Watch List notes:

China, Northern Song Dynasty, a trio of 1 cash, Da Guan Tong Bao, measuring 24.3x1.47mm, 23.9x1.1mm and 24x1.1mm respectively; corresponding weights are 3.3g, 2.8g and 2.4g; graded Zhong Qian 80, Genuine and Genuine (3).

Estimate: 400 - 700