A razor for use in prisons and mental facilities is this Grafco Psycho-Lock Razor. German made for Graham-Field in New Hyde Park, New York, it's a nice looking piece of heavy brass/chrome. Chrome plating has some rough edges.
The razor is a long-screw three-piece (four, counting the key), where the nut that locks the cap in place is held in the handle by a brass ring. The nut appears to be an inverted slot-drive, with the key actually having the slot. Of further interest the square top of the handle that fits in the square slot in the head.
The razor is a long-screw three-piece (four, counting the key), where the nut that locks the cap in place is held in the handle by a brass ring. The nut appears to be an inverted slot-drive, with the key actually having the slot. Of further interest the square top of the handle that fits in the square slot in the head.