Gene C. Hancock using the 60-inch telescope at Mount Wilson Observatory. Hancock is seated in a wooden chair, and is operating the telescope with a hand device. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Hancock, Gene C Astronomers Scientists Telescopes Chairs Mount Wilson Observatory Interiors Astronomical observatories Mount Wilson (Calif.) Portrait photographs Portrait Photographs. (aat) Photographic prints. (gmgpc)
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