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1939 Airmail – San Francisco International Exhibition
1939 Airmail – San Francisco International Exhibition
1939 San Francisco International Exhibition
1939 San Francisco International Exhibition
1939 Airmail – Ryan B-5 Brougham over Mount Chimborazo
1939 Airmail – Ryan B-5 Brougham over Mount Chimborazo
1939 Airmail – Ecuadorean Victories at South American Olympic Games, La Paz
1939 Airmail – Ecuadorean Victories at South American Olympic Games, La Paz
2019 The 25th Anniversary of the Tiputuni Biodiversity Station
2019 The 25th Anniversary of the Tiputuni Biodiversity Station
2019 Ethnohistoric Museum of Handicrafts
2019 Ethnohistoric Museum of Handicrafts
2019 Ethnohistoric Museum of Handicrafts
2019 Ethnohistoric Museum of Handicrafts
2019 Ethnohistoric Museum of Handicrafts
2019 Ethnohistoric Museum of Handicrafts