Country Japan Year 1882 Calendar Japanese - Meiji era Value 1 Yen (1 JPY) Metal Silver (.900) Weight 20 g Diameter 38.5 mm Thickness 2.5 mm Shape Round Orientation Coin alignment ↑↓ Demonetized yes References Y# A25 Obverse Dragon Lettering: 大日本 · 明治八年 · 416·ONE YEN·900 · Reverse Denomination (in Japanese kanji text) surrounded by wreath and stylized chrysanthemum flower (Imperial Seal of Japan) Lettering: 一 圓