A portion of the steel structure mount for the 50-foot interferometer, Mount Wilson. This frame is strapped to a pickup truck, which is parked near the building that will house the interferometer. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Interferometers Steel, Structural Steel framing (Building) Pedestals Pickup trucks Sheds Astronomical instruments Trees Mount Wilson Observatory Mount Wilson (Calif.) Photographic prints. (gmgpc)
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