.52RF. 22" barrel. SN: 3042. Blued and color casehardened finish, walnut stock. Single shot breechloading carbine with M1861 pattern leaf rear sight, pinched shark fin front sight and saddle bar and ring. Standard markings on lock and breechblock, no visible cartouches, breechblock is numbered 2640 and does not match the gun. {ANTIQUE}