"The Formidable" was the name given to one of many different civilian pocket-carry revolvers made by the French Manufrance firm in St Etienne. This particular model was introduced in 1895, although it went through a significant redesign in 1902. The example I have here is the later pattern, which was sold until 1916 (when arms production completely shifted to military weapons). It is a 5-shot, swing-out cylinder double action revolver chambered for the 8mm French Ordnance (aka 8mm Lebel Revolver) cartridge. The double action trigger pull is very heavy at about 17 pounds, and the hammer is bobbed to prevent snagging in a pocket.