Great retrofrustary distetracontoctachoron

The great retrofrustary distetracontoctachoron, or girfaddic, is a nonconvex uniform polychoron that consists of 48 cuboctahedra and 48 small cubicuboctahedra. 2 cuboctahedra and 4 small cubicuboctahedra join at each vertex.

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