Details for Safety Valves Easing Gears
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Details for Safety Valves Easing Gears, technical drawing, October 7, 1913; (https://texashistory.unt.edu/ark:/67531/metapth1141369/: accessed June 3, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting Texas Parks & Wildlife Department.