Manufactured circa 1800-1810. The brass barrel is four stages with the bore flaring at the muzzle to approximately 1 inch, "London" in script on top, and turned moldings. British proofs including boxed "T-K" on the upper left. The sprung bayonet is fitted beneath the barrel, and the iron ramrod is housed on the left side. The engraved iron standing breech has a sighting groove. The flat beveled lock has a stepped tail and is signed “Ketland/& Co.” The walnut, half length stock is fitted with engraved brass furniture including a trigger guard incorporating the bayonet release trigger on the finial. "DE" is marked behind the trigger guard tang. The bore is estimated at 20 gauge.