Poland
| Country: | Poland |
| Type: | Postage stamps |
| Series: | Intl.Bureau of Education |
| Nominal: | 11+19 zł |
| Year: | 1946 |
| Perforation: | frame 11½ |
| Mintage: | 102,500 |
Intl.Bureau of Education
 School children |  Courtyard of Jagiellonian University |  Grzegorz Piramowicz (1735-1801) |