Looking familiar, but what is it again?…
The PLO scarf is originally called a keffiyeh, and has been worn by Arabs residing in regions in Arabia, Jordan and Iraq for over a century. The word keffiyeh or kufiya means ‘from Kufa’, a city located on the banks of the Euphrates River in Iraq.
It is commonly worn in arid regions as it provides protection from sunburn, dust and sand. Its distinctive standard woven checkered pattern may have originated in an ancient Mesopotamian representation of either fishing nets or ears of grain, but the true origin of the pattern remains unknown. (wikipedia)
During the 1960s, usage of the black and white keffiyeh grew as Palestinian nationalism increased and the Palestinian leader Yasser Arafat adopted it as a symbol. Toward the end of the 1980s, the keffiyeh became a popular fashion accessory, I remember wearing one myself 😉
Now reading into it, it seems there are many slightly different patterns on sale, and this picture shows the loom of the last factory that made the original black and white pattern, made famous by Arafat. It was about to close down in 2010… (read more on rubysworldviews)