ISLAMIC, 'Abbasid Caliphate. temp. Al-Rashid, AH 170-193 / AD 786-809. Dirham (Silver, 24 mm, 2.91 g, 9 h), al-Muhammadiya, AH 188 = AH 803/4. SICA III, 1484. Beautifully toned. Good very fine.
From a Swiss collection of Umayyad and Abbasid coins, assembled in the 1970-1980s (with original flip with S. Album's description).