1931 - 36 Foth Derby is a simple viewfinder camera using 127 film in a
3 X 4cm format. Scissor type struts opens the lens board revealing the
bellows. Focal plane shutter. The lens is a f3.5 / 50mm Foth
Anastigmat. A rangefinder of either French or American manufacture
could be added to the top plate to create the Foth Derby II.