'The Full Moon, Yerkes Observatory', c1930s. Yerkes Observatory in Wisconsin was founded in 1897 by astronomer George Ellery Hale and financed by businessman Charles T Yerkes it housed the largest ever refracting telescope successfully used for astronomy. From "Tour of the World". [Keystone View Company, Meadville, Pa., New York, Chicago, London]
World North and Central America United States Wisconsin
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