Islamic - Shahs of Iran. QAJAR: Fath Ali Shah, 1797-1834, AR riyal (8.97g), Mashhad, AH1245, A-2893, with the additional mint epithet imam alayhi al-salâm, gorgeous strike and beautifully centered, VF-EF, RR. The "Imam" refers to Ali b. Abi Talib, the first Shiite Imam, whose shrine is located at Mashhad.