Gan Long Bao Tong was cast during the reign of Emperor Gaozong in the Qing Dynasty (1736- 1795). It is widely rumored that wearing the "Gan Long Bao Tong" copper coin can ward off evil spirits, and it is also a favorite coin for later collectors because of its homonym with "Qianlong". The Manchu script on the back of the coin is more complicated, with detailed price and coin rubbings on it. Gan Long Bao Tong coins are about 2.2-2.5cm in diameter and 2.4-4.8g in weight. The thousand-face character "Gan Long Bao Tong" is a regular script, and its characters are read directly from top to bottom and from right to left. There is a word "Bao" on the left side of Yongzheng Manchu-style money-type tooth hole, and the names of various bureaus are cast on the right side of the tooth hole.