Keuffel & Esser 1419P Chain Scale
date: label: date made
content: 1913–1921
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: This 6" boxwood pocket ruler has a white celluloid coating along both long edges on both sides. On one side, the top edge is divided to 1/10" and numbered by ones in both directions from 0 to 6. The bottom edge is divided to 1/40" and numbered by twos in both directions from 0 to 24. The middle of this side is marked: KEUFFEL & ESSER (/) N.Y.; PARAGON (/) 1419P; TRADE MARK (below the K&E eagle logo). It is also marked: LARSEN.
label: Description
content: The other side is divided along the top edge to 1/50" and numbered by twos in both directions from 0 to 30. The bottom edge is divided to 1/30" and numbered by twos in both directions from 0 to 18. The middle of this side is marked: LARSEN. An orange leather sheath is marked: K & E CO. The back of the sheath is marked: P. M. L.
label: Description
content: Keuffel & Esser of New York City sold model 1419P with a celluloid coating from 1913, for $1.35, to at least 1954, for $4.20. The markings on this example suggest it was made between 1913 and 1921.
label: Description
content: William J. Ellenberger (1908–2008) donated this object, which he presumably acquired secondhand from P. M. Larsen. Ellenberger studied electrical and mechanical engineering at The George Washington University between 1925 and 1934. He then worked for the Potomac Electric Power Company and the National Bureau of Standards. During World War II, he served in the U.S. Army Signal Corps. He was a civilian construction management engineer for the army from 1954 to 1968, when he became a private consultant.
label: Description
content: References: <i>Catalogue of Keuffel & Esser Co.</i>, 33rd ed. (New York, 1909), 184; <i>Catalogue of Keuffel & Esser Co.</i>, 34th ed. (New York, 1913), 177; <i>Catalogue of Keuffel & Esser Co.</i>, 36th ed. (New York, 1921), 124; <i>Catalogue of Keuffel & Esser Co.</i>, 38th ed. (New York, 1936), 213; <i>Catalogue of Keuffel & Esser Co.</i>, 42nd ed. (New York, 1954), 182; "The GW Engineering Hall of Fame 2006 Inductees," http://www.weas.gwu.edu/ifaf/hall_of_fame_inductees_2006.php.
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: Drafting, Engineering
label: Subject
content: Rule, Measuring
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Science & Mathematics
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content: Scale Rules
creditLine: label: Credit Line
content: Gift of William J. Ellenberger
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0933.14
label: accession number
content: 1981.0933
label: catalog number
content: 1981.0933.14
objectType: label: Object Name
content: scale rule
label: Object Name
content: scale
physicalDescription: label: Physical Description
content: boxwood (overall material)
label: Physical Description
content: celluloid (overall material)
label: Physical Description
content: leather (overall material)
label: Measurements
content: overall: .2 cm x 18 cm x 2.5 cm; 3/32 in x 7 3/32 in x 31/32 in