Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Al-Mu'tamid, AH 256-279 / AD 870-892. Dinar (Gold, 21 mm, 2.92 g, 12 h), reduced weight. Citing the caliph as al-Mu'tamid billah and the caliph's brother, al-Muwaffaq, San'a', AH 268 = AD 881/2. Bernardi 177El. A rare date. Extremely fine.