Small retrofrustary dishexacositetrishecatonicosachoron

The small retrofrustary dishexacositetrishecatonicosachoron, or sirf duxthi, is a nonconvex uniform polychoron that consists of 120 dodecadodecahedra, 600 octahedra, 120 great rhombidodecahedra, 120 great ditrigonal dodecicosidodecahedra, 120 small icosicosidodecahedra, and 600 truncated octahedra. One dodecadodecahedron, one octahedron, two great rhombidodecahedra, two great ditrigonal dodecicosidodecahedra, two small icosicosidodecahedra, and four truncated octahedra join at each vertex.

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