.56 caliber. 42.25" heavy pinned octagonal barrel, 1.08" wide across the flats. NSN. Heavily oxidized metal, brass furniture, German silver decorations, faux striped hardwood stock with raised cheek rest and 1.5" wide butt. Single shot muzzleloading flintlock rifle with double set triggers, fixed notch rear sight, Rocky Mountain front sight and 4-piece triggerguard. Flint lock may be replaced as it is somewhat ill-fitting and is marked DUTTON/WARRANTED. Top of barrel marked H Gibbs in script. This is likely Henry Gibbs of Lancaster, PA who worked during the second and third quarters of the 19th century. {ANTIQUE}