Watch List notes:

ABBASID COPPER COINS BY MINTS ar-Râfiqa (the government quarter of Raqqa, Northern Syria, caliphal residence under Hârûn r-Rashîd)
Hârûn ar-Rashîd, 170-193 H/786-809 AD, and 'Isâ ibn Abân Fals 189 H, with the caliphal name only. 5.57 g. A second specimen showing the original brass surface. Very fine