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This tan paper cut and folded model has twelve identical faces that are intersecting pentagrams produced by extending the edges of the faces of a regular dodecahedron. The twelve vertices are also identical. The surface is one of two first described by Johannes Kepler in 1619, and now known as a Kepler-Poinsot solid.
A mark reads: 41. Another mark reads: William Snow 187 (/) 1914.