pl23_cgs01995.jpg
![Starting a drill hole with hammer and chisel for placing a survey mark cgs01995.jpg Starting a drill hole with hammer and chisel for placing a survey mark](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs01995.jpg)
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https://www.noaa.gov/media/digital-library-photo/pl23cgs01995jpgDescription
Starting a drill hole with hammer and chisel for placing a survey mark.
Collection
Historic Coast & Geodetic Survey