It resembles the Model 1840 cavalry saber (what was termed in the US as the wrist breaker) but I need something in scale to measure it by. Is there any writing, or proof marks on the blade near the handle? Is the blade sharpened? If the blade is unsharpened and there is no writing on the blade I would say the weapon is of European manufacture. The US Model 1860 is very similar, although a bit lighter and almost always has the manufactures information on the blade.