|Value 10 Japanese yen|
Diameter 23.5 mm
Composition 95% Cu 3-4% Zn 1-2% Sn
|Mass 4.5 g|
Thickness 1.5 mm
|Edge Reeded (1951-1958) Smooth (1959-)|
The 10 yen coin (十円硬貨, Jū-en kōka) is one denomination of Japanese yen.
The obverse of the coin depicts the Phoenix Hall of Byōdō-in, a Buddhist temple in Uji, Kyoto prefecture, with the kanji for "Japan" and "Ten Yen." The reverse shows the numerals "10" and the date of issue in kanji surrounded by bay laurel leaves.
10-yen coins issued between 1951 and 1958 have reeded edges, while 10-yen coins issued from 1959 onward do not.
The following are circulation dates which cover Emperor Hirohito's reign. The dates below correspond with the 26th to the 64th year (last) of his reign. All ten yen coins that were made before 1959 have reeded edges, this has since changed to the present day smooth edge. Coins for this period will all begin with the Japanese symbol 昭和 (Showa).
The following are circulation dates in the reign of the current Emperor. Akihito was crowned in 1989, which is marked with a 元 symbol on the coin as a one year type. Coins for this period all begin with the Japanese symbol 平成 (Heisei).