Catalog
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| Issuer | Toyotomi Hideyoshi government |
|---|---|
| Year | 1588-1591 |
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| Composition | Log in to see details |
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| Diameter | Log in to see details |
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| Shape | Oval |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Japanese (Kanji) |
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| Reverse description | Plain hammered gold surface showing the natural texture and undulations created during the striking process, with visible hammer marks across the entire field. A single raised rectangular or trapezoidal plug seal (埋金, umekin) is affixed near the lower-central area of the reverse, serving as a repair or assay mark consistent with known examples of this type. Faint ink traces of calligraphic inscriptions are discernible across the upper portion of the field, representing counter-signatures or inspection marks applied during official verification. The reverse lacks the prominent decorative stamps of the obverse, presenting a comparatively plain but texturally rich gold surface. No rim or border is present, the edge tapering naturally to the plain periphery. |
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| Additional information |
Produced under direct commission from Toyotomi Hideyoshi, this is among the earliest standardized gold issues in Japanese monetary history — a deliberate political act as much as an economic one. Hideyoshi was consolidating control after decades of Sengoku-period fragmentation, and commissioning large-format gold pieces from the Goto family of master goldsmiths was a calculated assertion of central authority over a country that had no unified coinage tradition.
The hand-hammered, individually inscribed nature of each piece means no two are identical. Goto Tokujō oversaw production, and each ōban was authenticated with a written ink signature — rendering them closer to certified bullion documents than coins in the conventional sense.