02. 05. 2024 Lecture (KF 00-15): From the history of the post office of the city of Prague until 1918Lecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic).
06. 06. 2024 Lecture (KF 00-15): The personality of Albert Jonáš and his contribution to Czechoslovak philatelyLecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic).