The inscription, in debased Roman capitals, reads "Rialobrani Cunovali fili", which translates as "Rialobranus son of Cunovalus." Rialobran is not known elsewhere, but he may have been a Cornish petty king or tribal leader. The inscription has been dated on stylistic grounds to the 5th to 8th century AD. It is thought, however, that the stone itself could be a prehistoric standing stone. The inscription is on the northern face, although the bottom of the inscription is buried in the ground. At one time two plain crosses were said to be viewable at the upper end of the stone. The horizontal axis of the lower cross, is clearly visible but the vertical stroke is very indistinct. The smaller cross above this can no longer be distinguished. Sadly on Thursday 1 June 2023, the stone was vandalised by unknown individuals. The top of the stone was covered in petrol and lit on fire. Additionally, a 4" hole had been dug around the base of the stone. CASPN and police were alerted. Definitely worth a look if you're doing the circular walk.