Dating
189 AH (=AD 805)
Obverse
لا اله الا / الله و حده / لا شريك له, Arabic inscription in field, enclosed by Arabic inscription anti-clockwise from 1h, enclosed by two linear circles, five equidistant annulets, final enclosed linear circle
Reverse
علي / محمد رسول الله / مما امر به الامير المامون / عبد الله بن امير المؤمنين ولي / ولي عهد المسلمين / م, Arabic inscription in field, Arabic letter mīm centre below field inscription, enclosed by thin linear circle, Arabic inscription (Sura 9:33) anti-clockwise in margin from 2h, all enclosed by thin linear circle