THE PANOROGRAPHE OF ENGINEER VALLE
Stock Number: 8169
For sale, antique time conversion device made in Italy for the French market. Knowing the time in one city allows you to find the time in cities throughout the world. Made of heavy printed card.
3-3/8 x 4-1/2 inches (8.6 -11.5 cm)F
c. last quarter 19th century
Country of manufacture
THE PANOROGRAPHE OF ENGINEER VALLE, Italian for the French market, last quarter 19th century, consisting of a heavy printed card 3-3/8″ x 4-1/2″ (8.6 x 11.5 cm) opening to a mounted volvelle. A circumferential time scale (of twice-12 hours divided every five minutes) is read against any one of dozens of cities marked on the rotating volvelle to give “l’heure de tous les Pays.” Knowing the time in one city one finds the time in cities throughout the world. A longitude scale allows one to add additional locations of interest. An unusual device, in fine condition, by Engineer Gaudenzio Valle of Novara, Italy.
Ask the Dealer
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@example.com.