Concept drawing for National Air and Space Museum Building, by Harbeson, Hough, Livingston & Larson, Architects, 1962, Smithsonian Archives - History Div, Concept drawing of the cross section through wing submitted by Harbeson, Hough, Livingston and Larson, Architects, for the proposed new National Air Museum (now known as the National Air and Space Museum) building. Interior of the cross section shows airplanes displayed on different levels and outside the building on the right is a rocket. They were not selected..