John Comnenus-Ducas Empire of Thessalonica, 1237-1242. 
Aspron trachy, Thessalonica, 0.74 g. 

Winged and nimbate facing head of cherub. 
IW-OLG, John, no beard, on left, and St. Demetrius on right, 
holding sword over shoulder, both standing facing, holding 
sheathed sword between them, point downwards (may be a cross 
with a small globe on top)

Series III, DO 25a. Sear 2210. LBC 401.
 
Used with permission of Numismatica Ars Classica AG, Feb. 2010