1975-12-25: Historic Ships (I)

1975-12-22: New Year 1976

1975-12-17: European Architectural Heritage Year

1975-12-05: 90 Years Bulgarian Red Cross

1975-11-27: Bulgarian history

1975-11-11: 100th Birth of Dobri Christov

1975-10-29: Conference on European Security and Cooperation

1975-10-24: UN (United Nations), 30th Anniversary

1975-10-23: Moths 1975

1975-09-21: 8th Soccer Intertoto Congress, Varna

1975-08-21: Stamp Exhibition BALKANFILA V

1975-08-05: Special Exhibition EXPO '75, Okinawa

1975-07-15: American-Soviet space company Apollo-Soyuz

1975-07-09: 125th Birthday of Ivan Vazov Mintschov

1975-07-08: Illuminated initials old Bulgarian manuscripts

1975-06-30: Regional Traditional Costumes

1975-06-06: World Graphics Exhibition, Sofia-Drawings-Engravings

1975-05-30: Youth Resistance Fighters

1975-05-20: International Women’s Year

1975-05-15: Festival of Humor and Satire, Gabrovo

1975-03-28: 500th birthday of Michelangelo

1975-03-25: 50th Anniversary for the Higher Forest Technical Institute

1975-03-21: 100th Anniversary of the International Meter Convention

1975-03-20: Victory over Fascism

1975-02-24: International Stamp Exhibition ESPANA'75

1975-02-20: Bulgarian Agrarian Peoples Union

1975-02-03: Fruit tree blossoms