Instructions for Otis King's Pocket Calculator
date: label: date made
content: ca 1965-1970
name: label: maker
content: Carbic Limited
notes: label: Description
content: This 16-page pamphlet was printed on light green paper by Carbic Limited, the London manufacturer of the cylindrical slide rule invented by Otis King. It is titled: The Otis King Calculator: Instructions for Use. This form of pamphlet is typically found with King Calculators manufactured later than those that sold with Carbic's eight-page pamphlet. (See 1987.0788.06.) Thus, it was printed no earlier than the late 1960s. This pamphlet did, though, appear before the pound sterling was decimalized in 1971.
label: Description
content: An introduction to the instrument has been added, and explanations have been expanded for multiplication and division, logarithms, and understanding the scales. The further examples are nearly identical to those in the earlier form of instructions. The explanations of how to use the logarithmic capabilities of Model L are the same except that the word "unity" has been replaced by the number 1. Discussions of compound roots and approximation have been added, and the explanation of finding the decimal point is expanded.
label: Description
content: Reference: Dick Lyon, "Otis King's Patent Calculator," http://www.svpal.org/~dickel/OK/OtisKing.html.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
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: Science & Mathematics
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content: Slide Rules
creditLine: label: Credit Line
content: Gift of John White
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0922.11
label: accession number
content: 1981.0922
label: catalog number
content: 1981.0922.11
objectType: label: Object Name
content: pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 20.5 cm x 12.8 cm; 8 1/16 in x 5 1/32 in