This intimidating and beautiful weapon was designed by Joseph-Celestin Dumouthier in Paris in the mid-19th century. His surname is regularly seen spelled both as Dumouthier and Dumonthier in period sources and modern works. He was active from 1840 to around 1900 and is listed in period sources as originally from Houdan in northern France. Bladed pistols had, by that time, already been manufactured for multiple centuries in Europe for use as hunting sidearms used to finish off wounded boars and other game. This example would likely have been a presentation piece or gift given its ornate nature. Some of these fascinating weapons are known to have been given to world leaders, including Emperor Maximilian I of Mexico (on display at the Art Institute of Chicago). It has scrollwork patterns etched along the 11 inch dagger blade, both barrels, and the guard. The blade is marked "DUMOUTHIER A HOUDAN" inverted below the the right barrel and "BREVET DVN" inverted above the barrel. The upper section of the quillions pull back revealing the nipples and serve as the hammers. When the right hammer is pulled back, the folding trigger extends. Pulling the trigger first engages the right hammer, and then, once the trigger is reset, it can be pulled a second time to engage the left hammer. The scabbard has scroll engraving on the German silver fittings.

Very fine with mostly smooth gray patina, some minor pitting, slight chip at the tip, and excellent edges. The scales/grips are fine and have age cracks, yellowed patina, a rectangular splice on the upper right, and a splice at the left heel. The scabbard is fine with flaking and moderate wear on the body and minor wear and distinct designs on the fittings.