Some of you like to find stones that are not listed or recognised. Could they be waymarkers? I don't know, but you might find this book of interest. It could be important or it could be pie in the sky. Its nothing to do with leylines and mystic mumbo jumbo.
My review can be seen here http://www.megalithic.co.uk/article.php?sid=2146412416&mode=&order=0