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(Left to right): Arthur King, Edwin Hubble, Walther Mayer, Albert Einstein, and Walter Adams on the exterior catwalk of the 100-inch telescope dome, Mount Wilson Observatory. All of the men are wearing suits. Trees are seen in the background. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
King, Arthur Scott, 1876-1957 Hubble, Edwin Powell, 1889-1953 Mayer, W. (Walther), b. 1887 Einstein, Albert, 1879-1955 Adams, Walter S. (Walter Sydney), 1876-1956 Astronomers Physicists Scientists Balconies Mount Wilson Observatory Astronomical observatories Suits (Clothing) Trees Group portraits. (gmgpc) Portrait Photographs. (aat) Photographic prints. (gmgpc)