oh and looks like something similar was found at Durrington Walls more recently, too?
http://www.shef.ac.uk/content/1/c6/02/21/27/PDF-Interim-Report-2005-summary.pdf (search for plaque, it's only a sentence or two!)
There's also something quite similar here (with a picture) from Gloucestershire
http://www.le.ac.uk/has/ps/past/past52/past52.html
and also there have been plaques found at Grimes Graves in Norfolk?
A picture of the Poulton one is here
http://www.poultonproject.org/plaque.htm
I suppose it shows how much people must have moved about in those days, if similar cultural objects / rituals turn up all over the country?
