Islamic - Afghan Dynasties. DURRANI: Fath Jang, 1842, AR rupee (9.49g), Kabul, year 1, AH1258, A-3148, KM-488.1, with sanat 1 ("year one") at the left of the obverse; the rarest of the four different types issued by Fath Jang during his single year in power! EF, RRR.