Watch List notes:

'Abbasid Caliphate. Al-Mu'tadid. AH 279-289 / AD 892-902. AV Dinar (23.5mm, 3.24 g, 12h). Wasit mint. Dated AH 288 (AD 900/1). Bernardi type 211 (this mint not recorded); cf. NGSA 7 (27 November 2012), lot 1872 (dated AH 287). Edge slightly ragged at 5h on obverse, tiny spots of accretion on obverse. EF. Of the highest rarity, apparently unpublished.

Apart from the specimen offered at NGSA (listed above, hammered for CHF 14,000), this appears to be the only recorded 'Abbasid dinar of Wasit from the reign of al-Mu'tadid.