Blued steel chopper lump barrels with wide matted solid rib, ramped beaded blade front sight with flip up "moon bead", three leaf (one standing, two folding) express notch rear sight, automatic ejectors, barrels marked "ARMY & NAVY/C.S.L. LONDON" on the left and right respectively with the load, bullet, and case dimensions for .450/400 3 1/4" also noted on the barrels, and London nitro proofs on the flats. Box lock action with bushed firing pins, dolls head rib extension third fastener, dual triggers and manual sliding tang safety. The receiver is engraved with tight English scroll patterns with "ARMY & NAVY C.S.L." markings on both sides, and matching engraved trigger plate and guard. Checkered walnut pistol grip stock and forearm with engraved fittings, engraved steel grip cap, raised cheekpiece, blank initial oval, and solid rubber recoil pad. With modern manufactured cloth and leather takedown case. Stock measurements and weight are: drop at comb 1 3/8 inches; drop at heel 2 inches; length of pull 14 5/8 inches.