British Double rifle, 70 caliber Percussion. 29 1/2" heavy barrels marked on the rib "W.W.Howell RN". 3 folding leaf and an 800 M rear sights. ID'd to Willoughby Wilton Howell RN who was a Cadet on the HMS Rattlesnake. Much history on this RN and the Rattlesnake. Browned overall with a VG-VG+ stock. No relation to Thurston Howell III from Gilligan's Island. Antique.