Watch List notes:

'Abbasid Caliphate. Al-Amin. AH 193-199 / AD 809-813. AR Dirham (25mm, 2.97 g, 11h). Ma'din Bajunays mint. Dated AH 193 (AD 808/9). Citing Sallam and Mahbub. Vardanyan –. Good VF. Apparently unpublished.

Sallam and Mahbub are named together on a dirham with the mint-name al-Muhammadiya dated AH 183 (cf. Morton & Eden 95, 24 October 2018, lot 60).