The pinfire method for firearms was credited to Frenchman Casimir Lefaucheux and patented in 1835. The system brought about early , if successful, use of a self-contained metallic cartridge to hold the priming compound and bullet which proved more efficient than competing designs of the day which still relied on separate loading of gunpowder and projectile. This gave rise to a slew of firearms utilizing the Lefaucheux system - revolvers, rifles and shotguns - and one such development emerged out of Liege, Belgium as the Model 1869 pinfire revolver in 9mm chambering.
The revolver was of a conventional design arrangement utilizing an open nickel-plated frame. The hammer was exposed at the rear and displayed with an elegant spur curvature. The barrel measured 5.55 inches and sported a forward sighting post to couple with a rear-set device for accuracy. The handle was integral to the frame and covered along both sides by a gripping surface. A military-style lanyard loop was affixed to the base of the grip. The trigger ring was of a large oval shape with a well-curved trigger set inside. The revolving cylinder, the heart of the pistol, housed six chambers for 9mm pinfire cartridges. A loading gate was present along the right side of the frame and an ejector rod sped ejection of spent casings from the cylinder. The pistol utilized a double-action mechanism in which a single pull of the trigger actuated both hammer cock and drop (as opposed to single-action requiring the operator to manually cock the hammer). A bayonet could be affixed to the underside of the barrel though its usefulness in combat is subject to debate.
There revolvers were appropriately marked with Liege proof marks to showcase their official government inspection.