Inauguration of La Silla Astronomical Observatory 1973
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1973
Inauguration of La Silla Astronomical Observatory
25. April 窗口管理器: 空缺 雕版: Casa de Moneda de Chile. 篩孔: 15
![[Inauguration of La Silla Astronomical Observatory, 類型 UE]](https://www.stampworld.com/media/catalogue/Chile/Postage-stamps/UE-s.jpg)
