Telescopic Alidade

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Description:

This alidade belonged to the University of Pittsburgh. There is a level mounted below the telescope. The vertical circle is graduated on the rim to 30 minutes and read by vernier to single minutes. The base is skeletal. The “7049 EUGENE DIETZGEN CO. CHICAGO-NEW YORK” signature refers to a firm that was established in Chicago in 1893. With the alidade there is a compass (serial number 6870), a wooden plumbing arm, and clamps for holding the paper.

Ref: Eugene Dietzgen Co., Catalogue & Price List (Chicago, 1921), pp. 318–319.

Maker: Eugene Dietzgen Company

Location: Currently not on view

Place Made: United States: Illinois, Chicago

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

Exhibition:

Exhibition Location:

Related Publication: Eugene Dietzgen Co.. Catalogue & Price List

Credit Line: University of Pittsburgh

Data Source: National Museum of American History

Id Number: PH.334894Catalog Number: 334894Accession Number: 315134

Object Name: alidade (telescopic)telescopic alidade

Measurements: base: 20 3/4 in; 52.705 cmtelescope: 11 in; 27.94 cmoverall; case: 6 in x 22 1/8 in x 11 5/8 in; 15.24 cm x 56.1975 cm x 29.5275 cm

Metadata Usage: CC0

Guid: http://n2t.net/ark:/65665/ng49ca746a5-c138-704b-e053-15f76fa0b4fa

Record Id: nmah_764360

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