This post-1813 blunderbuss has a Birmingham proofed barrel that flares out to around 1 1/4 inches at the muzzle but is approximately 20 gauge for most of the length and is marked "LONDON" on top. The flat lock is marked "H-NOCK" and has some simple engraving. The furniture is brass and has floral and classical martial engraving. The stock has a checkered wrist. Provenance: The Collection of Joe M. Wanenmacher Jr