Abbasid Caliphate, Tabaristan. Hemidrachm (silver, 2.05 g, 25 mm), anonymous type, circa 780-810 AD. Crowned and draped Sasanian-style bust to right. Rev. Sasanian fire altar set on three steps, flanked by two attendants standing facing; to left, date. Malek 172; Album 73. Extremely fine.