the original and its copy.....Jupiter 13 1.5/125mm

http://www.ussrphoto.com/UserContent2/412023_Sonnar 1.5-12.5cm and Jupiter13 1.5-12.5cm .jpg

Two rarities!
By Thiele, this Sonnar was used in planes with a hand camera during WW2.
Do you know the mount of these lenses?

Thanks, Stefan.

The mount of the Zeiss one is a home-made M42, hence I would not know the original mount. The Jupiter has a screw mount of large diameter, not fitting to any of the known camera systems. Would anybody know out here what the Jupiter-13 was good for? Just to demonstrate the power of being able to copy a known lens? Probably not....