One of the many mysterious corners of Arab numismatics is the banknotes of Hejaz and circumstances surrounding their production. These unissued notes were only “discovered” in the early 1950s after the sale of King Farouk of Egypt’s collections. Few sets reportedly survive today and most collectors don’t even seriously consider trying to locate a set that is available for sale.
A very good article on this subject was written a while back by Peter Symes, and is available at his web site here: http://www.pjsymes.com.au/articles/Hedjaz.htm
I strongly recommend those interested to read this article.
Arabian Coins 