Instructions for Staedtler-Mars Model 944-24 Slide Rule
date: label: date made
content: 1960-1972
name: label: maker
content: Ricoh Measuring Instruments
notes: label: Description
content: This tan, 36-page booklet is titled: Staedtler-Mars Instructions for Use, Modles [<i>sic</i>] No. 944 24 No. 945 24 Bamboo Slide Rule. The back cover is marked: Printed in Japan.
label: Description
content: The instructions define the scales; explain how to multiply and divide; solve problems of proportion; discuss squares and square roots; calculate cubes, cube roots, 3/2 power, and 2/3 power; explain logarithms; provide processes for trigonometric functions; discuss the P or Pythagorean scale; explain the LL scales; and define this rule's five gauge marks. The German firm of Staedtler distributed the rule with which the booklet was received (2009.0019.02). Ricoh, the Japanese company that made the rule, presumably prepared the instructions.
label: Description
content: Reference: Paul Ross, "Relay/Ricoh Slide Rules," <i>Journal of the Oughtred Society</i> 9, no. 2 (2000): 64–65.
label: Location
content: Currently not on view
place: label: place made
content: Japan
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 Harley Flanders
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2009.0019.02.01
label: accession number
content: 2009.0019
label: catalog number
content: 2009.0019.02.01
objectType: label: Object Name
content: pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 18.3 cm x 12.8 cm x .3 cm; 7 7/32 in x 5 1/32 in x 1/8 in