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NOAA Photo Library Image - cgs06228

Annual Report 1862. No. 47 Chart of Iso-Magnetic Lines of Pennsylvania for 1842. Declination 1842. Declination 1862. Inclination. Magnetic Stations. Horizontal Force. Total Force.

Image ID: cgs06228, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1862
Credit: United States Coast Survey Annual Report 1862

High Resolution Photo Available





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