ABBASID: al-Rashid, 786-809, AR dirham (2.50g), Ifriqiya, AH170, A-219.4, with the caliph cited as merely al-khalifa harun, VF, RR. With an addition word in the reverse field, divided between top & bottom, either "'arab" or "gharb" (i.e., "arab" or "west").
Estimate: 100-150 USD