Watch List notes:

ISLAMIC, 'Abbasid Governors of Tabaristan. 'Umar ibn al-'Alā. PYE 120-129/30 / AH 155-164/5 / AD 771-782. AR Hemidrachm (24mm, 1.81 g, 6h). Dated PYE 127 (AH 162 / AD 778/9). Crowned Sasanian-style bust right; "excellent" and "good" in 2nd and 3rd quarters of margin / Fire altar flanked by attendants; star and crescent flanking flames. Malek 78; Album 56. VF, toned, reverse encrusted.

From the J. P. Righetti Collection, 14.