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NOAA Photo Library Image - geod1088

Model 8 Geodimeter measuring distances from a rooftop in Chicago. Note the red dot to right of instrument. This is the laser-light return signal reflecting from a glass prism atop another building.

Image ID: geod1088, NOAA's Geodesy Collection
Location: Illinois, Chicago


High Resolution Photo Available





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Last Updated:
April 30, 2013