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| 表面の説明 | Cast copper cash coin of typical East Asian square-holed round form, bearing a four-character reign legend in Chinese kaishu (regular script) disposed clockwise around a central square perforation. The characters 貞, 觀, 永, and 寳 are arranged in the four cardinal positions — top, right, bottom, and left respectively — each framed between the inner square rim and the outer circular rim. The raised legends are rendered in bold relief against a flat field, with the stroke weight and foot details varying by die variety as documented in DHJ nos. 1.55–1.58. The coin exhibits a deeply patinated dark olive-brown and verdigris surface consistent with prolonged burial, typical of Heian-period coinage. |
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| 表面の文字体系 | ログイン して詳細を見る |
| 表面の銘文 | 貞 寳 觀 永 (Translation: Everlasting treasure of the Jōgan era (read clockwise)) |
| 裏面の説明 | Plain and uninscribed reverse, displaying the characteristic raised inner square rim surrounding the central square perforation and an outer circular rim, both cast in copper. The flat field between the rims is entirely blank, showing no legend, decoration, or mint mark. The surface is heavily encrusted with dark patina and patches of green verdigris, consistent with the coin's age and burial history. This unadorned reverse is standard for Japanese Kocho Junisen series cash coinage of the Heian period. |
| 裏面の文字体系 | ログイン して詳細を見る |
| 裏面の銘文 | ログイン して詳細を見る |
| 縁 | ログイン して詳細を見る |
| 鋳造所 | ログイン して詳細を見る |
| 鋳造数 | ログイン して詳細を見る |
| 追加情報 | ログイン して詳細を見る |