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~ The following text comes from the instruction sheet that covers all the Geo-Logic puzzles ~

"All STAR-ART Geo-Logic Puzzles have 6 pieces, for each puzzle. These 6 pieces are IDENTICAL IN SHAPE. There is no 'key piece' to find and push. All Puzzles can be simple, and quite gently, TUGGED - PULLED - WIGGLED "AP-ART" ("Sculpture That Comes Apart"). All come apart with a dramatic scattering of the pieces.

The 8 puzzles covered under this line are:

Geo-Logic molds are finished to tolerances of +/- 0.001"; molded parts must be held to +/- 0.003" overall for the proper balance between frustration and reward . . . to give you FITS.

STAR-ART, Sculpture That Comes Apart, Geo-Logic Puzzles, by S.T.Coffin for Nylon Products Corporation, Clinton, Mass. 01510

CETUS, the PLATONIC TETRAHEDRON member of the Geo-Logic Puzzle Family; recommended for all ages , 6 to 90.

CETUS, the simplest-looking Geo-Logic Puzzle, is not all that simple. The Greek mathematician/philosopher Plato found the tetrahedron, simplest of the Platonic solids, to be one of the most interesting. Before learning how to take this sculptured puzzle version apart, look through several of a transparent CETUS' small "windows" for a neat color-blending lesson. The hollow shape inside is a rhombic dodecahedron. It will hold a ring, sea shell, or other small gift, or the knotted end of a thread or fish-line hanger.

The box pics shown above are courtesy of my good friend Tom Vigneau
The puzzle pic courtesy of Puzzle World

TAURI, the ILLUSION OF SPINNING Geo-Logic Puzzle, for ADULTS of all ages.

TAURI is named for the youngest class of stars -- T-TAURI -- whose erratic changes in brightness give the illusion of spinning. After much use, your TAURI can be spun apart; for now, tug gently at any two pairs of opposite "tunnel ends". Oops! Make your head spin? Those 6 identically-shaped pieces now need an astronaut's extra-dimesional thinking and cool dexterity to coax them back into structured order.

The puzzle pic courtesy of Puzzle World

ARIES, the RAMbunctious Geo-Logic Puzzle.

ARIES is the constellation named after the RAM of the Golden Fleece, and First Sign of The Zodiac. Find ARIES' two rams-head profiles? ARIES' shape also suggests an astronaut's module (several ARIES can be stacked together in several ways which are also rocket-like). Since "astronaut" comes from Jason, the Argonaut, who sought the RAM, don't let this Geo-Logic Puzzle fleece you. Cool sharp wits and astronaut dexterity will master ARIES RAMbunctious qualities every time. (Some of the time?). Trouble can start as you begin to look for ways to take ARIES apart -- it can "self-destruct" into 6 just-alike asteroidal pieces, leaving no re-joining clues. If it does not, tug gently with opposed thumb-and-fingertip pairs at individual pieces of ARIES' "neck" and, say, "nose" or either "horn". If nothing gives, shift your grip -- either hand -- to another piece. When you feel loosening, PULL. RAMbunctious! If you still have hold of a piece or two, fine. But ARIES, like all five Geo-Logic Puzzles, has no "key piece"; it has 6. These unique pieces may be laid out flat in some interesting patterns, but that doesn't restore ARIES, the RAM.

The box pics shown above are courtesy of my good friend Tom Vigneau
The puzzle pic courtesy of Puzzle World

NOVA, the mysteriously beautiful but infuriatingly changeable Geo-Logic Puzzle. Not for children!

NOVA is the subtle, serenely sculptured but excessively changeable Geo-Logic Puzzle. Like the strange starts of the same name, NOVA can be made to expand apart by slow wiggling tugging at any two (of six) opposite pieces. (It takes careful looking to find those). Unique among all known puzzles, the 6 geometrically-identical NOVA pieces will first all move away from one another uniformly; then, at an unpredictable "critical point", ERUPT! Just like celestial NOVAE, which expand, then erupt, unpredictably.

The puzzle pic courtesy of Puzzle World

SPIRUS is the LAW AND ORDER Geo-Logoc Puzzle, also called SPINEY NERVE WRACKER, a real ADULT toy.

SPIRUS is the Geo-Logic Puzzle which tells us that those spiral galaxies which look so graceful through a telescope may be sharply forbidding environments for humans who venture too close. (This puzzle not advised for young children!) Tugged apart without force or violence along any of 4 axes (find 'em? OOPS!) SPIRUS' jagged pieces demonstrate how important the law of gravity is to our orderly universe. Gather them up; yes, they are identical in shape. LAW AND ORDER will help you to re-sculpt SPIRUS into its "frozen motion" whole.

The puzzle pics courtesy of Puzzle World

UNI, the UNIversal puzzle link that provides the nucleous of a whole UNIverse of Geo-Logic STAR-ART puzzles.

UNI, is a stellar spectacle in itself, but dozens of GALAXY combinations result when the UNI's six identical pieces link up with ARIES, NOVA AND SPIRUS. You may find UNI coeducational -- so difficult to handle that you need a partner to hold one 3-piece stelliform while you mate the other one.

GALAXY is the most unique 3-dimensional Geo-Logic puzzle in the world.

GALAXY is an interlocking combination of 6 puzzles (2 ARIES, 1 UNI, 2 NOVA and 1 SPIRUS). This is a total of 36 pieces.

Dozens of varieties of GALAXY are possible -- all require dexterity, imagination, perserverence and artistic appreciation.


There is no limit to the variety of GALAXIES that can be created.

Shown left is a picture of a box that shows two of these puzzles -- ARIES, UNI . . .
made by another manufacturer, Samuel Ward Company.

You'll notice that their version of Skor-Mor's ARIES is spelled a little differently

This pic is courtesy of Tom Vigneau.

\/   P U Z Z L E S   \/
 . . . . . in my collection . . . . .

XEON . . . The Molecule Puzzle   . . . injected-molded version of Stewart Coffin's wood original of the Altekreuse puzzle .   This one's a hot item . . . it's got heat fins on it . (not part of the Geo-Logic line, but still made by Skor-Mor).


Not quite a symmetrical shape . . . a couple of odd parts make it slightly amorphous ! (a hybrid from mixing parts of the regular names in the series).

Aries   An injected-molded version of Stewart Coffin's 4 Corners

Expanding Cube
inner structure is taken from Stewart Coffin's design in his hardwood version by the same name ! (not part of the Geo-Logic line, but still made by Skor-Mor).