Dave, it resembles a gun brought in for repairs back in the '80s that had a cherry stock and long barrel. It had been badly broken at the wrist. It was dated 1831 and was probably a 'made from spare parts' gun. As I recall it was 16 guage, American. It had that large 'flat' checkering on the wrist, and Mr. Miller did an outstanding job on it, inserting a steel rod and epoxying the wrist back together, then re-cutting the checkering and matching the original finish/patina. I imagine there were lots of guns made up like these back in the day. Just a versatile homestead shotgun. Your gun appears to be made up in walnut with the barrel fitted with a drum and using a civilian 'Enfield' type percussion lock. Really a neat piece, it could tell tales of woe for small game and birds, Geo.