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NOAA Photo Library Image - theb2236

The tools of the trade for navigating during launch hydrography. Metallic and plastic three-arm protractors for plotting three-point fixes. Sextant in background. 1931 Hydrographic Manual

Image ID: theb2236, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Credit: NOAA Central Library

Category: Charting/Navigation/Visual Signals/Sextant/

High Resolution Photo Available





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Last Updated:
May 12, 2014