GREAT MONGOLS: Anonymous, AE broad dirham (6.69g), Samarqand, AH663, A-B1979, Dav-10, The central legend, divided on obverse & reverse, is Turkic (Uighur) in Arabic letters (samarqand-da yashlin tashlin / almaghuchi yal wa qulugh bolghay, which is translated as "in Samarqand, inside [or] outside, / [he] who does not take [this coin as money] will become a mercenary and a slave" (thanks to Zeno-4377 for the translation), nice Fine. This is the latest Samarqand issue assigned to the Chingizids, thereafter the mint was Chaghatayid.
Estimate: USD 250 - 350