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| 正面描述 | Cast bronze cash coin centered on a square central perforation, around which four Chinese characters are arranged in the traditional cross-reading order (top, bottom, right, left): 天啟通寶 (Tianqi Tongbao). The characters are rendered in regular script (kaishu) in raised relief against a flat inner field, bounded by a raised inner rim surrounding the square hole and a raised outer rim encircling the coin. The surfaces exhibit a deep green patina consistent with long burial, with areas of cuprite and mineral encrustation visible throughout the field. |
|---|---|
| 正面文字 | 登录 以查看详情 |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | Reverse is entirely plain, displaying no inscriptions, symbols, or decorative elements. The flat field is bounded by a raised inner rim around the square central perforation and a raised outer rim at the edge of the flan, consistent with standard cast cash coin construction. The surface is covered with the same green and blue-green patina as the obverse, with localized mineral deposits and corrosion products across the field. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | Plain |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 | 登录 以查看详情 |