National Museum of American History
Polyhedron Model by Martin Berman, Elongated Pentagonal Gyrobicupola
Berman, Martin · 1970
This model has a pentagonal top and bottom. Five squares and five equilateral triangles are around each pentagon. Ten squares are around middle of model. Hence the faces of the model are two regular pentagons, twenty squares, and ten equilateral triangles. This is not identical to model 1978.1065.058.
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