捷克斯洛伐克
现在展示： 捷克斯洛伐克 - （通用）邮票 (1918 - 1992) - 1 邮票.
1987
The 125th Anniversary of Union of Czech Mathematicians and Physicists
6. 七月 窗口管理器: 空缺 设计: J. Hamza 雕版: vedi francobollo 筛孔: 11¼ x 12
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, 类型 CLX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLX-s.jpg)
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, 类型 CLY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLY-s.jpg)
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, 类型 CLZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLZ-s.jpg)
