5 Zhu - Wu Zhu with radiate lines

The iron wu zhu series of the Southern Liang dynasty emerged from a metals crisis: bronze had become too strategically valuable to mint freely, and the court under Emperor Wu authorized iron as a substitute currency. The result was predictably chaotic — iron coins corroded rapidly, were easily counterfeited, and circulated alongside dozens of competing private and official issues of wildly inconsistent weight. The radiate lines on this variety are a decorative elaboration whose precise regulatory or workshop origin remains unresolved in the literature.