Improvement In Percussion-Shells., patent, April 9, 1878; (https://texashistory.unt.edu/ark:/67531/metapth169721/m1/2/: accessed May 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Improvement In Percussion-Shells., patent, April 9, 1878; (https://texashistory.unt.edu/ark:/67531/metapth169721/m1/2/: accessed May 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .