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10 Cash - Xianfeng Zhongbao, Boo-yūn
| Issuer | Board of Revenue Mint / Yunnan Mint |
|---|---|
| Year | 1853-1858 |
| Type | Standard circulation coin |
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| Composition | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Chinese (traditional, regular script) |
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| Reverse description | The reverse displays a central square hole flanked by two vertical Manchu script words reading 'Boo-yūn' (ᠪᠣᠣ ᠶᡡᠨ), denoting the Yunnan Mint, with the left and right portions of the inscription separated by the perforation. Above the central hole appears the Chinese character 當 (dāng, 'equivalent to') and below the character 十 (shí, 'ten'), together indicating a denomination of ten cash. All inscriptions are raised in relief within a flat field bounded by a raised circular rim, following standard Qing dynasty cash coin reverse conventions. |
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| Additional information |
The Boo-yūn (Yunnan) mint operated under chronic copper shortages throughout the Xianfeng period, which is precisely why this issue was struck in brass rather than the traditional cast bronze used elsewhere in the empire. The switch was pragmatic — Yunnan's copper mining districts were increasingly disrupted by the Panthay Rebellion, the Muslim uprising that began in 1856 and would eventually sever provincial supply lines almost entirely.
Hartill 22.1016 is among the more frequently encountered Yunnan Xianfeng cash types, but survivors with full, even casting and minimal porosity are not common. The rebellion shut down regular mint operations before the decade was out.