Manuel Comnenus-Ducas. Despot of Thessalonica, 1230-1237. billon Aspron Trachy, 15mm, 0.93 g. Small module issue. 

St. Michael standing facing, holding sword horizontally.
Manuel, holding labarum, and St. Demetrius, holding sword, 
seated facing side by side, holding model of city of Thessalonica between them. 

Sear Byz 2183 (larger module); DOC 9.6; CLBC 13.9.3. 

With permission of cngcoins.com, auction 313, Lot 484, Oct 2013