This is an example for a reducible complex polyhedron. Its incidence matrix readily derives from those of its factors. Its real space embedding likewise is obtained as the duoprism of the respective embeddings of the factors.

Incidence matrix according to Dynkin symbol

x3   x3-3-o3

.    .    .  | 24 | 1  3 | 3 1
-------------+----+------+----
x3   .    .  |  3 | 8  * | 3 0
.    x3   .  |  3 | * 24 | 1 1
-------------+----+------+----
x3   x3   .  ♦  9 | 3  3 | 8 *
.    x3-3-o3 ♦  8 | 0  8 | * 3