I recently found this interesting original Junkers works picture showing a strange double-hull flying boat.
It must be a project since I cannot find anything at all in the books I have on Junkers.
Plane is on reverse side of photo described as 'Junkers Junkerissene' but that does not ring any bells.
Project must date around 1935-1936 and because of rudder "colors" being similar to Dutch Marineluchtvaartdienst scheme some people think it is a competing Dornier Do-24 design.
Information is very welcome!!!