I haven't been much active in posting new stuff but I'm collecting labour action items more than ever.
Here's something that isn't a badge but it's related to labour actions. A plaque of the Festival of the Highway Builders 1959 (Festival graditelja autoputa 1959). The festival was held in Niš, Serbia. My grandpa was one of the delegates from his labour brigade at the festival and he recited some poems. The last photo shows him at the age of 20 (standing 5th from left) among other delegates, their brigade commander Krsto Popivoda (standing 2nd from left), who was a People's Hero and a Hero of the Socialist Labour of Yugoslavia, and famous Yugoslav actor Ljuba Tadić (standing 3rd from left).