Byzantine 1 Hyperpyron John III Ducas Vatatzes Emperor of Nicaea(1222-1254). AV hyperpyron. Magnesia 1232-1254. Christ Pantocrator enthroned facing / John. holding labarum and akakia crowned by the Virgin Mary. (3.06 gm). Scratches. Sear 2073; DOC IV 4; BY4273