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Overhead view of a Coast and Geodetic Survey strong-motion accelerograph.
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Image ID: cgs02170, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1936 ca.
Credit: Collected Papers of Captain Nicholas Heck, NOAA Central Library
Category: Coast and Geodetic Survey/Geophysics Seismology/
• High Resolution Photo Available
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