John III Ducas (Vatatzes), emperor of Nicaea, 1222-1254. Trachy (Bronze, 29 mm, 2.42 g, 6 h), Thessalonica, circa 1249/50-1254. St. Demetrius seated facing in military attire on backless throne, nimbate and beardless, holding hilt of his sword in his right hand and shaft across knees in his left; in field to right, star. Rev. John III standing facing, holding labarum in his right hand and akakia in his left; in upper field to right, eight-pointed star. SB 2126. Some deposits and with a flan crack, otherwise, very fine.