Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. al-Mansur. AH 136-158 / AD 754-775. AR Hemidrachm (26mm, 1.88 g, 8h). Issue of 'Umar ibn al-'Ala, governor in Tabaristan. Tabaristan mint. Dated PYE 122 = AH 157 (AD 773/4). Stylized crowned Sassanian style bust right; 'mr in Arabic to right; 'pd in Pahlavi to lower right in outer margin; 'lwn or sly' in Pahlavi to lower left / Fire altar flanked by attendants; pellets flanking flames; date to left, mint to right; alternating triple pellets and star-in-crescents in outer margin. Malek 66.1-15; Album 56; ICV 104. VF, areas of light toning, scattered deposits and cleaning marks.