Watch List notes:

SAFFARID: Tahir b. Khalaf, 1000-1002, AV full dinar (3.86g), Sijistan, AH391, A-B1424, cited only as Tahir on the obverse, without his patronymic, who is cited on both his fractional gold dinars and silver dirhams, and citing the Ghaznavid overlord Mahmud as Yamin al-Dawla Abu'l-Qasim on the reverse, superb style, EF, RRRR. No examples are filed on Zeno and CoinArchives; our only reference is to one example in the Zamana Collection.

Estimate: 2,000-2,600 USD