Curve for Drawing an Ellipse, Keuffel & Esser Model 1825

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Description:

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.

Reference:

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.

Date Made: ca 1906

Maker: Keuffel & Esser Co.

Location: Currently not on view

Place Made: United States: New York, New York City

Subject: MathematicsDrawing Instruments

Subject:

See more items in: Medicine and Science: Mathematics, Curves, Science & Mathematics

Exhibition:

Exhibition Location:

Credit Line: Gift of Wesleyan University

Data Source: National Museum of American History

Id Number: 1985.0112.228Catalog Number: 1985.0112.228Accession Number: 1985.0112

Object Name: Curve

Physical Description: rubber (overall material)Measurements: overall: .1 cm x 15.3 cm x 11.5 cm; 1/32 in x 6 1/32 in x 4 17/32 in

Metadata Usage: CC0

Guid: http://n2t.net/ark:/65665/ng49ca746a5-23f7-704b-e053-15f76fa0b4fa

Record Id: nmah_694105

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