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Speckled Wood maybe??
I was chasing it around for a while so have not very good photos of the other side too which of course makes the ID easier. If you look in a book/chart the wall has the last 2 circles joining on the underside while the speckled woods are all separate.
Lat/Lng: 50.853093333333, -0.28233722222222
OS grid ref: TQ210073