PAN-AMERICAN AERONAUTIC CONVENTIONS From 1917 to 1920 (skipping the war year of 1918) the Aero Club of America hosted an annual convention and exhibition at Atlantic City New Jersey. The purpose of the exhibitions was to promote manufacturers flight schools etc. and the future of aviation in general. Aviation in general was booming in these early years and manufacturing was exploding. The Aero Club shows offered a wide range of activities including flights on kites balloons and airplanes for the public air races flights of prototypes and so on. Included in this large groupings are diagrams rules and contracts for all three expositions programs contracts (about four completed) professional contest entry forms invitations advertising copy etc. with about 50 letters and telegrams to and from the organisers content mainly concerning those attending and a possible exposition in Havana. Overall very good.