I've seen slightly different pictures of the MK II that vary from the pic that gagamut linked to.
Examples are mirror or not - my MK II does have a mirror, that pic does not
Fat or skinny pillar- mine is skinny
black or silver donut (I'm not sure what it's called, the black piece that the tonearm hangs from) - mine is silver metal and the pic shows black and I believe rubber.
The consistent thing on all MK II pics I have seen is that the golf ball is covered with the silver metal piece.