Photograph of valves and pipes inside of a T&P train engine. Written below the image are "Dallas, Texas Mar 3rd 1976" and "D. Watson."
[Valves and Pipes Inside a T&P Train],
March 3, 1976;
accessed March 5, 2020),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting The Grace Museum.