Mr.Puzzle - The 20 Cent Box is one of my favorite trick boxes. It deceives you by the use of unnecessary features as well as a genius solution. Everything a good puzzles
High Quality Puzzles Gift Box For Adults - Gift For Puzzle People – Kubiya Games
German 20 Cent Trick Box (Version #2) – Puzzle Box World
20 Cent Box | Jean Claude Constantin TB-10
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Jean Claude Constantin 20 Cent Box (Version #2) : Toys & Games - Amazon.com
Amazon.com: Jean Claude Constantin 20 Cent Box (Version #2) : Toys & Games