Frank Six
The Frank Six was a series of 6×6 folding cameras produced at the beginning of the 1950s by the Japanese company Tōsei Kōki. Externally they looked somewhat similar to the early models of the Olympus Chrome Six, with an horizontal folding bed, a tubular optical finder centered on the top plate, an advance knob at the left and an accessory shoe between both. However, the two cameras are probably unrelated.