Tarì

[2] In the Islamic world, this type of coin was designated under the name ruba'i, or quarter-dinar, as it weighed 1.05 g (0.034 ozt) of gold.

[3] It became highly popular as it was smaller and therefore more convenient than the large-sized 4.25 g (0.137 ozt) dinar.

[1][4][3] When the Normans invaded Sicily in the 11th century, they issued tarì coins bearing legends in Arabic and Latin.

[6] The tarì coins were generally minted from African gold obtained from Misrata or Tunis in Northern Africa in exchange for grain.

[6] Nowadays, the tari is a subunit (1/12) of the scudo, souvenir coins issued by the Sovereign Military Order of Malta.

Norman tarì of Roger II of Sicily , with Arabic inscriptions, minted in Palermo . Now in the British Museum .
A pre-Norman Sicilian ruba'i/tarì in the name of Caliph Al-Mustansir . British Museum .
A pre-Norman Sicilian ruba'i/tarì in the name of Caliph Al-Hakim , 1005. British Museum .