Here's a Boltax I with case. Rare subminiature camera in nickel for 25x25mm photos on 35mm film loaded on special spools. Serial number: 3963, made in the late 30's by the Japanese Miyagawa Seisakusho company. This is the first of the three versions. Good condition, with signs of moderate use. Shutter is sticky and the focusing ring is hard to move. The Picner Anastigmat 4.5/40mm lens has some haze. Case has some normal wear. Good luck!