20 Cent Box – Secret Trick Puzzle Box

The goal of the 20 Cent Box looks simple enough, open the box and get the 20 Euro cent coin, but after taking a good look at it, you will probably start doubting it is possible, but be sure it is.
The trick involved to solve this puzzle is so clever, it requires some serious thinking outside the box. Be prepared for a lot of frustration.
Made by Jean Claude Constantin, puzzles designer, inventor, and artist.