Construction of the Hooker telescope building, Mount Wilson Observatory. The concrete exterior of the base is enclosed with steel framing. Wooden scaffolding can be seen on the exterior of the steel framing near the right-hand side. The dome is not yet in place, but the interior curved girders are visible. A portion of a pine tree is visible to the far left; shrubs are in the foreground. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Mount Wilson Observatory Observatory domes Observatories Astronomical observatories Construction--California Girders Scaffolding Foundations--Design and construction Trees Shrubs Photographic prints. (gmgpc)
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