"2918 Upper portal trashrack for Diversion Tunnel No. 1, on the Nevada side. October 30th, 1934.
2916 Looking upstream in No. 2 Diversion Tunnel, showing the concrete pipe line from the pumpcrete gun to the
upstream plug. October 30th, 1934.
2893 Looking downstream into No. 4 Raise, showing close-up of portal forms. October 25th, 1934.
2900 Looking downstream into the Nevada Spillway. October 25th, 1934."