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| Issuer | Korea (1392-1945) |
|---|---|
| Year | 1857 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Mun (1392-1892) |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 常 寶 通 平 |
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| Mintage | ND (1857) 訓 - Series 1 (一) - ND (1857) 訓 - Series 10 (十) - ND (1857) 訓 - Series 2 (二) - ND (1857) 訓 - Series 3 (三) - ND (1857) 訓 - Series 4 (四) - ND (1857) 訓 - Series 5 (五) - ND (1857) 訓 - Series 6 (六) - ND (1857) 訓 - Series 7 (七) - ND (1857) 訓 - Series 8 (八) - ND (1857) 訓 - Series 9 (九) - |
| Additional information |
The Joseon court authorized expanded cash coin production in the 1850s partly to finance military infrastructure as coastal defense concerns intensified following increased Western naval activity in East Asian waters. These coins circulated alongside a chaotic mix of older issues from multiple authorized mints — the Joseon government never fully standardized production, and individual casting quality varied considerably between furnaces even within the same mint's output.
KM#454 is distinguished from related types by its specific mint marks, which identify the issuing government bureau — details that determine collectibility far more than condition in this series.