A scarce 12 bore pinfire 'Lockfast' double gun by J.D. Dougall

A scarce 12 bore pinfire 'Lockfast' double gun by J.D. Dougall, twist browned barrels 30 in., hollow top rib engraved 'J.D. DOUGALL. 23 GORDON. ST. GLASGOW.', London proof; tang, backstrap, action and back action locks all with foliate scroll engraving and the locks marked 'DOUGALL'; barrels locking against projecting discs in the standing breech, action opened by an articulated lever pushed up and forward and acting on a cammed hinge pin, chequered straight hand stock; in a later lined oak case with brass bound corners.