Зараз паказаны: Швейцарыя - АН (1960 - 1963) - 2 маркi.
1963
UNCSAT - United Nations Conference on Science and Technology
4. лютага WM: Няма Перфарацыя: 11¾
![[UNCSAT - United Nations Conference on Science and Technology, тып I]](https://www.stampworld.com/media/catalogue/Switzerland/UN/I-s.jpg)
![[UNCSAT - United Nations Conference on Science and Technology, тып J]](https://www.stampworld.com/media/catalogue/Switzerland/UN/J-s.jpg)
