<a href="https://en.wikipedia.org/wiki/ambigram" class="extiw" title="en:ambigram">Ambigram</a> <b><a href="https://en.wikipedia.org/wiki/Fuck_you" class="extiw" title="en:Fuck you">Fuck you</a></b>, <a href="https://en.wikipedia.org/wiki/Rubber_stamp" class="extiw" title="en:Rubber stamp">rubber stamp</a>. 180° rotational symmetry. <a href="https://en.wikipedia.org/wiki/Focus_stacking" class="extiw" title="en:Focus stacking">Focus stacking</a> from 24 photographs (software Helicon Focus).
<a href="//commons.wikimedia.org/wiki/User:Basile_Morin" title="User:Basile Morin">Basile Morin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>