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https://www.noaa.gov/media/digital-library-photo/pl23theb1158jpg-0Description
30 centimeter theodolite.Plate I, Fig. No. 7, Appendix No. 8, Report of Superintendent ... 1894, p. 276 (Image credit: NOAA Central Library)
Credit
NOAA Central Library
Display Date
1894
Collection
Historic Coast & Geodetic Survey
Keywords
Geodesy
Triangulation
Instruments