Graphometer
name: label: maker
content: Pike, Jr., Benjamin
notes: label: Description
content: The inscriptions on this graphometer read "B. Pike Jr New York" and "Benjn Pike Jr 294. Broadway N.Y." The semicircle is graduated to 30 minutes, and read by silvered verniers at either end of the alidade to single minutes. Benjamin Pike Jr. (1809–1864), who was in business in New York during the period 1843–1864, probably imported this instrument from France. New, it cost $30. The vertical sights were reconstructed at the Museum.
label: Description
content: Ref: Benjamin Pike, Jr., <i>Illustrated Descriptive Catalogue of Optical, Mathematical, and Philosophical Instruments</i> (New York, 1856), pp. 64–65.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York City
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Surveying and Geodesy
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content: Measuring & Mapping
publisher: label: Related Publication
content: Pike, Jr., Benjamin. Illustrated Descriptive Catalogue of Optical, Mathematical, and Philosophical Instruments
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.318373
label: catalog number
content: 318373
label: accession number
content: 234201
objectType: label: Object Name
content: graphometer
physicalDescription: label: Measurements
content: overall: 12 in; 30.48 cm
label: Measurements
content: needle: 3 1/2 in; 8.89 cm
label: Measurements
content: overall; pike: 1 in x 7 3/8 in x 2 1/4 in; 2.54 cm x 18.7325 cm x 5.715 cm
label: Measurements
content: overall; graphometer: 4 7/16 in x 11 15/16 in x 6 in; 11.27125 cm x 30.32125 cm x 15.24 cm