Dabar rodoma: Šveicarija - TDO (1923 - 1994) - 3 ženklai.
1975
People at Work
13. vasaris WM: Niekas Dizainas: Hans Erni. Graviravimas: Courvoisier. S.A. Perforacija: 11¾
![[People at Work, tipas Q]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/Q-s.jpg)
![[People at Work, tipas R]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/R-s.jpg)
![[People at Work, tipas S]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/S-s.jpg)
