I haven't seen one of these before
No, I was searching for an AC clone to buy. Instead a just got a DX, SS, Captain and CJB to replace my missing RG and CJB.Thanks for posting this interesting find. Is it your razor? I ask because it looks like the leading edge might be a little corroded or uneven...but perhaps not affecting the shave. My first thought was that spring mechanism looks like it may not hold fast and tightly enough along the full length of the blade, but after more thought I can believe that it works but not have as good a fit and finish as the Feather or Kai.