Curve for Drawing an Ellipse, Keuffel & Esser Model 1825
date: label: date made
content: ca 1906
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: 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.
label: Description
content: 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.
label: Description
content: Reference:
label: Description
content: Keuffel & Esser Company, <i>Catalog</i>, 1906, p. 215. In the 1909 catalog, models of this number are listed as made from xylonite instead of hard rubber.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York City
topic: label: Subject
content: Mathematics
label: Subject
content: Drawing Instruments
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Curves
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Wesleyan University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1985.0112.228
label: catalog number
content: 1985.0112.228
label: accession number
content: 1985.0112
objectType: label: Object Name
content: Curve
physicalDescription: label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: .1 cm x 15.3 cm x 11.5 cm; 1/32 in x 6 1/32 in x 4 17/32 in