The Sigsbee Sounding Machine on a surveying vessel. In: Putnam, G.R. 1908. Nautical Charts. J. Wiley and Sons, New York.
Image ID: theb4083, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection • High Resolution Photo Available
Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA), NOAA Central Library NOAA Privacy Policy | NOAA Disclaimer Last Updated: April 30, 2013