A mostrar agora: Suiça - SDN (1930 - 1939) - 8 selos.
1938
International Labour Organization - Switzerland Postage Stamps of 1938 Overprinted "SOCIÉTÉ - DES - NATIONS"
2. Maio WM: Nada Perfuração: 11¾
1938
International Labour Organization - Switzerland Postage Stamps of 1938 Overprinted "SERVICE DE LA SOCIÉTÉ DES NATIONS"
Setembro WM: Nada Perfuração: 11¾