I think yes, they are quite a lot of different manufacturers marking.
The Germans made it a lot for the Soviets as war damage. For the canteen cover there are many different tissues. I do not have time, but I'll try to take pictures this week.
There are examples of reparation covers and markings:
http://flyagi.livejournal.com/4657.html
кру́то! спаси́бо това́рищ!
Similar Threads
Bookmarks