Great retrofrustary prismatodishecatonicosachoron

The great retrofrustary prismatodishecatonicosachoron, or girfipady, is a nonconvex uniform polychoron that consists of 120 great icosicosidodecahedra, 120 small rhombicosidodecahedra, and 1200 hexagonal prisms. Two great icosicosidodecahedra, two small rhombicosidodecahedra, and four hexagonal prisms join at each vertex.

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