BURJI MAMLUK: Tumanbay II, 1516-1517, AR dirham (0.94g) (al-Qahira), DM, A-1045A, typical weak strike for this short reign, about 30% flat, ruler's name quite clear, an extremely rare type, unknown to Balog, none in CoinArchives, and only 4 recorded on Zeno, Fine, RRR.
Estimate: 100-150 USD