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| 表面の説明 | Cast iron cash-type coin with a central square perforation surrounded by a plain inner rim. Four Chinese characters in regular script (kaishu) are arranged in cruciform fashion around the central hole, reading clockwise from the top: 乾元重寶 (Qian Yuan Zhong Bao), denoting the denomination and reign era. The field is unadorned, and the outer rim is slightly irregular, consistent with the sand-casting technique employed. The coin exhibits heavy iron corrosion and surface encrustation typical of excavated Goryeo-period issues. |
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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 | ログイン して詳細を見る |
| 裏面の説明 | Plain cast iron reverse featuring a central square perforation flanked by a raised inner rim. Two Chinese characters, 東國 (Dong Guo, meaning 'Eastern Kingdom'), are positioned in the right and left fields respectively, identifying the issuing state as Goryeo Korea. The remaining quadrants of the field are blank. The surface displays pronounced iron oxidation and pitting consistent with the coin's age and burial history, with the outer rim showing the slightly uneven profile characteristic of sand-cast production. |
| 裏面の文字体系 | Chinese (Traditional) |
| 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 |