Tang dynasty. In 621, the 4th year of Tang Emperor Wude, "Kal Yuan Tong Bao" coins were formally issued, which means "circulating treasure from the inauguration of a new epoch" and the former "Wu Zhu" coin system was abolished. As the major currency of the Tang dynasty, each "Kai Yuan Tong Bao" coin weighed one-tenth Liang (tael, each tael then equals 42 gram), which began the decimal system in ancient China.

The price is for a coin!

Obverse:

     開                      Kai 

寳       通        Bao            Tong

     元                     Yuan

If you win two or more items from me, I offer some discount of shipping fee, which will definitely save some of your shipping cost.