This blunderbuss from c. 1813-1825 has an approximately 8 bore barrel that flares to 1 1/2 inches at the muzzle. The barrel is fitted with a folding bayonet and is marked with "MANCHESTER" on top and Birmingham proofs. The lock is marked "WM SHAW" and has light floral engraving, a stepped tail, sliding safety, and frizzen spring roller. The furniture is brass with floral engraving, including a pineapple finial on the trigger guard.

Fine with dark brown patina on the iron, mild pitting, attractive aged patina on the brass furniture, and mild overall wear. The stock is very fine and has crisp checkering, mild dings and scratches, a few minor flakes, and some thin cracks at the breech on the left. The bayonet does not automatically latch when released, but the gun is otherwise mechanically fine.