This flush bracket was used during the Third geodetic levelling of England & Wales. It was included on the Liskeard to Yelverton levelling line. The surveyor's description was SW face, 2' SE from W angle of school, NE side of road, Gulworthy. (
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It was 157.4010 metres above sea-level(Newlyn Datum). The flush bracket was last verified in 1963 and last levelled in 1952.