CARTOGRAPHIC POCKET COMPASS, Swiss, c. early 20th century, the 2-1/4″ (5.7 cm) diameter plated brass case nicely glazed, and fitted with printed paper under its own protective glass disk, with a raised counterbalanced blued needle. The paper shows the pivot centered on a map of Switzerland, with cities, surrounding countries, and directionals all labeled in French, and with the map scale specified “Echelle 1:8,000,000.” The center is in the region of the highest mountains of the Swiss Alps, and from there the compass serves as the tourist’s panoramic guide to distant landmarks. Most unusual, and in excellent condition.
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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].