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https://www.noaa.gov/media/digital-library-photo/pl23cgs01677jpgDescription
J. R. Crichton observing with side-mounted level instrument from railroadvelocipede. (Image credit: Mary Wood, Daughter of Harry Siple | Harry Siple)
Credit
Mary Wood, Daughter of Harry Siple
Photographer
Harry Siple
Location
California, Southern
Collection
Historic Coast & Geodetic Survey
NOAA Affiliation
USC&GS;