10 Dinara Petrolunion, Belgrade

Petrolunion was a Yugoslav petroleum industry business association — a "poslovno udruženje" being a federated commercial grouping rather than a state bank or government ministry. This note is a company scrip or internal payment voucher, not legal tender, issued for use within the organization's network. Such instruments were not uncommon in Yugoslav self-management socialism, where large enterprises and associations sometimes issued their own circulating media for internal transactions, canteen credits, or worker settlements.

The irony of having the National Bank's own security printing works — the Zavod za Izradu Novčanica — produce what is essentially industrial scrip says something about how Yugoslavia's economic structures blurred the line between state and enterprise.