A .451 WHITWORTH PATENT PERCUSSION TARGET RIFLE with browned barrel cut with Whitworth rifling, engraved 'Whitworth Patent' at the breech, and with windage adjustable hooded fore-sight, folding back-sight adjustable to 200 yards, case-hardened breech with platinum plug, long case-hardened tang with signed peep-sight adjustable to 1200 yards, signed case-hardened lock engraved with the company mark on the tail and with safety-catch in front of the hammer, figured walnut half-stock, chequered pistol-grip and fore-end, each with horn cap, case-hardened steel mounts including chequered butt-plate, chequered trigger, vacant silver escutcheon, and some original finish, by the Manchester Ordnance & Rifle Co., No. D 531, circa 1862-65