Egyptian tomb painting from 1450 B.C. showing officer with sounding pole.
Officer is telling crew to come ahead slow.
Engineers with cat-o'-nine-tails assuring proper response from engines
Image ID: theb2121, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1450 B.C.
Credit: NOAA Central Library
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of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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June 10, 2016