GREAT MONGOLS: Chingiz Khan, 1206-1227, AV dinar (3.56g), MM, AH62x, A-1964, obverse legend includes his name, al-khaqan / al-a'zam / chingiz khan, with the kalima in the reverse field; the reverse margin text presumably cites the Abbasid caliph, but only the words amir al-mu'minin are legible; some flatness and flan split, unpublished and presumably unique, VF to EF, RRRR

ADDENDUM: Another example of the same dies is posted on Zeno, their #39635, so this is apparently the second known piece, not the first.

Estimate: 3250-4000 USD