PERPETUAL CALENDAR MADE FOR THE COLUMBIAN EXHIBITION
Stock Number: 9052
For sale is a patented aluminum perpetual calendar, patented by William Whitney Kitchen of Illinois, and sold at the 1893 World's Columbia Exposition in Chicago.
1-3/16 (3 cm)
Country of manufacture
PERPETUAL CALENDAR MADE FOR THE COLUMBIAN EXHIBITION, American, 1892, signed “Perpetual Calendar, Patd. 1891 & 1892 by W.W. Kitchen.” Made of aluminum, 1-3/16″ (3 cm) in diameter, the disk bears on one side a raised profile of Christopher Columbus, and on the other a calendar marking every seventh day of each month. At the center is inset a brass volvelle with the days of the week. Setting this volvelle once per year allows direct readout of the day of the week for every date. This is a fine example of the perpetual calendar patented by William Whitney Kitchen, of Rockford, Illinois, on 1 December 1891. It was available at the 1893 World¹s Columbian Exposition held in Chicago to celebrate the quatercentenary of Columbus’ 1492 voyage to the New World.
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 protected]