1 German Mark Vrbas, Jajce

OOUR — "osnovna organizacija udruženog rada," a basic organization of associated labor — was the fundamental economic cell of Yugoslav self-management socialism. These workplace-issued scrip notes were a practical consequence of that system: when state liquidity tightened in the 1980s, enterprises routinely issued their own internal currency to pay wages and allow workers to purchase goods at the company store or canteen.

"Vrbas" Jajce was an industrial enterprise in central Bosnia. The note circulated exclusively within that closed economy — worthless outside the factory gates.