Watch List notes:

Messina o Palermo, Guglielmo II (1166-1189), Terzo di Apuliense, c. 1166-1189; MI (g 0,86; mm 15; h 12); W-Rx, palm-tree, Rv. Kufic legend. + TERCI [..] on border. Spahr 112.
Rare, very fine.