5 Yen

Dai-Ichi Kokuritsu Ginko — the First National Bank — was not a central bank but a private commercial institution operating under the National Bank Act of 1872, modeled closely on the American national banking system. It held the unusual distinction of being Japan's first Western-style joint-stock bank, and its note issues circulated alongside those of dozens of other national banks before the Bank of Japan consolidated monetary authority in the 1880s. By 1906 these notes had long lost their status as legal tender for most purposes.

The print date of April 1945 almost certainly reflects a later reprinting or archival reproduction, not original circulation stock — the issuing bank itself had ceased note-issuing functions decades earlier.