Sterntetraeder mit umgebenem Würfel.
Created and uploaded by Guy Inchbald (<a href="https://en.wikipedia.org/wiki/User:Steelpillow" class="extiw" title="en:User:Steelpillow">Steelpillow</a>)
Originally uploaded on en.wikipedia (Transferred by <a href="//commons.wikimedia.org/wiki/User:Anne-Sophie_Ofrim" title="User:Anne-Sophie Ofrim">Anne-Sophie Ofrim</a>)