Great retrofrustary trishecatonicosachoron

The great retrofrustary trishecatonicosachoron, or girfthi, is a nonconvex uniform polychoron that consists of 120 great icosicosidodecahedra, 120 small dodecicosidodecahedra, and 120 small dodecicosahedra. Two great icosicosidodecahedra, two small dodecicosidodecahedra, and two small dodecicosahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the antifrustary hexacositrishecatonicosachoron.