Ecuador

1961 Airmail – Opening of Marine Biology Station on Galapagos Islands and 15th Anniversary of UNESCO

1961 Opening of Marine Biology Station on Galapagos Islands and 15th Anniversary of UNESCO

1961 Airmail – The 100th Anniversary of Re-establishment of “National Integrity”

1961 Butterflies

1961 The 400th Anniversary of the City of Tena

1961 Airmail – The 100th Anniversary of Los Rios Province

1961 Airmail – The 3rd International Philatelic Exhibition, Quito

1961 Airmail – Hugo Ortiz Garces

1961 Airmail – The 100th Anniversary of Tungurahua Province

1961 Airmail – Amazon Week