I can't say I've ever heard of that one. Only thing I can say is it has to be before 1900. My understanding is that after the Wilson Gorman Tariff Act in 1894 all razors had country stamped on the blade. At least those made by companies who wanted to trade with the US. I'm sure that is an over simplification and perhaps you already knew this but I figured I'd share that little bit. I hope that helps. Good luck