1/2 Jin - An Yang

The spade coinage of the Warring States period was not standardized across competing kingdoms — each state maintained its own weight systems and monetary conventions, making cross-border trade a constant exercise in reckoning. Zhao's hollow-handle spades, of which this is a fractional unit, circulated primarily within the Wei River basin territories the state controlled during its expansion toward the Yellow River plain.

An Yang itself was a significant regional center, and its named issues suggest a degree of localized monetary administration unusual even by Warring States standards — place-name inscription on spade money typically indicates production tied to a specific foundry or market town rather than a central mint.