>It's a 'carved stone' not a panel!
Aha! But they ain't usually carved are they? And 'pecked stone' just sounds daft ;)
Mind you, I'm fond of 'Inscribed stone' and they aren't inscribed either. Maybe 'decorated stone' woud be better, seeing that there are still those who dispute the 'art' in 'rock art'. But 'decorated' that just makes me think of wallpaper paste. I've noticed the term 'marked stone' also that makes me think of stones with a price on their heads. "Wanted. Lewisean Gneiss. Dead or Alive."
(I'm ffaaaaar to addled right now to be posting things on the internet I am)