04. 03. 2021 Lecture (KF 00-15): Postal history of the Czech lands 1850 - 1858, rarities and attractionsLecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic)
01. 04. 2021 Lecture (KF 00-15): 100 years since the establishment of the post office at Kbely Airport and its use by airmailLecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic)
06. 05. 2021 Lecture (KF 00-15): Blue Mercury (1851) - Typology, postal use, and quality descriptionLecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic)
03. 06. 2021 Lecture (KF 00-15): Blue prints of digital franking machinesLecture witin the regular cycle of lectures organized by the KF 00-15 Club of collectors of specialized areas in Prague (Czech Republic)
22. 02. 2021 Filatelistické state ZSF (Philatelic textbooks ZSF) - a constant source of philatelic knowledge and information