This is a vintage one piece Shaving Safety Razor is marked inside: "PAT. NOS. ON PACKAGE", underside: "REG. U.S. PAT. OFF. R 1 [Gillette diamond] MADE IN U.S.A." According to Badger & Blade I found it is from 1971. It has a black handle with a flared end. It is well used with some tarnish and wear. Some of the newer blades are made for use in these older double edge blade razors. It was cleaned and polished so ready to use. It opens and closes smoothly by turning flared end of the 3 inch long handle.