Badge "Shockworker Of The Stalinist Campaign".

[Chuck In Oregon]

It's commonly called a Stalin's Shockworker Labor Badge, or some variation of that. There are several varieties. I have a number at home that need to be sorted out later this year. One large site offers two varieties for sale at widely divergent prices, presumably only because one variety pre-dates the other. I have never been clear on exactly what one did to earn this badge. Someone once corrected me when I offered that it must be railway-related. He could have been right, too, since I couldn't back up my opinion. It was awarded for about twenty years beginning in the mid-1930s and you can find it in most of the general reference books.

Chuck In Oregon
Currently, Chuck In Tbilisi