Soviet cameras - Cameras of USSR

The main purpose was to create a picture catalogue of all cameras, lenses
and appliances for photography that were produced in USSR, except for
filming and printing paper positives. I do not set myself a target to
inform how many of these or those cameras were made and their exact
manufacturing date.
The number of the produced cameras is so large, the majority of them you
will not find in any foreign catalogue. For convenience of browsing
and seeking I partitioned:

1. By the factory which produced and produces cameras

2. By he appliances for cameras, lenses etc.

3. In some cases by prewar and post-war cameras.

Knowing beforehand that it is beyond my power, I'm asking for your help and
inviting everybody to build this grandiose project together! Please send

high quality pictures of those cameras that you will not see here or you
think that you have taken better than me, I will exchange! I'm waiting for
the text

Translated to your native language and those will appear on the website. If
you have any remarks to the English version, please send your variants.

I'm waiting for your help and pictures!