Its quite a story, but I got this lens along with several other fantastic FSU and GDR camera stuff from a person in order to repair his Leica IIF. My Cyrillic is not that good, I somehow guessed.
After some puzzling I came to the conclusion that this has to be a lens for a Cine camera. It tried it on my Zorki 3, the lens register distance was correct (28.8mm) And the lens has rangefinder coupling.


Sorry for the bad images, its a very cloudy day here!
Maybe I should give it a try and shoot with it.
Greetings