Shelf Calendar Clock

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This is an example of an Ithaca Calendar Clock model called “3 ½ Parlor” from the mid 1870s. Its walnut case has ebonized decorative elements. The black upper dial shows the time in white Roman numerals, with winding arbors at IIII and VIII for the brass eight-day time-and-strike spring-driven movement behind the dial. Lower clear glass has reverse-painted white Arabic numerals for date of the month. Metal calendar apparatus visible inside case, where rotating wheels show weekday and month.
The Ithaca Calendar Clock Co., established in Ithaca, N.Y., about 1865, made clocks based on the automatic perpetual calendar mechanism patented by Henry Bishop Horton in 1865 and 1866 (see patent 57,510).
Location
Currently not on view
National Museum of American History
Ithaca Calendar Clock Company
Credit Line
I.B.M. Corporation
Physical Description
wood (case material)
Measurements
overall: 20 in x 10 1/4 in x 5 3/8 in; 50.8 cm x 26.035 cm x 13.6525 cm
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Work and Industry: Mechanisms
Measuring & Mapping
ca 1875
ca 1875-1900
Object Name
clock
ID Number
ME.328555
catalog number
328555
accession number
272366