Europe
1974 The 175th Anniversary of the Death of Carl Ditters von Dittersdorf
1974 The 175th Anniversary of the Death of Carl Ditters von Dittersdorf
1974 The 25th Anniversary of the Sports Pool
1974 The 25th Anniversary of the Sports Pool
1974 The 100th Anniversary of the Universal Postal Union (UPU)
1974 The 100th Anniversary of the Universal Postal Union (UPU)
1974 The 25th Anniversary of the Death of Edmund Eysler
1974 The 25th Anniversary of the Death of Edmund Eysler
1974 The 50th Anniversary of the Austrian Broadcasting Corporation
1974 The 50th Anniversary of the Austrian Broadcasting Corporation
1974 The 100th Anniversary of the Birth of Arnold Schönberg
1974 The 100th Anniversary of the Birth of Arnold Schönberg