0.5 Riel / 5 Kak Democratic Kampuchea

The Khmer Rouge abolished the National Bank of Cambodia and physically destroyed Phnom Penh's banking district within days of seizing power in April 1975 — money was declared obsolete and the population was forcibly evacuated from cities. These notes were printed in anticipation of a new monetary system that the regime ultimately never implemented during its rule. Currency did not circulate under Democratic Kampuchea; the notes were stockpiled and essentially unused.

The printing date in the catalog data appears to be a data entry error — 30 April 1945 predates the Khmer Rouge by three decades.