Interesting is the speed-dial with 1/1000. The latest 1/1000 should occur on early Fed-Zorki from 1949, but not on Zorki-1a/b.
The grip on the speed-dial is also interesting, I never saw this on a Zorki. Where is it from?
Thanks Lenny
http://www.ussrphoto.com/UserContent/2242015_Zorki-1 Bertacchi.JPG