Four press photographs, to include a photo of a large group of factory men posing on and around a large piece of machinery, stamped on back Please credit United Press International Photo . . . New York, inscribed on back Machine Shop 1920, 8" x 10"; one of two men standing in a partially completed aqueduct system, paper on back reads Lifeblood of Southern ??? As if it were a spider web capturing the morning dew, appearing as mighty steel frames - Work on the Freda Siphon of the Metropolitan Water District Aqueducts. Soon the steel ribs will be covered and water will be rushing through it. 4/1/36, stamped on back California Metropolitan Water System. Apr 19 1936, 7" x 9"; one of a steel framed factory interior, with workers and equipment silhouetted in the foreground, stamped on back Sparrows Point. Nov 11 1939, 9" x 12"; and one of five men standing on a steel frame, paper on the back explains the scene as iron workers from Sun Erections waiting for an eighty ton steel girder to be put in place at the New Museum Tower, stamped Herald Staff Photo by Murry Still. Aug 3 1985, 7 3/4" x 14".