ISLAMIC, 'Abbasid Caliphate. Al-Musta'in, AH 248-252 / AD 862-866. Dinar (Gold, 21 mm, 4.23 g), citing the caliph al-Musta'in billah and the heir apparent al-Abbas as 'ibn Amir al-Mu'minin ('son of the Commander of the Faithful' in Kufic), Marw, AH 251 = AD 874/5. Bernardi 161Ph. Zeno-200028 (this coin). Rare. Minor nicks and with a few light scraches, otherwise, good very fine.
From the collection of Dr. D. Löer, ex Heritage Europe Auction 58, 15 May 2018, 6285.