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pl23_cgs06326.jpg

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https://www.noaa.gov/media/digital-library-photo/pl23cgs06326jpg-0

Description

No. 27. Magnetic Declination (Variation of the Compass) Isogonic Linesfor the Year 1870. (U. S. Coast Survey Office 1865.) Annual Report 1865.

Credit

United States Coast Survey Annual Report 1865

Display Date

1865

Collection

Historic Coast & Geodetic Survey

Historic Maps

United States Coast Survey Annual Report

Keywords

Historical Cartography