At least it doesn't resemble a kneepad! lol
Hey, I've got one for ya. Look at the first picture of my box. (I'll show it again below)
I see dots and squares (outlined) where it looks like there were always marbles in the center area. Is it possible that these boxes didn't even come with a bag? Or is it likely that the extra mibs that came along, over time, went into the box after the bag was lost? And if so, why all exactly the same size?
Looks like it would hold 48 more marbles. Boy wouldn't that be something!
You can see the same thing in the left side area where the two marbles are missing.