About #6 - 500 riyals type 1973
Qatar. Qatar Monetary Agency. 1973-1976 Issues. Date: no date on the note. Dimensions: 166 x 72 mm. Watermark: falcon head. Material: paper. Solid security thread. Printer: Bradbury, Wilkinson & Co LD, New Malden Surrey, England. Multicolored front and back printing, predominantly olive green. Description of the front: background made up of arabesques and repeating patterns. Texts in Arabic. Prefix and numbering in black. On the right, the Qatari coat of arms in a rosette with a dhow and two palm trees. Only one signature combination in black with the Minister of Finance: Abdulaziz Al-Thani. Value "٥٠٠" in the angles. Description of the back: background made up of arabesques. Texts in English. View of Mosque of the Sheikhs and the minaret. Value "500" in the corners. Banknote illustration from The Ruth W. Hill Collection. Very rare.