Both the concept and composition of this project are exceedingly simple: vaguely inspired by a concentric lock, it is a series of concentric geometric polygons cut out of a board of masonite. Yet each ring is slightly offset, and can be rotated as many times as it has sides. There are 840 unique configurations (it would be 2520 if not for the rotational symmetry of the triangle), with only one that properly aligns the markings. You don't win anything if you find it, unfortunately.
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