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NOAA Photo Library Image - theb1307

A Z-Variometer. Instrument measures relative changes in vertical component of Earth's magnetism

Image ID: theb1307, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1954
Credit: C&GS Season's Report Shelton 1954-15

Category: Geophysics/Geomagnetism/

• High Resolution Photo Available




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Last Updated: September 30, 2009