EASTERN AIR TRANSPORT SYSTEM Multicolor commercial aviation print. Route map superimposed on detailed drawing of airplane (Curtiss Condor B-20); blue and red ink on paperboard with paperboard stand attached to verso. Relief or Letterpress. Created by Digitized by Julie Weinstein Date Created 03/29/2021 Source Smithsonian National Air and Space Museum Keywords Art; Aviation; Commercial Rights and Restrictions Not determined
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