The 150th Anniversary of Scientific Observations of the Earth 2022
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2022
The 150th Anniversary of Scientific Observations of the Earth
27. May WM: None Sheetsize: 50 Design: L'ubuslav Pal'o Engraving: Tiskárna Hradištko. Perforation: 13½
![[The 150th Anniversary of Scientific Observations of the Earth, type AFL]](https://www.stampworld.com/media/catalogue/Slovakia/Postage-stamps/AFL-s.jpg)
