Heptagonal duotransitionalterprism

The heptagonal duotransitionalterprism is a convex isogonal polychoron and the fifth member of the duotransitionalterprisms that consists of 14 heptagonal trapezorhombihedra, 14 heptagonal prisms and 49 rectangular trapezoprisms obtained as the convex hull of two orthogonal hexagonal-dodecagonal duoprisms. However, it cannot be made scaliform.