1956-12-21: Relief for Hungarian Refugees

1956-12-01: Stamp Day

1956-07-20: 300th Birth Anniversary - Johann Bernhard Fischer von Erlach

1956-06-08: 23rd International Congress for Housing and Town Planning

1956-05-08: 5th World Energy Conference, Vienna

1956-02-20: Austria's Admission to the UN

1956-02-20: Austria's Admission to the UN

1956-01-21: Birth Bicentenary of Wolfgang Amadeus Mozart

1956-01-21: Birth Bicentenary of Wolfgang Amadeus Mozart

1956: Birds