Maximianus AE follis. AD 317-318, Thessalonica. 17 mm, 1.7 g.

DIVO MAXIMIANO OPTIMO IMP, Veiled and laureate 
bust right.
REQVIES OPTIM-ORVM MERITORVM, Emperor seated left on curule 
chair, holding sceptre and raising right hand

Mintmark dot TS dot Gamma dot.
 
RIC VII Thessalonica 24; Sear 16413

With permission of Numismatik Lanz, auction 97.