Tianchao Wansui coin

Liao Dynasty
Diameter: 6.2 cm, Weight: 68.1 g

This is a big copper coin worth ten cash, with characters in a vigorous style. Red rust could be seen. The Khitan characters on the obverse read Tianchao wanshun or Tianchao wansui. It used to be in the collection of Zhou Zhaoxiang, a collector of antiques.