5 Rubel Port Kunda Zementfabrik

Port-Kunda, on Estonia's northern coast, was occupied by German forces in late summer 1941. The cement factory — one of the oldest in the Baltic region, established in the 1870s — continued operating under occupation, and this scrip was almost certainly issued to pay local workers when Reichskreditkassenscheine were in short supply or deemed impractical for small internal transactions. Factory-issued currency of this kind was technically illegal under German occupation monetary policy, which makes its survival worth noting.

The official stamp substitutes for any formal security printing. Scrip from Estonian industrial facilities during the 1941–1944 occupation is genuinely rare; most was redeemed, destroyed, or simply lost.