TAHIRID: 'Abd Allah b. Tahir, 828-845, AE fals (1.43g), NM, ND, A-H1395, countermarked, in a triangle, an undeciphered name, presumably of a governor, followed by the word ja'iz, probably unique (both with and without the countermark!), Fine to VF, RRR.
Estimate: 100-200 USD