The smoothbore barrel gauges just over 6 bore at the muzzle (.93) and has a post front sight, "J.C. REILLY 316 HIGH HOLBORN LONDON" on top at the breech, and London proofs, "7" and "4573" on the bottom. The breech, locks, and furniture all have classic scroll patterns and engraved line borders. The serial number on the lower tang is faint. The stock is checkered at the wrist and has a flat buttplate. The address on the barrel indicates the gun was manufactured approximately 1835-1847 based on Joseph Charles Reilly's move dates. He entered the gun trade in 1835. It is not clear if he manufactured guns himself or contracted them out, but his son and successor, Edward M. Reilly is known to have been an air gun innovator. 6 bore guns were used for hunting elephants and other big and dangerous game in Africa and India in the 19th century.