Small gyrowedged biomnisnub decachoron

The small gyrowedged biomnisnub decachoron or sigwebosid is a convex isogonal polychoron that consists of 10 snub tetrahedra, 40 triangular antiprisms of two kinds, 60 digonal-rectangular gyrowedges, 60 phyllic disphenoids and 120 irregular tetrahedra. However, it cannot be made scaliform.