චෙකස්ලෝවැකියාව
දැන් පෙන්වන්නේ: චෙකස්ලෝවැකියාව - තැපැල් මුද්දර (1918 - 1992) - 1 මුද්දර .
1987
The 125th Anniversary of Union of Czech Mathematicians and Physicists
6. July WM: කිසිවක් නැත මෝස්තරය: J. Hamza කැටයම: vedi francobollo සිදුර: 11¼ x 12
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, වර්ගය CLX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLX-s.jpg)
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, වර්ගය CLY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLY-s.jpg)
![[The 125th Anniversary of Union of Czech Mathematicians and Physicists, වර්ගය CLZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/CLZ-s.jpg)
