5 Cents Japanese Government

Japanese military currency for occupied territories was produced without any indication of intended circulation area — the same notes were deployed across multiple occupied zones in Southeast Asia, which was a deliberate policy to simplify logistics and complicate Allied counterfeit efforts. The P#10 5 sen issue was part of the broader "Southern Regions" series authorized following Japan's rapid territorial expansion in late 1941 and early 1942.

The watermark is the one meaningful security element, though it did little to deter local forgeries. These notes were declared worthless by Allied decree at the end of the war, and vast quantities were destroyed or abandoned — yet the small denominations circulated hard and survivors in clean condition are genuinely uncommon.