China, 1017-1022 AD., Northern Song dynasty, emperor Zhen Zong, 1 Cash, Hartill 16.68.

China, Northern Song dynasty (960-1127 AD.), emperor: Zhen Zong (Chen Tsung) (998-1022 AD.), reign title: Tian Xi (1017-1022 AD.), issued 1017-1022 AD.,
1 Cash (25-25,5 mm / 3,41 g), cast, square center hole,
Obv.: 天 禧 通 寳 , Tian Xi Tong Bao, clockwise written in regular (orthodox) script, feet of Bao spread, one dot Tong.
Rev.: plain (square center hole).
Schjöth 480ff ; Hartill 16.68 (rarity 15, very common) ; FD 893 .