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pl23_theb1151.jpg

Twelve inch repeating circle (bottom) and heliotrope (top)

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb1151jpg-0

Description

Twelve inch repeating circle (bottom) and heliotrope (top).Fig. No. 27, Report of Superintendent ... 1866

Credit

NOAA Central Library

Display Date

1866

Collection

Historic Coast & Geodetic Survey

Keywords

Geodesy

Instruments