Viser nu Schweiz - ILO (1970 - 1979) - 3 frimærker.
1975
People at Work
13. februar VM: Ingen Design: Hans Erni. Gravering: Courvoisier. S.A. Perforeringer: 11¾
![[People at Work, type Q]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/Q-s.jpg)
![[People at Work, type R]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/R-s.jpg)
![[People at Work, type S]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/S-s.jpg)
