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| 正面描述 | The obverse depicts a high-relief representation of the Mariner IX spacecraft in the central field, with extended solar panels rendered in detail, shown in orbit above a stylized globe of Mars at lower left. An elliptical orbital path surrounds the composition, and the legend MARINER 1971 IX arcs along the upper border, with FIRST MARS ORBITER inscribed in the field to the right of the spacecraft and ORBITAL EXPLORATION along the lower border. A small engraver's monogram appears near the lower rim. |
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| 正面文字 | Latin |
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| 背面描述 | The reverse features a fully inscribed field with the commemorative text of the Caltech-JPL Numismatic Society arranged in multiple lines across the central area, enclosed within a raised inner border. The outer legend reads CALIF. INSTITUTE OF TECHNOLOGY - JET PROPULSION LABORATORY running around the full circumference, separated from the inner inscription by a raised concentric ring. |
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