.50RF Spencer. 20" barrel. SN: 16277. Blued and color casehardened finish, walnut stock and forend. Manually cocked tubular magazine fed repeating carbine with Stabler cut-off, M1865 rear sight ladder, fixed front sight blade, sling bar and ring, single sling swivel in stock toe, M1860 pattern magazine follower tube with smooth bottom plate, and replaced butt from an arsenal refurbished M1860 Spencer with an ESA cartouche. MODEL/1865 on top of receiver, standard four-line patent and maker information as well. Weak J.L.C. sub-inspection mark on left flat of breech. {ANTIQUE}