I have one. it was my grandfather's. found information some years ago. made in Germany, exported to Chicago USA. was also available at Harrod's of London, and could be engraved. It and the fish knife he also had were made of elk horn. My grandfather started a moving business in Vancouver, BC 1938? may have picked them up when clearing out houses when people abandoned them and their possessions during the depression. he also started going to auctions, not sure when. may have got it there. It does not have a number on it. just says Germany on the blade. It has silver on the ends and the label on case of the knife is also silver. you may have found more information by now, but thought I would pass this information on.