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Mr Puzzle - We know puzzles!

Puzzles by Maker > Mr Puzzle Standard

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Pyramid DIFFICULTY RATING 1 The object is to make the tetrahedron from just two pieces. Tetrahedron:   A four sided solid; in this case a triangular based pyramid. E.T.Johnson patented a wooden version of this puzzle in 1940 and FUN Inc. Chicago produced a widely known plastic version of it in 1956. It's in every Sciencecentre you've ever been to!! Is it too simple to have in your puzzle collection? Size 80mm x 80mm x 66mm (each piece 80mm x 40mm x 40mm) Packaged DISASSEMBLED for your puzzling enjoyment