A RARE FRENCH D.B. 16-BORE FOUR-SHOT SUPERIMPOSED LOAD PERCUSSION SPORTING GUN with browned twist barrels (browning worn) inscribed in gold on the raised rib 'Vrai Damas Anglais', the underside at the breech signed 'Couturier-Fournier', scroll engraved tang, signed scroll engraved locks and hammers, figured walnut half-stock (minor repairs, possibly a working replacement), fluted butt, scroll engraved iron mounts including shaped butt-plate and scroll trigger-guard (finial incomplete), iron sling swivels, later brass-tipped ramrod, and traces of original finish, by Reussel(?) à St. Etienne, mid-19th Century