100 Dinara DP Željezara Zenica, Zenica

Željezara Zenica was one of Yugoslavia's largest integrated steelworks, and like many major socialist enterprises it operated a parallel internal economy — issuing scrip redeemable within the factory's own network of canteens, housing, and social services. These notes were not legal tender but functioned as a controlled wage supplement, binding workers to the enterprise's ecosystem.

The printer, Zavod za Izradu Novčanica, was the official Yugoslav banknote production facility in Belgrade — its involvement here is notable. Factory scrip printed on filigree security paper by a state mint-level printer was an unusually serious production for what was essentially a closed-loop voucher.