The 50th Anniversary of the National Institute of Astrophysics 2021
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2021
The 50th Anniversary of the National Institute of Astrophysics
11. november WM: Inga Design: Nanc Torres Lopez Gravyr: Talleres de Impresión de Estampillas y Valores. Perforering: 10
![[The 50th Anniversary of the National Institute of Astrophysics, Typ EYB]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/EYB-s.jpg)
