This is a D.A. 11mm Cased Perrin Model 1865 revolver. The matching serial number is 5076. The mechanical function is very good, crisp and tight. The bore is very good bright and shiny with strong rifling. The inside case lid with the name Perrin and Paris are faint. The front sight has damaged the green fabric lining. There is a cleaning rod in the case but the other compartments are empty. There were not many Parrin cartridge revolvers made.