Vintage/ East German (DDR) military rank insignia sleeve patch for the Kampfgruppen der Arbeiterklasse (Combat Groups of the Working Class)
Kampfgruppen der Arbeiterklasse (GDR paramilitary forces)
Three horizontal red bars stitched onto an olive-drab/grey fabric background, denoting a specific leadership rank tier within the unit structure.
see pics for scale
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old store stock/ new, stapled on retail card as shown/ note that description on the rear UPC sticker doesn't match the items on the cards