10 Centavos Dotted border, series at top

The Mindanao Emergency Currency Board was one of several provincial bodies authorized under Japanese occupation to issue guerrilla currency — notes produced and circulated by Filipino resistance forces to keep local economies functioning outside Japanese-controlled channels. Mindanao's geography made it a particularly active center for this kind of parallel finance; Japanese control of the island was never complete, and interior communities needed a functioning medium of exchange.

The dotted border variant is catalogued separately from the plain border type, suggesting these distinctions mattered administratively at the time of issue, not merely to later collectors.