pl23_map00203.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23map00203jpgDescription
Georges Bank Western Part Special Chart fo rthe Fishing Industry showingdetailed configuration of the bottom. Significantly, this was the first chartproduced by the Coast and Geodetic Survey showing an electronic aid tonavigation - in this instance, bearings to radio direction finding transmittingstations.
Collection
Voyage to Inner Space