When I was a little boy, I have this copper already in china, I have been move to USA when I was 10 years old I live in USA about 5 years long. The copper from small to large has been accompanied by my growth. This is my important treasure. I received this from my father's collection since I was a baby, when I growth up my father tells me that this copper is antique and it was a valuable, This was the currency used in ancient China. and I hanging on my bedside So I can sleep it can sleep a sense of security, the copper is used with six of the oldest coins to connect together. Now it's my most expensive amulet. In Chinese cultures, Qin Shihuang unified China, the unified currency system. Waste knife, cloth, shellfish and other coins, the provisions of only the middle of a cylindrical hole with a square hole, is evolved from the ring money. Qin after the passage of money, are square hole money, but the name is different. Copper coins, copper coins, also known as "coins". Copper coin mainly refers to the non-perforated copper at the end of the Qing Dynasty. My father said this is to cure evil do not nightmares during the sleeps.
– Jin chi