Derafsh Kaviani
The Derafsh Kaviani (Persian: درفش کاویانی, lit. 'Standard of Kaveh') was the legendary and historical national flag of pre-Islamic Iran, notably serving as the official standard of the Sasanian Empire (224–651). It is identified with several figures in Iranian mythology, namely Kaveh the Blacksmith, but also Jamshid and Fereydun.