[Postcard of Flatiron Building in Ft. Worth], postcard, April 22, 1911; (https://texashistory.unt.edu/ark:/67531/metapth563017/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Postcard of Flatiron Building in Ft. Worth], postcard, April 22, 1911; (https://texashistory.unt.edu/ark:/67531/metapth563017/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .