A rare 19th century 1851 William Greener whaling harpoon bow gun, maker's name and details to the barrel 'Inventor and Sole Maker Birmingham 1851'. Muzzle loading with sighting bar raised on brass pillars, Bronze hinged cover to the single cast iron hammer and two percussion cap striking nipples, evidence of another covering to this now absent. Oak stock. Fired by a lanyard connected to a hidden trigger. The cast iron yoke on spike mount to allow swivel fitting to the bow, length 127 cm. Diameter 4.5 cm (barrel). Fairly complete. Note: The Greener gun was regarded as the best of the open whaleboat guns.