Qing Dynasty - Revolt of the Three Feudatories. Li Yong Tong Bao, 1674-1678, AE 10 Cash (16.7 g, 45.5 mm). Reverse legend \Yi Fen\ (one cent of silver) in vertical positions. Traces of cleaning with some hairlines visible around the rims. Very Fine.Wu Sangui was sealed as a prince after killing Empe