Designed by A. Noël in 1865 and manufactured by Gouery, Canat et Cie in Paris, this is a .28 caliber, 10-shot turret revolver. It has a folding double-action trigger, and is actually a remarkably svelte pistol, ideal for a gentleman’s coat pocket (as one does in 1865). Best as I can tell, about 500 of these were made, almost certainly falling out of favor because of the availability of much more modern systems. Noël’s gun is a pellet-primer design, which was fairly old technology a decade before these were patented.