Watch List notes:

Fatimids. al-Hakim bi-Amr Allah. AH 386-411 / AD 996-1021. AV Dinar (20.6mm, 4.02 g, 6h). Al-Mahdiya mint. Dated AH 390 (AD 999/1000). Cf. Nicol 1212 (dated AH 389). Edge shaved, some surface marks. Near VF. Of the highest rarity, apparently unpublished.

While Nicol records quarter-dinars of al-Mahdiya for AH 390 (Nicol 1213), this appears to be the first recorded full dinar of this mint and date.