Constans AE3 Thessalonica mint, 337-350 AD.
2.51 grams, 20.15 mm (ca 23mm corrected flan size)
 
Obv: DN CONSTA-NS PF AVG, pearl diademed, draped, 
cuirassed bust right
Rev: FEL TEMP-REPARATIO, Emperor standing left on galley,
holding labarum and phoenix on globe; Victory seated 
at the stern, steering the galley
Mintmark TES gamma

RIC VIII Thessalonica 109, rated common
cf Sear 3973

Used with permission of TimeLine Originals (www.time-lines.co.uk). July 2009

Note from Dane: There are two references for these
coins, depending on the size:
RIC VIII Thessalonica 109, common, 22-23 mm
RIC VIII Thessalonica 120, common, 17-19 mm
These sizes are for full flan examples.