.56 caliber. 36" pinned octagon to round barrel. SN: NSN. Blued barrel, brass furniture, walnut stock with raised cheek rest. Single screw commercial percussion lock is lightly engraved and marked "HENRY PARKER/WARRANTED". Top flat of barrel with drum bolster is weakly marked "LEMAN LANCASTER PA WARRANTED". Simple brass crescent butt plate, plain toe plate, finger extension triggerguard. German silver front sight blade. Stock cut back to "half stock" configuration long ago, with an old iron wire ring in the upper barrel tenon to help retain a wood ramrod. As well worn and heavily used trade gun from the famous Leman shop in Lancaster.