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1 Cash - Xianfeng Tongbao, Boo-chuwan, with crescent
| Issuer | Board of Revenue Mint, Chengdu |
|---|---|
| Year | 1855-1861 |
| Type | Log in to see details |
| Value | 1 Cash |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
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| In circulation to | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | Log in to see details |
| Reverse description | Plain reverse field centred on the square perforation, bearing two Manchu script words divided by the central hole and read vertically: the left column reading 'Boo' and the right column reading 'Chuwan', identifying the Chengdu (Sichuan) Board of Revenue Mint. A sideways crescent symbol appears above the square hole as a mint-distinguishing mark. The reverse is otherwise unadorned within a plain inner and outer rim, consistent with standard Qing cast cash practice. |
| Reverse script | Log in to see details |
| Reverse lettering | ᠪᠣᠣ ᠴᡠᠸᠠᠨ (Translation: Boo-chuwan) |
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| Additional information |
The Board of Revenue Mint at Chengdu operated under chronic supply pressure during the Xianfeng period, when the Taiping Rebellion severed key copper routes and forced provincial mints to substitute brass — a departure from the traditional cast bronze that collectors now use to distinguish Xianfeng issues by metal alone. The crescent mark on this piece is a reverse control symbol used to track output by furnace or shift, a bookkeeping device that inadvertently created the variety distinctions Hartill later catalogued.
Chengdu issues from this window are frequently better preserved than contemporary metropolitan output, Sichuan's relative insulation from the rebellion's worst disruptions keeping local commerce — and local coin handling — comparatively subdued.