Instruction Manual for Keuffel & Esser Polyphase Duplex Pocket Slide Rule
date: label: date made
content: 1960s
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: This 70-page booklet was received with 1993.0357.01. The book explains how to operate model 68–1555, which was model 4168 before 1962. Its citation information is: <i>Keuffel & Esser Polyphase Duplex Pocket Slide Rule . . . Instruction Manual</i>, 2nd ed. (New York: Keuffel & Esser Co., 1947). Presumably only the cover and illustration of the slide rule were updated in the 1960s. Topics covered include: multiplication and division, proportion, squares and square roots and cubes and cube roots, and plane trigonometry. Answers are provided at the back.
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
label: See more items in
content: Science & Mathematics
label: See more items in
content: Slide Rules
creditLine: label: Credit Line
content: Gift of Alfred E. Brown
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1993.0357.01.01
label: accession number
content: 1993.0357
label: catalog number
content: 1993.0357.01.01
objectType: label: Object Name
content: pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 19.8 cm x 13.4 cm; 7 25/32 in x 5 9/32 in