The Great Telescope of the University of Chicago

Original Vintage Card
  
Sale Price: $9.95
Original Price: $15.95

Stock #:530711
Type: Postcard
Era: Divided Back
City: Williams Bay
State: Wisconsin (WI)
County: Walworth
Publisher: E.C. Kropp Co.
Size: 3.5" x 5.5" (9 x 14 cm)
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Additional Details:
Yerkes Observatory. The object-glass has a diameter of 40 inches. The tube is 63 feet long and weighs 6 tons. The revolving dome is 90 feet in diameter. The floor may be elevated through 23 feet up to the balcony.

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