According to the historical story of Dayuanbao, the Yuan Dynasty was a country that used paper money, and coinage was mainly made after the ancestors established the unification of the Yuan Dynasty. Although the Bao Tong of the Great Dynasty was cast before this (the Mongolian khanate was called the Great Dynasty before its ancestors, so money should be counted as the national name money), it had little influence. Bao Tong's regular script was read directly at the Great Dynasty, while Qian Wen was plain and the casting method was rough. Copper and silver were common, and the back of silver was stamped.
There are many silverware found, including nearly 100 pieces unearthed in Tianshui, Gansu Province, and more than 200 pieces unearthed in Lanzhou. Copper is very rare. From the third year of history (13 10), the money method was used for the first time, and it was cast in Datong Baoxiaopingqian and read directly in Chinese. The casting is not very accurate and the version is very complicated. It can be seen that the casting quantity was quite large at that time, and the folding type was extremely rare. There is a lot of small money in the biggest ingot, which belongs to the nature of temple money