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![Pair of piano wire sounding machines on the PATTERSON theb3794.jpg Pair of piano wire sounding machines on the PATTERSON](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb3794.jpg?itok=u5OqEvLp)
Description
Pair of piano wire sounding machines on the PATTERSON. (Image credit: C&GS; Season's Report Miller 1913-59)
Credit
C&GS; Season's Report Miller 1913-59
Display Date
1913
Location
Unimak Island area, Aleutian Islands, Alaska Photo
Collection
Historic Coast & Geodetic Survey
Nautical Charting
Bathymetry - Mapping the Features
Pre-1920
Keywords
Charting
Soundings
Bathymetry
Mechanical