Browned Damascus steel barrels with beaded blade front and two leaf (marked "100" and "200") rear sight on the matted, flat solid rib which is marked "E. M. REILLY & Co. NEW OXFORD STREET, LONDON & RUE SCRIBE, PARIS", "HENRY'S PATENT" marked on either barrel ahead of the flats, single extractor, and London black powder proofs. Both flats are proof marked "39" for 39 bore, while not marked this rifle is chambered in .500 black powder express. The casehardened, back action hammer locks and receiver display classic tight scroll engraving with E. M. REILLY & Co. LONDON" on either lock. The gun features double triggers, carved fences, rebounding hammers, and individual hammer lock safeties. Beautifully figured, multi-point checkered splinter forend with engraved fittings including the wedge fastener and pistol grip stock with horn grip cap, cheekpiece, gold inscription oval marked with a stylized "B", and blued steel buttplate. Length of pull 14 7/16 inches. Weight 8 lbs 11 oz. Provenance: The Malcolm King Collection