Now showing: Switzerland - ITU (1970 - 1979) - 4 stamps.
30. August WM: None Design: Alfred Cserno y Jean - Jacques Chevalley. Engraving: Courvoisier. S.A. Perforation: 11¾
![[ITU Headquarters, Geneva, type C]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/C-s.jpg)
12. February WM: None Design: Alfred Cserno, Heinrich Heusser y Jean - Jacques Chevalley. Perforation: 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)