The Hall Rifle is an extremely significant U.S. military firearm. The Model 1819 Rifle was the first breech loading military arm produced in large quantities and adopted as a regulation weapon by the U.S. This Model 1819 Rifle has a "1831" dated breechblock and pin-fastened barrel bands. The breechblock is marked: "J.H. HALL / H. FERRY / US / 1831" in four lines perpendicular to the bore. The barrel, receiver and furniture have a brown finish and the breech is casehardened. Steel ramrod with a button head and the front sight doubles as a bayonet lug. The stock is oil-finished black walnut. The rifle was converted to percussion by grinding the pan flush with the top of the breech, adding a musket nipple in the old flash hole and installing a new hammer with a percussion top. This particular rifle is the Type II transitional conversion having the old style spur release device for the breech block. Approximately 4,200 of these rifles were converted 1841 - 1842