Album 93, Walker 317-8 (Arab-Sasanian); “Bukhar-Hudat” type; Billon 2.48 g., 25 mm.; Al-Mahdi (AH 158-169 / AD 775-785); Obv: Imitating Sasanian king Bahram V. Crowned bust right; around, Sogdian legend and “Muhammad” in Arabic / Rev: Fire altar with attendants, head right on altar; VF-