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pl23_theb2455.jpg

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb2455jpg

Description

Diagram of wiredrag operations ca. 1980.Basically the same system as devised in the early Twentieth Century

Credit

NOAA Office of Coast Survey

Collection

Historic Coast & Geodetic Survey

Nautical Charting

Soundings

Wiredrag

Keywords

Charting

Soundings

Wiredrag