A drawing similar (but slightly different) to the orthogonal projection of an icosahedron to the plane of one of its faces.
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Attention: This <b>is not a true icosahedron</b>, probably is it even not a polyhedron.
<a href="//commons.wikimedia.org/w/index.php?title=User:Quantockgoblin&amp;action=edit&amp;redlink=1" class="new" title="User:Quantockgoblin (page does not exist)">Quantockgoblin</a>
<span class="int-own-work" lang="en">Own work</span>