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Originally posted by BigMackCam Ha! That one is really polished up! I don't think it looked like that new. The lens finish was probably more similar to that of the mid-1960s Zenit E body it was originally sold with. Here is one in more typical condition showing original finish.
Image lifted from the manual focus forum (mflenses.com)
One of the better sites for sampling the variety of FSU cameras and lenses used to be Soviet Cams. The site owner has lost interest and is no longer maintaining the content and the server is often down.
http://www.sovietcams.com
As you may have guessed, it is difficult to find reliable information about the wide variation of former Soviet cameras and lenses. I have dabbled for several years in that space and have yet to find a Web site that is authoritative and complete. Jean Loup Princelle's "Russian and Soviet Cameras" is the recognized print authority, but the book is hard to find.
Steve