Symmetric Canonical Self-Dual Enneahedra

11 total:  1 

This is the only one with C8v symmetry

This is the only one with 2 edge lengths

(box: x-ray)  (F: faces)  (slider: perspective)  (image: L=rotate R=zoom)  (M: metrics)

Self-Dual Enneahedron #1 (canonical)