CHAGHATAYID KHANS: Tuqa Timur, 1272-1291, AR dirham (1.88g), Khotan, ND, A-1985T, Nyamaa, p.80, Tibetan MAM ( "mother ") in obverse center, mint name on reverse, usual weakness, Fine, RR. Possibly related to the arrival of Marco Polo in Khotan in 1274.
Estimate: 180- 220 USD