Switzerland
Round overprint Service du Bureau International du Travail
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | BIT/ILO - International Labor Bureau |
| Nominal: | 30 Ct. |
| Year: | 1938 |
| Size: | 41 x 26 mm |
| Perforation: | comb 11¼ |
| Mintage: | 72,000 |
BIT/ILO - International Labor Bureau
