Watch List notes:

Islamic, Abbasid, al-Mahdi, (A.H. 158-169) (A.D. 775-785), gold dinar, (3.77 g), anonymous dinar, no mint name (probably Madinat al-Salem, Baghdad), dated A.H. 164 = A.D. 780, (A.214, Wilkes 378). Worn, slightly clipped, fine and scarce.

Ex Dr L.J. Sherwin Collection and previously from London Stamp exchange, January 1972.