1952 Airmail – Birds 1952 Olympic Games – Oslo 1952 1952 The 150th Anniversary of the Birth of Karl Ritter von Ghega, 1802-60 1952 The 100th Anniversary of the Birth Josef Schrammel 1952 Day of the Stamp 1952 The 200th Anniversary of Schönbrunn Zoo 1952 IUSY Camp – Vienna 1952 1952 The 150th Anniversary of the Birth of Nikolaus Lenau, 1802-1850 1952 Assembly of Austrian Catholics 1952 International Children’s Correspondence 1952 National Costumes 1953 The 50th Anniversary of the Death of Hugo Wolf 1953 The 80th Anniversary of the Birth of Dr. Theodor Körner 1953 The 60th Anniversary of the Austrian Trade Union Movement 1953 Airmail – Birds 1953 The 150th Anniversary of the Linz Landestheater 1953 The Reconstruction of the Protestant School at Karlsplatz Square, Vienna 1953 Merry Christmas 1953 Day of the Stamp 1954 The 150th Anniversary of the Birth of Moritz von Schwind, 1804-71 1954 The 50th Anniversary of the Birth of Baron Karl Freiherr von Rokitansky, 1804-78 1954 Charity Stamp for Avalanche Victims. No. 659 Overprinted 1954 Child Care 1954 The 50th Anniversary of Esperanto in Austria 1954 The 25th Anniversary of the Death of Dr. Carl Auer Baron of Welsbach 1954 The 300th Anniversary of the Birth of Michael Rottmayer von Rosenbrunn, 1654-1730 1954 The 2nd International Congress of Catholic Church Music 1954 Merry Christmas 1954 Day of the Stamp 1954 The 150th Anniversary of the Austrian State Printing Works 1955 The 10th Anniversary of the Restoration of Austrian Independence 1955 State Treaty