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No todo lo que brilla es oro
(Pontificia Universidad Católica del Perú, 2022-10-19)
This philatelic corner is a tribute to pyrite, a brilliant mineral with attractive geometric shapes that has always excited collectors and geologists worldwide and whose relevance has been captured on the stamps of many countries.
Tan sólo una palabra: Plásticos
(Pontificia Universidad Católica del Perú, 2013-03-26)
Elementos químicos y la Exposición Peruana en París de 1958
(Pontificia Universidad Católica del Perú, 2018-09-28)
The stamps of the Peruvian Exhibition in Paris of 1958 and the chemical elements present in them
El Dr. Carvallo, Ricardo Palma y los rayos X
(Pontificia Universidad Católica del Perú, 2020-09-14)
The discovery of X-rays by Wilhelm Conrad Röntgen and their introduction in Peru by Dr. Carvallo is the central theme of the philatelic corner.