Сега показвам: Швейцария - МРО (1970 - 1979) - 3 марки.
1975
People at Work
13. Февруари воден знак: Никой дизайн: Hans Erni. Гравиране: Courvoisier. S.A. Пробиване: 11¾
![[People at Work, тип Q]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/Q-s.jpg)
![[People at Work, тип R]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/R-s.jpg)
![[People at Work, тип S]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/S-s.jpg)
