in Three Minutes As more and more Tibetan friends join the collection world, ancient coins are increasingly presented in our field of vision. However, not all ancient coins have value, some although old, but not valuable; and some relatively recent ancient coins have a high value。

After Emperor Wu of the Han Dynasty took the throne, in order to meet the needs of the central government in economic management and political rule, he attached great importance to solving the currency system problem. He has carried out six currency system reforms and basically solved the currency system problem that has not been solved since the early Han Dynasty.

in human history, copper is the earliest widely used metal, both at home and abroad. Although as early as ancient times, people have known the existence of iron metal, and the distribution of iron ore is more extensive than copper。