Watch List notes:

ITALY, Sicilia (Regno). Guglielmo II il Buono (the Good). 1166-1189. Æ Follaro "stretto" (6mm, 1.57 g, 12h). Messina mint. + OPЄRATA IN VR[BЄ MЄSSANЄ], REX W/SC(OV)S in two lines; annulet above / al-malik/Ghulyalim/al-thani in Kufic in three lines; traces of duriba bi-amr al-malik almu'azzam al-musta'izz billah in Kufic in outer margin. Grierson, Coins of Medieval Europe 211; MIR 38; MEC 14, 401-7. Green and red-brown patina. VF.

From the Richard A. Jourdan Collection of Medieval European Coins, purchased from Clayton Rare Coins, 2014.