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Curve for Drawing an Ellipse, Keuffel & Esser Model 1825

Curve for Drawing an Ellipse, Keuffel & Esser Model 1825

Usage conditions apply
This flat black rubber ellipse has two holes along the major axis. The major axis is drawn in pencil. A mark on the curve reads: KEUFFEL & ESSER Co (/) NEW YORK (/) AND (/) CHICAGO.
According to the K&E Catalog, these models were sold in sets of ten, with major axes ranging in size from 1 1/2" to 6". This would be the 6" size.
Keuffel & Esser Company, Catalog, 1906, p. 215. In the 1909 catalog, models of this number are listed as made from xylonite instead of hard rubber.
Currently not on view
Object Name
date made
ca 1906
Keuffel & Esser Co.
place made
United States: New York, New York City
Physical Description
rubber (overall material)
overall:.1 cm x 15.3 cm x 11.5 cm; 1/32 in x 6 1/32 in x 4 17/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Wesleyan University
Drawing Instruments
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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