Conversion Factors, Reference Table for Engineers and Other Executives
date: label: date made
content: ca 1950
notes: label: Description
content: This battered table, printed on heavy green paper, gives an alphabetical list of units of measure, conversion factors, and new units of measure. For example, for the unit of measure centimeters, the conversion factor is 0.3937. Multiplying a measurement in centimeters by the conversion factor gives a result in inches.
label: Description
content: The table was distributed by Precision Equipment Company of Chicago, Illinois. The back of the table advertises the company’s shelving and safety steps. A sentence at the bottom of the chart reads: Reproduced with the Permission of Foxboro Co. and Exporters’ Digest.
label: Description
content: The owner of the table inserted a row with the conversion factor of 1.151 for converting from nautical miles to statute miles.
label: Description
content: <I>Exporters’ Digest</I> was published from 1927 through 1958. Foxboro Company was in business from 1912 through 1990. A surviving piece of trade literature suggests that the Precision Equipment Company was in business in the 1950s. Hence the rough date of 1950 assigned to the object.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Mathematical Charts and Tables
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content: Science & Mathematics
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content: Measuring & Mapping
creditLine: label: Credit Line
content: Gift of John White
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0922.16
label: accession number
content: 1981.0922
label: catalog number
content: 1981.0922.16
objectType: label: Object Name
content: sheet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: .1 cm x 21 cm x 24.7 cm; 1/32 in x 8 9/32 in x 9 23/32 in