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 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), The emperor ordered to add a number on  reverse of the coins to indicate the year of reign title in which the coins was  cast. All the AE issues afterwards are with year number on reverse until AD1272 before the fall  of the Southern Song dynasty.