Modern, CAD-drawn rendering of the Imperial German Luftstreitkräfte's Jasta 18 "raven" squadron insignia
<a href="//commons.wikimedia.org/w/index.php?title=User:The_PIPE&amp;action=edit&amp;redlink=1" class="new" title="User:The PIPE (page does not exist)">The PIPE</a>
<span class="int-own-work" lang="en">Own work</span>