1 Cent (0,01 US$)

Bank Polska Kasa Opieki — PKO — was a state-controlled foreign currency institution, not a conventional central bank. These cent denominations were part of a series of dollar-denominated vouchers issued for use in Pewex hard-currency shops, where Polish citizens could spend remittances received from abroad without those dollars passing through the black market. The regime's motive was straightforward: capture foreign exchange before it disappeared into unofficial channels.

Printed domestically in Warsaw despite the US dollar denomination — an unusual arrangement that underscores the purely internal function of the series.