Cheers Peter, it was probably there where I read it. Do you have a link to the article?
http://www.megalithic.co.uk/modules.php?op=modload&name=a312&file=index&do=showpic&pid=15910
It was one of the comments made to a very clear photo. The contributor made the suggestion that the grooves were linked to the Langdale axe factory The photo is at http://www.megalithic.co.uk/modules.php?op=modload&name=a312&file=index&do=showpic&pid=15909
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