Dissection of Two Truncated Octahedra into a Cube
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This Demonstration shows a six-piece dissection of two truncated octahedra into a cube, as noted by David Paterson (1988) and Anton Hanegraaf.
G. N. Frederickson, Dissections: Plane & Fancy, New York, NY: Cambridge Univ. Press, 1997 p. 240.