Date: Wed, 26 Feb 92
It is called "PYRIX" (retails for $10, I do not have a retail source) and is from:
Enpros Novelty Products, Lorentzstraat 2,
2912 AH Niewerkerk aan den IJssel,
The Netherlands -
tel 31 (0)1803-19133
DESCRIPTION: The puzzle is an assembly folding puzzle based on a size 3 tetrahedron.
The tetrahedron is dissected into 3 regular octahedrons and 11 tetrahedrons (1/3 the size of the original).
These pieces are strung on a thread like a necklace; an octahedron, 3 tetras, an octahedron, etc except
for one position that has only 2 tetras. The octahedrons are threaded on the diagonal of their square cross section.
OBJECT: The faces are colored and the object is to not only assemble a tetra but of course to do it with solid
colored faces, the enclosure says that there are 2 solutions as they have colored and strung the pieces.
PRELIMINARY REVIEW: It took about 1 hour. The puzzle is awkward to manipulate since it falls apart easily.
Doing it on a flat surface and using tape to hold it together seems to be the trick.
Binary Arts produced a puzzle called GeoMorph 12, that was similar in some way.