Catalog
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| Issuer | Japan |
|---|---|
| Year | 848-859 |
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| Value | 1 Mon |
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| Composition | Log in to see details |
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| Diameter | Log in to see details |
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| Obverse description | Cast copper cash-type coin featuring a central square perforation enclosed by a raised square border. Four large Chinese characters are disposed in the four cardinal quadrants of the field, reading clockwise from the top: 長 (chō), 年 (nen), 大 (tai), 寳 (hō), forming the legend 'Chōnentaihō' (Great Treasure of Many Years). The characters are rendered in regular script (kaisho) style with bold, well-defined strokes. A plain raised rim encircles the outer field. The surface displays an ancient patina of dark brown and olive tones with areas of verdigris. |
|---|---|
| Obverse script | Chinese |
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| Edge | Plain |
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