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Escher's Bond of Union - 1000pc Jigsaw Puzzle By Buffalo Games (discon) - SeriousPuzzles.com
M.C. Escher's "Day and Night" 1500 pc. A relatively rare puzzle made by Selegiochi. I've been puzzling since childhood and this was the most difficult I've ever done –– thanks to the
Collection MC Escher puzzles 12 pieces 1980 - Catawiki
Hand with Reflecting Sphere” Puzzle 1000 pieces – M.C. Escher – The Official Website