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NOAA Photo Library Image - cgs00547

Bilby 116-foot portable steel tower used in triangulation. These towers are built by 5 men in approximately 6 hours. Preparations are being made for dismantling this tower in this image.

Image ID: cgs00547, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1933 ca.
Credit: NOAA Central Library Historical Imagery

High Resolution Photo Available





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Last Updated:
April 30, 2013