10 Sen US Military Currency - A-Note

The "A-Note" series was produced by the United States Bureau of Engraving and Printing for use in Japan following the August 1945 surrender, replacing military scrip with a currency intended to circulate alongside — and ultimately suppress — the existing Bank of Japan notes. The series letter "A" printed on each note was a security device, allowing occupation authorities to demonetize the entire issue by series if counterfeiting or black market manipulation became unmanageable.

SCAP never fully replaced BoJ notes in general Japanese circulation; the A-Notes were largely confined to use within military and occupation administrative channels.