Flintlock swivel guns were commonly used on a wide variety of military and merchant vessels in the early 19th century, and could be used both for fighting enemy personnel and for signaling. The barrel has two London proofs on the left at the breech. The lock is marked "LACY & Co/LONDON". Lacy & Co. was active between 1815-1835 and was known to have been a contractor to Ordnance. Brass fittings including the ramrod ferrule, sideplate, trigger guard, and buttplate.