Developed in the 1850s in Paris, France, the Jarre is loaded via a 10-round horizontal block which is pre-loaded with pinfire cartridges and automatically advances between chambers when the pistol is cocked. The trigger is a combined single/double action arrangement, comparable to the Adams or Starr revolvers, with a cocking lever that extends through the trigger guard; one can pull the lever to cock the hammer and then pull the trigger to discharge, or they can pull the trigger directly for a double-action shot. This arrangement represented a significant increase in on-hand firepower for the era, even when compared to other repeating pinfire arms of the same time period. It has a fixed blade front and hammer notch rear sights with matching numbers on the frame and magazine, the Jarre & Company logo on the left side of the breech, smooth hammer and smooth grips.