Şimdi gösteriyor: İsviçre - ILO (1923 - 1994) - 3 pullar.
1975
People at Work
13. Şubat WM: Hiçbiri Tasarım: Hans Erni. Gravür: Courvoisier. S.A. Perforasyon: 11¾
![[People at Work, tip Q]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/Q-s.jpg)
![[People at Work, tip R]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/R-s.jpg)
![[People at Work, tip S]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/S-s.jpg)
