Gentlemen,

I had a Numax once and the blasted thing was a disaster. The steel was bad and the grinding inept. No matter what I did, I just could not put a good edge on the razor. I sent it to a friend, a master honer, and he couldn't do anything with it, either. Finally I sold it as is, explaining my inability to sharpen it. There is no information available on the Numax. I assume it dates from the 1920s or 1930s in Solingen, Germany.