

Help me date this map
In b4 Wine and dine it with some Chateau Molotov&Ribbentrop 1940.
I'm wondering how accurately WW2 experts on here can date this. It obviously comes from a time when the Soviets and Nazis were best buddies, so it might be an appropriate topic of discussion for the day of Putin's big parade :)
Edit: big version: https://i.imgur.com/lrF2Fu3.jpeg