OS benchmark and bolt - Gnosall, St Lawrence's Church
Uploader's Comments
A First Primary Levelling bolt and cutmark on the buttress of the church, levelled in late 1858 at 344' 6" above mean sea level at Liverpool datum. It was last verified for height in the 1950s at 104.874m above Ordnance Datum Newlyn.
Uploaded to Geograph by Richard Law on 9 April 2016
