China, 1068-1077 AD., Northern Song dynasty, emperor Shen Zong, 1 Cash, Hartill 16.170.

China, Northern Song dynasty (960-1127 AD.), emperor: Shen Zong (Shen Tsung) (1068-1085 AD.), reign title: Xi Ning (1068-77 AD.), issued 1068-77 AD.,
1 Cash (23,5-24 mm / 3,04 g), cast, square center hole,
Obv.: 熈 寧 元 寳 , Xi Ning Yuan Bao, clockwise in seal script, Ning written with a curved stroke at the bottom.
Rev.: plain (square center hole).
Hartill 16.170 (rarity 15, very common) ; Schjöth 527 .