Dear Psy,
Thank you very much for the source you suggest.
Luckily, I have downloaded and translated, but alas not studied, all the chronology from 1916 to 1946.
For those that do not know it, it is a unique and almost superhuman work of twenty years, from Prof. Ivan Rodionov, that contains an incredible amount of information and is extremely large: the three documents for 1940 are about 3000 pages long in English.
It is so big that it is more of a Gold Mine than a resource.
To give an idea of the amount of data it contains, here is a very small piece about the painting process (of the SB) in Zavod 125 at Irkutsk in 1940: The technological process of painting the wings and other parts of the aircraft (center section, fuselage, empennage) is carried out in the following sequence: the finished frames are sprayed with A-14 paint, after which they are dried for 6-7 hours at 15-29. Sheets are primed with AM G-1 or AL G-1 paint and one side is covered with A-14 paint again. The doused wing goes to the paint shop, where it is degreased, cleaned with canvas No. 00, and degreased again with gasoline. After that, it is wiped off the bypass and sprayed with aluminum powder over the surface and the connector. The doused wing goes through the entire painting process in 24 hours.
I would say that it fits nicely with the findings of your very interesting posts about the SB colors, adding the information that SB exterior in 1940 in Zavod 125 were painted silver.
Being an human work, it cannot contain everything: up to now I have not found the Zavod 21 report for 1940, even if I would not be surprised if it will appear in the next, 14th release.
You can find the STATE DEFENSE COMMITTEE REGULATIONS No. 3576s dated June 15, 1943 About aviation paints and varnishes and it is a breeze to translate it, but the annexes of the document are not present.
But you are absolutely right, that you could do several historical works using this resource alone.
There are no photos, but for those you can use a resource that I regularly visit, a facebook account, at
https://www.facebook.com/DLinevich, were a certain Mr. Linevitch presents historical photos and documents, recently a magnificent photo of the experimental long-range bomber Ilyushin TsKB-30, September 1936.
Regards
Daniele