Now showing: Switzerland - UPU (1970 - 1979) - 4 stamps.
1976
UPU - Inscription "Union Postale Universelle"
16. September WM: None Design: Burkard Waltenspül. Engraving: Courvoisier. S.A. Perforation: 11¾
![[UPU - Inscription "Union Postale Universelle", type C]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/C-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type D]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/D-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type E]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/E-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type F]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/F-s.jpg)