Description Joseph Heylin Cannon Barrel flintlock pistol measuring in at the bore 11.50mm on our micrometer with a single round capacity and a 2.25″ screw off barrel. Smooth wood grip. Blued untextured trigger. Engraved finish worn lock and barrel. Hammer with flint and working frizzen. English proof marked on the underside. A 1 on the barrel end of frame and a small 1 on the barrel. Black Powder Muzzle-Loader, No FFL required and ships to buyers home. Condition: Very Good with finish wear/loss, replaced grip screw and touches of rust/pitting. Rust to the smooth bore. Barrel Length: 2.25″ Serial: 1 Manufacturer: Joseph Heylin Model: Flintlock Muzzleloader Year-Range 1750-1800