12 GA, 34.5" octagonal to round barrel, no S/N. Bead front sight. Lockplate marked "MANTON" with barrel marked "LONDON." Checkered grip and brass tipped ramrod.
Very good condition. Barrel has an even plumb patina with some wear on raised surfaces. Lockplate and tang have a light gunmetal patina. Hammer holds at half cock and is mechanically functional. Bore good.