前: (Japanese verical value) 五 十 銭 (go-jū, 50, fifty Sen)
铭文: none, a wreath with Paulownia branch (左)
and ... branch (右) and Imperial Seal,
(Chrysanthemum Seal, 菊紋, kikumon, Chrysanthemum
Flower Seal ,菊花紋, 菊花紋章, kikukamon, kikukamonshō or
Imperial chrysanthemum emblem (菊の御紋 kikunogomon) at the top
背面: A decorated dragon inside chained-dotted circle
铭文: (left, state name) 本 日 大 (sun-origin empire,
Nippon/Nihon "Empire/land of the Rising Sun")
(right, year) 年 (六 - 八十三) 治 明
年 = nengō (年)
6th (六) - 38th (八十三) year of 122th emperor Meiji
明治 Meiji (period, 天皇 -tennō or Meiji the Great, 明治大帝 Meiji-taitei)
(his area 1 - 45 / 1867 - 1912, Mutsuhito, 睦仁)
(* 3 November 1852 – † 30 July 1912)
1st year starts on (his 1st day) 3 2月 1867
(Gregorian calendar, since 1873,
1 January started his 7th year)
(top-left, lower-left/right, spacers/dots) •
(bottom, English value) 50 SEN
边缘: G - grained, type: 杆
备注:
type l: short stroke ↘明 "Nen"↘日
type II: long stroke ↘明 "Nen" ↘日