<a href="https://en.wikipedia.org/wiki/Shoulder_Sleeve_Insignia_(US_Army)" class="extiw" title="w:Shoulder Sleeve Insignia (US Army)">Shoulder Sleeve Insignia</a> of the <a href="https://en.wikipedia.org/wiki/100th_Division_(United_States)" class="extiw" title="w:100th Division (United States)">100th Division (United States)</a>.
<dl><dt>Description</dt></dl><ul><li><i>Upon a blue shield approximately 2 1/2 inches (6.35cm) in height the number "100" in round block letters, the upper half of the numerals white, the lower half yellow.</i></li></ul><dl><dt>Background</dt></dl><ul><li>The shoulder sleeve insignia was originally approved for the 100th Division on 29 May 1923. It was redesignated for the 100th Airborne Division on 12 Dec 1946. On 29 Jan 1947 the airborne tab was rescinded. The insignia was amended to add the airborne tab on 13 Jun 1951. The shoulder sleeve insignia was redesignated for the 100th Infantry Division and amended to delete the airborne tab on 9 Aug 1956. Effective 7 Sep 1960 the insignia was redesignated for the 100th Division.</li></ul>
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2008-05-17
Own work, after <a rel="nofollow" class="external text" href="http://www.tioh.hqda.pentagon.mil/Div/100th%20Division.htm">the Army Institute of Heraldry</a>.