Puzzle Box 'Sherlock Holmes The Case Of The Treasury Safe' in Wood

So, Sherlock Holmes, are you ready to crack your next mystery case? Start this elusive brain teaser by depositing the coin in the box, now how do you think you can get it out? The plot thickens! Once you've figured out this dastardly mystery, show it to your friends and prove you're the master of The Treasury Safe! Case Closed!

Description Length x 5.5 cm, Width x 15 cm, Height x 8 cm. Made from wood and copper. Puzzle game contains wooden treasury safe and coin within. Suitable for ages 8+.