Surveyor's Transit

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Description:

This transit is marked "F. E. BRANDIS, SONS & CO. NEW YORK 1569." The firm, which was in business as such during the period 1890-1916, described it as an Engineers' Transit with Level Attachment, Gradienter, and Vertical Arc. The horizontal circle is graduated to 20 minutes of arc, and read by opposite verniers to 30 seconds. The vertical arc is graduated to 20 minutes of arc, and read by vernier to single minutes. New, it cost $239.

Ref: F. E. Brandis, Sons & Co., Illustrated and Descriptive Catalogue and Hand-Book of Instruments of Precision for Civil Engineers, Surveyors and Astronomers (New York, 1902), p. 163.

Date Made: ca 1890-1916

Maker: F.E. Brandis, Sons and Company

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: F. E. Brandis, Sons & Co.. Illustrated and Descriptive Catalogue and Hand-Book of Instruments of Precision for Civil Engineers, Surveyors and Astronomers, Smart, Charles E.. Makers of Surveying Instruments in America Since 1700

Credit Line: Conrad S. Ham

Data Source: National Museum of American History

Id Number: 1983.0548.08Accession Number: 1983.0548Catalog Number: 1983.0548.08

Object Name: surveyor's transit

Measurements: overall: 16 in; 40.64 cmhorizontal circle: 6 3/8 in; 16.1925 cmneedle: 4 3/8 in; 11.1125 cmtelescope: 9 7/8 in; 25.0825 cmhanging level: 5 7/8 in; 14.9225 cmoverall: 15 in x 12 1/2 in x 9 1/2 in; 38.1 cm x 31.75 cm x 24.13 cm

Metadata Usage: CC0

Guid: http://n2t.net/ark:/65665/ng49ca746a5-6aea-704b-e053-15f76fa0b4fa

Record Id: nmah_745876

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