This rifle was built by Samuel McCosh of Western Pennsylvania. The Kentucky Rifle Foundation lists: "(born 1813) Nottingham Township, Washington County (1835-36) Pittsburgh, Allegheny County (1849-60) Gastonville, Washington County (1862-90)", and Kaufman and Rosenberger in "The Longrifles of Western Pennsylvania" list an older McCosh (1796-1868) as working in Pittsburgh, Allegheny County, Pennsylvania, in 1826-1830 and then Nottingham Township, Washington County, Pennsylvania, in 1831-1846. The slightly tapered rifled barrel measures just under 1 inch at the breech and features seven-groove rifling, circles on the muzzle face, dovetailed blade and notch sights, and "S McCosh" signed on top in script. The lock has game scene engraving and a "WARRANTED" marking. The rifle is equipped with adjustable double set triggers and primarily brass mounts, including a distinctive "National Road" patchbox with engraving. The oval wrist escutcheon and eagle engraved cheekpiece inlay are nickel silver. The full-length curly maple stock has beautiful figure and a nicely shaped cheekpiece.

Very good with dark brown patina on the lock and barrel, mild oxidation and pitting concentrated at the breech, attractively aged patina on the mounts, crisp engraving, legible signature, and generally mild wear. The stock is also very good and has very attractive flame figure, some small chips and cracks, repairs including the forend, and mild scratches and dings. Mechanically fine.