ILKHAN: Arghun, 1284-1291, AR dirham (2.39g), Tus, AH, A-2156.8, Zeno-52644 (this piece), two lions on reverse, facing away from each other, a design used only at Tus, Fine to VF, RRR. This piece sold in the Gorny & Mosch Auction 161, Lot 5782, for $2278, but the estimate was just €200 (then about $285, October 2007).
Estimate: 400-600 USD