alternated cubic honeycomb vertex figure
<a href="//commons.wikimedia.org/w/index.php?title=User:Marcus_erronius&amp;action=edit&amp;redlink=1" class="new" title="User:Marcus erronius (page does not exist)">Marcus erronius</a>
2011-07-26
<span class="int-own-work" lang="en">Own work</span>