Boat gun. The gun has a stock which is fitted with a brass ramrod pipe with a steel ramrod. There is also a very long plain brass trigger guard and a flat butt plate which is fitted with a swivel. The gun has a flintlock and a brass barrel flared at the muzzle. The calibre is 1.75 inches. The gun is engraved on the lockplate: 'COOPER LONDON'.

It is likely that the gun was taken by Admiral Sir Frederick George Denham Bedford during the Benin Expedition of 1894 where a large quantity of arms and ammunition was found -the armoury of chief Nanna against whom the punitive expedition was waged.