Hay Press., patent, September 30, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172486/m1/1/: accessed June 3, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Hay Press., patent, September 30, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172486/m1/1/: accessed June 3, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .