[Seybold Machine], photograph, 19XX; (https://texashistory.unt.edu/ark:/67531/metadc2112980/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Seybold Machine], photograph, 19XX; (https://texashistory.unt.edu/ark:/67531/metadc2112980/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .