The Guycot was invented in the late 1870s by Henri Guenot and Paulin Gay of France and was manufactured in very limited numbers. Less than 15 are estimated to survive. Despite being an innovative design, their underpowered "rocket ball" type cartridges did not have enough stopping power to be practical, and the mechanism isn't as reliable as other repeating firearms of the era. The only visible markings are the serial number on the butt and an "A" above the switch on the left. "1" is marked inside the grips. This rare pistol is chambered in 6.5mm cartridge similar to the Volcanic known as the Loron cartridge. The frame and grip house a chain which holds chambers for small needlefire cartridges. The chain is revolved until a chamber faces the barrel. At the same time a long firing pin is retracted. When the trigger is pulled all the way back, the needle like firing pin drives through a small opening in the base of the cup detonating the cartridge primer. The pistol can be fired as fast as the user can pull the trigger. The top of the frame has a bead sight at the breech and a notch rear sight integral that covers the loading port. It also has a folding trigger and sliding safety mounted on the left side of the frame.

Fine overall with mostly bright surfaces throughout, some light scratches and marks, minor oxidation, and general mild overall wear mostly from age and storage. The grips are also fine and have smooth oiled finish, light scratches, and minor handling and edge wear. The action needs some work but functions with some assistance to the trigger return.