GREAT MONGOLS: Anonymous, AE dirham (7.65g), Bukhara, AH663, A-A1979.3, Zeno-123038 (this piece), Arabic sikka / bukhara in obverse center, with the Arabic word al-mulk three times around, the Chinese character ke ("tax") in the reverse center, with the full mint & date around, almost totally clear on this piece, almost never found in this quality, VF, RR. No example with the legible date has yet appears on CoinArchive.
Estimate: 500-600 USD