All that is known for sure about the hole is that it was extant for Norden's account of the tomb in 1728 (or 1610 if you believe Borlase) bizarrely Norden compared it to a mounting for a flagpole.
The current angle of the hole realtive to the capstone plane/vertical may be misleading as there is great speculation regarding the original attitude of the capstone. Presently, the capstone sits neatly on the side stones, but when the height of the fallen backstone is considered, it could never have fitted beneath the rear of the capstone at the present angle. Borlase reckoned that the capstone smashed the tops off the sidestones when it fell, producing the arrangement we see today, but we think this is a little unlikely.
There is quite a flaring of the hole on the underside of the capstone, and this very pronounced on the "rear" side which would fit with weathering.
We noticed five depressions in the back of the rear stone that may be drill holes, plus two really deep ones in the side of the surviving flanking stone.
The origin of the large capstone perforation remains a mystery.
Maggie & Keith
Reply | with quote | Posted by Megalithics 12th May 2010ce 18:47 |
Trethevy Quoit (Sanctuary, May 12, 2010, 17:08)- Re: Trethevy Quoit (Megalithics, May 12, 2010, 18:47)
|
|