[Collection of Lord Sempill, comprising photographs, papers, correspondence etc., 1914-1966, illustrative of half a century spent in the cause of aeronautics at home and abroad. Includes material relating to lighter-than-air aircraft and to the work of his colleagues and friends Sir Roy Fedden and Sir Alliott Verdon-Roe, Charles Dollfuss, Hugo Eckener etc. 4 boxes. Listing available]
