The photo note states this picture dates to 1974; though the newest car in the picture is a 1969. The airliner is a 707, and I think TWA had already retired that model from their fleet by the mid 70's.
http://digitallibrary.usc.edu/assetserver/controller/view/search/CHS-33053
http://digitallibrary.usc.edu/assetserver/controller/view/search/CHS-33053