10 gauge. 28" Damascus barrels secured by a single key. SN: NSN. No finish, steel mountings, straight grip hardwood stock with checkered wrist. No external markings, Belgian proofs under barrels. Percussion lock lightly engraved with game scenes, double triggers, platinum blow-outs in bolsters. Steel buttplate and ramrod pipes, brass tipped wood ramrod. This was a fairly high grade gun when it was new but has subsequently had a hard life. Mr. Ness' tag notes that the gun was choked by V.M. Starr and they measure 10 modified. The tag further notes that the gun is a "great shooter - ready to go". The bores are really very fine so this might make a good blackpowder wing gun or a Frontiersman class Single Action Shooting Society competition shotgun.