1 Drachm - al-Khalifa Harun & Ja`far Arab-Bukharan

Arab-Bukharan coinage occupied a peculiar administrative niche — nominally Abbasid in authority but deeply Sogdian in execution, produced to satisfy a local economy that had used its own coin fabric for centuries before the Islamic conquest. The pairing of al-Khalifa Harun (al-Rashid, the famous caliph of the Arabian Nights tradition) with Ja`far almost certainly refers to Ja`far ibn Yahya of the Barmakid family, the powerful vizier who effectively co-administered the eastern provinces during this decade before his abrupt execution in 803 on Harun's personal order.

The billon fabric itself reflects chronic silver shortages in Transoxiana during this period — a diluted alloy that local mints had already normalized before the Abbasids arrived.