redrawn version of the attributed (fictitious) flag of the Ghaznavids, designed by Akib Öbek in 1969.
Ivan Sache &amp; Jarig Bakker, 4 July 2004, Flags of the World: "The flag attributed to the Gazneli is green with a grey crescent in canton and a peacock."

Google image search: Gazne bayragi; unfree image on tr-wiki: tr:Dosya:Gazne-devleti-bayragi.jpg.
compiled from File:Flag of Comoros (1978).svg and File:Pfau_links.svg
Own work, Szczepan1990, Jüppsche