"2993 Form work on the Nevada Valve House bench. January 2nd, 1935.
2971 Telephoto view of Nevada Powerhouse units. December 19th, 1934.
2995 Arizona Valve House from the center of the low catwalk. January 2nd, 1935
2973 Telephoto view of Arizona Powerhouse units. December 19th, 1934."
black and white photographs 4 x 5.3 in. or 8 x 4.8 in. paper background 10 x 13.5 in.
Archived TIFF images were scanned by Kathleen Broeder at 400 dpi with an Epson Expression 10000XL scanner. Digital images were reformatted in Photoshop. JPG and PDF files were then created for general use.