1886/1897, Japan, Meiji. Silver Yen CoinMint Place: OsakaDenomination: 1 Yen Reference: KM-Y#28a.1.Mint Year/Countermark Year: 1886 (Year 20) / 1897Diameter: 38.6mmWeight: 26.81gmMaterial: SilverCountermarked yen refers to Japanese trade dollars and 1 yen coins that are stamped 銀 (gin), literally meaning “silver”. The countermark was added by the Japanese government in 1897 to thes ...