South America

1961 Child Welfare WM: 9

1961 World Town Planning Day WM: 9

1961 International Philatelic Exposition, Argentina 1962 WM: 9

1961 International Philatelic Exposition, Argentina 1962 WM: 9

1961 The 150th Anniversary of the Birth of Sarmiento WM: 9

1961 The 400th Anniversary of the Jujuy City WM: 9

1961 The 10th Anniversary of the San Martin Antarctic Base WM: 9

1961 The General Manuel Belgrano Commemoration WM: 9

1961 Inaugauration of the Spanish San Martin Monument WM: 9

1961 The 100th Anniversary of the Birth of Rabindranath Tagore, Indian Poet WM: 9