John Comnenus-Ducas, as emperor of Thessalonica, 1237-1242. Trachy (Bronze, 18 mm, 0.58 g), Thessalonica. Crossed with pellets in angles. Rev. IⲰB Half-length figure of John Comnenus-Ducas facing, holding cross-tipped scepter; above, towered arch. Lianta 429. SB 2221. Very rare. Light corrosion, minor edge crack and struck from a somewhat worn obverse die, otherwise, about very fine.