50 Centavos

The Province of Iloilo issued this note during the Japanese occupation of the Philippines, when provincial and municipal governments were authorized — and in practice compelled — to produce their own emergency guerrilla or civilian currency as the Japanese Military Administration's peso notes lost credibility in the countryside. Iloilo's treasury issues from 1944 circulated alongside both Japanese occupation currency and clandestine guerrilla notes, creating a chaotic local monetary environment where exchange rates were effectively negotiated rather than fixed.

The S-prefix in the Pick reference places it in the Philippine specialized issues — wartime provincial scrip that was explicitly temporary and redeemable, in theory, after liberation. MacArthur's return to the Philippines in October 1944 made that redemption a live question sooner than most issuers expected.