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【规格】直径：24.83mm 重：3.42g直径：24.83mm 重：3.88g
[Name] Kuanyong Tongbao
[Specification] Diameter: 24.83mm Weight: 3.42g Diameter: 24.83mm Weight: 3.88g
Japan is the first country to imitate the Chinese square hole round coin. According to some experts, Japan began to follow the example of China's Tang Dynasty in 708, when the emperor and the same year (708, equivalent to the second year of Jinglong, Emperor Zhongzong of the Tang Dynasty) of Nara Dynasty began to cast "hetongkai" square hole round coins. By 1860's, there were 32 kinds of square hole round coins, of which "Kuan Yong Tong Bao" was the largest one.
This group of coins is Kuan Yong Tong Bao, with a diameter of 24.83mm and a weight of 3.42g.3.88g. It is the largest coin in the history of Japan, with the longest casting period and the most edition. It is also one of the most foreign coins flowing into China.
It began to be cast in 1626, the 108th generation of emperor Kuan Yong in Japan, and began to be cast in large quantities since 1636. At that time, money stoves were cast all over Japan, and they were still in use until the early Ming Dynasty, with a circulation of 240 years. Later, it was abolished due to the demise of the Tokugawa Shogunate. Kuan Yong Tong Bao money continued to flow into China in the long-term trade and exchanges between China and Japan, and has been found in various countries.
In the mid-1990s, when the "Tailai expressway" was built, some copper coins of Qing Dynasty were unearthed from Fangxia to Yangzhuang Road, most of which were red copper coins of Qianlong, Jiaqing, Daoguang, Xianfeng and Guangxu years, including a certain amount of Japanese and Annam copper coins. Kuanyong Tongbao is in full swing in the market, which is the focus of collectors at home and abroad. It has a very high collection value and great appreciation space!