1973-12-18: Stamp Day

1973-11-27: Art

1973-10-24: Czechoslovak Airlines, 50th Anniversary

1973-10-15: 8th Congress of the World Federation of Trade Unions

1973-09-17: Birth Centenary of Max Švabinský (1873-1962)

1973-09-05: 50 Years of Czechoslovakian Hunting: Hunting Dogs

1973-09: Folk Architecture

1973-08-23: University of Olomouc, 400th Anniversary

1973-08-23: Flora Olomouc

1973-06-20: Coats of arms of the Czechoslovak cities

1973-05-09: 25th anniversary of the constitution on May 9

1973-05-09: Prague Castle

1973-05-01: Communications Anniversaries

1973-04-12: Space Research

1973-03-20: Czechoslovak Martyrs during World War II

1973-02-23: "Victorious February", 25th Anniversary

1973-02-22: Sports 1973

1973-01-25: Czechoslovak Graphic Art 1973