A sign on an entrance to a building in Chicago prohibiting possessing firearms within.
<a href="//commons.wikimedia.org/w/index.php?title=User:Lenina_Libera&amp;action=edit&amp;redlink=1" class="new" title="User:Lenina Libera (page does not exist)">Lenina Libera</a>
<span class="int-own-work" lang="en">Own work</span>