The Davenport Collection
- a growing resource on magic and entertainment history

Other mechanical puzzles

Trapped coin key ring puzzle

Trapped coin key ring puzzle

The clear plastic disk swivels round on the key ring. The puzzle is to remove the coin that is trapped inside the disk by a number of ball bearings. Every time you tap the puzzle so that the coin starts to drop out, the ball bearings roll down and stop the coin from going any further. The sure way of solving the puzzle requires a flick of your finger – but you need to know where to flick. This is a well designed and manufactured puzzle.

Boat puzzle

Boat puzzle

The wooden boat has a clear celluloid cover and inside are two ball bearings. The puzzle is to get a ball into the small hole at each end of the puzzle. Unless you know the secret, it’s frustrating. Getting the first ball in is easy – you simply tilt the boat sideways. But when you tilt the puzzle back to coax the second ball into the second hole, the first ball falls out. This is a puzzle that needs ingenuity rather than lots of jiggling. The puzzle has been popular over the decades and has often been used as a commercial give away.