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| 表面の説明 | Cast copper cash coin with a central square perforation surrounded by a raised square rim. Four large clerical-script (lishu) characters are arranged in the traditional cross pattern around the central hole: 乾 (top), 重 (right), 寶 (left), and 元 (bottom), reading clockwise as 乾元重寶. The boldly rendered characters exhibit the characteristic flat-topped strokes and angular forms of Tang-period clerical script. The coin is bounded by a raised outer rim and an inner rim flanking the square hole, with a flat, unadorned field between the inscriptions and the periphery. |
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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 | ログイン して詳細を見る |
| 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 | Plain |
| 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 |
Issued by imperial decree in 758 under Emperor Suzong as an emergency fiscal measure during the An Lushan Rebellion, the Qianyuan Zhongbao was assigned a face value of ten cash — ten times a standard single-cash piece — while containing far less than ten times the copper. The scheme was a deliberate debasement, and the population knew it. Merchants refused the coins at face value almost immediately, and within months a second variety valued at fifty cash was introduced, compounding the problem.
The resulting monetary chaos forced a formal revaluation in 759, collapsing the ten-cash piece to a single-cash in official exchange. Production ceased shortly after.