Please refer to ID Help thread for background. These pictures show my concerns about the head of this Single Ring Old. Note the machined marks on the edge, and the sharpness of the teeth. My final guess, for what it's worth, is a Gillette clone, or a strange bunch of machining during repair. Any more educated guesses than mine would be appreciated. The rest of the razor, case and blade cases appear original. The threading checks out at 10-32, which would indicate US manufacture.