Small retrofrustary prismatotetrishecatonicosachoron

The small retrofrustary prismatotetrishecatonicosachoron, or sirfupthi, is a nonconvex uniform polychoron that consists of 120 great icosicosidodecahedra, 120 great rhombidodecahedra, 120 small dodecicosidodecahedra, 120 icosidodecatruncated icosidodecahedra, and 1200 hexagonal prisms. Two great icosicosidodecahedra, two great rhombidodecahedra, two small dodecicosidodecahedra, 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.