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Each piece has a unique colour, arrange from lightest to darkest. Functions similar to the Masterball, but with only one vertical slice.
Speaking about solving this puzzle is equivalent to the Masterball.
Its production started no later than 1982 since it was mentioned in David Signmaster's Cubic Circular of that year.
If you're looking to buy, eBay is the one place you can find almost anything... if you're willing to wait for it, then pay the price!
Thank you to the following people for their assistance in helping collect the information on this page: Carter, Geert Hellings.
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