Is 'Lira' a proper noun

Answer 1

No, the noun lira is a common noun, a word for the monetary unit of Turkey and Syria, and of Italy prior to switching to the euro.

The names for units of money are common nouns, such as a lira, a euro, a peso, a yen, a dollar, etc.

Answer 2

Yes, 'Lira' is a proper noun. It is used to refer to the currency of several countries including Turkey, Lebanon, and Italy.