11 by 6 3/8 in.
Escher challenges the assumptions we make when viewing a 2-D image that might represent a three dimensional object.
At the top of the image, a seemingly three dimensional gridded sphere sits atop...what? A flat paper version of the same sphere above it and that is balanced upon the same flat image of a sphere. Bruno Ernst illustrated the concept in his book "The Magic Mirror of MC Escher."
This print was hand-printed by Escher. It is signed and annotated. It is in excellent condition.
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