Τσεχοσλοβακία
Τώρα εμφανίζεται Τσεχοσλοβακία - Γραμματόσημα (1918 - 1992) - 1 Γραμματόσημα.
1957
The 300th Anniversary of Publication of Komensky's Opera Didactica Omnia
28. Μάρτιος WM: Κανένα Διάτρηση: 11½
![[The 300th Anniversary of Publication of Komensky's Opera Didactica Omnia, τύπος QN]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/QN-s.jpg)
![[The 300th Anniversary of Publication of Komensky's Opera Didactica Omnia, τύπος QO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/QO-s.jpg)
![[The 300th Anniversary of Publication of Komensky's Opera Didactica Omnia, τύπος QP]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/QP-s.jpg)
![[The 300th Anniversary of Publication of Komensky's Opera Didactica Omnia, τύπος QQ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/QQ-s.jpg)
