Koushu Gold Coins

As a result, the mines yielded a lot of gold. At that time, so many people dug for gold frantically because war funds were at the peak of demand. It is said that gold dust was made into Takenagashi-Gold, Goishi-Gold, Hirumo-Gold or Yuzuriha-Gold, and then Ichiryo-Gold or Tsuyu-Gold, Kokou-Gold and Shinkou-Gold with the times.

Kokou-Gold can be divided into two groups on the basis whether they have fraction or not. It is generally regarded that those which have fraction are older than those which are rounded up to integral numbers.