let me show you one of the earliest Lubitel cameras. The particular version comes with "Leningrad" markings on the frontplate (underneath the lens), 6 visible screws on the side-plate. It's interesting to mention, that my camera #016760 still has special spring in filter compartment (like on early Komsomolets cameras, we were disscusing this Topic some time ago ...
http://www.ussrphoto.com/UserContent/DSC00344.JPG
Best Regards,
Aidas
