Watch List notes:

Abbasid, al-Hadi (169-170h), dirham, al-Haruniya 170h, rev., citing Harun, Ibrahim and Jarir, 3.03g (Vardanyan 191), very fine and toned, scarce. Ex Silvio Baldassari Collection, Leu Numismatics (Zurich) auction 62, 18 May 1995, lot 352.