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Pre 1920
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Coast Geodetic Survey
Nautical Charting
Bathymetry Mapping the Features
Pre 1920
A hand sounding machine.On the EXPLORER
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A hand sounding machine.On the EXPLORER
4/3/2019 10:36:28 AM
Date:
1927
Credit:
C&GS; Season's Report Cotton 1927-21
Location:
North Pacific Ocean Photo
Subject:
Charting
Subject:
Soundings
Subject:
Bathymetry
Subject:
Mechanical
Subject:
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.jpg
(541.54 KB)
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