Stamp Day
1987 Stamp Day - The 105th Anniversary of the Birth of Jakub Obrovsky ,Stamp Designer
1989 Stamp Day - The 5th Anniversary of the Death of Cyril Bouda, Stamp Designer
1988 The 125th Anniversary of Slovak Cultural Society
2017 Stamp Day - The 90th Anniversary of the Sainte-Croix Philatelic Society
1999 Environmental Protection - Ecophila Day of the Stamp