2.25" bore diameter at muzzle, 5.25" round-to-octagonal brass barrel. The top of the octagonal portion of the barrel is engraved T. Slack, with several British proof marks. The edge is engraved with a leaf pattern decoration. The lock is marked Henshaw. With a brass thumbrest with an engraved floral patter. The sideplate has an engraved serpent form. The walnut stock has a brass buttcap, brass trigger guard and a copper forend cap.
The brass has an even mustard patina. The stock has an old repair at the forend, along with some age cracks. The bore and mechanics are good.