This fascinating combination weapon from the 1830s combines a blunderbuss style pistol using an underhammer action with a truncheon and would have been an excellent sidearm for a lawman or prison guard. These rare truncheon pistols are just one of a variety of arms made based on John Day's 1823 British patent originally covering an underhammer cane gun. The Birmingham proofed barrel screws off and has an approximately .60 caliber bore that flares out to nearly an inch at the belled muzzle. The barrel and action have multiple bands of wavy line knurling for grip. "2" is marked on the breech face of the barrel, and "72" is on the action, hammer, and trigger. The distinctive eagle head pommel is hollow and has a threaded cap.

Very fine with lovely aged patina throughout, crisp detailing on the eagle head, and generally minor age and storage related wear overall. Mechanically excellent. You very seldom see these captivating pistol truncheons in the U.S., and they make outstanding additions to firearms curious collections.