The black and white view of the Lockheed 14 aircraft preparing for a part of Howard Hughes' Around the World flight. Description printed on photograph's accompanying sheet of paper: "Howard Hughes world flight plane in S. Paul, Minn., for 33-minute stop before last leg of flight back to New York."
From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The slide reads: "Comparison of the cumulative estimated dose with diagnostic x-rays 1951 to 1958.