4x 3D'd 2D = 1&only M.C. Escher lithopanes

If the late artist M.C. Escher could see these Makerware Thing files and the 3D-printed results of those, he would go completely out of his mathmatical mastermind!

Only the minimized Thing files are uploaded at this time, because the genuine STL source files (100MB+) are way too large to be instantly uploaded onto Thingiverse.

To be printed with transparent filament at 100% fill, 3 shells, 0,1mm filament layer height, centered on the printerbed head up, without raft or supports.