U.S.GEM razor. 11/16th inch 3/4 Hollow U.S.GEM, that is all that is on the razor. No other info that I can find on it, on the internet. Not a lot out there, that I can see. I looked up the history of GEM, who did make Straights from 1903-1907, before making Safety Razors. Anyone care to add to this razors history? What I have might be wrong.