Geograph - photograph every grid square

Ordnance Survey bolt benchmark on the north-west face of Sholden church tower. This bench mark was established in 1851 during the First primary levelling of England & Wales, and was levelled with a height of 56.2520 feet [17.1456 metres] above mean sea level (Liverpool datum). It was included on the London to Dover levelling line. The surveyor's description was "No. 360. Bolt in North-west face of Sholden Church tower, Upper Deal ; 1.31 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.