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1 Mon 'Kan'eitsūhō' Bosen, reverse 川 KAWA
| Issuer | Tokugawa Shogunate |
|---|---|
| Year | 1740-1745 |
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| Composition | Log in to see details |
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| Orientation | Medal alignment ↑↑ |
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| Obverse description | Log in to see details |
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| Reverse description | Plain reverse field with a central square perforation framed by a raised square rim, consistent with the standard bosen format. Above the square hole, the single Chinese character 川 (Kawa, meaning 'river') is cast in bold relief, identifying the coin as a product of the Onagi-gawa Mint. The remainder of the field is unadorned, with a raised outer rim encircling the coin. The crisp, well-defined casting of both the mint mark and the square rim reflects the superior quality expected of a mother coin used to produce working dies. |
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| Mint | Onagi-gawa Mint |
| Mintage | ND (1740-1745) 川 - Bosen (Mother coin) |
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