Russian Pins Military ?? Age ??

[kdk1690]

I have aquired over 200 russian pins i think most are military, having a hard time researching them any help would be helpful, Thanks

[figtree3]

I don't think they are military. The letters that are in common on every pin stand for this expo center:

https://en.wikipedia.org/wiki/VDNKh_(Russia)

Each one also includes the name of a different part of the Soviet Union (Such as the Estonian Soviet Socialist Republic, etc.).

I don't know if you are still watching this query but thought I'd reply anyway.