Stamps of Argentina, 27 Nov 1971
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postage
1971, Nov 27 25th Aeronautics and Space Week issue unwmk (no perf info)
| - | 25c | multi | Capt. D. L. Candelaria and Morane Saulni… |
1971, Nov 27 100th Anniversary of the Cordoba Observatory issue
| - | 25c | multi | Observatorio Astronomico de Cordoba |
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