Now showing: Switzerland - ITU (1970 - 1979) - 1 stamps.
1973
ITU Headquarters, Geneva
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)
