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1 Cash - Daoguang Tongbao, Boo-san
| Issuer | Qing Dynasty Imperial Mint |
|---|---|
| Year | 1821-1850 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Brass |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| Technique | Log in to see details |
| Orientation | Log in to see details |
| Engraver(s) | Log in to see details |
| In circulation to | Log in to see details |
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| Obverse description | Cast brass cash coin featuring a central square perforation framed by a raised inner rim and an outer rim of similar profile. The four-character reign title legend 道光通寶 (Daoguang Tongbao) is arranged in the traditional top-bottom-right-left reading order around the central hole, rendered in regular script (kaishu) in relief against a flat field. The characters are cleanly cast with moderate relief, consistent with standard Qing Dynasty provincial mint production. The flat, undecorated field between the legend and the outer rim is typical of cash coinage of this period. |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 道 寶 通 光 (Translation: Dao Guang Tong Bao Daoguang (Emperor) / Universal currency) |
| Reverse description | Log in to see details |
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| Reverse lettering | Log in to see details |
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| Mintage | Log in to see details |
| Additional information |
The Boo-san mint operated in Shanxi province, and output there was chronically inconsistent — provincial mints under the Qing routinely fell short of Beijing's quotas due to copper shortages, fuel costs, and endemic corruption among mint supervisors. Daoguang's reign saw repeated imperial edicts attempting to standardize cash coin weights after decades of debasement under Jiaqing, which is precisely why brass became increasingly common in provincial issues despite regulations nominally requiring a bronze alloy.