Digital Library Search
![Ferdinand Hassler's observing tent theb1565.jpg Ferdinand Hassler's observing tent](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1565.jpg?itok=GqxGzU-r)
Description
Ferdinand Hassler's observing tent.Probably the original sketch was by John Farley (Image credit: NOAA Central Library)
Credit
NOAA Central Library
Display Date
1838?
Location
New York area
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles