Keuffel & Esser Co. Hard Rubber Irregular Curve or French Curve
date: label: date made
content: ca
label: date made
content: ca 1900
name: label: Associated Name
content: Keuffel & Esser Co.
label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: 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 <I>Catalogue</I>. However, it has an additional notch on the upper left side.
label: Description
content: The curve came to the Smithsonian from the Department of Mathematics of Brown University.
label: Description
content: Reference:
label: Description
content: Keuffel & Esser Company, <I>Catalogue</I>, 1890, p. 140, 1909, p. 206-207. Hard rubber irregular curves are not listed in the 1921 or 1936 catalogs.
label: Location
content: Currently not on view
place: label: place made
content: United States: New Jersey, Hoboken
label: Associated Place
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
label: See more items in
content: Curves
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.11
label: accession number
content: 1973304722
label: catalog number
content: 304722.11
objectType: label: Object Name
content: Curve
physicalDescription: label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: .1 cm x 20.4 cm x 9.5 cm; 1/32 in x 8 1/32 in x 3 3/4 in