Of course it's part of the art - the British Rock Art tradition. A cob is a lump.
I've been deterring the CAU from this valley as there is so much to show them. I had hoped to show you the carved stones and for you to then show them the stones (but this was clearly impractical) Broadly their opinion is very similar to the one on this board BUT ____ Look at this.
Last week I posted this cairn ( http://www.themodernantiquarian.com/post/40277 ). It's not on the SMR yet, it's perhaps a hundred and twenty metres long, perhaps twenty metres at its highest point, and has what-might-be an entrance blocked with large boulders. It seems untouched since the day it was abandoned - part of a group of cairns - in the middle of nowhere. Not a peep from anybody here ...
Yet a couple of little cairns that, if they are genuine, 'upset the applecart'. What a little furore ! And yet not one of you will make the trip to see these beautiful things. The slab of peat I cut free, to see how deep the stones go into the peat, will still be loose. Please photograph this hole - show that it was built and that the peat has accumulated beside it. Because if you have difficulty with these simple things you'll be completely at sea with what is following ...