10 Cash - Taihe Zhongbao, Seal script, smaller size, inscription repeated

The Taihe reign (1201–1208) of Emperor Zhangzong saw the Jin dynasty at a high point of administrative sophistication, and its cash coinage reflects that ambition. The repeated-inscription variety — where the legend appears on both the obverse and, unusually, the inner rim of the reverse — remains imperfectly explained; the leading hypothesis is a deliberate anti-counterfeiting measure, since duplicating a recessed reverse inscription required additional die work that informal casters rarely attempted.

Hartill's 18.65 designation distinguishes this smaller-diameter subtype from the more commonly encountered large-flan strikes of the same issue. The weight differential between the two subtypes is consistent enough to suggest separate furnace runs rather than simple planchet variation.