Construction of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. A ladder and other construction materials are seen near the new structure. Much of the stone or brick foundation is visible, as are two exterior walls. A small portion of the tower's base is seen at the far left. Trees are in the background. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Construction--California--Mount Wilson--Photographs Building construction--California--Mount Wilson Building sites--California--Mount Wilson--Photographs Buildings--California--Mount Wilson--Photographs Foundations--Design and Construction Walls Roofs Ladders Construction equipment Trees Photographic prints. (gmgpc)
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