Japanese razor, a remarkable achievement by Miki. I believe it's a two-piece construction. Total length 153mm, blade width 21mm, blade length 40mm, back thickness 5mm. The body showed no signs of use, but there was some rotary tool work on the front hollow grind, which I corrected, leaving a little steel near the edge as the steel thins. I've ensured it's suitable for future use. There are also some marks on the back hollow grind, but they don't affect its use.