The 100th Anniversary of the Meteorological World Organization 1973
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1973
The 100th Anniversary of the Meteorological World Organization
31. July WM: None Design: Jan Boterman. Engraving: Joh. Enschedé. Perforation: 14 x 12¾
![[The 100th Anniversary of the Meteorological World Organization, type WO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Netherlands/Postage-stamps/WO-s.jpg)
