Wordt nu getoond: Zwitserland - UPU (1957 - 2012) - 4 postzegels.
1976
UPU - Inscription "Union Postale Universelle"
16. september WM: Geen Ontwerp: Burkard Waltenspül. Graveren: Courvoisier. S.A. Perforatie: 11¾
![[UPU - Inscription "Union Postale Universelle", type C]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/C-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type D]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/D-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type E]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/E-s.jpg)
![[UPU - Inscription "Union Postale Universelle", type F]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/F-s.jpg)
