Do exchangers in Istanbul work with “third currencies”? (pound sterling, Swiss franc, Chinese yuan, Arab dinars / dirhams, and even some Australian dollar)
There are many exchange offices and banks in Istanbul where you can exchange foreign currency for Turkish Lira. It is best to exchange US dollars or Euros as these currencies are the most common in Turkey and offer the best exchange rates.
As for the exchange of third currencies, this is a more difficult option, since not all exchange offices in Istanbul can exchange these types of currencies. Usually, the most common currencies such as pounds sterling, Swiss franc and Japanese yen can be exchanged at major banks and exchange offices, but for less common currencies it may be necessary to find specialized exchange offices or banks.