Argentina

1960 The 100th Anniversary of the Birth of Drago WM: 9

1960 Airmail – New Argentine Provinces WM: 9

1960 The 150th Anniversary of the May Revolution WM: 9

1960 The 150th Anniversary of the May Revolution WM: 9

1960 Airmail – The 150th Anniversary of the May Revolution WM: 9

1960 The 150th Anniversary of the May Revolution WM: 9

1960 The 150th Anniversary of the Birth of Abraham Lincoln WM: 9

1960 World Refugee Year WM: 9

1960 Child Welfare – Birds WM: 9

1959 The 100th Anniversary of the Pact of San Jose de Flores WM: 9