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Octagonal Prism Key Chain
Above:With original package
Click a thumbnail to see its larger version and description.
At 30 mm, this key chain version is approximately half the size of the standard version.

The "Magic Octagonal Prism" was first mentioned in David Singmasters Cubic Circular Issue 1 from Autum 1981. Back then a standard size and three miniature sizes (37 mm, 34 mm, 30 mm) were reported.

Image 2 compares the puzzle with a standard 57 mm Octagonal Prism.



Thank you to the following people for their assistance in helping collect the information on this page: Sandy.


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