Emilio Segrè Visual Archives

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Yerkes Observatory F2

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Yerkes Observatory F2

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$20.00
Image title: 
Alvan G. Clark and Carl A. R. Lundin sit alongside the heavy cell which contains the 2-element Yerkes observatory 40-inch lenses
Credit line: 
Yerkes Observatory, University of Chicago, courtesy of AIP Emilio Segrè Visual Archives, Yerkes Observatory Collection
Description: 

L-R: Alvan G. Clark and Carl A. R. Lundin sit alongside the heavy cell which contains the 2-element Yerkes observatory 40-inch lenses, shortly before the objectived was installed in the telescope tube.

Photo date: 
May 21, 1897
Original format: 
3 photographic prints (black and white; 8 x 10 inches, 9.5 x 7.5 inches and 6 x 4.5 inches)
Person(s): 
Yerkes Observatory
Clark, Alvan Graham