pl23_theb1161.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb1161jpgDescription
20 centimeter theodolite.Plate II, Fig. No. 8, Appendix No. 8, Report of Superintendent ... 1894, p. 276
Credit
NOAA Central Library
Display Date
1894
Collection
Historic Coast & Geodetic Survey
Keywords
Geodesy
Triangulation
Instruments