OTTOMAN EMPIRE: Mehmet IV, 1648-1687, AV sultani (3.47g), Baghdad, AH1058, A-1383, NP-443, Damali-BG.A1, reverse with sultan al-birrayn ... formula, bold strike, stylistically identical to the specimens illustrated by Damali & Pere, bold strike, EF, RRR.
Estimate: 2,000-2,600 USD