2 Dinara Rudstroj, Kakanj

Rudstroj was a state-owned construction enterprise operating in socialist Yugoslavia, and like many larger firms in the postwar decades, it issued internal scrip to cover wages or canteen transactions when central bank liquidity was slow or administratively complicated. Kakanj, a coal-mining town in central Bosnia, had several such industrial issuers — Rudstroj being among the less documented. The "d.d." designation (dioničko društvo) reflects the older Austro-Hungarian corporate terminology that persisted in Yugoslav commercial usage well after nationalization.

The stamp security feature is typical of enterprise-issued scrip, where a factory seal substituted for printing-house controls. Without the stamp, these notes were considered void.