Watkin's "Lazy Plate" barbed wire, William Watkins, November 21, 1876, physical object, November 21, 1876; (https://texashistory.unt.edu/ark:/67531/metapth72/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .