The Saudi Arabia 20 Riyals Banknote was issued by the Saudi Arabian Monetary Agency in 1999 to commemorate the centenary of the Kingdom of Saudi Arabia. The obverse side shows King Abdul Aziz and the Quba Mosque in Medina. The reverse side features the centenary logo and the Jabal an-Nour (The Mountain of Light) near the city of Mecca. The banknote contains a solid security thread and a windowed Starwide security thread with demetalized Saudi Arabian Monetary Authority in Arabic text. It also contains a watermark with a King Abdul Aziz with an electrotype 20 design. The brown banknote measures 152 x 69 mm and has a radar serial number. This particular banknote is in uncirculated condition and has been TAP authenticated with a grade of 60-70.