Tulunid, Harun b. Khumarawayh (283-292h), Dirham, Dimashq 290h, 2.97g (Grabar -; W 787). Flan flaws, weak in parts, only fine but extremely rare, believed to be an unpublished date for dirhams of this mint.
The coin of this mint and date cited by Diler and Zambaur is a dinar, not a dirham. See lot 181 for an Abbasid dirham of this mint dated 291h.