nigelswift wrote:
Let's face it, a whole culture of standing stones must have been uprooted and is now holding up gates, unrecognised.
Some of the snaffling has been recorded:http://www.themodernantiquarian.com/site/6699/five_kings.html
And it's not confined to standing stones:
http://www.themodernantiquarian.com/site/5722/high_shaws.html
The wedge and feather marks are on loads of rock art panels in Northumberland, Old Bewick and Chatton hillfort being a couple of the best examples. There are other places where the feathering marks have become so heavily eroded that it raises suspicions that the quarrying was a long time ago (i.e. pre-gatepost snaffling). Some around here are undoubtedly roman, whilst others may actually be bronze age. There was quite a thing for hacking chunks of carved outcrop to be re-used as cist covers.
