A P1 <a href="https://en.wikipedia.org/wiki/Penrose_tiling" class="extiw" title="en:Penrose tiling">Penrose tiling</a> (black) superimposed on a P3 Penrose tiling (grey and blue).
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
2009-02-01
<span class="int-own-work" lang="en">Own work</span>