Retrosphenoverted trispentachoron

The retrosphenoverted trispentachoron, or rawvtip, is a nonconvex uniform polychoron that consists of 5 regular octahedra, 5 truncated tetrahedra, and 5 octahemioctahedra. 1 octahedron, 2 truncated tetrahedra, and 2 octahemioctahedra join at each vertex.

It is in the same regiment as the small rhombated pentachoron.