Nakfa Eritrea has acquired their own currency after giving up the Ethiopian Birr when I was there in Summer 1997.
The Currency of Eritrea is the "Nakfa". Issued in 1997, before that Eritrea and Ethiopia had the same currency, the "Birr". The official exchange rate is somewhere around 1USD to 15 Nakfa. Although...
Nakfa
IT used to be the polish currency before they join the euro union it was pronouced zvoti