The rial (French: rial sebili) or piastre was the currency of Tunisia until 1891. It was subdivided into 16 kharub (caroub), each of 13 fals (burbe). The fals was further subdivided into 6 qafsi (burben). The nasri (asper) was worth 2 fals. The denomination was often either not given on coins or only indicated by a numeral. Some rial denominated coins have a numeral over the Arabic letter r, ر.