Small rhombic disoctachoron

The small rhombic disoctachoron, or sirdo, is a nonconvex uniform polychoron that consists of 8 truncated cubes, 8 small rhombihexahedra, and 32 triangular prisms. Two truncated cubes, two small rhombihexahedra, and two triangular prisms join at each vertex.

It can be constructed as a blend of four truncated cubic prisms.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the small rhombated tesseract.