Metallic Shingle., patent, March 27, 1888; (https://texashistory.unt.edu/ark:/67531/metapth171730/m1/1/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Metallic Shingle., patent, March 27, 1888; (https://texashistory.unt.edu/ark:/67531/metapth171730/m1/1/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .