Numismatik Naumann (formerly Gitbud & Naumann), Auction 10, Lot 816 EMPIRE OF THESSALONICA. John Comnenus-Ducas (1237 - 1242). Trachy. Thessalonica. Obv: Brockage of reverse. Rev: Emperor standing facing, crowned, holding labarum and akakia. Sear 2214. Condition: Very fine. Weight: 0.9 g. Diameter: 18 mm.