John F. Hayford observing from 60' reconnaissance pole.
On 98th Meridian Survey.
Checking for intervisibility between stations.
Helping plan for necessary height of tower at station
Image ID: theb2471, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1903
Credit: NOAA, John Hayford Album
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of the U.S. Department of Commerce, National Oceanic & Atmospheric
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April 30, 2013