pl23_theb3357.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb3357jpg-0Description
Plane table survey in the water.Look out for the crocs!!!!
Credit
Family of Captain Jack Sammons, C&GS;
Display Date
1925
Location
Philippines
Collection
Historic Coast & Geodetic Survey
Keywords
Philippines
Geodesy
Topography