Although there was no notion of standard money at the time, each of the three coins, gold, silver and copper, was circulated with a value of nominal standard money, and was traded at floating exchange rates.
当時、本位貨幣という概念は無かったものの、金銀銅の三貨もいずれもが事実上の本位貨幣としての価値をもって流通し、それぞれが変動相場で取引された。