지금 보여주기: 스위스 - ITU (1970 - 1979) - 4 우표.
30. 8월 WM: 없음 디자인: Alfred Cserno y Jean - Jacques Chevalley. 판화: Courvoisier. S.A. 절취선: 11¾
![[ITU Headquarters, Geneva, 유형 C]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/C-s.jpg)
12. 2월 WM: 없음 디자인: Alfred Cserno, Heinrich Heusser y Jean - Jacques Chevalley. 절취선: 11¾
![[ITU Activities, 유형 D]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/D-s.jpg)
![[ITU Activities, 유형 E]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/E-s.jpg)
![[ITU Activities, 유형 F]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/F-s.jpg)
