直径：5.1cm 重：51.3g 厚0.2cm

清咸丰年间(1851-1861年)，太平天国农民起义发展迅猛，并在江苏南京建都，此时清政府赖以铸钱之用的滇铜(云南省出产的铜料)，因道路阻断而无法运进北京。一方面是镇压起义急需大量的军饷开销，一方面是铸钱的原材料告缺，给清政府造成了严重的财政困难，最终迫使清政府自咸丰三年开始发行纸币和改铸大钱来弥补财政亏空。此咸丰元宝就是在这个时期，最难得可贵的就是此币乃是最为罕见的当百币。

During the Xianfeng Period of Qing Dynasty (1851-1861), the peasant uprising of the Taiping Heavenly Kingdom developed rapidly and was built in Nanjing, Jiangsu Province. At that time, the Qing government used copper coins (the copper material produced in Yunnan Province) for the purpose of casting money. Can not be shipped to Beijing. On the one hand, the suppression of the uprising urgently requires a large amount of military expenses. On the one hand, the raw materials for casting money are lacking, which has caused serious financial difficulties for the Qing government. Finally, the Qing government has been forced to issue banknotes and reform large money from Xianfeng for three years to make up for the financial deficit. . This Xianfeng Yuanbao is in this period, the most precious thing is that this currency is the rarest one hundred coins.