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https://www.noaa.gov/media/digital-library-photo/pl23cgs02436jpgDescription
High targets used as visual signals for offshore hydrographicsurvey operations on a low stretch of coastline. (Image credit: Courtesy of Family of Captain Ray Schoppe, USC&GS; (dec.))
Credit
Courtesy of Family of Captain Ray Schoppe, USC&GS; (dec.)
Display Date
1919
Location
Virginia
Collection
Historic Coast & Geodetic Survey
Keywords
Coast and Geodetic Survey