Small ditrigonary hecatonicosidishecatonicosihecatonicosachoron

The small ditrigonary hecatonicosidishecatonicosihecatonicosachoron, or sidthidy hi, is a nonconvex uniform polychoron that consists of 120 great icosidodecahedra, 120 icosidodecahedra, 120 icosidodecadodecahedra, and 120 small dodecicosahedra. Three great icosidodecahedra, three icosidodecahedra, six icosidodecadodecahedra, and six small dodecicosahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the rectified small ditrigonary hexacosihecatonicosachoron.