historical, aerial photograph, San Francisco International Airport, SFO, San Francisco, 1946, 1940s, aeronautics, air, airport, aviation, diagonal, field, flight, flight, flying, general, infrastructure, landing, landings, marking, markings, pavement, rubber, runway, runways, terminal, transport, transportation, travel, traveling, taxiway, antique, historic, old, vintage, growth, development, conservation, ecology, ecosystem, environment, environmental, habitat, landscape, tidal, marsh, marshland, wetland, wildlife, aerial, map, straight, down, satellite, image, imagery, vertical, aerialarchives, aerials, air, elevated, from, high, image, over, overhead, overlooking, overview, photograph, photography, views, diagonal, America, American, California, Californian, CA west, western, United States, US, USA, 1946