5 Dinars

Kuwait's 1990 Iraqi invasion created one of the more unusual security crises in modern banknote history. Iraqi forces looted the Central Bank's vaults and seized substantial stocks of unissued currency — including notes from this series — which subsequently appeared in circulation inside Iraq and on regional black markets. The Kuwaiti government responded after liberation by demonetizing the entire series almost immediately, rendering all outstanding notes worthless regardless of origin.

Serial number prefixes 18 through 20 are specifically attributed to the stolen consignment. Notes bearing those prefixes are technically invalid but remain collectible precisely because of that provenance.