.44 caliber, 40 inch barrel, 55 1/2 inches overall, bore has shadows of rifling, barrel is mottled plum brown to silver, lock and trigger guard show dark smooth patina, brass fore end cap-wedge escudgeons-butt plate-side plate are dark aged gold, wood is solid with no cracks, J Henry & Son marked clearly on lock and barrel, US stamped in stock below trigger guard tang, circa 1860.
J Henry & Son produced various rifles from Boulton, PA. Many were produced for the western fur trade. Some were used to satisfy treaties such as the Ft Laramie Treaty of 1868. Most treaty rifles were smaller (.36) caliber.