1. Supreme Treasure: It was cast from Shun Di to Zheng Zheng in Yuan Dynasty (A.D. 134 1- 1368). All of them are large bills, with ten times, twenty times, thirty times and fifty times. On the back of the inscription "Treasure of the Best", there is the word "Ji", on the right there is the word "Quanchao", and on the left there are "five cents", "one penny", "two cents and five cents" and "five cents" respectively. It is exercised with copper coins, also known as "the most right money". Qian Wen's calligraphy style is particularly handsome and fluent, just like that of "Supreme Bao Tong". This kind of copper coin is rare and very expensive.
2. Bao Tong Shaowu: Ming Dynasty. The price is average, not to 300 yuan.
3. Kaiyuan Bao Tong: Five Dynasties and Ten Countries. The price depends on the product, 500- 1500.
4. Apocalypse Bao Tong: Ming Dynasty, the price was around 500.
The first one is probably fake. . .