Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Hadi, AH 169-170 / AD 785-786. Hemidrachm (Silver, 24 mm, 1.90 g, 4 h), anonymous type, Tabaristan, PYE 134 = AH 169 = AD 785/6. Crowned and draped Sasanian-style bust to right; behind head, GDH ('kingship' in Pahlawi); before head, 'AFZUT' ('may increase' in Pahlawi); in outer margin, APD / NWKW ('excellent' and 'good' in Pahlawi). Rev. Sasanian fire altar set on three steps, flanked by two attendants standing facing; to left, date; to right, mint TPURSTAN ('Tabaristan' in Pahlawi). Album 73. SICA I, 423. Walker, Arab-Sassanian, p. 155, ETN.22. Minor die breaks and with light deposits, otherwise, extremely fine.