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| 正面描述 | Right-facing bust of Jozef Maximilián Petzval in high relief, depicting him as an elderly bearded man. The legend arcs around the upper and right fields, with his birth and death years 1807–1891 positioned in the upper right. |
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| 正面文字 | 登录 以查看详情 |
| 正面铭文 | JOZEF MAXMILIÁN PETZVAL 1807 - 1891 |
| 背面描述 | A detailed relief depiction of a large-format Petzval portrait lens and period camera body mounted on a wooden stand, representing the optical invention that revolutionized 19th-century photography. The series title legend arcs around the left field and the year 2020 appears in the lower right exergue area. |
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