National Museum of American History
Polyhedron Model by Michael Berman, Gyrate Bidiminished Rhombicosidodecahedron
Berman, Martin · 1970
This model has a regular pentagon on top and bottom and includes two regular decagons as faces. Half of the model mirror image of the other, if one selects the right halves. The faces total ten equilateral triangles, twenty squares, ten regular pentagons, and two regular decagons.
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