TANG DYNASTY.618-907 AD.KAI YUAN.Huichang Kai yuan.845-846 AD. 23,15 mm - 3,05 gr.O:\ Kai yuan tong bao.R:\ Yan (Yan prefecture in Shandong).Hartill 14.90.
TANG DYNASTY.618-907 AD.KAI YUAN.Huichang Kai yuan.845-846 AD. 23,15 mm - 3,05 gr.O:\ Kai yuan tong bao.R:\ Yan (Yan prefecture in Shandong).Hartill 14.90.