1 Drachm - Abdallah ibn Tahir and Muhammad ibn Yahya Syr Darya Oghuz

The Syr Darya Oghuz occupied a peculiar political position in the early ninth century — nominally acknowledging Abbasid authority while operating as a functionally autonomous Turkic confederation along the lower reaches of the Jaxartes. This coin pairs the name of Abdallah ibn Tahir, the Tahirid governor of Khorasan who exercised real administrative power across the eastern caliphate from 828, with a local Oghuz figure, reflecting the layered tribute relationships that defined frontier monetary practice in this region. The Tahirids themselves were never caliphs — they were delegates — yet their names appeared on coinage across an enormous geographic range.