'Abbasid caliphs
al-Hâdî Mûsâ, 169-170 H./785-786 AD. Dirham 169 H., Madînat as-salâm, with the name of the caliph and the marks bâ-râ above and 'ain below the rev. field. Lowick/Savage 1260; Qatar 1572. 2.93 g.; Very rare Extremely fine
Acqu. Jean Elsen, Brussels, auction 69, March 2002, lot no. 807.