LeFaucheux, also spelled LeFauchaux, is a term that has come to be generally applied to a wide range of European made pinfire revolvers from the 2nd half of the nineteenth century. The pinfire ignition system was invented by Casimir Lefaucheux in 1836 and perfected in 1846. In 1852 Casimir's son, Eugene, patented the bored-through cylinder in Europe leading to the introduction of the first effective metallic cartridge revolvers. The LeFaucheux firm was prolific, producing pinfire revolvers for civilian and military markets. Many pinfire revolvers made by other European firms will be found marked "LeFaucheux Sytem" or "LeFaucheux Brevete" or similar wording. This indicates the pinfire system and not necessarily manufacture by the LeFaucheux firm. The pinfire cartridge consists of smooth rimless case that contains powder charge and percussion cap. Pin protrudes from side of this case at rear and when struck by hammer is driven into cap, thereby igniting charge and firing weapon. Pistols for this cartridge are slotted at end of cylinder to allow pins to protrude and be struck by downward blow of hammer. In 1856 the LeFaucheux revolver was adopted by the French Navy - the first metallic cartridge revolver selected as a military sidearm. It was widely used by both sides in the American Civil War. Lefaucheux type revolvers were made in many calibers and configurations. Values shown are generalizations for mid-sized well made revolvers. Premiums are paid for large 11 to 13mm caliber, military issue, purse holsters, ornately decorated specimens, and those with folding blades. Large premiums are paid for high capacity (up to 20 rounds), double barrel pinfire revolvers, or those with fixed blades. Pinfire revolvers will usually bring less if they are poorly made or smaller calibers, including most small folding trigger specimens. Engraving is commonly found on commercial pinfire revolvers, and will not necessarily bring a premium unless expertly rendered. Also see listings for Francotte pinfire revolvers. Reader input in expanding LeFaucheux and pinfire revolver listings is invited.