120-foot hydrographic signal used on the Atlantic coast.
Image ID: cgs00627, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: United States Atlantic coast
Photo Date: 1916 ca.
Credit: NOAA Central Library Historical Imagery
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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November 10, 2017