Depiction of an Ottoman "Zulfikar flag" typically in use during the 16th and 17th centuries. 
The design is a rough approximation of the Zulfikar flag used by Selim I in the 1510s, File:Türkei Seidenfahne makffm.jpg

" During the 16th-17th centuries the Zulfikar flags were widespread in Ottoman army and numerous red Zulfikar flags left in the battles in Europe are shown in museums and one can even see a red, triangular Zulfikar flag in the Doge Palace in Venice." Bariş Kılıçbay, 20 August 1999 (crwflags.com)Original raster (.png) version uploaded by Ingoman.

Vector (.svg) version created by Kevyn using VectorMagic.com.
Transferred from en.wikipedia to Commons.
Kevyn at English Wikipedia