John III Ducas (Vatatzes), emperor of Nicaea, 1222-1254. Trachy (Bronze, 27 mm, 4.10 g, 6 h), Magnesia. B - B St.George standing facing, holing spear in his right hand an placing his left on shield set on ground. Rev. John III enthroned facing, wearing crown and loros; holding sword across his knees; around, traces of legend. SB 2108. Rare. Some deposits on the obverse, otherwise, good fine.