Construction workers with 40-foot long wooden beams, loaded on a truck, for the construction of the 100-inch telescope dome, Mount Wilson Observatory. The five (5) construction workers are standing on and around the truck loaded with several wooden beams. Steel and iron rods are on the ground in the foreground; a partially constructed structure is on the right-hand side. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Construction workers--United States Construction projects Lumber Lumber--Transportation Trucks Bars (Engineering) Trees Mount Wilson Observatory Observatory domes Photographic prints. (gmgpc) Group portraits. (gmgpc) Portrait Photographs. (aat)
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