Ferdinand Hassler's observing tent. Probably the original sketch was by John Farley
Image ID: theb1565, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: New York area Photo Date: 1838? Credit: NOAA Central Library Category: Geodesy/Triangulation/Angles/ • 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