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NOAA Photo Library Image - geod1084

Observing with Wild T-3 theodolite. Note centering plate secured to inner tower with C-clamps. This plate is directly above the survey mark on the ground below as determined by the collimator in image 1076. Ron Ramsey observer.

Image ID: geod1084, NOAA's Geodesy Collection
Location: Illinois, Chicago


High Resolution Photo Available





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Last Updated:
May 12, 2014