A flag design used by Jama'at at-Tawhid wa'l-Jihad (JTJ). This flag appeared in the 7 October 2004 execution video of Kenneth Bigley, with the addition of the words "Katibat as-Siddiq" (as-Siddiq Brigade) in white  script under the words "Tawhid wa'l-Jihad". A flag of this design, discovered in Fallujah in November 2004 is seen here: [1]
Own work
Axiom292