100 Roepiah Japanese Occupation

The Japanese occupation currency issued for the Netherlands East Indies was produced in Japan and shipped in bulk to the occupied territories — a supply chain that itself became a liability as Allied naval interdiction tightened after 1943. The 1944 series arrived late and in quantity, flooding an economy already destabilized by earlier Japanese-issued notes that the occupation authorities had used to purchase goods without restraint. Inflation followed predictably.

After liberation, the Dutch colonial administration refused to honor any Japanese occupation currency, rendering the entire series worthless overnight. Notes that never left Japanese warehouses occasionally surface in high grade for exactly that reason.