从铸钱制度来说,清政府从建立直至鸦片战争爆发前的约200年间,从未有过铸造低于一钱重铜钱的相关规定。但在具体铸钱中,乾隆十一年(1746),湖北宝武局经过奏请乾隆皇帝同意,铸造过八分重铜钱。这是清代前期钱局将铜钱每文铸重降至一钱以下的唯一一次试铸,也是清代前期铸造的最轻 From the system of casting money, the Qing government had never had the relevant provisions of casting less than one sum of money back and forth between the establishment and the establishment of the Opium War until about 200 years before the outbreak of the Opium War. However, in the specific casting money, Qianlong eleven years (1746), Hubei Bao Wu Bureau asked Qianlong emperor to agree, casting over eight heavy coins. This is the only time the Qian Bureau of the Qing dynasty put the coinage of coins down to less than one coin for the first time. It is also the lightest cast in the early Qing Dynasty