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| 正面描述 | Central field features a highly detailed, high-relief depiction of an astrolabe rendered in a circular composition, its intricate graduated rings, rete, and pointer rendered with fine engraving. Surrounding the astrolabe in the right and lower portions of the field are celestial bodies — planets and moons — shown in relief against a textured, antiqued background evoking the cosmos. The legend 'TÜRKİYE CUMHURİYETİ REPUBLIC OF TURKİYE' arcs along the upper periphery, while the denomination '20 Türk Lirası' and the date '2024' appear along the left and lower border respectively. |
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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 | High-relief depiction of the Ottoman astronomer and mathematician Ali Qushji (Ali Kuşçu) shown in three-quarter view, seated and gazing through a large telescope mounted on a tripod atop a stone parapet. Open books and manuscripts are arranged at his feet in the lower field. The background features a sweeping celestial panorama with stars, planets, and orbital arcs rendered in fine detail against a deeply antiqued field. The legend 'ALİ KUŞÇU' arcs across the upper portion of the field, with the dates '1403 - 1474' inscribed below, commemorating the scholar's lifespan. |
| 背面文字 | Latin |
| 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 |