The format of Chongning Bao Tong is changeable, including Xiaoping, private casting, folding in two, folding in three and folding in dozens. In the area, Chongning Bao Tong Discount 2 belongs to 8-level currency, with the top market price of 100 yuan, Chongning Bao Tong Discount 3 belongs to 8-level currency, with the top market price of 200 yuan, and the sample, characters and details of Chongning Bao Tong Xiaoping belong to 7-level currency, with the top market price of 500 yuan, and the details of 800 yuan.
Chongning Bao Tong is Song Huizong's calligraphy style, thin, gold-plated, iron and silver hooks. It is elegant and profound, and its calligraphy is exquisite, making it the pinnacle of regular script in Qian Wen. It is the first royal calligraphy copper coin in China, and it is also the most exquisite coin in all previous dynasties. The world called Chongning Bao Tong the first spring in the Song Dynasty, and together with Xin Mang coins, it was called the second saint of China's money law.