Specification of Letters Patent.
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Specification of Letters Patent., patent, June 21, 1921; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257887/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.