The DOSAAF successor to Osoaviakhim in 1951.
"Ministry of education, Central Committee DOSAAF of Latvian SSR"
"Transitory banner for first place in socialist competition among the primary organizations of DOSAAF secondary schools"
Interestingly, the banner text is written with a gross mistake, unacceptable for such an object as a "red banner" - missing preposition "в" between words "место" and "социалистическом".
The correct text should look like this:
"За Первое место в социалистическом соревновании"
Great info guys. I appreciate it very much!
"Only a real risk tests the reality of a belief." - C.S. Lewis