Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds
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Yerkes Observatory Buildings, Instruments, Equipment, Grounds
40-inch Refractor Telescope 69:21 (2008-003)
VI: Yerkes Observatory
Modifications to parts of the Yerkes Observatory 40-inch refractor telescope.
Refracting telescopes | Astronomical instruments
Undated
Black-and-white negatives; 11.9 x 9.4 cm
Alvan Clark & Sons; Warner & Swasey Company
373 West Geneva Street | Williams Bay, Wisconsin
Y01
Archival Photographic Files
University of Chicago Library, Special Collections Research Center
apf6-01685

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