'First Atlantic survey flight to Lisbon.' Another shot confirms the registration. NC16736 wore the name Pan American Clipper III just a month earlier. Photo probably taken off Alverca which handled seaplanes until 1938 when the Aeroporto Marítimo de Cabo Ruivo was established near the new landplane airport at Portela. Photo from: University of Miami
This photo was added on 13 January 2022, and has since been viewed 356 times.