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.