Magazine plate camera in form of book, for 38 x 38mm plates. Lens missing, guillotine shutter with tension adjusting knob, plate carried in metal holder then pushed from upper compartment into focal plane and then into the lower compartment by sliding rod. Number on plate holder back visible through red window. No 1742. Marion & Co, 1934. Invented by Dr Rudolf Krugener.
This is the English edition of Krugener's Taschenbuch Camera, the cover, embossed in leather says 'Manufactured in Germany for Marion and Co. The Sole Agents'.