Stone five centuries old

This lump of old stone rock, which, curiously, has a lot of pebbles studded into it (why?), is a Grade II listed building.  Stuck behind a fence, just away from the road, it doesn't look at all significant.

In fact, it is the fifteenth century Ousley Old Cross - so called because it sits almost next to the Ousley Brook, because it resembles an ancient preaching-cross, and, er, it's old.  You wouldn't know.  

No one knows its history really; it just seems to have been a fixture here since forever.   But someone must have thought it worth preserving, even three or four centuries ago.