Keuffel & Esser Co. Hard Rubber Irregular Curve or French Curve

Description:

This black hard rubber curve has one opening and numerous scallops on the edges. A mark near the bottom reads: KEUFFEL & ESSER (/) N.Y. This curve is similar to number 19 in catalog entry 1820 in the K & E Catalogue. However, it has an additional notch on the upper left side.

The curve came to the Smithsonian from the Department of Mathematics of Brown University.

Reference:

Keuffel & Esser Company, Catalogue, 1890, p. 140, 1909, p. 206-207. Hard rubber irregular curves are not listed in the 1921 or 1936 catalogs.

Date Made: caca 1900

Associated Name: Keuffel & Esser Co.Maker: Keuffel & Esser Co.

Location: Currently not on view

Place Made: United States: New Jersey, HobokenAssociated Place: 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 Brown University Department of Mathematics

Data Source: National Museum of American History

Id Number: MA.304722.11Accession Number: 1973304722Catalog Number: 304722.11

Object Name: Curve

Physical Description: rubber (overall material)Measurements: overall: .1 cm x 20.4 cm x 9.5 cm; 1/32 in x 8 1/32 in x 3 3/4 in

Guid: http://n2t.net/ark:/65665/ng49ca746a7-4758-704b-e053-15f76fa0b4fa

Record Id: nmah_904418

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.