Power shovel built by G.E. LeTourneau being unloaded from R.R. car before starting tunnel roads. Note on back: "Lowering bucket to put on new cables. According to Wint, LeTourneau never built a shovel. - James J. Hester, son-in-law of W. A. "Wint" Davis, 1992."
Circa March 6, 1931, cable on earth shovel broke. Note on back: ""Photo sent to Robling Steel Co. who used it in one of their magazine articles. - W. A. Davis, 1992.""
Air compressor made by Sullivan used on road; R.J. Le Tourneau built and owned the equipment. The modern version of this machine today is known as the jackhammer.
Model cement mixer to be used for Hoover Dam construction. Note on back: ""Inventor's model photographed by Wint in order to apply for a patent. Model of earth mover - self-loading. Object on left is a coupling being used as a counter balance - not part of the design. - James J. Hester, son-in-law of W. A. 'Wint' Davis, 1992.""
Road to McKeeversville camp by Colorado River. Note on back: ""McKeeversville was also called Hooverville or Ragtown. Early photo - at this time the only people on the river were the three boatmen. - W. A. Davis, 1992.""