China, 1078-1085 AD., Northern Song dynasty, emperor Shen Zong, 1 Cash, Hartill 16.237.

China, Northern Song dynasty (906-1127 AD.), emperor Shen Zong (Shen Tsung) (1068-1085 AD.), reign title: Yuan Feng (1078-1085 AD.), 1078-1085 AD.,
1 Cash (24 mm / 4,54 g), cast, square center hole,
Obv.: ( 元 豊 通 寳 ) , Yuan Feng Tong Bao , in running script, clockwise top-right-beneath-left of central hole; "Bao" with claw feet.
Rev.: plain (square center hole).
Hartill 16.237 (rarity 15, very common) ; Fredrik Schjöth. Chinese currency. Oslo, 1929, no. 547 ; FD 963 .