Upper- landing on Necker Island, Northwest Hawaiian Islands, during World Longitude Campaign, 1928. See theb0556. Lower - Signal built by C&GS on shoal used for visual navigation offshore survey of shoal areas. C&GS Ship HYDROGRAPHER (the first) to right of signal.

Image ID: cgs00623, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: United States Atlantic coast
Photo Date: 1935 ca.
Credit: NOAA Central Library Historical Imagery

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