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Polyhedron Model by Martin Berman, Gyroelongated Square Dipyramid
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
The faces of this model are sixteen equilateral triangles. Four are arranged in pyramid on one end, four in a pyramid at the bottom, and the remainder around the middle as in an antiprism.
National Museum of American History’s own descriptionCredit linePolyhedron Model by Martin Berman, Gyroelongated Square Dipyramid. 1970. Berman, Martin. National Museum of American History, Gift of Martin Berman. CC0.