China, 1102-1106 AD., Northern Song dynasty, emperor Hui Zong, 10 Cash, Hartill 16.399.

China, Northern Song Dynasty (960-1127 AD.), emperor Hui Zong (1101-1125 AD.), issued 1102-1106 AD.,
10 Cash (ø 34 mm / 9,27 g), cast bronze, 8 x 8 mm square center hole, plain edge,
Obv.: 崇寧通寶 , Chong Ning tong bao. Slender Gold Script - the Emperor's own calligraphy.
Rev.: plain (square center hole), scratches.
Hartill 16.399 ; Remmelts 91 ; Mitchiner 3529 ; Staack 1142 ; Schjöth 621 .

This coin is round with a square hole. It conforms to the shape of Chinese coins that first developed in the early seventh century and continued well into the nineteenth. The four character inscription reads chong ning tong bao, roughly “circulating treasures of the Chongning era.” This is the name given to the period from 1102 to 1106 by Huizong (r. 1101–1125), the last emperor of the Northern Song dynasty (960–1127).