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100 Yen Coin

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Title: 100 Yen Coin  
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100 Yen Coin

One Hundred Yen
Value 100 Japanese yen
Mass 4.8 g
Diameter 22.6 mm
Shape circular
Composition Copper 75%, Nickel 25%
Years of minting 1957–present

The 100 yen coin (百円硬貨 Hyaku-en kōka) is a denomination of Japanese yen. The current design was first minted in silver in 1959 and saw a change of metal in 1967.[1] It is the second-highest denomination coin in Japan after the 500 yen coin.


The first 100 yen coin was issued in 1957 and featured a phoenix on the reverse. It featured English language writing in addition to Japanese. This design was issued in 1957 and in 1958.[2]

In 1959, the design was modified, removing the English wording, and changing the reverse side to show a sheaf of rice. The metallurgy remained unchanged. This design was issued every year from 1959 to 1966.[3]

The current design for the 100 Yen coin was first issued in 1967. The metallurgy was changed from the former 60-30-10 ratio of silver-copper-zinc to a ratio of 75-25 copper-nickel, with the weight and diameter of the coin unchanged. The reverse side was changed to show sakura blossoms and the denomination in Japanese.

The coin shares, alongside with the 50 yen coin, the emperor's rule date (26 in 2014) expressed with Latin numerals instead of in Japanese numerals.


  • In 1972 a 100 yen coin commemorated the 1972 Winter Olympics in Sapporo. The Olympic Torch remained on the obverse while the rings moved to the reverse.[6]
  • In 2015, a new series of 100 yen coins will be introduced to commemorate the 50th Anniversary of the inauguration of the Tōkaidō Shinkansen train service. The coins are minted under a different composition of cupronickel, consisting of 87.5% copper and 12.5% nickel.[9][10][11][12][13][14][15]



  1. ^ "Operations Coins Currently Minted: Japan Mint". Japan Mint. Retrieved 20 July 2010. 
  2. ^ y77 100 Yen (1957-1958)&query=Japan
  3. ^ y78 100 Yen (1959-1966) silver&query=Japan
  4. ^ y79 100 Yen (1964) Olympic Games&query=Japan
  5. ^ y83 100 Yen (1970) Osaka Expo&query=Japan
  6. ^ y84 100 Yen (1972) Winter Olympics - Sapporo&query=Japan
  7. ^ y85 100 Yen (1975) Okinawa Expo&query=Japan
  8. ^ y86 100 Yen (1976) 50 yrs of Reign&query=Japan
  9. ^ Japan 100 yen 2015 - 50th anniversary of Shinkansen lines World Coin News ( October 2, 2014. Retrieved on 2014-10-02.
  10. ^ 50th Anniversary of the Shinkansen Lines The Ministry of Finance of Japan ( Retrieved on 2014-10-02.
  11. ^ The Tōkaidō Shinkansen commemorative coin series (Tōkaidō Shinkansen N700A) Japan Mint ( Retrieved on 2014-10-06.
  12. ^ The Tōkaidō Shinkansen commemorative coin series (Sanyo Shinkansen 500 Series) Japan Mint ( Retrieved on 2014-10-06.
  13. ^ The Tōkaidō Shinkansen commemorative coin series (Tōhoku Shinkansen E5 System) Japan Mint ( Retrieved on 2014-10-06.
  14. ^ The Tōkaidō Shinkansen commemorative coin series (Jōetsu Shinkansen E4 System) Japan Mint ( Retrieved on 2014-10-06.
  15. ^ The Tōkaidō Shinkansen commemorative coin series (Hokuriku Shinkansen E7 and W7 Systems) Japan Mint ( Retrieved on 2014-10-06.
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