Viser nå: Sveits - ITU (1958 - 2003) - 3 frimerker.
1976
ITU Activities
12. February VM: Ingen Design: Alfred Cserno, Heinrich Heusser y Jean - Jacques Chevalley. Perforering: 11¾
![[ITU Activities, type D]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/D-s.jpg)
![[ITU Activities, type E]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/E-s.jpg)
![[ITU Activities, type F]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/F-s.jpg)