Wordt nu getoond: Zwitserland - ILO (1970 - 1979) - 3 postzegels.
1975
People at Work
13. februari WM: Geen Ontwerp: Hans Erni. Graveren: Courvoisier. S.A. Perforatie: 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)
