ABBASID: al-Rashid, 786-809, AR dirham (3.00g), al-Muhammadiya, AH176, A-219.5a, Lowick-1700, Zeno-180446, citing the caliph only as al-khalifa al-rashid, followed by the vizier, 'ala yaday ja'far bin yahya, none on CoinArchives, EF, RRR.
Estimate: 400-500 USD