Hmmm, i was looking at my kitchen widow this morning, a little distracted, when I began to feel a little knot in my tummy. Slowly I began to realise that this disconcerting feeling wasn't a minor heart attack but the onset of some form of enlightenment!!!
I was looking at my knife block, particularly the top left corner where the 'steel' was. Suddenly it seemed so obvious.
Is this a burnisher?
I'm still a little doubtful but it seems to fit the bill...