Construction of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. In this near brid's-eye view, much of the building's roof is visible. A small portion of the tower's base is seen next to the new building, at the far right. At the left, an unidentified construction worker stands between an exterior wall and the hillside. A ladder leans against the side of the new building, reaching the roof. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Buildings--California--Photographs Building construction--California--Mount Wilson Building sites--California--Mount Wilson--Photographs Buildings--California--Mount Wilson--Photographs Towers Roofs Walls Corrugated sheet metal Ladders Construction workers--United States Construction equipment Mount Wilson Observatory Photographic prints. (gmgpc)
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