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1959 Airmail – The 150th Anniversary of Independence

1959 Airmail – The 100th Anniversary of the Birth of Alfredo Baquerizo Moreno, 1859-1931, and Jose Lluis Tamayo, 1858-1947

1959 Airmail – The 100th Anniversary of the Death of Alexander von Humboldt, 1769-1859

1959 Airmail – The 75th Anniversary of “El Telegrafo”

1958 Airmail – Paul Rivet Commemoration, 1876-1958

1958 International Geophysical Year

1958 Airmail – The 400th Anniversary of the Death of Emperor Charles V, 1500-1558

1958 Airmail – Imbabura Cantonal Arms

1958 Inauguration of UNESCO Headquarters Building, Paris

1958 Tropical Birds