2015 high-end antique collection of antique coins Modern

China is the first country to use metal currency. And metallic money, the ancient copper-based again. Therefore, the history of ancient Chinese money, in fact, the history of coins. Chinese solid shell with teeth as in the Yin and Zhou era currency, due to the real Tony enough, but by imitation copper shell instead. In recent years, the number of the Shang Dynasty tombs discovered three copper shell. Copper shell is to shape the transition metal currency. Qin Shi Huang unified China, unified currency. Waste knife, cloth, shellfish and other coins, provides that only adopt a cylindrical middle of the square hole wire one hole, is the evolution of the money made by the ring. Qin after the passage of money, are square hole, but the name is different. Coins, copper coins, also known as "coins." Copper coins mainly refers to non-porous end of the Qing Dynasty.