BURJI MAMLUK: Barsbay, 1422-1438, AR dirham (3.00g), al-Qahira, AH825, A-P999, SNAT-849/851. B--, first weight standard of Barsbay's dirham, extremely rare type, only recently discovered, VF, RRR. With the denomination dirham in the obverse center.
Estimate: 120-160 USD