4th Infantry Division shoulder insignia :  I created this work during the course of my official duties. As a United States Army soldier, it is considered the work of the United States Federal Government, and as such is in the public domain. -- Steven Williamson (HiB2Bornot2B) - talk 15:49, 26 July 2007 (UTC)
https://web.archive.org/web/20170131161747/http://www.tioh.hqda.pentagon.mil/Catalog/Heraldry.aspx?HeraldryId=6393&amp;CategoryId=3618&amp;grp=2&amp;menu=Uniformed%20Services&amp;ps=24&amp;p=0