Keuffel & Esser Instructions for Log Log Duplex Slide Rule
date: label: date made
content: ca 1920
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: This eight-page pamphlet was received with 1981.0933.01. It is undated, but Clark McCoy reports the text was written around 1914. This copy was probably printed later, around 1920. It explains the scales on K&E's model 4092 slide rule, works eleven sample problems, and advertises K&E calculating devices.
label: Description
content: Reference: Clark McCoy, ed., "K&E Log Log Duplex Slide Rules," http://www.mccoys-kecatalogs.com/KEManuals/manuals.htm#4092.
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: Rule, Calculating
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Advertising
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content: Science & Mathematics
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content: Slide 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: 1981.0933.02
label: accession number
content: 1981.0933
label: catalog number
content: 1981.0933.02
objectType: label: Object Name
content: pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 22.3 cm x 14.6 cm x .1 cm; 8 25/32 in x 5 3/4 in x 1/32 in