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![6 and 1/2 inch Fennel theodolite theb1590.jpg 6 and 1/2 inch Fennel theodolite](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1590.jpg?itok=Z0TMSrm2)
Description
6 and 1/2 inch Fennel theodolite.Triangulation party of E. O. Heaton (Image credit: C&GS; Season's Report Heaton 1925)
Credit
C&GS; Season's Report Heaton 1925
Display Date
1925
Location
Rochester, New York
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles