Now showing: Switzerland - UPU (1957 - 2012) - 1 stamps.
1989
UPU - Inscription "Union Postale Universelle"
7. March WM: None Design: Burkard Waltenspül. Engraving: Courvoisier. S.A. Perforation: 11¾
![[UPU - Inscription "Union Postale Universelle", type H]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/H-s.jpg)
