.40 caliber, 7.125" round barrel, S/N 290 / 658. Blued and color case hardened finish, brass triggerguard, smooth walnut grips. Single action, 6-shot percussion revolver. Top strap marked MASS ARMS CO / CHICOPEE FALLS, lock marked WESSON'S & LEAVITT'S PATENT. Face of frame numbered 290, barrel lug numbered 658. Rear face of cylinder and face of cylinder rotating ring with patent date information, barrel catch with patent markings as well. Only about 800 of these large percussion holster revolvers were produced circa 1850-1851.
Very good. Retains some traces of blue on the barrel with moderate surface oxidation, some minor roughness and some surface rust under the topstrap and around the forcing cone. Frame with some muted case color, triggerguard with an uncleaned butterscotch patina. Markings remain clear, mechanically functional, fair bore with visible rifling and moderate pitting throughout. Grips with some varnish, showing scattered bumps, dings and mars and a couple of small chips along the lower edges.