在清朝260余年的历史上,流通的金属铸币以铜钱为主。到咸丰年间,因国力日愈衰颓,又遇太平天国运动,费用剧增,财政困窘;而铜钱又因铜材不足及供应渠道受阻等原因,铸造数量无法满足巨额支出的需要,迫使清政府铸造铁钱以作为铜钱的补充。然 In the more than 260-year history of the Qing Dynasty, the circulation of metal coins dominated by copper coins. In the period of Xianfeng, due to the deteriorating national power and the movement of the Taiping Heavenly Kingdom, the cost increased sharply and financially embarrassed. Due to the shortage of copper materials and the obstruction of supply channels, the quantity of foundry could not meet the huge expenditure needs, forcing the Qing government to cast iron Money as a supplement to the money. Of course