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| 正面描述 | Central square perforation surrounded by a raised inner rim, with four Chinese characters in regular script (kaishu) arranged in cruciform fashion around the hole, reading top-bottom, right-left: 乾 (Qian), 亨 (Heng), 通 (Tong), 寶 (Bao). The characters are rendered in bold relief against a flat field and are enclosed within a plain outer rim. The overall design follows the standard Tang-derived cash coin convention, with no additional decorative elements in the field. The coin exhibits characteristic green and blue-grey patination consistent with burial bronze. |
|---|---|
| 正面文字 | Chinese (traditional, regular script) |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | Plain, uniface reverse bearing no inscription or decorative device. The surface is flat with a raised inner rim framing the central square perforation and a plain outer rim at the coin's edge. The reverse displays extensive dark grey and olive-green patination with areas of cuprite and malachite deposits, consistent with prolonged burial. No mint marks or secondary symbols are present. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | 登录 以查看详情 |
| 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 |