The 100th Anniversary of the Cordoba Observatory 1971
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1971
The 100th Anniversary of the Cordoba Observatory
27. November WM: None Design: Horacio Rómulo Álvarez Boero. Engraving: Casa de Moneda S.E., Buenos Aires. Perforation: 13½
![[The 100th Anniversary of the Cordoba Observatory, type AEG]](https://www.stampworld.com/media/catalogue/Argentina/Postage-stamps/AEG-s.jpg)
