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| Issuer | Joseon (1392-1897) |
|---|---|
| Year | 1742 |
| Type | Log in to see details |
| Value | 1 Mun (0.001) |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| Obverse description | Cast bronze cash-type coin featuring four Chinese characters arranged around a central square hole in the classic cross-pattern. Reading top-to-bottom and right-to-left, the inscription reads 常平通寶 (Sangpyeong Tongbo), identifying this as currency issued under the Sangpyeong (Ever-Normal) system of the Korean Joseon Dynasty. The characters are rendered in regular script (kaishu) with clearly defined strokes. The field is plain, with no additional decorative elements. |
|---|---|
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| Obverse lettering | Log in to see details |
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| Edge | Plain |
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| Additional information |
The "circle at left" designation identifies a furnace mark used by one of the many government bureaus authorized to strike cash coins during the Yeongjo reign. Korea's mun coinage was produced across a fragmented network of minting offices — military commands, royal guards units, civil ministries — each assigned distinct symbols to differentiate output. This organizational sprawl was a deliberate fiscal response to chronic copper shortages and the state's inability to centralize production.
KM#343 is among the more numerous varieties from this period, though attribution between furnace marks remains contested in older references.