Hanayama have been creating puzzles for 40 years! To celebrate they have re-released the Cast Medallion puzzle in a special limited edition box. The Medallion puzzle is a maze that you must navigate by rotating the gold and silver disks. Take a wrong turn or try a shortcut and you may well find yourself at a dead end. A fairly challenging puzzle that requires a good amount of reasoning to complete. It comes in at 5 out of 6 on the Hanayama difficulty scale. Only 1,000 of these were made with the special 40 year celebration sleeve.