Switzerland
William Tell's Son Mi:CH 202x, Sn:CH 163, Yt:CH 199 overprinted "S.d.N. Bureau international du Travail"
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | BIT/ILO - International Labor Bureau |
| Nominal: | 7½ Ct. |
| Year: | 1928 |
| Material: | normal, light chrome yellow |
| Perforation: | comb 11¾ |
| Mintage: | 140,000 |
BIT/ILO - International Labor Bureau
