Albert Einstein and Charles St. John at the focus of the 150-foot tower telescope, Mount Wilson Observatory. Einstein is leaning over the eyepiece of the telescope, St. John is standing to his left. What appears to be an electrical switchboard is seen at the far left. Both men are wearing suits. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Einstein, Albert, 1879-1955 St. John, Charles E. (Charles Edward), 1857-1935 Astronomers Physicists Scientists Telescopes Electric switchgear Mount Wilson Observatory Astronomical instruments Suits (Clothing) Group portraits Portrait photographs Group portraits. (gmgpc) Portrait Photographs. (aat) Photographic prints. (gmgpc)
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