combination of knife, revolver and knuckleduster. Knife pistols with folding blades were popular in England during the mid-Victorian era. These were made by Unwin and Rodgers, used black powder, and were available in various small calibers. Like the modern Swiss Army knife, they contained a variety of tools, from blades to corkscrews, and were often used by sailors. A modern version that fires .22 caliber rimfire cartridges, known as the Defender, is still in production. Belgian gunsmiths made revolvers with Bowie knife blades, some of which were used by French officers during the Crimean War and Franco-Prussian War. Gallery References External links The Mariners' Museum Video describing mechanical operation and history of an Elgin Cutlass Pistol Pistols Early Modern European swords Modern European swords 18th-century weapons 19th-century weapons Combination weapons American Civil War weapons Guns of the American West