EMPIRE OF NICAEA. John III Ducas-Vatatzes. AD 1222-1254. Æ tetarteron (2,57 g). Magnesia mint. Facing bust of St. George, holding spear and shield; A within circle in left field; monogram of ωP in right field / Iω / ΔHC/Π/O ΔOY/K/A/C, John III standing facing, holding akakia in left hand and labarum in right. Dark green patina. DOC 58, SB 2116 Grade: 1+