Construction and framing of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. Two unidentified construction workers, seen in the lower right-hand corner of the photograph, work near the framed building. A portion of the tower's base is seen at the far right. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Framing (Building) Steel framing (Building) Construction workers--United States Towers Buildings--California--Photographs Building construction--California--Mount Wilson Building sites--California--Mount Wilson--Photographs Buildings--California--Mount Wilson--Photographs Photographic prints. (gmgpc)
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