TR3752 : Ordnance Survey bolt at Deal Castle

taken 9 years ago, near to Deal, Kent, Great Britain

Ordnance Survey bolt at Deal Castle
Ordnance Survey bolt at Deal Castle
Ordnance Survey bolt benchmark on the west face of the northern gatepost at the entrance to Deal Castle. This bench mark was established in 1851 during the First primary levelling of England & Wales, and was levelled with a height of 20.9340 feet [6.3807 metres] above mean sea level (Liverpool datum). It was included on the London to Dover levelling line. The surveyor's description was "No. 368. Bolt in corner of wall at entrance to Deal Castle ; 2.17 ft. above surface (p197)." The chiselled OS broad arrow has completely eroded away, but the bolt with its horizontal datum line (centre of photo) has survived.
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TR3752, 739 images   (more nearby search)
Photographer
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Date Taken
Wednesday, 8 August, 2012   (more nearby)
Submitted
Sunday, 12 August, 2012
Geographical Context
Historic sites and artefacts  Construction, Development  Defence, Military 
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Closeup  Informative 
Subject Location
OSGB36: geotagged! TR 3772 5220 [10m precision]
WGS84: 51:13.1684N 1:24.1694E
Camera Location
OSGB36: geotagged! TR 3772 5220
View Direction
EAST (about 90 degrees)
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