U.S. military single shot percussion pistol Model 1842, approx 358 mm overal with 215 mm round barrel of 56 cal.(8.½ inch barrel,14 inches overall) .Inspectors stamps on left side. Brass mounted with captive steel ramrod. Lock marked 'U.S.' and 'H.Aston' Middleton Conn 1847' (Flayderm 6A-050). U.S. military single shot percussion pistol Model 1842, approx 358 mm overal with 215 mm round barrel of 56 cal.(8.½ inch barrel,14 inches overall) .Inspectors stamps on left side. Brass mounted with captive steel ramrod. Lock marked "U.S." and "H.Aston" Middleton Conn 1847" (Flayderm 6A-050)