Thomas Ketland Sr. was a successful Birmingham gunmaker and sold firearms and other products from 1760 until his death in 1816. Thomas Ketland, in partnership with William Walker, had a contract with the British Ordnance Department from 1799-1812 for manufacturing of these muskets. The barrel has a bayonet stud/blade front sight, and "RW" barrel maker mark between two deep Birmingham proofs at the breech. "KETLAND/& Co." marked at the center of the lock. Top mounted bayonet lug. Full length stock mounted with two sling swivels and brass fittings. Illegible two letter cartouche on the left stock flat, and two small illegible marks behind the lower tang.

Good as reconverted to flintlock configuration, smooth gray and brown patina on the barrel and lock with some patches of light pitting towards the muzzle, moderate flash pitting, and crisp markings in the metal. Stock is very good as lightly sanded and re-oiled with some light scratches and handling marks, a chip on the right below the barrel, and a hairline crack ahead of the rear lock screw. Mechanically excellent.