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A handmade cube which solved state can be found by touching but hardly by looking.
Instead of stickers this cube is covered with bits of sandpaper. The bits have different grits (80, 120, 240, 360, 600, 1200) to make the sides distinguishable. Under ordinary light the face are almost identical.
Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann.
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