Zobrazujú sa: Švajčiarsko - UPU (1990 - 1999) - 3 známky.
28. november WM: nikto Dizajn: Burkard Waltenspül. Perforácia: 13¼
![[UPU - Inscription "Union Postale Universelle", typ I]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/I-s.jpg)
9. marec WM: nikto Dizajn: Jean - Michel Folon. Perforácia: 13¼
![[The 125th Anniversary of Universal Postal Union, typ J]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/J-s.jpg)
![[The 125th Anniversary of Universal Postal Union, typ K]](https://www.stampworld.com/media/catalogue/Switzerland/UPU/K-s.jpg)
Zobrazujú sa: Švajčiarsko - UPU (1990 - 1999) - 3 známky.
28. november WM: nikto Dizajn: Burkard Waltenspül. Perforácia: 13¼
9. marec WM: nikto Dizajn: Jean - Michel Folon. Perforácia: 13¼
