Steel framing for the construction of a computer room addition at the base of the 150-foot tower telescope, Mount Wilson Observatory. 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--California--Mount Wilson Construction equipment 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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