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![Hand-scaling of magnetograms cgs02213.jpg Hand-scaling of magnetograms](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02213.jpg?itok=MtSgWPZE)
Description
Hand-scaling of magnetograms.
Display Date
1957 ca.
Collection
Historic Coast & Geodetic Survey
Keywords
Coast and Geodetic Survey
Geophysics Geomagnetism
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