Construction of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. A truck is parked in front of the new building. A portion of the tower's base is seen to the right of the building. An unidentified construction worker stands on a ladder near the roof of the new building. Trees are seen on both sides of the building and tower. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Building construction--California--Mount Wilson Building sites--California--Mount Wilson--Photographs Buildings--California--Mount Wilson--Photographs Construction--California--Mount Wilson Construction equipment Construction workers--United States Trucks Towers Ladders Trees Photographic prints. (gmgpc)
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