Still not sure but it's in an unusual place for such and it doesn't radiate from the centre of knob all the way to the edge. I have used one of those magnifying lights and still can't tell, maybe it is a mold mark I can't seem to feel an edge on the area.

Here's a photo attached that's as sharp as I can get.

#090000695 Mk2 BLUE 12Gig

Edited by jwickis on 19/11/00 01:03 PM.