"2934 Looking upstream in No. 1 plug, showing the gunited portions of the arch and raise into the Nevada Spillway. November 17th, 1934.
2935 Looking upstream into No. 3 plug and raise, showing plug concrete in place, cooling headers above and rail extension for moving steel pipe. November 17th, 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.