South America

1961 -1964 Airmail

1961 National Census

1960 Airmail – Rotary International South American Regional Conference, Santiago

1960 -1961 The 150th Anniversary of 1st National Government

1960 World Refugee Year

1960 -1961 Airmail

1960 Personalities

1959 Red Cross Commemoration

1959 The 50th Anniversary of the Death of Diego Barros-Arana, Historian, 1830-1907

1959 The 400th Anniversary of Juan Ladrillero’s Expedition of 1557