Watch List notes:

Pre-reform issues, Tabaristan ('Abbasid governors). Yahya b. Mikhnaq. AH 162-165 / AD 779-781. AR Hemidrachm (25mm, 1.93 g, 9h). Tabaristan mint. Dated PYE 129 (AH 164 [AD 780/1]). Name of governor before bust on obverse, Pellet above second 'T' of mint-name on reverse. Malek 89.2; Album 60. Deposits. Near EF. Rare.