Graphometer

Description:

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.

Ref: Benjamin Pike, Jr., Illustrated Descriptive Catalogue of Optical, Mathematical, and Philosophical Instruments (New York, 1856), pp. 64–65.

Maker: Pike, Jr., Benjamin

Location: Currently not on view

Place Made: United States: New York, New York City

See more items in: Medicine and Science: Physical Sciences, Surveying and Geodesy, Measuring & Mapping

Exhibition:

Exhibition Location:

Related Publication: Pike, Jr., Benjamin. Illustrated Descriptive Catalogue of Optical, Mathematical, and Philosophical Instruments

Data Source: National Museum of American History

Id Number: PH.318373Catalog Number: 318373Accession Number: 234201

Object Name: graphometer

Measurements: overall: 12 in; 30.48 cmneedle: 3 1/2 in; 8.89 cmoverall; pike: 1 in x 7 3/8 in x 2 1/4 in; 2.54 cm x 18.7325 cm x 5.715 cmoverall; graphometer: 4 7/16 in x 11 15/16 in x 6 in; 11.27125 cm x 30.32125 cm x 15.24 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a5-aebb-704b-e053-15f76fa0b4fa

Record Id: nmah_748133

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