Zobrazujú sa: Švajčiarsko - ILO (1930 - 1939) - 3 známky.
1939
Switzerland Postage Stamps of 1938 Overprinted "S.d.N - Bureau - international - du Travail"
25. apríl WM: nikto Perforácia: 11¾
![[Switzerland Postage Stamps of 1938 Overprinted "S.d.N - Bureau - international - du Travail", typ J]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/J-s.jpg)
![[Switzerland Postage Stamps of 1938 Overprinted "S.d.N - Bureau - international - du Travail", typ J1]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/J1-s.jpg)
![[Switzerland Postage Stamps of 1938 Overprinted "S.d.N - Bureau - international - du Travail", typ J2]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/J2-s.jpg)
