Inauguration of Astronomical Observatory, Cerro el Tololo 1971
Now showing: Chile - Postage stamps - 1971 - Inauguration of Astronomical Observatory, Cerro el Tololo - 1 stamps.
1971
Inauguration of Astronomical Observatory, Cerro el Tololo
3. December WM: None Engraving: Casa de Moneda de Chile. Perforation: 15