Grimsel Reservoir (BIE/IBE overprint)
20 Ct. 1950
Switzerland
overprinted "BUREAU INTERNATIONAL D'ÉDUCATION"
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | BIE/IBE - International Bureau of Education |
| Nominal: | 20 Ct. |
| Year: | 1950 |
| Perforation: | comb 11¾ |
| Mintage: | 35,600 |
BIE/IBE - International Bureau of Education
