Cairn with two boundary stones

A glorious day. My attention was diverted by a pair of mewing buzzards but they kept too distant for my camera. So back to earth, on Newton Moor, one of a pair of Bronze Age round cairns with two partly buried boundary stones. One is inscribed “TKS 1815” and the other stone “RY 1752” on one side and “GN” on the other.

“RY” stands for Ralph Yoward who re-leased the Lordship of Hutton Manor from the Crown after the death of his father, Richard, in 1751. I guess this boundary stone pertains to a condition of the new lease by which he had to make a terrier (a sort of record) of the estate within a year. As for “GN” and “TKS”, more research is needed I’m afraid.