前: (Japanese verical value) 一 銭 (ichi, 1, one Sen)
铭文: none, a wreath of rice stalks
背面: A Sunburst with 21 vertical lines in circle
with 32 double rays inside chained-dotted circle
铭文: (left, state name) 本 日 大 (sun-origin empire,
Nippon/Nihon "Empire/land of the Rising Sun"
(bottom, 4/5 characters, year) 年 (乘以) 正 大
年 = nengō (年)
乘以 = 二, 三 或者 四 (2, 3 或者 4)
正大 = Taishō period, the 123th emperor: Taishō
(his area 1 - 15 / 1912 - 1926, Yoshihito (嘉仁)
* 31 August 1879 † 25 December 1926
1st year starts on (his 1st day) 30 七月
2nd year after new year 1 January 1913
(Gregorian calendar, since 1873)
(top-left, lower-left/right, spacers/dots)
