Thank you for your Time and Knowledge. Scotty

Might be nice if I added the scans.

I had sent pics to one of my former exchange students, including 2 others he had. This was her response-

 

My pleasure. First, They have all different meanings, but they are not political thing(not that important or serious). Actually, it is first time to see that kind of flags for me. Because they looks old and it is not used nowadays I think. So, I asked to my friends and parents about them. I’m sorry but we only can assume where that flags used for.

But I’m pretty sure

First two flags are just the name of social or local union. Each of them sounds as Min-Chung(민청) and Dae-duk-gun-hoi-duk-myeon-dan-bu(대덕군회덕면단부).

And the last one is Ooh-seung-gi(우승기) which means championship flag from the labor union. And the long sentences on the back are about cheering up for something.

 

not exactly a verbatim translation, but the idea comes across.

Jerry

Seems to be for a socialist miners unions! Hope this helps