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Promotional item for the Mikrocentrum in Eindhoven, Netherlands.
Geert Hellings could have used a 3x3x3 as body for promoting his company in Eindhoven but being the collector that he is he obviously wanted a different puzzle and came up with this tetrahedral 2x2x2.
Like the "IAS 2005 DCD gift" (please refer to the separate entry) this tetrahedral 2x2x2 was made by Mefferts although only 2000 samples were produced of this design.
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