Ordnance Survey surveyors benchmark carved in stone on a wall in Lancaster England


Ordnance Survey surveyors benchmark carved in stone on a wall in Lancaster England


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Photo credit: © Michael Sayles / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: altitude, bench, benchmark, benchmarks, carved, carving, mark, marker, network, ordnance, precise, stone, survey, surveyor, surveyors, wall