1975-12-25: Historic Ships (I)

1975-11-27: Bulgarian history

1975-10-23: Moths 1975

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

1975-07-08: Illuminated initials old Bulgarian manuscripts

1975-06-30: Regional Traditional Costumes

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

1975-05-20: 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