Ethiopia

Banknote & Workd Paper Money Collection - Ethiopia. Currency: birr

The birrdollar was the official English translation of birr. Today, it is officially birr in English as well.

In 1931, the Emperor of Ethiopia, Haile Selassie I, formally requested that the international community use the name Ethiopia (as it had already been known internally for at least 1,600 years) instead of Abyssinia, and the issuing Bank of Abyssinia also became the Bank of Ethiopia. Thus, the pre-1931 currency could be considered the Abyssinian birr and the post-1931 currency the Ethiopian birr, although it was the same country and the same currency before and after.

Wikipedia