SVG file of the British civil ship jack made by <a href="//commons.wikimedia.org/wiki/User:Yaddah" title="User:Yaddah">User:Yaddah</a> using code by <a href="//commons.wikimedia.org/wiki/User:Stefan-Xp" title="User:Stefan-Xp">User:Stefan-Xp</a>. For description and use see <b><a href="https://en.wikipedia.org/wiki/en:Union_Jack#Pilot_Jack" class="extiw" title="w:en:Union Jack">Pilot Jack</a></b>.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Nightstallion" title="User:Nightstallion">Nightstallion</a> assumed (based on copyright claims).
4 June 2006 (original upload date)
No machine-readable source provided. Own work assumed (based on copyright claims).