China, 1111-1117 AD., Northern Song dynasty, emperor Hui Zong, 1 Cash, Hartill 16.428.

China, Northern Song dynasty (960-1127 AD.), emperor: Hui Zong (Huizong, Hui Tsung) (reign 1100 - 1125 AD.), reign title: Zheng He (Zhenghe, Cheng Ho) (1111-1117 AD.), issued 1111-1117 AD.,
1 Cash (24,5 mm / 4,30 g), cast, square center hole,
Obv.: ( 政 和 通 寳 ) , Zheng He tong bao (Cheng ho t'ung pao), seal script, large characters.
Rev.: plain (square center hole).
Hartill 16.428 (rarity 15, very common) ; Schjöth 633 ; FD 1070 .