Koen, yes, I wonder about that too. The middle part really looks that way. The upper part less so, but maybe that's why the upper part is so difficult to interpret, because it's one behind the other.
It's such an odd drawing. It doesn't quite look like one container (with transparency) or two (the base of the behind one is missing).
It's such an odd drawing. It doesn't quite look like one container (with transparency) or two (the base of the behind one is missing).

