Digital collections
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https://www.noaa.gov/media/digital-library-photo/pl23theb3784jpgDescription
Sigsbee Sounding Machine in use on the ALBATROSS. (Image credit: NOAA Central Library )
Credit
NOAA Central Library
Display Date
1890?
Category
Historic Coast & Geodetic Survey
Nautical Charting
Bathymetry - Mapping the Features
Pre-1920
Keywords
Charting
Soundings
Bathymetry
Mechanical