About 25 yards south of the Countless Stones
is a turn off. I precariously parked here and crossed the road to an entrance to a bridleway to see if I could see the Coffin Stone in it's field. Luckily, the crop had been harvested, and the stone(s) stood proud of the field, in full sight. I didn't approach the stones on this ocassion, being contented enough just to see them, and not wanting to encroach on what is obviously a cropping field. A couple of hundred yards further south is an entrance to Great Tottington Farm. I may ask here next time for permission to actually visit the stones.
There is also supposedly a circle, or ruined circle of stones (The Tottington Sarsens) at the head of the stream on the farm. It would be interesting to see if anything remains of this site/monument.