1 Dirham - Al-Husayn b. Ahmad

The Alids of Tabaristan and the surrounding Caspian highlands produced a succession of short-lived autonomous rulers in the ninth century who struck silver dirhams as much to assert political legitimacy as for commercial use. Al-Husayn b. Ahmad governed in a region where Alid claims to authority were perpetually contested by Abbasid governors, and coinage was one of the few durable assertions of independent rule available to him. The reference number A#H1524 places this firmly within Album's classification of post-Abbasid transitional Alid issues — a tight numismatic category with relatively few confirmed specimens.