Zobrazujú sa: Švajčiarsko - ILO (1980 - 1989) - 2 známky.
1983
People at Work
22. august WM: nikto Rytina: Courvoisier. S.A. Perforácia: 11¾
![[People at Work, typ T]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/T-s.jpg)
1988
People at Work
13. september WM: nikto Perforácia: 11¾
![[People at Work, typ U]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/U-s.jpg)
