BANU IFRAN: Ya'la I, fl. 906/907, AR dirham (1.32g), NM, AH295, A-457K, also citing Ishaq b. Mansur, who was at one time governor at al-Qayrawan in Tunisia, but this coin is of central Algerian style, and is believed to have been at or near Tubna, an abandoned city near the modern city of Biskra in Algeria; unpublished and unique! VF, RRRR.

Estimate: USD 300 - 400