It depends. The exchange rate of ancient gold and silver was 1 two gold = 10 two silver = 10 copper coin = 10000 copper coin, which was different in different dynasties and generations. The exchange rates between copper coins, silver and gold in different periods, just like the current foreign exchange prices, will change frequently. Silver is a monetary unit with silver ingots as the main form. Originated in the Han Dynasty and prevailed in the Ming and Qing Dynasties. As legal tender unit, it ends with 1933. People after 1933 still use it.