120th birth anniversary of Patriarch Kiril Bulgarski - m/s

Chinese New Year, Year of the White Metal Ox - perforated s/s

Chinese New Year, Year of the White Metal Ox - 2 imperforated s/s

100th birth anniversary of John Glenn and 50 years since Apollo 14 - s/s

550th birth anniversary of Albrecht Dürer - s/s

150th birth anniversary of Dame Gruev - 1 v.

100 years since the announcement of Varna as a resort town - 1 v.

200th birth anniversary of Georgi Stoykov Rakovski - 1 v.

50 years Institute of Air Transport - 1 v.

Europa 2021: Endangered national wildlife - 2 m/s

Europa 2021: Endangered national wildlife - s/s

Europa 2021: Endangered national wildlife - booklet

60 years since the flight of the first man in space Yuri Gagarin - 2 s/s

100 years of the National Academy of Music "Prof. Pancho Vladigerov" - 1 v.

Cultural and historical heritage, 800 years Ivanovo rock monastery - 2 v.

Three Seas Initiative - s/s

30 years Federation of the cultural and educational societies of the Karakachans in Bulgaria

90 years since the establishment of diplomatic relations between Bulgaria and Argentina

140 years since the establishment of the Higher Naval School "Nikola Yonkov Vaptsarov"

European Year of Railway Transport, 100 years of the Rhodope narrow-gauge railway - s/s

30 years of New Bulgarian University - 1 v.

Great explorers, Umberto Nobile - 2 s/s

400th birth anniversary of Jean de La Fontaine - s/s

160th birth anniversary of General Ivan Kolev - s/s

70 years since the establishment of the State Archives in Bulgaria - 1 v.

100 years of the Bulgarian Youth Red Cross - s/s

70 years since the founding of Graf Ignatievo Air Base - s/s

200th birth anniversary of Dostoevsky - 1 v.

50 years of Shumen University - s/s

Christmas 2021 - 1 v.

450th birth anniversary of Caravaggio - s/s

Flora: Predatory Plants - s/s

130 years since the establishment of the Military Medical Academy - 1 v.

25 years since the resumption of the Supreme Administrative Court - 1 v.

Bulcollecto, Chinese New Year 2022, the Year of the Tiger - 2 s/s

125 years of the National Academy of Arts - 1 v. with a tab

40 years of the National Donation Fund "13 Centuries of Bulgaria" - 1 v.

125th birth anniversaries of Acad. Nikola Obreshkov and Acad. Georgi Nadjakov - 2 v.

30 years since the founding of the Atlantic Club in Bulgaria - 2 s/s

120 years since the launch of the first tram in Sofia - s/s

Fauna: Game Birds - 4 m/s

Fauna: Game Birds - 2 s/s

Birth anniversaries of Bulgarian actresses and composers - 2 v.