7.65mm caliber, with two superposed 6" round barrel. With proof marks, possibly French, on the barrel and on the left side of the frame above the folding trigger. The double action pistol fired sequentially through dual superposed chambers lined up with the large cylinder with two rings of ten chambers. The revolver has a loading gate and is absent of an ejector rod. With checkered walnut grips, and a lanyard ring on the underside of the butt.
The revolver has a flat even gray patina, with staining throughout. The grips are worn. The bore and mechanics are very good.