Construction of walls for large water reservoir, Mount Wilson. Three unidentified construction workers work near the perimeter of the reservoir, pouring concrete from a wheelbarrow into the wood and wire forms. The formwork for the reservoir walls are seen in teh circular shape of the reservoir. 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.
Concrete construction Concrete construction--Formwork Concrete Construction workers--United States Wheelbarrows Lumber Wire Reservoirs Walls Trees Photographic prints. (gmgpc)
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