Huan

Chu was the largest of the Warring States by territory, stretching across much of the Yangtze basin, and its monetary system remained stubbornly independent of the spade and knife currencies favored by northern rivals. The huan — sometimes called the ant-nose or ghost-face coin by later collectors, depending on the specific type — circulated in a state that was simultaneously a military power and an economic outlier. Chu bronze issues were cast, not struck, using clay molds in foundry clusters, and their irregular weights across surviving specimens suggest decentralized production rather than any single royal mint.