Well, all right - not necessarily the Grail itself, but a very unusual carved stone or two, possibly sarcophagus lids, and the best one has been dated to the 12th century, when the Templars were getting up to whatever they got up to when the Kirk Proper wasn't looking.
The carving is intriguing - I think it may be easier to see if you turn yourself through ninety degrees as you look. (Or the computer, if that's easier to manage.) Then it looks like the top of a Celtic Cross at the top (right, on the horizontal pic) with possibly a sword below it, on the left?
Anyway, here's the photo:
If you want to read the full story, follow this link.
I shall watch out for developments.
