File:Joseph Csaky, Robert Delaunay, Henry Ottmann, The Sun (New York), 15 March 1914.jpg

Published 1914
[http://chroniclingamerica.loc.gov/lccn/sn83030272/1914-03-15/ed-1/seq-47/ The Sun. (New York, N.Y.), 15 March 1914]. Chronicling America: Historic American Newspapers. Lib. of Congress