皇こう朝ちょう十じゅう二に銭せん

noun

twelve imperial coinages of Nara and Heian Japan

Historical term referring to the twelve types of coins minted under imperial order from the late 7th to the 10th century, including the Wadōkaichin and others.

• 皇こう朝ちょう十じゅう二に銭せんは、和わ同どう開かい珎ちんをはじめとする古こ代だい日本にほんの貨か幣へいです。

  The twelve imperial coinages are ancient Japanese currencies, starting with the Wadōkaichin.