Catalog
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| Issuer | Joseon Dynasty |
|---|---|
| Year | 1742-1752 |
| Type | Standard circulation coin |
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| Obverse description | Cast copper cash-type coin featuring four Chinese characters in regular script (kaishu) arranged in cruciform reading order around a central square perforation. The four-character legend 常平通寶 (Sangpyong Tongbo) reads top-bottom-right-left in the traditional manner, with 常 at the top, 平 at the bottom, 通 at the right, and 寶 at the left. The characters are rendered in bold, well-defined relief against a flat, unadorned field. A raised inner rim frames the central square hole, and a broad outer rim encircles the entire design. |
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| Mintage | ND (1742-1752) |
| Additional information |
The "Space" designation refers to a blank field intentionally left on the reverse where other varieties in this series carry a secondary mint or furnace identifier. Whether this reflects a specific foundry's practice or a die state peculiarity remains debated among specialists in Korean cash coinage. Joseon minting authority during the 1740s was distributed across multiple government bureaus and military offices, each producing recognizably distinct varieties — the absence of a mark here is itself diagnostic, not accidental.