Small retrofrustary hexacosidishecatonicosachoron

The small retrofrustary hexacosidishecatonicosachoron, or sirfixady, is a nonconvex uniform polychoron that consists of 120 great icosicosidodecahedra, 120 small rhombicosidodecahedra, and 600 truncated octahedra. Two great icosicosidodecahedra, two small rhombicosidodecahedra, and four truncated octahedra join at each vertex.

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