Digonal double tetraswirltegum

The digonal double tetraswirltegum is a convex isochoric polychoron with 32 identical cells. It is the third in an infinite family of isochoric digonal tegmatic swirlchora, the other being the square duoantitegum.

Each cell of this polychoron has bilateral symmetry, with 1 rectangular-symmetric octagon, 4 mirror-symmetric hexagons, 2 squares, for faces.