Shutter Puzzle Box Playing Cards But ingenious engineering makes the

But ingenious engineering makes the motion possible

Legend has it that Winston Churchill and Niels Bohr both carried one in their pockets

Designed by master puzzle inventor

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The hand-painted Tree Top spins upside down

Shutter Puzzle Box Playing Cards But ingenious engineering makes theWe discovered this beautiful puzzle while traveling through the mountains of Hakone, Japan. We were already impressed with the seven exotic kinds of wood used in the construction but when we saw the top slide open, our jaws dropped. The rotating mechanism reminded us of a camera shutter or a blooming flower. Turns out, the designer, Hiroshi Iwahara, was inspired by robot anime and the spiraling metal doors that led to a secret base. If you decide to