Ora in esposizione: Svizzera - Nazioni Unite (1960 - 1963) - 2 francobolli.
1963
UNCSAT - United Nations Conference on Science and Technology
4. Febbraio WM: Nessuno Dentellatura: 11¾
![[UNCSAT - United Nations Conference on Science and Technology, Scrivi I]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UN/I-s.jpg)
![[UNCSAT - United Nations Conference on Science and Technology, Scrivi J]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UN/J-s.jpg)
