カタログ
| 表面の説明 | ログイン して詳細を見る |
|---|---|
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| 裏面の説明 | Plain reverse with a central square perforation flanked by a raised inner rim and an outer raised border encircling a flat, unadorned field. No inscription, decoration, or additional design elements are present, consistent with standard Japanese imperial cast cash coinage of the late Heian period. The surface exhibits a uniform dark brown and grey patination with scattered red cuprite deposits. |
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| 縁 | Plain |
| 鋳造所 | ログイン して詳細を見る |
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| 追加情報 |
The Kanpyōtaihō takes its name from the Kanpyō era of Emperor Uda's reign, and it was among the last of Japan's twelve imperially-sanctioned copper cash coins — the Jūnisen — struck before the imperial court abandoned copper coinage entirely for nearly six centuries. The decision to stop minting wasn't gradual deterioration but a deliberate withdrawal: by the late Heian period, rice and cloth had reasserted themselves as the dominant exchange media, and imported Chinese coin filled whatever gaps remained.