Divisional insignia designed in 1916, and worn by the 66th (2nd East Lancashire) Division during the First World War. The insignia was revived for the 66th Infantry Division in 1939, during the Second World War, but was never actually worn.
<div style="display:inline-block;padding:0 3px;background-color:#CCF">Original:</div> <div style="display:inline-block;padding:3px 0;"><a href="//commons.wikimedia.org/w/index.php?title=User:British_Army&amp;action=edit&amp;redlink=1" class="new" title="User:British Army (page does not exist)">British Army</a></div> <div style="display:inline-block;padding:0 3px;background-color:#CCF">Vector: </div> <div style="display:inline-block;"><a href="//commons.wikimedia.org/wiki/User:SiBr4" title="User:SiBr4">SiBr4</a></div>
<ul><li><cite class="book" style="font-style:normal">(1986) <i> British Battle Insignia (1) 1914-18</i>, <a href="https://en.wikipedia.org/wiki/en:Oxford" class="extiw" title="w:en:Oxford"><span title="city in Oxfordshire, England">Oxford</span></a>:  Osprey Publishing  <small></small></cite></li>
<li><cite class="book" style="font-style:normal" id="harv">Chappell, Michael (1987)      <i> British Battle Insignia 1939–1940</i>, Men-At-Arms, 2, <a href="https://en.wikipedia.org/wiki/en:London" class="extiw" title="w:en:London"><span title="capital and largest city of the United Kingdom">London</span></a>:  <a href="//commons.wikimedia.org/w/index.php?title=Osprey_Publishing&amp;action=edit&amp;redlink=1" class="new" title="Osprey Publishing (page does not exist)">Osprey</a>  <small><a href="https://en.wikipedia.org/wiki/International_Standard_Book_Number" class="extiw" title="en:International Standard Book Number">ISBN</a>:  <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-0-85045-739-1" title="Special:BookSources/978-0-85045-739-1">978-0-85045-739-1</a>. </small></cite></li>
<li><cite class="book" style="font-style:normal" id="harv">Cole, Howard (1973)      <i> Formation Badges of World War 2: Britain, Commonwealth and Empire</i>, <a href="https://en.wikipedia.org/wiki/en:London" class="extiw" title="w:en:London"><span title="capital and largest city of the United Kingdom">London</span></a>:  Arms and Armour Press  <small><a href="https://en.wikipedia.org/wiki/Online_Computer_Library_Center" class="extiw" title="en:Online Computer Library Center">OCLC</a>:   <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/464094349">464094349</a>. </small></cite></li>
<li><cite class="book" style="font-style:normal" id="harv">Swinton, Ernest Dunlop (1936)      <i> Twenty Years After: The Battlefields of 1914-18; Then and Now</i>, II, <a href="https://en.wikipedia.org/wiki/en:London" class="extiw" title="w:en:London"><span title="capital and largest city of the United Kingdom">London</span></a>:  G. Newnes  <small><a href="https://en.wikipedia.org/wiki/Online_Computer_Library_Center" class="extiw" title="en:Online Computer Library Center">OCLC</a>:   <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/4820658">4820658</a>. </small></cite></li>
<li><a rel="nofollow" class="external text" href="http://www.delvillewood.com/66th%20east%20lancashire%20division.htm">The 66th (East Lancashire) Division: September-November 1918</a>. <i>Delville Wood Memorial</i>. Retrieved on <span class="mw-formatted-date" title="2016-04-12">12 April 2016</span>.</li></ul>