Watch List notes:

TAHIRID: Tahir I, 821-822, AR dirham (2.85g), al-Muhammadiya, AH206, A-1391, citing the local governor Ishaq b. Yahya, and the Tahirid ruler only by his laqab dhu 'l-yaminayn, ("possessor of two right hands", i.e., ambidextrous, here meaning that he held both military and civil positions), VF, RR.

Estimate: 120-160 USD