China, 1004-1007 AD., Northern Song dynasty, emperor Zhen Zong, 1 Cash, Hartill 16.49.

China, Northern Song dynasty (960-1127 AD.), Zhen Zong (998-1022 AD.), reign title: Jing De (1004-1008 AD.), issued 1004-1008 AD.,
1 Cash (24 mm / 4,01 g), cast, square center hole, touching rim type,
Obv.: 景 德 元 寳 , four chinese characters (in regular script) around square center hole (clockwise, beginning at the top): Jing De Yuan Bao. "Yuan" touching rim below.
Rev.: plain (square center hole).
Hartill 16.49 (rarity 15, very common) ; Schjöth 471 ; Jen. 210 ; FD. 881 .