pl23_theb4313.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb4313jpg-0Description
George Hastings observing levels; Smitty Smith holding umbrella; and BillUnger (?) gun-toter. The umbrella was used to keep the sun off the level bubble on the leveling instrument as that would draw the instrument out of level andmake erroneous readings.
Photographer
Mr. Benton Hickok
Display Date
1934 November
Location
Alabama, Guntersville
Collection
Historic Coast & Geodetic Survey