This is an odd stone, its marked as a bullaun stone but really I cant see how it could be.
There are possibly three very faint depression on its surface as I have marked with the red circles. However today I poured some water in them but it didnt settle and just ran straight off.
However the fact that this rock was left in the corner of the field and never removed must mean something?
Update:
I read recently that the bullaun stone has been removed. This stone is thought to be prehistoric however. I have no idea what kind of monument it was part of.