ROC, Sun Yat-sen Nickel CoinHalf Yuan Series民國 孫中山像鎳幣半圓系列ROCSun Yat-sen Nickel CoinHalf YuanROC era 31民國孫中山像鎳幣半圓民國三十一年AD 1942Provenance: Spink 2023ROCSun Yat-sen Nickel CoinHalf YuanROC era 32民國孫中山像鎳幣半圓民國三十二年AD 1943Provenance: Spink 2023