Huohuan copper coin is a kind of coin in Han Dynasty, which is the product of the fourth currency reform in the first year of Wangmang Tianfeng (AD 14). The ring of fire spread from the first year of Tianfeng until the 16th year of Jianwu (AD 40). Ring of fire is one of the longest-used currencies in Wang Mang's currency. It is made of bronze, but it still has iron and copper with iron. Qian Wen hangs a needle seal, and a vertical pen breaks in the spring. Its versions are double-sided, half-star, left decision, right decision and so on. Mark coins mostly indicate the casting place, and the technology and quality of double-profile format are generally better. The Ring of Fire is the masterpiece of Wang Mang's later creation. Even after the restoration of Liu Xiu, Emperor Guangwu of Han Dynasty, Wang Mang's circle of fire continued to be used for 16 years, which shows the preciousness of this money. Wang Mang's monetary reform was undoubtedly a failure, but Mang Qian's well-made money was praised by later generations, which has high historical research value and collection value.

This ring of fire copper coin in the picture is a physical photo provided by Tibetan friends. It is a round coin with a square hole, 2.2cm in diameter, with contours on both sides, a hole in the center square and contours on both sides. The word "ring of fire" is cast on the face of the coin, and the middle of the word "ring" is interrupted vertically. The strokes are thin, clear and neat, slender and beautiful, and the potential is like a needle hanging in front, and the sealing method is soft. The shape of the whole coin is regular, and Qian Wen and the foundry are in a wonderful place. The land is flat, the perforations are clean and tidy, and the Qian Wen is thin and delicate, which is quite artistic and ornamental. Due to its long history, the collection has been worn by time, with obvious traces of historical transition, antique, natural rust and long charm. It is a rare work of art, with high investment value and collection value, and is worth collecting. The only shortcomings are improper cleaning and scratches.

Chinese ancient coins have a long history and a wide variety. They are treasures in the traditional culture of the Chinese nation and have high collection and investment value. In recent years, the collection industry in China is surging, and many collections have greatly appreciated. Among them, coins, as one of the varieties with the fastest appreciation and the largest appreciation, have become a new hot spot in investment collection, and the army of ancient coins has been growing, and the market is very considerable.