Logo Title
obverse
reverse
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Context
Years: 1955–1989
Issuer: Japan Issuer flag
Ruler: Shōwa
Currency:
(since 1871)
Total mintage: 29,021,402,000
Material
Diameter: 20 mm
Weight: 1 g
Thickness: 1.2 mm
Shape: Round
Composition: 100% Aluminium
Magnetic: No
Technique: Milled
Alignment: Medal alignment
Obverse
OBVERSE ↑
flip
Reverse
REVERSE ↑
References
Y: #Click to copy to clipboard74
Numista: #1590
Value
Exchange value: 1 JPY = $0.01

Obverse

Description:
Bamboo sprout center, authority above, value below.
Inscription:
日 本 国

一 円
Translation:
Japan

One Yen
Language: Japanese

Reverse

Description:
Value in circles, date beneath.
Inscription:
1

昭和三十九年
Translation:
1964
Language: Japanese

Edge

Plain

Categories

Plant> Tree

Mints

NameMark
Japan Mint

Mintings

YearMint MarkMintageQualityCollection
1955381,700,000
1956500,900,000
1957492,000,000
1958374,900,000
1959208,600,000
1960300,000,000
1961432,400,000
1962572,000,000
1963788,700,000
19641,665,100,000
19651,743,256,000
1966807,344,000
1967220,600,000
1969184,700,000
1970556,400,000
1971904,050,000
19721,274,950,000
19731,470,000,000
19741,750,000,000
19751,656,150,000
1976928,800,000
1977895,000,000
1978864,000,000
19791,015,000,000
19801,145,000,000
19811,206,000,000
19821,017,000,000
19831,086,000,000
1984981,850,000
1985837,150,000
1986417,960,000
1987958,520,000
1987230,000Proof
19881,268,842,000
1988200,000Proof
1989116,100,000

Historical background

In 1955, Japan's currency situation was one of remarkable stability and strength, marking a decisive turning point after a decade of postwar turmoil. This year fell within the "Jimmu Boom," Japan's first major period of sustained economic growth since the war. The yen, which had been radically reformed in 1946 and pegged at 360 yen to 1 US dollar in 1949 under the Bretton Woods system, maintained that fixed exchange rate. This peg, administered by the Bank of Japan and supported by the Dodge Line austerity policies and later U.S. procurement during the Korean War, provided a crucial anchor for export-led industrial recovery.

This stable exchange rate was a cornerstone of Japan's economic strategy, fostering a predictable environment for trade and investment. Major industries like shipbuilding, steel, and textiles were becoming globally competitive, and the fixed yen undervalued their exports, fueling rapid economic expansion. The currency's stability was further bolstered by Japan achieving balance-of-payments equilibrium in the mid-1950s, moving away from chronic deficits and reducing reliance on American aid. Domestically, inflation was finally tamed, with wholesale price inflation near zero, allowing for sound monetary policy and growing public confidence in the yen.

Thus, 1955 represented a moment of consolidated achievement rather than crisis. The yen was not a subject of international speculation or devaluation fears, but a reliable tool for growth. This stable monetary foundation, coupled with rising productivity and political consolidation under the Liberal Democratic Party, set the stage for the "High-Speed Growth" period that would soon follow, transforming Japan into an economic superpower.
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