Construction of the 150-foot tower, Mount Wilson Observatory. An unidentified construction worker sits on top of one of the tower's legs. Near the base of the tower, construction materials are on the ground. The steel framing for the tower is underway. Behind the tower, a small open building is seen. Trees are in the surrounding area. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Construction--California Towers--Design and construction Steel framing (Building) Steel, Structural Construction workers--United States Construction equipment Hoisting machinery Scaffolding Tarpaulins Roofs Trees Cottages Mount Wilson Observatory Photographic prints. (gmgpc)
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