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1975 Airmail – The 3rd Ecuadorian Games, Quito
1975 Airmail – The 3rd Ecuadorian Games, Quito
1975 The 3rd Anniversary of 15th February Revolution
1975 The 3rd Anniversary of 15th February Revolution
1975 Airmail – Jorge Delgado Panchana Commemoration
1975 Airmail – Jorge Delgado Panchana Commemoration
1975 Airmail – The 100th Anniversary of the Birth of Juan de Dios Martinez Mera, President, 1932-33, 1875-1955
1975 Airmail – The 100th Anniversary of the Birth of Juan de Dios Martinez Mera, President, 1932-33, 1875-1955
1975 Airmail – The 3rd Eucharistic Congress, Quito
1975 Airmail – The 3rd Eucharistic Congress, Quito