Yuzlik
or Pataque . The largest of the silver coins of the Ottoman Empire. It was originally equal to two and one half Piastres, or one hundred Paras, and its weight at first was nine hundred grains, but in the reign of Selim III (1789-1807) it was little more than a billon coin of about five hundred grains. The name is derived from yuz, i.e., hundred.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)