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| 正面描述 | Central square perforation surrounded by a plain raised square rim. Two Chinese characters, reading right to left as 'Wu Zhu' (五銖, 'Five Zhu'), occupy the left and right fields flanking the central hole. The characters are rendered in a stylized 'four pillar' script, with the 'Zhu' (銖) character at left exhibiting notably elongated vertical strokes characteristic of this variety. A single raised dot appears in the field above the square hole and a second raised dot below, serving as mint or variety marks. The outer rim is plain and slightly raised, and the surfaces bear an even olive-green patina consistent with age. |
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| 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 | Plain field surrounding the central square perforation, which is framed by a raised square rim. Two small raised dots are positioned symmetrically in the left and right fields at mid-height relative to the square hole, serving as the diagnostic variety marks distinguishing Hartill 10.20 from related issues. The reverse is otherwise uninscribed and devoid of additional design elements, with surfaces covered in a mottled green and tan patina. |
| 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 |
The Wu Zhu denomination had been the backbone of Chinese bronze coinage since its introduction under Emperor Wu of Han in 118 BC, and by the time the Southern Dynasties were cycling through in rapid succession, the type had been debased and recast so many times that a single coin's nominal value bore little relationship to its metal content. The "Four pillar" variety — named for the structural reinforcing lines extending from the central square hole to the rim — was an attempt to address the chronic casting flaw of rim collapse in progressively thinner flans.
557 marks the collapse of the Liang dynasty and the founding of the Chen, the last of the Southern Dynasties before Sui reunification.