The top and bottom of this model are sets of three larger triangles. Three irregular pentagons rise (or fall) from the outside of these. Six additional pentagons and three pairs of small triangles are aroung the middle of the model., making for a total of six larger triangles, twelve irregular pentagons, and eighteen small triangles. Each pentagon is coplanar with two triangles. A mark on the model reads: Pentagonal (/) Dodecahedron (/) Nov-11-1935.
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