.60 caliber. Three-stage octagon-to-round pinned barrel. SN: NSN. Oxidized metal, brass furniture, full-length walnut stock. Percussion altered flint lock marked "R&R/SUTHERLAND" with "{CROWN-BROAD ARROW}" British Board of Ordnance acceptance mark. Top flat of barrel marked "LONDON" and upper left breech with British Board of Ordnance proof marks. Simple drum bolster conversion with a crude percussion hammer. Typical Chief's Grade brass furniture, with flat brass two screw side plate engraved with trophies of arms, lightly engraved triggerguard, lightly engraved buttplate tang and corrugated ramrod pipes. German silver Indian Chief motif wrist escutcheon, typical raised carved apron around the breech plug tang. This gun was part of the British Board of Ordnance 1813 contracts with various English gunmakers to provide arms to the Native allies fighting the Americans during the War of 1812. The firm of Richard and Ramsay Sutherland delivered 2,587 guns, both of standard grade and Chief's Grade to the Board of Ordnance under this contract between 1813 and 1816. The firm itself operated from 1800-1827. Jim Gordon depicts a similarly percussion altered example in his book Great Gunmakers for the Early West (Volume I) on page 141.