1959 Airmail – The 100th Anniversary of the Death of Alexander von Humboldt, 1769-1859
1959 Airmail – The 100th Anniversary of the Death of Alexander von Humboldt, 1769-1859
Ecuador
1959 Airmail – The 75th Anniversary of “El Telegrafo”
1959 Airmail – The 75th Anniversary of “El Telegrafo”
1958 Airmail – Paul Rivet Commemoration, 1876-1958
1958 Airmail – Paul Rivet Commemoration, 1876-1958
1958 Airmail – The 400th Anniversary of the Death of Emperor Charles V, 1500-1558
1958 Airmail – The 400th Anniversary of the Death of Emperor Charles V, 1500-1558
1958 Inauguration of UNESCO Headquarters Building, Paris
1958 Inauguration of UNESCO Headquarters Building, Paris
1958 Airmail – National Stamp Exbhibition “EXFIGUA” – Guayaquil, Ecuador
1958 Airmail – National Stamp Exbhibition “EXFIGUA” – Guayaquil, Ecuador
1958 Airmail – The 3rd National Eucharistic Congress, Guayaquil
1958 Airmail – The 3rd National Eucharistic Congress, Guayaquil