The Suruga Seiki Corp. made these Mihama Six cameras in the early 1950s. The camera
uses 120 rollfilm to make 6x6cm or 6x4.5cm exposures. An unusual feature is the use of
separate eye-level viewfinders for each format(!). The f/3.5 lenses were usually Mihama or Kepler
Anastigmat optics in NKS shutters. McKeown's Price Guide for Antique and Classic Cameras (1992-3)
only lists this Mihama Six camera for this manufacturer.
The Mihama 6 folder used 120 roll-film and took 6x6cm and 6x4.5cm photographs.