Catalog
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| Issuer | Allied Military Authority (United States) |
|---|---|
| Year | 1945 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Yen (1871-date) |
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| Obverse description | Log in to see details |
|---|---|
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| Reverse lettering | ISSUED PURSUANT TO MILITARY PROCLAMATION 軍事布告に基き發行す (Translation: Issued pursuant to military proclamation) |
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| Variants | P#69a - serial # prefix / suffix A-A P#69b - serial # prefix / suffix B-B |
| Comments |
The B-Yen series was introduced by American occupation authorities in September 1945 specifically to separate military spending from the existing Japanese currency supply — a direct response to fears that uncontrolled dollar-yen exchange would accelerate the inflation already destabilizing the economy. The "B" designation distinguished these notes from Japanese-issued yen, and occupation personnel were formally required to use them rather than standard yen.
In practice, the separation broke down quickly. B-Yen leaked into general circulation, black market exchange rates undermined the official peg, and the series was withdrawn in 1958 when Okinawa's monetary arrangements were rationalized. The notes were printed by the American Banknote Company.