Catalog
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| Issuer | Joseon (1392-1897) |
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| Year | 1742-1752 |
| Type | Standard circulation coin |
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| Obverse description | Cast copper cash coin of the Joseon dynasty, featuring a central square perforation framed by a raised square boss. Four Chinese characters in traditional regular script (kaishu) are arranged in cruciform fashion around the central hole: 常 (Sang) above, 平 (Pyong) below, 通 (Tong) to the right, and 寶 (Bo) to the left, together reading 常平通寶 (Sangpyong Tongbo), denoting the Sangpyeong Tongbo currency series. The legends are bold and well-struck in raised relief against a flat, unadorned field, with a plain raised rim encircling the coin. |
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| Mintage | ND (1742-1752) 捴 |
| Additional information |
The "Yellow" designation in this series refers not to the metal but to a mint classification system used by the Joseon government to track output across its numerous casting offices. By the 1740s, Korea's copper cash coinage had expanded dramatically under state-sponsored minting drives intended to monetize an economy still heavily reliant on rice and cloth as exchange media. Multiple government bureaus — military, civil, and royal household offices alike — were authorized to cast coin, creating a complex web of mint marks and series codes that modern collectors still work to untangle.