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pl23_theb1157.jpg

Duplex bars of Eimbeck base measuring instrument in contact

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb1157jpg

Description

Duplex bars of Eimbeck base measuring instrument in contact.Figure No. 4, Appendix No. 11.Part II, Report of the Superintendent ... 1897, p. 483.

Credit

NOAA Central Library

Display Date

1897

Collection

Historic Coast & Geodetic Survey

Keywords

Geodesy

Base Line

Instruments