Dating
151 AH (=AD 768)
Obverse
لا اله الا / الله و حده / لا شريك له, Arabic inscription in field, enclosed by Arabic inscription anti-clockwise from 1h, all enclosed by three linear circles and four sets of equidistant annulets of type 'oo'
Reverse
مما امر به / المهدي محمد / بن امير المؤمنين, Arabic inscription in field, Arabic letter 'mīm' centre above field inscription, Arabic letter ''ayn' centre below field inscription, enclosed by two linear circles, enclosed by Arabic inscription (Sura 9:33) anti-clockwise in margin from 130h, all enclosed by linear circle and five equidistant annulets
