Qing Yuan Tong Bao 1-cash, 5th year Chinese Southern Song Dynasty (1127 AD-1279) 1-cash coin. Qing Yuan Tong Bao, reverse year name 五 below (5th year), cast in 1199 AD. 23.85mm /3.82g. 5 USD @ dong_hua_zhai Starting from 7th year of Chun Xi period (AD1180),...