South America

1949 Constitution Day WM: 9

1949 The 1st Anniversary of the Nationalization of Argentine Railways WM: 11

1949 Airmail – The 4th Meeting of Pan-American Cartographers WM: 11

1948 The 200th Anniversary of the Rio de la Plata Postal Service

1948 The 200th Anniversary of the Rio de la Plata Postal Service

1948 Airmail – The 4th Meeting of Pan-American Cartographers WM: 11

1948 Re-Election of President Peron WM: 12

1948 Agriculture Day WM: 11

1948 The 200th Anniversary of the Rio de la Plata Postal Service

1948 Road Traffic Safety Day