.577 caliber. 39" barrel. NSN. No finish, brass furniture, walnut stock with three screw clamping Palmer patent barrel bands. Single shot muzzleloading percussion musket with 900-yard military ladder rear sight, Barleycorn front sight, sling swivels and jag head ramrod that is frozen in the stock channel. Lock marked TOWER/1862. Standard Birmingham commercial proof and gauge marks on the barrel. A clear Birmingham Small Arms Trade roundel is stamped in the obverse stock and an Isaac Hollis & Sons maker's mark is stamped in the toe line of the stock. An assembly or rack number, 138 is stamped in the tang of the triggerguard and the tang of the buttplate. {ANTIQUE}