Watch List notes:

Pre-reform issues, Tabaristan ('Abbasid governors). Sulayman b. Musa. AH 171-173 / AD 787-789. AT Hemidrachm (24mm, 3h). Tabaristan mint. Dated PYE 137 = AH 172 (AD 788/9). Crowned Sasanian style bust right, with face replaced by rhomboid bearing Arabic bakh (= good); 'pd and nwk' in Pahlavi in outer margin / Fire altar flanked by attendants; stars flanking flames. Malek 101.1-5; Album 65. In NGC encapsulation 6290519-022, graded Ch MS.