Page 11 of brochure entitled "Pan Am Clipper Class". Accompanying text reads in part: "The added benefits of Clipper Class. In-flight services on all Clipper Class flights include complimentary headsets to use for a selection of relaxing stereo music…
Image from page 10 of "Thirteenth Annual Report for Pan American Airways Corporation". Accompanying text reads in part, "During the year 1940, in cooperation with the Colombian Government, the reorganization of the domestic airway system of that…