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Four rings of eight balls each.
The puzzle consists of four rings with eight colored balls each. There is an additional layer at the equator which can be turned in steps of 1/8th of a full circle.
The english version (under the name "Screwball") was distributed by Gazebo Games in two different packages. Clever Toys version bears the name "Naturál".
This puzzle was an exchange puzzle during IPP17 in 1997 under the name "Sortospherical puzzle".
Diameter: 80 mm
Height: 65 mm
Weight: 189 grams
There is also another version named "IQ Puzzle", seen in images 11-13. It apparently was produced primary for the dutch market. The alternative version (image 19) also uses this name.
In 2017 a mass produced version out of plastic hit the market, in black and yellow plastic. Please refer to images 14-18.
There exists another version (search for "Wooden Egg" in the museum) with a middle layer that is two marbles thick. Whether that version is made by Clever Toys is so far unknown.
Thank you to the following people for their assistance in helping collect the information on this page: Geert Hellings.
This puzzle can be found in collections of these members:
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