Single bead sight on the smooth concave rib with "WATSON BROS. GUNMAKERS/13 PALL MALL. LONDON" marked on the barrels, 2 1/2 inch chambers with ejectors, standard proofs on the flats, and full chokes. There is a small importer mark on the underside of the barrel rib at the muzzle. The receiver and locks have light border engraving with fine gold inlaid Watson Bros. makers marks, dual triggers, and automatic sliding tang safety. Checkered forearm with engraved fittings and Anson latch and a straight grip stock with tear drop flats, blank initial oval, and added checkered walnut butt. Barrel and stock measurements are: bore diameter at 9 inches from breech .741/.739 inch; minimum wall thickness .030/.030 inch; drop at comb 1 3/8 inches; drop at heel 1 7/8 inches; length of pull 15 5/8 inches.