A portion of the steel framed mount for the 50-foot interferometer, Mount Wilson. This frame structure is on a pickup truck, parked on Mount Wilson. Trees are visible in the background. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Interferometers Optical instruments Steel, Structural Steel framing (Building) Pedestals Pickup trucks Trees Mount Wilson Observatory Mount Wilson (Calif.) Photographic prints. (gmgpc)
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