ISLAMIC, 'Abbasid Caliphate. Al-Mu'tamid, AH 256-279 / AD 870-892. Dirham (Silver, 23 mm, 3.00 g, 7 h), citing the caliph al-Mu'tamid 'ala Allah, Surra man Ra'a, AH 263 = AD 876/7. SICA II, 493. Nicely toned. Areas of weakness, otherwise, very fine.
From a Swiss collection of Umayyad and Abbasid coins, assembled in the 1970-1980s (with original flip with S. Album's description).