5 Rupees

Ceylon's wartime currency arrangements were complicated by the island's strategic importance to Allied operations in the Indian Ocean. The Government of Ceylon — rather than a central bank — remained the direct issuer of low-denomination notes well into the 1940s, a colonial administrative holdover that persisted even as the war restructured nearly everything else about the island's economy.

Thomas De La Rue printed this series in London, which created real logistical exposure once German U-boat activity in the Atlantic intensified. Whether stocks were pre-positioned in Ceylon before the April 1942 Japanese naval raid on Colombo is not firmly documented, but supply continuity for circulating currency was a genuine operational concern for the colonial administration during that period.