20 Centavos

Apayao was among the smallest and most remote administrative units in the Philippines to issue emergency guerrilla currency during the Japanese occupation. The Sub-province sits in the northern Cordillera of Luzon, and its local government issued these notes in 1942 as Japanese forces disrupted normal commerce and made Philippine Commonwealth currency increasingly scarce or impractical.

Emergency issues from sub-provincial level authorities are rarer than those from larger provinces or municipalities, simply because fewer were printed and distribution was geographically limited. The P-S105 series from Apayao survives in small numbers today, partly a consequence of the province's isolation and the wartime conditions under which the notes were used and discarded.