Deep mining the Coin Forum archives, I read this post and decided to add some history.
This coin was minted in Konstanttiniyuye, the Ottoman Turkish name we call Constantinople. The Ottoman Turks conquered the area in 1453
This silver coin, called an 'akce' , was minted during the reign of Bayezid II.
One of Bayezid II’s most significant actions during his reign was his decision to provide refuge to the Jews who were expelled from Spain and southern Italy in 1492 CE. He did so by dispatching Ottoman ships to rescue those fleeing the persecution of the Spanish Inquisition and proceeded to welcome them into his empire.
Don in SoCal