partitions, a mechanical puzzle made up of 8 identical shaped pieces
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Extreme Metal Puzzles is a set of three that includes The Skull, Total Eclipse & Quintus » Gadget Flow
Unusual Skills and Projects—GarE Maxton
28 Piece Metal IQ Puzzle Set - Best Toy Store!
28 Piece Metal IQ Puzzle Set - Best Toy Store!
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metal interlocking burr that requires 13 moves to solve
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