K3210, Qing-Ning Tong-Bao Coin, China Liao (Tartar) Dynasty, AD 1055-1064.
VF, please refer the picture.
Minted by Emperor Dao Zong during AD 1055-1064. The emperor of China Tartar Dynasty---Liao Dynasty.
Catalogue Number: H18.12 (David Hartill), FD1622 (Fisher Ding's), S1066 (Schjoth's).
Size: around 23 mm in diameter.
Weight: around 3.5 gram.