It's been a while since I fed the Airfix habit, then this turned-up! How cool is this, too cool for Space-school, that's how!
The bag of bits seems to have been mucked-about with, containing both composition and glass marbles in several sizes, I suspect the three white glass 'chinas' are the originals, with the composition balls added by the owner.
However; you can also see the clip-in stands which have to be removed to get the board back in its box, so something that might reasonable have been expected to have been lost (or broken) years ago.
RIP ARNOLD PALMER: HE GAVE US TOY GOLF TOO
3 minutes ago