Watch List notes:

Abbasid, al-Ma'mun (194-218h), dirham, Madinat Arran 209h, rev., citing 'Ubaydallah b. Yahya above and Ja'far below, 3.25g (Vardanyan -), minor staining on obverse, better than very fine and apparently an unpublished variety. Ja'far appears to be a previously unknown governor, not otherwise attested on the silver coinage struck at Madinat Arran or in the surrounding area at this period.
(180-220 GBP)