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| 正面描述 | The obverse depicts the Mariner 10 spacecraft in high relief against a dark field, with its extended solar panels and antenna boom prominently rendered. A cratered planet, representing Mercury, is shown in the upper field with curved trajectory lines arcing across the design. The surrounding legend reads MARINER 1973 at the top and VENUS - MERCURY at the bottom, with FIRST MERCURY PHOTOS and the Roman numeral X inscribed within the inner field. |
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| 背面文字 | Latin |
| 背面铭文 | CALIF. INSTITUTE OF TECHNOLOGY - JET PROPULSION LABORATORY THE CALTECH - JPL NUMISMATIC SOCIETY COMMEMORATES ACHIEVEMENTS IN SPACE EXPLO- RATION |
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