck with the P initial. The left barrel is marked with a W over an R initial. Barrel band shows no extant markings, but the left stock displays a weak ESA cartouche of Erskine S. Allin behind the saddle bar. The presence of the Allin mark indicates the item was refurbished at the Springfield Armory at some point.