Ora in esposizione: Svizzera - Unione Postale Universale (1957 - 2012) - 4 francobolli.
1976
UPU - Inscription "Union Postale Universelle"
16. Settembre WM: Nessuno Disegno: Burkard Waltenspül. Incisione: Courvoisier. S.A. Dentellatura: 11¾
![[UPU - Inscription "Union Postale Universelle", Scrivi C]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/C-s.jpg)
![[UPU - Inscription "Union Postale Universelle", Scrivi D]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/D-s.jpg)
![[UPU - Inscription "Union Postale Universelle", Scrivi E]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/E-s.jpg)
![[UPU - Inscription "Union Postale Universelle", Scrivi F]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/F-s.jpg)