Book or Music Leaf Turner., patent, October 22, 1907; (https://texashistory.unt.edu/ark:/67531/metapth509679/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Book or Music Leaf Turner., patent, October 22, 1907; (https://texashistory.unt.edu/ark:/67531/metapth509679/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .