John, one of my regular readers, put me onto this. It’s a dressed sandstone stone at the corner of Sunny Bank Plantation at the foot of Clay Bank. The inscription says “NOV 1906 PENSHURST ACORN”. The wording occupied my thoughts on my cycle home. A boundary stone? But sandstone boundary stones are more usual on the high moors and a few generations earlier. I can not think of any 20th century boundary stones on the moors. Back home Google came up with some clues.
In Penshurst Place, in Kent there is, or was, a very famous oak tree called the Sidney Oak after Sir Philip Sidney, a prominent Elizabethan soldier, poet and courtier. I say was because it finally succumbed to old age only last year, reputed to be 1,000 years old. Does the stone mark the spot where an acorn from the Penshurst Sidney Oak was planted? There is no oak tree now growing underneath the shade of an overgrown spruce.
But is there a connection between this odd corner of Ingleby Greenhow and Penshurst Place. Well yes, in the mid 19th century, Lady Mary Foulis, only child and heiress of the last Foulis baronet, Lord of the Manor of Ingleby Greenhow, married the 2nd Lord de Lisle & Dudley of Penshurst Castle, who was a descendant of the said Sir Philip Sydney. So the two estates came to belong to the same family.
Apparently there are another 4 or 5 similar stones in the neighbourhood. I wonder if those acorns have had more success.
For those who like a scenic posting, there is a fine view of Roseberry from the stone looking almost due north, unfortunately that spruce tree prevented me from getting it as a backdrop, so a bonus today: