Catalog
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| Issuer | Sendai Domain |
|---|---|
| Year | 1784 |
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| Currency | Mon (1784-1863) |
| Composition | Log in to see details |
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| Obverse description | Square flan with deeply rounded corners, featuring a central square perforation characteristic of East Asian cast coinage. Four boldly cast Chinese characters are arranged in the four cardinal positions around the central hole, reading clockwise from the top: 仙 (top), 通 (right), 臺 (bottom), 寶 (left), together forming the legend 'Sendai-tsūhō' (仙臺通寶), meaning 'Sendai Currency'. The characters are rendered in a robust, rectilinear script with strong relief against the flat field. The coin presents a raised rim framing the design on all sides. |
|---|---|
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| Edge | Plain |
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| Additional information |
Sendai Domain received special shogunal authorization in 1784 to mint its own copper cash coins — an unusual privilege for a han, reflecting both the domain's chronic cash shortage and the Tokugawa bakufu's broader struggle to supply adequate small-denomination coinage to the northeastern provinces. The "Bosen" designation distinguishes this issue from the domain's later lightweight castings, which were debased to stretch copper reserves and circulated at a discount even within domain borders.
The large type is distinguished by casting weight, not design variation alone. Known varieties differ in rim thickness and character spacing — details relevant to serious collectors of han-satsu era coinage.