5 Cash - Xianfeng Tongbao, Aksu

The Aksu mint, operating in what is now Xinjiang, was one of several frontier outposts the Qing crown maintained to supply coinage to a region it had only consolidated control over in the 1750s. During the Xianfeng reign, the dynasty was hemorrhaging resources on multiple fronts simultaneously — the Taiping Rebellion in the south, the Nian Rebellion in the north, and mounting pressure from European powers — which drove repeated debasements and denomination inflations across all mints. Five-cash pieces were among the emergency multiples introduced precisely because the standard single-cash had become economically trivial.

Aksu output from this period is notably inconsistent in fabric, a direct consequence of irregular copper supplies along strained Central Asian supply routes.