The picture shows a Saudi banknote of twenty riyals (commemorative issue) issued during the reign of King Fahd bin Abdulaziz Al Saud - may God have mercy on him - in the year 1419 AH (1999 AD). Commemorative Issue Details Occasion: On the occasion of the 100th anniversary of the founding and unification of the Kingdom of Saudi Arabia (Centennial). Front: Features a picture of King Abdulaziz and the name of the Saudi Arabian Monetary Agency. Back: Features Mount Al-Noor in Mecca and the Centennial logo.