First Edition. Clean red ribbed cloth boards with stamped black lettering, hot air balloon image on cover, crisp black lettering and small airplane on spine. No fraying or wear. Binding is tight and square, hinges are sound - no cracking. Pages and edges are clean, with small previous owner name and date (1929) neatly penned on front free endpaper. Illustrated with photographs and drawings. 337 pages with index.