National Museum of American History
Polyhedron Model by Martin Berman, Elongated Square Gyrobicupola
Berman, Martin · 1970
This model has squares top and bottom faces. A ring of four squares and four equilateral triangles is below top square and another such ring is above bottom square. An additional ring of eight squares around is center. Hence the model has a total of eighteen square faces and eight triangular faces.
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