1 Peso

Guiuan is a municipality on the southeastern tip of Samar island in the Philippines — and in 1943 it was under Japanese occupation. Like dozens of other Philippine municipalities during this period, local officials issued their own emergency currency to keep commerce functioning when both pre-war Commonwealth pesos and Japanese Military pesos failed to circulate reliably at the community level. These municipal guerrilla notes, as collectors broadly categorize them, were backed by nothing more than local authority and the expectation of eventual redemption.

Guiuan's geographic isolation made it a significant Allied staging point when U.S. forces returned to the Philippines in late 1944, which likely disrupted whatever redemption process the municipality had intended.