Technical drawing, showing assembly of the coude and cassegrain convex mirror mountings and cages of the Hooker telescope, for Mount Wilson Observatory. The title box in the lower right-hand corner of teh drawing reads: "100 in. Reflecting Telescope, Assembly of Mirror Cages, Coude and Cassegrain, Mount Wilson Solar Observatory". It is dated january 23, 1917. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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