Switzerland
overprinted "S.d.N. Bureau international du Travail"
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | BIT/ILO - International Labor Bureau |
| Nominal: | 1 Fr. |
| Year: | 1923 |
| Material: | normal fiber paper |
| Size: | 17.5 x 21 mm |
| Perforation: | comb 11¾ |
| Mintage: | 100,000 |
BIT/ILO - International Labor Bureau
