The rather unreliable Prophesy of Revelation planned a Round Table based Clock, having Seven standing Megaliths here during that Time. We are trying to identify the Seven Round Table Crowns, Heads of the Destroying Dragon.
Incomplete investigation: This appears to have a Crown every Fourth Position anticlockwise making Seven. Some have washed up at Timpsons, Ancient Brain Hemispheres. Compare Names with similar on the Wheel, Kent 1988 - 2000.