Inauguration of Astronomical Observatory, Cerro el Tololo 1971
Rāda: Čīle - Pastmarkas - 1971 - Inauguration of Astronomical Observatory, Cerro el Tololo - 1 marka.
1971
Inauguration of Astronomical Observatory, Cerro el Tololo
3. decembris SV: Neviens iegravēt: Casa de Moneda de Chile. Perforēšana: 15
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