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Description
Shelton 100-meter comparator -- Making contact.William Bowie on left (Image credit: NOAA, John Hayford Album)
Credit
NOAA, John Hayford Album
Display Date
1902?
Location
Midwest United States
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Baseline & Treverse Measurements
Keywords
Geodesy
Triangulation
Baseline
Bar