PERPETUAL CALENDAR MADE FOR THE COLUMBIAN EXHIBITION

PERPETUAL CALENDAR MADE FOR THE COLUMBIAN EXHIBITION

Stock Number: 9052

$450

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.

Dimensions

1-3/16 (3 cm)

Circa

1892

Country of manufacture

North America

Categories: Calendars, Timekeeping

Description

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.

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US 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].

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