Rāda: Šveice - ITU (1970 - 1979) - 1 marka.
1973
ITU Headquarters, Geneva
30. augusts SV: Neviens Dizains: Alfred Cserno y Jean - Jacques Chevalley. iegravēt: Courvoisier. S.A. Perforēšana: 11¾
![[ITU Headquarters, Geneva, veids C]](https://www.stampworld.com/media/catalogue/Switzerland/ITU/C-s.jpg)
