20 Dinara OOUR Vrbas, Jajce

Yugoslavia's system of "associated labor" (udruženi rad) under the 1976 Law on Associated Labor created thousands of semi-autonomous enterprise units — OOURs — each legally permitted to issue internal payment instruments for use within their own workforce. The Vrbas enterprise in Jajce, a town in central Bosnia known primarily for its aluminum and electrochemical industry, issued these dinara tokens as wage supplements or canteen scrip rather than as circulating currency.

Enterprise scrip of this type was never catalogued systematically during the Yugoslav period, and most pieces survived only by accident — tucked in workers' coat pockets when the enterprises dissolved after 1991.