John III Ducas (Emperor of Nicaea, 1222-1254). Æ Trachy (28,3mm, 2.8g). Thessalonica mint. The Theotokos (Virgin Mary) enthroned facing, holding head of the Infant Christ; lis above cushion to either side. R/ John and St. Demetrius standing facing, holding patriarchal cross between them. Sear 2128.