Wordt nu getoond: Zwitserland - ITU (1958 - 2003) - 3 postzegels.
1976
ITU Activities
12. februari WM: Geen Ontwerp: Alfred Cserno, Heinrich Heusser y Jean - Jacques Chevalley. Perforatie: 11¾
![[ITU Activities, type D]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/ITU/D-s.jpg)
![[ITU Activities, type E]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/ITU/E-s.jpg)
![[ITU Activities, type F]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/ITU/F-s.jpg)
