pl23_theb2521.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb2521jpg-0Description
The first picture of a completed Bilby tower.Bilby towers were made of prefabricated steel parts that could be reused.These towers were designed by Jasper Bilby, chief signalman of the C&GS;
Credit
C&GS; Season's Report Bilby 1928
Display Date
1927
Location
Minnesota
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Bilby Steel Towers
Keywords
Geodesy
Triangulation
Towers
Bilby Steel