1/2 Drachm - Hani Abbasid Governors of Tabaristan - Arab-Sasanian

The Abbasid governors of Tabaristan — the mountainous region south of the Caspian Sea — continued striking coins in a debased Sasanian style long after the caliphate had otherwise standardized its coinage, a pragmatic concession to a province that had resisted Arab control more stubbornly than most. Tabaristan didn't fall fully until 760, and even afterward local administrative continuity meant Sasanian monetary conventions persisted for decades under new masters.

The half-drachm denomination itself is a regional peculiarity; the standard Arab-Sasanian series ran to full drachms.