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| Issuer | Kingdom of Joseon |
|---|---|
| Year | 1857 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | 4 g |
| Diameter | Log in to see details |
| Thickness | 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 | 常平通寶 |
| Reverse description | Central square hole surrounded by four Chinese characters in cruciform arrangement. The mint mark 訓 (Hun), denoting the Military Training Command (訓練都監, Hullyondogam), appears at the top. The series number 二 (2) is positioned at the left, and the character 工 appears at the right, serving as a serial or batch designation. The bottom position is occupied by a character indicating the series group. The reverse markings collectively identify the issuing mint, batch, and series of this cast bronze cash coin. |
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| Additional information |
Cast rather than struck, this piece belongs to the chaotic final decades of Joseon's state mint network, when private and semi-official furnaces were producing cash coins alongside authorized facilities with little consistent oversight. The 1 Mun denomination had been the backbone of Korean bronze coinage since the late seventeenth century, but chronic debasement and irregular casting quality meant public confidence in these coins was persistently fragile.
KM#452 is distinguished by its mint signature, which attributes it to a specific furnace within the government casting system — a detail that matters considerably for attribution, as dozens of facilities were operating concurrently by the 1850s.