Retrofrustary hecatonicosiprismatodishecatonicosachoron

The retrofrustary hecatonicosiprismatodishecatonicosachoron, or rafhippady, is a nonconvex uniform polychoron that consists of 120 great rhombidodecahedra, 120 small dodecicosahedra, 120 icosidodecatruncated icosidodecahedra, and 1200 hexagonal prisms. Two great rhombidodecahedra, two small dodecicosahedra, four icosidodecatruncated icosidodecahedra, and four hexagonal prisms join at each vertex.

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