1138 - 1139 AD., Crusader States, Normans of Sicily, Roger II, Follaro, Spahr 62.

Crusader States, Normans of Sicily, Kingdom of Sicily - Hautevilles, Roger II, king of Sicily 1130 - 1154 AD., Messina mint, struck AH 533 / 1138 - 1139 AD.,
Follaro (14-16 mm / 1,59 g),
Obv.: IC - XC , bust of Christ facing,
Rev.: Arabic legends saying: "PER ORDINE DE RE RUGGERO IL MAGNIFICO FORTE DELL'AIUTO DO DIO" and date AH 533,
Biaggi 1219 ; MEC14: 197 ; Spahr 62 ; the Maskukat collection SIC-006-003 .
For the history see http://home.eckerd.edu/~oberhot/italysouth.htm

thanks to Luigi for fixing the ID