Japan › Hirohito (Showa) › 1926 - 1950![]() ![]() | 1 sen 1927 - 1938 Bronze, 3.75g, ø 23mm Y# 47 · Circulation coins |
![]() ![]() | 1 sen 1938 Bronze, 3.75g, ø 23mm Y# 55 · Circulation coins |
![]() ![]() | 1 sen 1938 - 1940 Aluminium, 0.9g, ø 17.6mm Y# 56 · Circulation coins |
![]() ![]() | 1 sen 1941 - 1943 Aluminium, 0.65g, ø 16mm Y# 59 · Circulation coins |
![]() ![]() | 1 sen 1944 - 1945 Tin-Zinc, 1.3g, ø 15mm Y# 62 · Circulation coins |
![]() ![]() | 1 sen 1945 Clay, 0.8g, ø 15mm KM# 110 · Circulation coins |
Japan › Yoshihito (Taishō) › 1912 - 1926![]() ![]() | 1 sen 1913 - 1915 Bronze, 7.13g, ø 27.8mm Y# 35 · Circulation coins |
![]() ![]() | 1 sen 1916 - 1924 Bronze, 3.75g, ø 23mm Y# 42 · Circulation coins |
Japan › Mutsuhito (Meiji) › 1868 - 1912![]() ![]() | 1 sen 1873 - 1888 Copper, 7.13g, ø 27.9mm Y# 17 · Circulation coins |
![]() ![]() | 1 sen 1898 - 1902 Bronze, 7.13g, ø 27.9mm Y# 20 · Circulation coins |
