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| 正面描述 | The obverse features the fourth definitive effigy of Queen Elizabeth II, depicted as a right-facing draped bust wearing the George IV State Diadem. The portrait, modeled by Ian Rank-Broadley, is rendered in high relief with fine detail in the hair and crown. The engraver's initials 'IRB' appear below the truncation. The legend 'ELIZABETH II' arcs along the upper left rim and 'NIUE ISLAND' along the upper right, while the denomination '50 CENTS' and date '2015' are inscribed along the lower rim, all separated by a beaded border. |
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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 | The reverse depicts a stylized figure of a centaur in high relief, rendered in a classical artistic manner, arching dynamically across the upper portion of the coin field with flowing hair and muscular form. Behind and around the figure, the field is engraved with astronomical and mathematical formulae, proportional notations, and celestial references in fine incuse lettering, evoking Renaissance scientific manuscripts. The lower third of the coin features a full-color photographic inset of the galaxy Centaurus A (NGC 5128), showing its distinctive dust lane and jets against a deep-space background. The legend 'CENTAURUS A' appears in bold relief along the left field, flanked by rows of five-pointed stars. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | Reeded |
| 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 |