Japan, Taisho, 1912 - 1926
1 yen = 100 sen
1 sen 1920
Material - Bronze
KM# Y# 42
10 sen 1915
Material - Silver 720
KM# Y# 36
10 sen 1921
Material - Copper-Nickel
KM# Y# 45
50 sen 1923
Material - Silver 720
KM# Y# 46