THE “TOURISTEN-FERNSEHER,” A CANE-MOUNTING OPEN-AIR TELESCOPE
Stock Number: 9035
$495
Dimensions
3-1/2" x 5" (9 x 13 cm)
Circa
1900
Description
For Your Walking Stick or Cane, German, c. 1900, comprising two quite portable lenses set in tin mounts, contained in the original 3-1/2″ x 5″ (9 x 13 cm) card box with instructions. Each lens holder is designed to clamp onto one¹s walking-stick, thus forming an impressive Galilean telescope with a 2″ diameter objective and focal length of approximately 20″. It functions well, and is in good condition, the box rough. (Featured in “Wondrous Devices” exhibition, Hudson River Museum, 2018)
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Dealer information
TESSERACT
David and Yola Coffeen both have enjoyed academic careers, as planetary astronomer and as linguist/educator. But since 1982 (yes, 1982!) they have been full-time dealers in early scientific and medical instruments, under the name Tesseract. Selling primarily by catalogue (over 100 issued so far) they also have a web presence at www.etesseract.com, and can be contacted at [email protected].
