北宋元祐通宝小平篆书 上美品NORTHERN SONG: Yuan You, 1086-1093, AE cash (5.01g), Henan Province, H-16.265, seal script, shan above on reverse, cast at the Shanzhou inspectorate mint in 1093, tiny rim flaw, VF, RRR, ex Zhao Quanzhi Collection. Mint marks on Northern Song coins are generally quite rare, such as on this example.