Heptagonal duotruncatoprism

The heptagonal duotruncatoprism is a convex isogonal polychoron and the fifth member of the duoexpandoprisms that consists of 14 diheptagonal prisms, 49 rectangular trapezoprisms, 98 wedges and 49 tetragonal disphenoids obtained as the convex hull of two orthogonal heptagonal-tetradecagonal duoprisms. However, it cannot be made uniform.