Japan, Meiji, 1867 - 1912
1 yen = 100 sen
1 sen 1899
Material - Copper
KM# Y# 20
1/2 sen 1884 (year 17)
Material - Copper
KM# Y# 16
10 sen (year 20)
Material - Silver 800
KM# Y# 23
10 sen 1911
Material - Silver 720
KM# Y# 29