I have 3 of these. Phillipe is right that it is about the same size as a Kiev 3. It has a parallex correction finder that is comparable to Leica M's for brightness,and the whole viewfinder area could be used roughly for 35mm wideangle lens. It has an automatic return frame counter, and a buit-in meter. The camera can be both nob and lever wind. Cameras made later than 1973 has a frame line in the finder for 85mm lens. This camera must have been very expensive when new for all these new features.
In my other thread, I said it is the most complex rangefiner camera ever made.😀
Cheers,
Zhang