Watch List notes:

TAHIRID: Tahir I, 821-822, AE fals (2.31g), Marw, AH206, A-1392, Zeno-53089 (this piece), obverse margin bism Allah amara bi-darbihi bi-marw tahir bin al-husayn fi sana sit wa mi'tayn, wonderful strike, lovely EF, RRR. Copper coins in the name of Tahir I were struck only at Marw in 206 and 207.

Estimate: 300-400 USD