Aerial view of bedrock base of canyon and first forms poured for Dam. Note on back: ""Keywest being put in place on bedrock. Lowest point of construction on the dam. - W. A. Davis.""

Skip load of men being lowered into canyon by scaffolding.

Welding/Blacksmith shop on Arizona side of Hoover Dam. Note on back: "Men sharpening steel tools; pieces 4 to 20 ft. long. Were mostly all star bits. No welding done here. Ingersollrand (Ingersoll-Rand?) equipment sharpening station. - W. A. Davis."

Overhead view of welding/blacksmith shop at end of diversion tunnel on downstream side. Pictured are sharpened drill bits made of tie bolts.

High scalers on canyon walls. "Hi-scalers going up. Skip hauling high scalers up to their work station - W. A. Davis."

Another view of high scalers "Hi-Scalers. I personally landed a boat load of dynamite at that sand beach one hot summer day in 1933." Note on back: "Miss Vegas and Stetson were bought by Six Companies. Then Miss Vegas hit a sand wave with a load of Steel and overturned and Sunk. Boat wasn't recovered until Coffer Dam was completed. Wint doubts that Ray ever ran a boat for Six Companies. - James J. Hester, son-in-law of W. A. 'Wint' Davis, 1992."

View of a few workers starting to create the pilot tunnel; work was completed before diversion tunnel. Note on back: "Starting the portal, 10 ft. bore, not more than 20 ft. deep in this photo - W. A. Davis, 1992."