Everything that opens the door is already buried, mostly from the Song Dynasty. Coins in Song Dynasty occupy an important position in the history of coins in China, and they are rich treasures for people to watch and collect today. After the establishment of the Song Dynasty, in the first year of Jianlong (AD 960), the coin of "Song copper ingot" was minted. Because the country name "Song" is directly cast on coins, it is called "country name money". Song Renzong has appeared in Song Huizong Bao Tong and so on. Among them, there are many varieties of "Huangsong Bao Tong". 1979, a national treasure nine-fold seal script "Emperor Bao" was found in a waste recycling bin in Miyun County, Beijing. This kind of coin has been copied now, and Qian Wen overlaps and twists, just like the words on the emperor's seal, which is very ornamental. After Song Taizu Zhao Kuangyin died, his younger brother Zhao Huan succeeded to the throne. After Zhao Huan proclaimed himself emperor, he changed his country name to "Yuping Xingguo" and successively minted three commemorative coins, namely Taiping Bao Tong, Chunhua Bao Tong and Zhidao Yuanbao. In the Northern Song Dynasty, the Nine Emperors changed the following year to 35 years and cast 27 kinds of annual money. Seven emperors in the Southern Song Dynasty were renamed 20 times, casting 18 titles. Several kinds of non-annual money in Song Dynasty belonged to Song and Yuan Dynasties, Huang and Song Dynasties in the first year of Bao Dynasty, and Shengsong Yuanbao in Zhong Jian Period. One of the characteristics of coins in the Song Dynasty is the addition of the word "Bao". Apart from the Yuanbao, Bao Tong and Chongbao in the Tang Dynasty, there are also Tianbao, Zhenbao, Yongbao, Wanbao, Xingbao and Supreme Treasure, and many coins are inscribed by the emperor himself, which are called "Imperial Book Money". Only Zhao Huan wrote "Chunhua Yuanbao" and "The Six Treasures of Truth", and they were written in three styles of truth, line and grass, which shows his writing skill. Although Song Huizong lacked the strategy of governing the country and keeping the country safe, his calligraphy was superb, creating a thin gold body with far-reaching influence. His coins, such as Daguan Bao Tong, Zhenghe Bao Tong and Xuanhe Bao Tong, are treasures in the collection of ancient coins and one of the four wonders of ancient coins. Many famous literati and calligraphers minted coins for Qian Wen in the Song Dynasty. For example, Su Dongpo once wrote "Yuanfeng Bao Tong" money, which became known as "Dongpo Yuanfeng". Cai Jing's official script Chongning Chongbao has been handed down from generation to generation. The characters of coins in Song Dynasty are colorful, including Zhen, Cao, Zhuan and Li. Chongning Bao Tong was one of the most important coins in Song Huizong period. Its biggest feature is that the word "Chongning Bao Tong" on the coin is a thin gold body written by Song Huizong himself. Coins are exquisitely cast and have complicated versions. According to statistics, there are about 300 versions of "Chongning Bao Tong". In the investment of coins, different versions have different market values. The main difference of "Chongning Bao Tong" is the difference in words: the market price of ordinary coins is between 5 yuan and 10 yuan. The price of the special edition is between 40 yuan and 60 yuan. The situation of Chongning Chongbao is similar to that of Chongning Bao Tong, except that some versions are rare and worth thousands of dollars.
You can use these words to see if you have money. I hope my answer is helpful to you!