BAHRI MAMLUK: Ahmad I, 1342, AV dinar (5.56g), al-Qahira, AH742, A-929, Balog 269, ruler cited as al-malik al-nasir shihab al-dunya wa'l-din ahmad bin al-malik al-nasir muhammad, mint & date in the obverse field, mount removed, VF to EF, RRR, ex Gamal Amer Collection, ex Baldwin's Auction 83, Lot 5097. Only 3 examples posted on CoinArchives, including this piece, all of al-Qahira AH742.
Estimate: USD 2000 - 3000