Now showing: Switzerland - UPU (1957 - 2012) - 1 stamps.
1983
UPU - Inscription "Union Postale Universelle"
22. August WM: None Design: Burkard Waltenspül. Engraving: Courvoisier. S.A. Perforation: 11¾
![[UPU - Inscription "Union Postale Universelle", type G]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/UPU/G-s.jpg)
