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Postcard

Underwood Observatory, Lawrence College

Date: 
Description: Underwood Observatory on the Lawrence College campus. Caption reads: "Underwood Observatory, Appleton, Wis."
Postcard

Yerkes Observatory

Date: 1905
Description: View across field towards the observatory. Caption reads: "Yerkes Observatory, Lake Geneva, Wis."
Postcard

Entrance of Yerkes Observatory

Date: 1935
Description: The entrance to Yerkes Observatory. Caption reads: "Entrance, Yerkes Observatory, University of Chicago, at Williams Bay, Wis."
Postcard

Yerkes Observatory of the University of Chicago

Date: 1907
Description: Text on front reads: "Yerkes Observatory of the University of Chicago at Williams Bay, Wisconsin." Founded in 1892 by astronomer George Ellery Hale and fin...
Postcard

Yerkes Observatory Telescope

Date: 1907
Description: Text on front reads: "The 40-inch telescope of the University of Chicago Yerkes Observatory, Williams Bay, Wisconsin. The object-glass has a diameter of 40...

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