Zobrazujú sa: Švajčiarsko - ILO (1923 - 1994) - 3 známky.
1975
People at Work
13. február WM: nikto Dizajn: Hans Erni. Rytina: Courvoisier. S.A. Perforácia: 11¾
![[People at Work, typ Q]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/Q-s.jpg)
![[People at Work, typ R]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/R-s.jpg)
![[People at Work, typ S]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/S-s.jpg)
