Great retroinverted ditetrahedronary trishecatonicosachoron

The great retroinverted ditetrahedronary trishecatonicosachoron, or gridtathi, is a nonconvex uniform polychoron that consists of 120 small ditrigonary icosidodecahedra, 120 dodecahedra, and 120 icosidodecadodecahedra. Four small ditrigonary icosidodecahedra, four dodecahedra, and twelve icosidodecadodecahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the ditetrahedronary dishecatonicosachoron.