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| 正面描述 | The obverse features a high-relief portrait bust of Leonardo da Vinci facing slightly left, rendered with fine detail showing his characteristic long flowing hair and full beard. The legend LEONARDO DA VINCI curves along the lower portion of the field. |
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| 正面文字 | 登录 以查看详情 |
| 正面铭文 | LEONARDO DA VINCI |
| 背面描述 | The reverse depicts Da Vinci's ornithopter flying machine design in relief against a stippled field, with the curved legend CONCEPT OF MANNED FLIGHT arching along the upper portion and the date 1490 in the lower exergue. |
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| 铸造机构 | 登录 以查看详情 |
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